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• SCCM SP2 - OOB Management Certificates Problems

  - by Achinoam

  Hi experts, I have a vPro client computer with AMT 4.0. It was importeed successfully via the Import OOB Computers wizard, and after sending a "Hello- packet" it became provisioned. (The SCCM GUI displays AMT Status: Provisioned). But when I try to perform power operations on this machine, they always fail with the following lines in the log: AMT Operation Worker: Wakes up to process instruction files 7/29/2009 10:59:29 AM 2176 (0x0880) AMT Operation Worker: Wait 20 seconds... 7/29/2009 10:59:29 AM 2176 (0x0880) Auto-worker Thread Pool: Work thread 3884 started 7/29/2009 10:59:29 AM 3884 (0x0F2C) session params : https:/ / amt4.domaindemo.com:16993 , 11001 7/29/2009 10:59:29 AM 3884 (0x0F2C) ERROR: Invoke(invoke) failed: 80020009argNum = 0 7/29/2009 10:59:31 AM 3884 (0x0F2C) Description: A security error occurred 7/29/2009 10:59:31 AM 3884 (0x0F2C) Error: Failed to Invoke CIM_BootConfigSetting::ChangeBootOrder_INPUT action. 7/29/2009 10:59:31 AM 3884 (0x0F2C) AMT Operation Worker: AMT machine amt4.domaindemo.com can't be waken up. Error code: 0x80072F8F 7/29/2009 10:59:31 AM 3884 (0x0F2C) Auto-worker Thread Pool: Warning, Failed to run task this time. Will retry(1) it 7/29/2009 10:59:31 AM 3884 (0x0F2C) After investigation, I've seen that the problem occurs already on the 2nd stage of the provisioning: Start 2nd stage provision on AMT device amt4.domaindemo.com. 8/2/2009 4:55:12 PM 2944 (0x0B80) session params : https: / / amt4.domaindemo.com:16993 , 11001 8/2/2009 4:55:12 PM 2944 (0x0B80) Delete existing ACLs... 8/2/2009 4:55:12 PM 2944 (0x0B80) ERROR: Invoke(invoke) failed: 80020009argNum = 0 8/2/2009 4:55:14 PM 2944 (0x0B80) Description: A security error occurred 8/2/2009 4:55:14 PM 2944 (0x0B80) Error: Cannot Enumerate User Acl Entries. 8/2/2009 4:55:14 PM 2944 (0x0B80) Error: CSMSAMTProvTask::StartProvision Fail to call AMTWSManUtilities::DeleteACLs 8/2/2009 4:55:14 PM 2944 (0x0B80) Error: Can not finish WSMAN call with target device. 1. Check if there is a winhttp proxy to block connection. 2. Service point is trying to establish connection with wireless IP address of AMT firmware but wireless management has NOT enabled yet. AMT firmware doesn't support provision through wireless connection. 3. For greater than 3.x AMT, there is a known issue in AMT firmware that WSMAN will fail with FQDN longer than 44 bytes. (MachineId = 17) 8/2/2009 4:55:14 PM 2944 (0x0B80) STATMSG: ID=7208 SEV=E LEV=M SOURCE="SMS Server" COMP="SMS_AMT_OPERATION_MANAGER" SYS=JE-DEV-MS0 SITE=JR1 PID=1756 TID=2944 GMTDATE=Sun Aug 02 14:55:14.281 2009 ISTR0="amt4.domaindemo.com" ISTR1="amt4.domaindemo.com" ISTR2="" ISTR3="" ISTR4="" ISTR5="" ISTR6="" ISTR7="" ISTR8="" ISTR9="" NUMATTRS=0 8/2/2009 4:55:14 PM 2944 (0x0B80) This error is consistent with all the other 2nd stage provisioning tasks. (Add ACLs, Enable Web UI, etc.) I've opened the certification authority, and I see that the certificates were issued to the SCCM Site server instead of the AMT client! What could be the reason for this failure? What is the problematic definition for the certificate? Thank you in advance!!!

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• Ping Unknown Host on CentOS at EC2

  - by organicveggie

  Weird problem. We have a collection of servers running CentOS 5 on EC2. The setup includes two DNS servers and two LDAP servers. DNS has a CNAME pointing at the primary LDAP server. One machine (and only one machine) is giving me problems. I can ssh into the server using LDAP authentication. But once I'm on the machine, ping won't resolve the LDAP host even though DNS seems to work fine. Here's ping: $ ping ldap.mycompany.ec2 ping: unknown host ldap.mycompany.ec2 Here's the output of dig: $ dig ldap.mycompany.ec2 ; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_5.3 <<>> ldap.studyblue.ec2 ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2893 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;ldap.mycompany.ec2. IN A ;; ANSWER SECTION: ldap.mycompany.ec2. 3600 IN CNAME ec2-hostname.compute-1.amazonaws.com. ec2-hostname.compute-1.amazonaws.com. 55 IN A aaa.bbb.ccc.ddd ;; Query time: 12 msec ;; SERVER: 10.32.159.xxx#53(10.32.159.xxx) ;; WHEN: Tue May 31 11:16:30 2011 ;; MSG SIZE rcvd: 107 And here is resolv.conf: $ cat /etc/resolv.conf search mycompany.ec2 nameserver 10.32.159.xxx nameserver 10.244.19.yyy And here is my hosts file: $ cat /etc/hosts 10.122.15.zzz bamboo4 bamboo4.mycompany.ec2 127.0.0.1 localhost localhost.localdomain And here's nsswitch.conf $ cat /etc/nsswitch.conf passwd: files ldap shadow: files ldap group: files ldap sudoers: ldap files hosts: files dns bootparams: nisplus [NOTFOUND=return] files ethers: files netmasks: files networks: files protocols: files rpc: files services: files netgroup: files ldap publickey: nisplus automount: files ldap aliases: files nisplus So DNS works the way I would expect. And I can ping the ldap server by ip address. And I can even access the box with SSH using LDAP authentication. Any suggestions?

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• DLINK WBR-1310B Wireless Router seems to hang...

  - by Ira Baxter

  I have a brand new DLINK-1310B Wireless Router (box never before opened, although I bought it at the neighborhood computer junk store). I am using it at home (and in fact am using it at this instant from a wireless laptop). When operative, I can ping it at 192.168.0.1, and I can log into it from the PC attached to it by LAN and from the wireless PC at //192.168.0.1. In the course of the day since I've installed, it seems to have locked up 3 times. Each time the symptoms are my web browser (or other IP service, e.g., POP3) stops with a "No internet connection" error. Attempts to contact the router via 192.168.0.1 get no reaction, from either the wireless laptop or from the hardwired PC sitting next to it. It doesn't respond to pings to that address either. Power cycling the router fixes it. I've seen discussion in other questions about aging cheap electronics. Its too new to be aged. Anybody else seen this behavior with a DLINK-1310? Or do I just need to exchange it for another and try again? (I hate rolling dice, I bought the DLINK because a previous Linksys died of apparant heating problems, how many do I have to cycle through before I get something that works and is long-term stable?). Remarkably, nobody talks about how much software is in a router. Is the stuff just buggy? EDIT: Happened again, while I was working on the wireless Vista laptop. (Seems like once an hour?) I was a little more careful this time. The wireless laptop can ping it. It can't get the login screen. I visited the LAN-connected PC (takes me a minute to walk from the laptop to the PC at the other end of the house), and attempted to visit a random web page. Surprise, that worked! And, now, after a minute walking back to the laptop, I can reconnect the wireless laptop, and get to the login page from it. Strange the time/date has been reset back to 2002. (I'll swear I set it and saved the system configuration after updating the firmware; it made me redo every other bit of reconfiguration again). Is there something funny about wireless leases expiring? The router says the leases it is handing out are good for 180 minutes, and the delay-to-inaccessible was only about an hour. The DSL connection seems to have a 10 minute lease.

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• EMC/Legato/Networker Failed to recover files : Cross Platform Recovery not supported.

  - by marc.riera

  Software used to backup: EMC / Legato Networker legato server : windows legato clients: same hardware (2 years ago fedora something , now ubuntu ) Trying to recover from an old client, which is no longer available. So this is the thing. On 07/20/2008 we backed up a samba server(fedora something) to a tape , setting 1 year as browse policy and retention policy. Now this tape is recyclable. We took down the dns name. We deleted the legato client configuration. That legato client was reinstalled and is doing other stuff on ubuntu 10.04, with a different name but same ip. Now, 2 years and some month later #### Now we need to recover a folder from 2008 backup, on the fedora-samba-server. First thing, legato does not show the client name because the config was deleted. We create it again. We just set the old dns back on track, pointing the same ip, where the old server was, same MAC address ;). We created a new 'old client configuration' pointing to the new server. (different legato ip for client "I suppose" ) The ssid where the needed folder is on 2 tapes, 20 and 22. The index for that backup is on tape 21. We put this tapes on the jukebox (IBMT4000) -- not important for the issue -- All three tapes expired its browsable and recoverable time. So they are on recyclable. We get the clone id from the ssid with following command: mminfo -avot -q "ssid=<ssid>" -r cloneid We set the tapes to notrecyclable nsrmm -S <ssid>/<cloneid> -o notrecyclable We change the retention for the tapes for a future date nsrmm -S <ssid> -e 01/20/2011 We check the dates are correct : mminf -avV -q "ssid=<ssid>" -r ssbrowse(26),ssretent(26),savetime So far its OK. We close the terminal. Restart the server, just for being sure. Finally, we recover the index for that ssid where the folder should be. nsrck -L7 -t "07/20/2008" oldservername.domain.org There, we open the Networker User, select the server, select the old client as source, select the new client as destination. And this is what I get. imgur image of output -- http://i.imgur.com/1nOr8.png Should I understand that I need to install whatsoever operating system that was running on the old "linux server"/"networker client" to be able to restore 26Mb of files? thanks

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• Keep source IP after NAT

  - by John Miller

  Until today I used a cheapy router so I can share my internet connection and keep a webserver online too, while using NAT. Users IP ($_SERVER['REMOTE_ADDR']) was fine, I was seeing class A IPs of users. But as traffic grown up everyday, I had to install a Linux Server (Debian) to share my Internet Connection, because my old router couldn't keep the traffic anymore. I shared the internet via IPTABLES using NAT, but now, after forwarding port 80 to my webserver, now instead of seeing real users IP, I see my Gateway IP (Linux Internal IP) as any user IP Address. How to solve this issue? I edited my post, so I can paste the rules I'm currently using. #!/bin/sh #I made a script to set the rules #I flush everything here. iptables --flush iptables --table nat --flush iptables --delete-chain iptables --table nat --delete-chain iptables -F iptables -X # I drop everything as a general rule, but this is disabled under testing # iptables -P INPUT DROP # iptables -P OUTPUT DROP # these are the loopback rules iptables -A INPUT -i lo -j ACCEPT iptables -A OUTPUT -o lo -j ACCEPT # here I set the SSH port rules, so I can connect to my server iptables -A INPUT -p tcp --sport 513:65535 --dport 22 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A OUTPUT -p tcp --sport 22 --dport 513:65535 -m state --state ESTABLISHED -j ACCEPT # These are the forwards for 80 port iptables -t nat -A PREROUTING -p tcp -s 0/0 -d xx.xx.xx.xx --dport 80 -j DNAT --to 192.168.42.3:80 iptables -t nat -A POSTROUTING -o eth0 -d xx.xx.xx.xx -j SNAT --to-source 192.168.42.3 iptables -A FORWARD -p tcp -s 192.168.42.3 --sport 80 -j ACCEPT # These are the forwards for bind/dns iptables -t nat -A PREROUTING -p udp -s 0/0 -d xx.xx.xx.xx --dport 53 -j DNAT --to 192.168.42.3:53 iptables -t nat -A POSTROUTING -o eth0 -d xx.xx.xx.xx -j SNAT --to-source 192.168.42.3 iptables -A FORWARD -p udp -s 192.168.42.3 --sport 53 -j ACCEPT # And these are the rules so I can share my internet connection iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE iptables -A FORWARD -i eth0:1 -j ACCEPT If I delete the MASQUERADE part, I see my real IP while echoing it with PHP, but I don't have internet. How to do, to have internet and see my real IP while ports are forwarded too? ** xx.xx.xx.xx - is my public IP. I hid it for security reasons.

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• TFS2010 Hangs “Waiting for Build Agent”

  - by Qpirate

  I have asked this question over on SO the link to the question is here but i am hoping this is a better place to ask it. I have 3 VM's each running the TFS Build Host Service 1 has 1 controller and 1 agent 2 have 2 Build Agents each. Most of the time (7\10 builds) it comes back with the following error message TF215097: An error occurred while initializing a build for build definition BUILD_DEFINITION: There was no endpoint listening at http://MACHINE1:9191/Build/v3.0/Services/Controller/14 that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details. and there is no errors when i do get this message. the following is the config file that i have created <configuration> <appSettings> <add key="traceWriter" value="true"/> </appSettings> <system.diagnostics> <switches> <add name="BuildServiceTraceLevel" value="4"/> <add name="API" value="4"/> <add name="Authentication" value="4"/> <add name="Authorization" value="4"/> <add name="Database" value="4"/> <add name="General" value="4"/> <add name="traceLevel" value="4"/> </switches> <trace autoflush="true" indentsize="4"> <listeners> <add name="myListener" type="Microsoft.TeamFoundation.TeamFoundationTextWriterTraceListener,Microsoft.TeamFoundation.Common, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" initializeData="c:\logs\TFSBuildServiceHost.exe.log" /> <remove name="Default" /> </listeners> </trace> </system.diagnostics> </configuration> I do have my own custom activities in my build process but this does not seem to be a problem as sometimes the build actually does go. I have tried refreshing the template as some sites suggest. Has anyone come across a solution for this problem? or can anyone tell me how to catch these errors when they happen?

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• How to Setup Ubuntu Mail Server with Google Apps?

  - by Apreche

  I have a domain, let's call it foobar.com. All of the MX records for foobar.com point to Google's mail servers because I am using Google Apps for your domain to manage it. It's great because everyone gets all the advantages of GMail, but our e-mail addresses aren't @gmail.com. I also have a server. Primarily, it's a web server, but it also serves other things. One of the things it serves is the web site for foobar.com and also sites for various virtual hosts such as shop.foobar.com and forum.foobar.com. The server is running Ubuntu 8.04, because I like using LTS releases in production. The thing is, there are various applications running on the server that need the ability to send out emails. Various applications, like the cron jobs, send me e-mails in case of errors. Some of the web applications need to send e-mail to users when they forget their passwords, to confirm new registered users, etc. Lastly, it's nice to be able to send e-mail from the command line using the mail command, or mutt. How can I setup the mail on the web server to go through the Google apps mail servers? I don't need the web server to receive mail, though that would be cool. I do need it to be able to send mail as any legitimate address @foobar.com. That way the forum application can send mails with [email protected] in the from field, and the ecommerce application will have [email protected] in the from field. Also, by sending the mail through the Google servers, we can avoid a lot of the problems with the e-mails being blocked by various spam filters on the web. Google's SMTP servers are trusted a lot more than mine would be. I'm pretty good with administering Linux systems, but I am absolutely brain dead when it comes to e-mail. I need step by step directions from beginning to end on how to set this up. I need to know every thing to install, and every single change to the configuration files that is necessary. I have tried following various howtos and guides in the past, but none of them were quite right. Either they didn't work at all, or they offered a configuration that is not what I wanted. Please help. Thanks.

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• Routing table with two NIC adapters in libvirt/KVM

  - by lzap

  I created a virtual NAT network (192.168.100.0/24 network) in my libvirt and new guest with two interfaces - one in this network, one as bridged (10.34.1.0/24 network) to the local LAN. The reason for that is I need to have my own virtual network for my DHCP/TFTP/DNS testing and still want to access my guest externally from my LAN. On both networks I have working DHCP, both giving them IP addresses. When I setup NAT port forwarding (e.g. for ssh), I can connect to the eth0 (virtual network), everything is fine. But when I try to access the eth1 via bridged interface, I have no response. I guess I have problem with my routing table - outgoing packets are routed to the virtual NAT network (which has access to the machine I am connecting from - I can ping it). But I am not sure if this setup is correct. I think I need to add something to my routing table. # ifconfig eth0 Link encap:Ethernet HWaddr 52:54:00:B4:A7:5F inet addr:192.168.100.14 Bcast:192.168.100.255 Mask:255.255.255.0 inet6 addr: fe80::5054:ff:feb4:a75f/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:16468 errors:0 dropped:27 overruns:0 frame:0 TX packets:6081 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:22066140 (21.0 MiB) TX bytes:483249 (471.9 KiB) Interrupt:11 Base address:0x2000 eth1 Link encap:Ethernet HWaddr 52:54:00:DE:16:21 inet addr:10.34.1.111 Bcast:10.34.1.255 Mask:255.255.255.0 inet6 addr: fe80::5054:ff:fede:1621/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:34 errors:0 dropped:0 overruns:0 frame:0 TX packets:189 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:4911 (4.7 KiB) TX bytes:9 # route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.100.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 10.34.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 169.254.0.0 0.0.0.0 255.255.0.0 U 1002 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 1003 0 0 eth1 0.0.0.0 192.168.100.1 0.0.0.0 UG 0 0 0 eth0 Network I am trying to connect from is different than network the hypervisor is connected to: 10.36.0.0. But it is accessible from that network. So I tried to add new route rule: route add -net 10.36.0.0 netmask 255.255.0.0 dev eth1 And it is not working. I thought setting correct interface would be sufficient. What is needed to get my packets coming through?

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• Excessive Outbound DNS Traffic

  - by user1318414

  I have a VPS system which I have had for 3 years on one host without issue. Recently, the host started sending an extreme amount of outbound DNS traffic to 31.193.132.138. Due to the way that Linode responded to this, I have recently left Linode and moved to 6sync. The server was completely rebuilt on 6sync with the exception of postfix mail configurations. Currently, the daemons run are as follows: sshd nginx postfix dovecot php5-fpm (localhost only) spampd (localhost only) clamsmtpd (localhost only) Given that the server was 100% rebuilt, I can't find any serious exploits against the above stated daemons, passwords have changed, ssh keys don't even exist on the rebuild yet, etc... it seems extremely unlikely that this is a compromise which is being used to DoS the address. The provided IP is noted online as a known SPAM source. My initial assumption was that it was attempting to use my postfix server as a relay, and the bogus addresses it was providing were domains with that IP registered as their nameservers. I would imagine given my postfix configuration that DNS queries for things such as SPF information would come in with equal or greater amount than the number of attempted spam e-mails sent. Both Linode and 6Sync have said that the outbound traffic is extremely disproportionate. The following is all the information I received from Linode regarding the outbound traffic: 21:28:28.647263 IP 97.107.134.33.32775 > 31.193.132.138.53: 28720 op8+% [b2&3=0x4134] [17267a] [30550q] [28773n] [14673au][|domain] 21:28:28.647264 IP 97.107.134.33 > 31.193.132.138: udp 21:28:28.647264 IP 97.107.134.33.32775 > 31.193.132.138.53: 28720 op8+% [b2&3=0x4134] [17267a] [30550q] [28773n] [14673au][|domain] 21:28:28.647265 IP 97.107.134.33 > 31.193.132.138: udp 21:28:28.647265 IP 97.107.134.33.32775 > 31.193.132.138.53: 28720 op8+% [b2&3=0x4134] [17267a] [30550q] [28773n] [14673au][|domain] 21:28:28.647266 IP 97.107.134.33 > 31.193.132.138: udp 6sync cannot confirm whether or not the recent spike in outbound traffic was to the same IP or over DNS, but I have presumed as such. For now my server is blocking the entire 31.0.0.0/8 subnet to help deter this while I figure it out. Anyone have any idea what is going on?

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• weird SSH connection timed out

  - by bran

  This problem started when I tried to login to my brand spaning new VPS server. I remember that in my first SSH try on the server I actually got prompt for password several times which would mean that there is no port blocking problem from my isp. Since the password did'nt work for me (for some reason). I had a lot of authentication failure. After that attempting to log in to the server just timed out. I did the same at mediatemple (which used to work before with sftp) and put in wrong password and now trying to ssh (or even SFTP) gives me timeout error. So some kind of security feature is preventing me from trying too many times to log in, either from my side or from the server side. Any idea what it could be? TRaceroute and ping works on the ips. I am using a zyxel wimax modem (max-206m1r - if that's relevent) c:\Program Files (x86)\OpenSSH\bin>ssh.exe [email protected] ssh: connect to host 109.169.7.136 port 22: Connection timed out c:\Program Files (x86)\OpenSSH\bin>ssh.exe [email protected] ssh: connect to host 109.169.7.131 port 22: Connection timed out c:\Program Files (x86)\OpenSSH\bin>ssh.exe [email protected] ssh: connect to host 87.117.249.227 port 22: Connection timed out c:\Program Files (x86)\OpenSSH\bin>ssh.exe [email protected] -vv OpenSSH_5.6p1, OpenSSL 0.9.8r 8 Feb 2011 debug1: Reading configuration data /etc/ssh_config debug2: ssh_connect: needpriv 0 debug1: Connecting to 87.117.249.227 [87.117.249.227] port 22. debug1: connect to address 87.117.249.227 port 22: Connection timed out ssh: connect to host 87.117.249.227 port 22: Connection timed out c:\Program Files (x86)\OpenSSH\bin>ssh.exe s122797.gridserver.com Could not create directory '/home/pavs/.ssh'. The authenticity of host 's122797.gridserver.com (205.186.175.110)' can't be est ablished. RSA key fingerprint is 33:24:1e:38:bc:fd:75:02:81:d8:39:42:16:f6:f6:ff. Are you sure you want to continue connecting (yes/no)? yes Failed to add the host to the list of known hosts (/home/pavs/.ssh/known_hosts). Password: Password: Password: [email protected]'s password: Permission denied, please try again. [email protected]'s password: Permission denied, please try again. [email protected]'s password: Received disconnect from 205.186.175.110: 2: Too many authentication failures fo r pavs c:\Program Files (x86)\OpenSSH\bin>ssh.exe s122797.gridserver.com ssh: connect to host s122797.gridserver.com port 22: Connection timed out c:\Program Files (x86)\OpenSSH\bin>ssh.exe s122797.gridserver.com ssh: connect to host s122797.gridserver.com port 22: Connection timed out

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• Firefox: non-Vimperator way to do mouseless browsing?

  - by Peter Mortensen

  Is it possible to do efficient browsing with Firefox using only the keyboard (like in Opera)? By efficient I mean something faster than using TAB - this takes far too long. The arrow keys should be for navigation (in Opera it is Shift + arrow key). It can done with the Vimperator add-on, but isn't there a simpler way? Update 2: the closest to Opera's way is to enable caret navigation (F7 toggles this mode). It doesn't jump between links so it is a little bit slower, but the normal navigation (arrow keys, page up, page down, etc.) works and the focus/caret/cursor follows (in contrast to a text editor for page up/down). And text can be selected and copied like in a text editor. The biggest drawback is that in practice it is necessary to switch in and out of caret mode. And there is no indication of which mode is currently active. Update 1: a work-around (proposed by several but is not really what I am looking for) can be used if 3 settings are changed (to make it practical). After these changes the first few letters of a link text can be typed and that link will selected so pressing Enter will open it. Using the work-around the screen will jump around if it is a long page as it does not restrict itself to the current visible page, but it is usable. First settings change: menu Tools/Options/Advanced/tab General/Accessibility/Search for text when I start typing Turn this option on. Second settings change: set option to only go to links; in address bar enter: about:config followed by Enter. Then: press "I'll be careful, I promise", find the line accessibility.typeaheadfind.linksonly, select it and change the value to True by either hitting Enter or Shift+F10/Toggle (accessibility.typeaheadfind.linksonly is on line 11 when I tried). Third settings change: turn off case-sensitivity. Set accessibility.typeaheadfind.casesensitive to 0 (same procedure as for accessibility.typeaheadfind.linksonly, see above. When Enter is pressed a dialog box will appear with the current value. Type 0 and press Enter). To use: type some part of the link. If there are several possibilities use Ctrl+G (or F3) to jump between them. Use Ctrl+Enter to open in a new tab. Platform: Firefox 3.0.6, Windows XP 64 bit SP2.

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• OpenVPN multiple servers on the same subnet, high availability

  - by andre

  Hey everyone. Let me start by saying that my Linux experience isn't super awesome but I can usually find my way around things easily. Over at work we have an OpenVPN setup that's been due for some improvement for a while now. The main server (tap mode) runs in our office, behind a rather slow DSL connection. The main problem is that, since I'm usually out of the office, every time I want to access something on the virtual network I have to go through that server to get anywhere else. We have two servers up on 100 Mbit connections that we use for development and production purposes, about 3 more servers in the office (one of them behind a different T1 line for VOIP) and about two dozen clients who use the network on a daily basis from various locations. We've had situations where network routing (outside of our control) would not allow people to reach our main OpenVPN server whilst the other locations were connectable. Also any time someone outside the office wants to fetch something from any of the servers (say, a 500 MB code repository), a whopping 20 KB/s download speed is just unacceptable these days (did I mention slow DSL? ok). We had to implement traffic shaping on this server since maxing out this connection was fairly trivial. I had the thought of running two (or more) OpenVPN servers in the network. These would have to have the same subnet though, as our application relies on virtual network's IP addresses for some of its core functionality. The clients would also preferably retain the same IP addresses but that's not vital. For simplicity, lets call the current server office and the second server I'm setting up, cloud. Call the server on the T1 phone. This proved to be rather complex because as soon as I connect to cloud, I cannot see office. Any routes to a server that would go through office also do not work while I'm connected to cloud (no ping, nothing) and vice-versa. There's no rules for iptables that would be blocking the traffic either. Recently I came across this article on linuxjournal but the solution they provide seems to only cover the use of two servers and somewhat outdated (can't even find much documentation, their wiki is offline). They also state that adding more servers would be a complex task. Ideally I would like to keep the existing server office running the virtual network and also run the OpenVPN daemon on the cloud and phone servers (100 Mbit and very reliable connection, respectively) so that we're on safe ground in case of a hardware failure, DSL failure, etc. So, in essence, I'm looking for a highly available OpenVPN solution (fix, patch, hack, tweak, whatever you want to call it) that will accept connections on multiple hosts (2 or more) whilst keeping the same IP address subnet regardless of the server to which you connect to. Thanks for reading and sorry for the long post, I hope it gets the point across :P

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• Nginx Proxying to Multiple IP Addresses for CMS' Website Preview

  - by Matthew Borgman

  First-time poster, so bear with me. I'm relatively new to Nginx, but have managed to figure out what I've needed... until now. Nginx v1.0.15 is proxying to PHP-FPM v.5.3.10, which is listening at http://127.0.0.1:9000. [Knock on wood] everything has been running smoothly in terms of hosting our CMS and many websites. Now, we've developed our CMS and configured Nginx such that each supported website has a preview URL (e.g. http://[WebsiteID].ourcms.com/) where the site can be, you guessed it, previewed in those situations where DNS doesn't yet resolve to our server, etc. Specifically, we use Nginx's Map module (http://wiki.nginx.org/HttpMapModule) and a regular expression in the server_name of the CMS' server{ } block to 1) lookup a website's primary domain name from its preview URL and then 2) forward the request to the "matched" primary domain. The corresponding Nginx configuration: map $host $h { 123.ourcms.com www.example1.com; 456.ourcms.com www.example2.com; 789.ourcms.com www.example3.com; } and server { listen [OurCMSIPAddress]:80; listen [OurCMSIPAddress]:443 ssl; root /var/www/ourcms.com; server_name ~^(.*)\.ourcms\.com$; ssl_certificate /etc/nginx/conf.d/ourcms.com.chained.crt; ssl_certificate_key /etc/nginx/conf.d/ourcms.com.key; location / { proxy_pass http://127.0.0.1/; proxy_set_header Host $h; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } } (Note: I do realize that the regex in the server_name should be "tighter" for security reasons and match only the format of the website ID (i.e. a UUID in our case).) This configuration works for 99% of our sites... except those that have a dedicated IP address for an installed SSL certificate. A "502 Bad Gateway" is returned for these and I'm unsure as to why. This is how I think the current configuration works for any requests that match the regex (e.g. http://123.ourcms.com/): Nginx looks up the website's primary domain from the mapping, and as a result of the proxy_pass http://127.0.0.1 directive, passes the request back to Nginx itself, which since the proxied request has a hostname corresponding to the website's primary domain name, via the proxy_set_header Host $h directive, Nginx handles the request as if it was as direct request for that hostname. Please correct me if I'm wrong in this understanding. Should I be proxying to those website's dedicated IP addresses? I tried this, but it didn't seem to work? Is there a setting in the Proxy module that I'm missing? Thanks for the help. MB

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• How to Configure Source NAT (Private IP => Public IP Outbound)

  - by DavidScherer

  I'm running VMWare ESXi Free and have Zentyal SBS 3.2 running as a Gateway. I have 5 Public IPS (CIDR/29, let's call them 69.1.1.1 - 69.1.1.5) and currently Zentyal is bound to 69.1.1.1 as the Gateway, with the other 4 Public IPs set as Virtual Interfaces in Zentyal (wan2-wan5) I have machines sitting on the Private Network (10.34.251.x) that, when going Outbound (to Google for instance) should be seen by the Internet as an IP other than the Gateway (69.1.1.1), this is because our machines need to be able to communicate with 3rd party APIs that expect these requests to come from a specific IP. From what I could find, SNAT (Source NAT) in Zentyal is used to achieve this, but I'm not sure how to configure it and cannot find a specific piece of Documentation for it at Zentyal. I've tried setting this up a couple different ways, with no results and at this point I have no idea if I'm going about this completely wrong, or my lack of experience with networking and the associated terminology is preventing me from placing the correct values in the correct fields. I get the following form to set up "SNAT" rules in Zentyal: Perhaps someone can offer some guidance and definitions for the fields above? SNAT Address Is this the Public IP I want to masquerade? Outgoing Interface Should this by my External NIC (one connected to Public 'Net), or is it the "Private" interface? It sounds as though this should be the External interface as I want the traffic from the internal network sent Out over this Interface (using a different IP than normal, anyway) Source Is the the Source on the internal network (one of the private IPs?), a public IP I want to masquerade as, or something else entirely? Destination Is this a place on the Internet (eg, "Only do this for the Site Google.com"/IP) or am I allowing myself to become confused again? Service I'm assuming this allows me to restrict which services this rule will apply to, but is it for a service on the internal network or a service being accessed on the external network? If I can offer any further details or information to make what I'm trying to do more clear, I will happily do so. Honestly any kind of help here would be very appreciated. I'm not a NetOps or anything even close, I spend most of my day writing code and my entire "team" at this company consists of "me, myself, and I" so while I try to broaden my KB at every possible opportunity, I can only learn so much, so fast and I feel like with networking especially there's just so much, coupled with a learning curve for each solution that likes to (from my limited perspective) use slightly different terminology that what I'm used to (and I don't exactly have the necessary experience to cross reference this stuff with the stuff I already know in context).

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• Linksys WiFi usb dongle and linux woes

  - by MrStatic

  I have a Linksys WUSB54GC usb dongle and I have exhausted every thing I know about making this thing work in linux. I am using Fedora 13. Since it is not ready I can not view any networks. Any ideas would be great. tail of the system log Jun 2 20:14:35 localhost kernel: usb 1-7: new high speed USB device using ehci_hcd and address 8 Jun 2 20:14:35 localhost kernel: usb 1-7: New USB device found, idVendor=1737, idProduct=0077 Jun 2 20:14:35 localhost kernel: usb 1-7: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Jun 2 20:14:35 localhost kernel: usb 1-7: Product: 802.11 g WLAN Jun 2 20:14:35 localhost kernel: usb 1-7: Manufacturer: Ralink Jun 2 20:14:35 localhost kernel: usb 1-7: SerialNumber: 1.0 Jun 2 20:14:35 localhost kernel: Registered led device: rt2800usb-phy3::radio Jun 2 20:14:35 localhost kernel: Registered led device: rt2800usb-phy3::assoc Jun 2 20:14:35 localhost kernel: Registered led device: rt2800usb-phy3::quality Jun 2 20:14:35 localhost NetworkManager[1367]: <info> found WiFi radio killswitch rfkill3 (at /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-7/1-7:1.0/ieee80211/phy3/rfkill3) (driver <unknown>) Jun 2 20:14:35 localhost kernel: rt2800usb 1-7:1.0: firmware: requesting rt2870.bin Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): driver supports SSID scans (scan_capa 0x01). Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): new 802.11 WiFi device (driver: 'rt2800usb' ifindex: 6) Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): exported as /org/freedesktop/NetworkManager/Devices/4 Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): now managed Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): device state change: 1 -> 2 (reason 2) Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): bringing up device. Jun 2 20:14:35 localhost kernel: ADDRCONF(NETDEV_UP): wlan0: link is not ready Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): preparing device. Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): deactivating device (reason: 2). Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): supplicant interface state: starting -> ready Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): device state change: 2 -> 3 (reason 42) [root@localhost log]# iwconfig lo no wireless extensions. eth0 no wireless extensions. wlan0 IEEE 802.11bg Mode:Managed Access Point: Not-Associated Tx-Power=8 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:on

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• SSH stops at "using username" with IPTables in effect

  - by Rautamiekka

  We used UFW but couldn't make the Source Dedicated ports open, which was weird, so we purged UFW and switched to IPTables, using Webmin to configure. If the inbound chain is on DENY and SSH port open [judged from Webmin], PuTTY will say using username "root" and stops at that instead of asking for public key pw. Inbound chain on ACCEPT the pw is asked. This problem didn't happen with UFW. Picture of IPTables configuration in Webmin: http://s284544448.onlinehome.us/public/PlusLINE%20Dedicated%20Server,%20Webmin,%20IPTables,%200.jpgThe address is to the previous rautamiekka.org. iptables-save when on INPUT DENY: # Generated by iptables-save v1.4.8 on Wed Apr 11 16:09:20 2012 *mangle :PREROUTING ACCEPT [1430:156843] :INPUT ACCEPT [1430:156843] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [1415:781598] :POSTROUTING ACCEPT [1415:781598] COMMIT # Completed on Wed Apr 11 16:09:20 2012 # Generated by iptables-save v1.4.8 on Wed Apr 11 16:09:20 2012 *nat :PREROUTING ACCEPT [2:104] :POSTROUTING ACCEPT [0:0] :OUTPUT ACCEPT [0:0] COMMIT # Completed on Wed Apr 11 16:09:20 2012 # Generated by iptables-save v1.4.8 on Wed Apr 11 16:09:20 2012 *filter :INPUT DROP [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [1247:708906] -A INPUT -i lo -m comment --comment "Machine-within traffic - always allowed" -j ACCEPT -A INPUT -p tcp -m comment --comment "Services - TCP" -m tcp -m multiport --dports 22,80,443,10000,20,21 -m state --state NEW,ESTABLISHED -j ACCEPT -A INPUT -p tcp -m comment --comment "Minecraft - TCP" -m tcp --dport 25565 -j ACCEPT -A INPUT -p udp -m comment --comment "Minecraft - UDP" -m udp --dport 25565 -j ACCEPT -A INPUT -p tcp -m comment --comment "Source Dedicated - TCP" -m tcp --dport 27015 -j ACCEPT -A INPUT -p udp -m comment --comment "Source Dedicated - UDP" -m udp -m multiport --dports 4380,27000:27030 -j ACCEPT -A INPUT -p udp -m comment --comment "TS3 - UDP - main port" -m udp --dport 9987 -j ACCEPT -A INPUT -p tcp -m comment --comment "TS3 - TCP - ServerQuery" -m tcp --dport 10011 -j ACCEPT -A OUTPUT -o lo -m comment --comment "Machine-within traffic - always allowed" -j ACCEPT COMMIT # Completed on Wed Apr 11 16:09:20 2012 iptables --list when on INPUT DENY: Chain INPUT (policy DROP) target prot opt source destination ACCEPT all -- anywhere anywhere /* Machine-within traffic - always allowed */ ACCEPT tcp -- anywhere anywhere /* Services - TCP */ tcp multiport dports ssh,www,https,webmin,ftp-data,ftp state NEW,ESTABLISHED ACCEPT tcp -- anywhere anywhere /* Minecraft - TCP */ tcp dpt:25565 ACCEPT udp -- anywhere anywhere /* Minecraft - UDP */ udp dpt:25565 ACCEPT tcp -- anywhere anywhere /* Source Dedicated - TCP */ tcp dpt:27015 ACCEPT udp -- anywhere anywhere /* Source Dedicated - UDP */ udp multiport dports 4380,27000:27030 ACCEPT udp -- anywhere anywhere /* TS3 - UDP - main port */ udp dpt:9987 ACCEPT tcp -- anywhere anywhere /* TS3 - TCP - ServerQuery */ tcp dpt:10011 Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination ACCEPT all -- anywhere anywhere /* Machine-within traffic - always allowed */ The UFW rules prior to purging on INPUT DENY: 127.0.0.1 ALLOW IN 127.0.0.1 3306 DENY IN Anywhere 20,21/tcp ALLOW IN Anywhere 22/tcp (OpenSSH) ALLOW IN Anywhere 80/tcp ALLOW IN Anywhere 443/tcp ALLOW IN Anywhere 989 ALLOW IN Anywhere 990 ALLOW IN Anywhere 8075/tcp ALLOW IN Anywhere 9987/udp ALLOW IN Anywhere 10000/tcp ALLOW IN Anywhere 10011/tcp ALLOW IN Anywhere 25565/tcp ALLOW IN Anywhere 27000:27030/tcp ALLOW IN Anywhere 4380/udp ALLOW IN Anywhere 27014:27050/tcp ALLOW IN Anywhere 30033/tcp ALLOW IN Anywhere

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• Switch flooding when bonding interfaces in Linux

  - by John Philips

  +--------+ | Host A | +----+---+ | eth0 (AA:AA:AA:AA:AA:AA) | | +----+-----+ | Switch 1 | (layer2/3) +----+-----+ | +----+-----+ | Switch 2 | +----+-----+ | +----------+----------+ +-------------------------+ Switch 3 +-------------------------+ | +----+-----------+----+ | | | | | | | | | | eth0 (B0:B0:B0:B0:B0:B0) | | eth4 (B4:B4:B4:B4:B4:B4) | | +----+-----------+----+ | | | Host B | | | +----+-----------+----+ | | eth1 (B1:B1:B1:B1:B1:B1) | | eth5 (B5:B5:B5:B5:B5:B5) | | | | | | | | | +------------------------------+ +------------------------------+ Topology overview Host A has a single NIC. Host B has four NICs which are bonded using the balance-alb mode. Both hosts run RHEL 6.0, and both are on the same IPv4 subnet. Traffic analysis Host A is sending data to Host B using some SQL database application. Traffic from Host A to Host B: The source int/MAC is eth0/AA:AA:AA:AA:AA:AA, the destination int/MAC is eth5/B5:B5:B5:B5:B5:B5. Traffic from Host B to Host A: The source int/MAC is eth0/B0:B0:B0:B0:B0:B0, the destination int/MAC is eth0/AA:AA:AA:AA:AA:AA. Once the TCP connection has been established, Host B sends no further frames out eth5. The MAC address of eth5 expires from the bridge tables of both Switch 1 & Switch 2. Switch 1 continues to receive frames from Host A which are destined for B5:B5:B5:B5:B5:B5. Because Switch 1 and Switch 2 no longer have bridge table entries for B5:B5:B5:B5:B5:B5, they flood the frames out all ports on the same VLAN (except for the one it came in on, of course). Reproduce If you ping Host B from a workstation which is connected to either Switch 1 or 2, B5:B5:B5:B5:B5:B5 re-enters the bridge tables and the flooding stops. After five minutes (the default bridge table timeout), flooding resumes. Question It is clear that on Host B, frames arrive on eth5 and exit out eth0. This seems ok as that's what the Linux bonding algorithm is designed to do - balance incoming and outgoing traffic. But since the switch stops receiving frames with the source MAC of eth5, it gets timed out of the bridge table, resulting in flooding. Is this normal? Why aren't any more frames originating from eth5? Is it because there is simply no other traffic going on (the only connection is a single large data transfer from Host A)? I've researched this for a long time and haven't found an answer. Documentation states that no switch changes are necessary when using mode 6 of the Linux interface bonding (balance-alb). Is this behavior occurring because Host B doesn't send any further packets out of eth5, whereas in normal circumstances it's expected that it would? One solution is to setup a cron job which pings Host B to keep the bridge table entries from timing out, but that seems like a dirty hack.

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• Change Logon DPI setting in Windows 8.1

  - by jmc302005

  I love how M$ keeps making decisions for me about how I want my desktop to look. Now they have added per-user dpi settings. The problem this has created is that there is no adjustable dpi setting for the Lock/Logon screen. Let me explain. you can change the dpi setting to be the same across all displays and this does affect the icons and font on the lock/logon screen. However it does not affect any app/program that can run on the lock/logon screen. Ex. I use a 44" flat screen tv for my monitor on my desktop. Big enough for me to sit in my recliner and use my comp. But I don't have a wireless keyboard. And it sucks having the wire from the keyboard running across the floor. Plus I really don't want to keep a keyboard next to me. So I use the on screen keyboard for logging in and quick typing (search, web address, etc.) So the problem is that with the new dpi setup my on screen keyboard takes up nearly half the screen. Does M$ think we are all blind? Oh no I remember they think desktops should look like tablets and phones. I tried looking through the registry to see if I could find a setting for it. In the key HKEY_USERS.DEFAULT\Control Panel\Desktop there is a string value named "LogicalDPIOverride" with a value of -1. I have a feeling this is where I can fix the issue. I tried changing the value to 0 and to 1 with no change in the result. Instead I noticed that after logging out and back in the -1 value was back in the registry. So now M$ has also added a way for us to not be able to change a setting in the registry. They are making it harder and harder for us power users to be able to do anything with the settings in windows. Soon we will all have the same exact Windows with absolutely no customization. ok sorry for the quick rant. The real question here is. How can I change this defualt dpi crap? Can I use the LogPixels string that worked for dpi in Windows 7? Here are 2 Screen shots 1 of the Lock Screen and 1 of the Logon Screen http://i.imgur.com/6RM5ufE.jpg http://i.imgur.com/cnY5bmm.jpg Please any help will be appreciated.

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• Sharing folder in a Virtual Private Windows Server 2008 R2 ?

  - by Triztian

  See Edit 2: Hello all, seems my involvement with computers has grown and I've found my self in the need to access a shared folder on a server. I've read some documentation and managed to set up the folder as a share, for this I created a local group and for now just one local user that has access to the share, the folder is in the public user folder and it's permissions should be (and I believe they are) read/write. The problem is that I can't connect from a remote machine I mean I don't know how the way it should be accessed, the server has a public IP and we use it also as a host to our website I don't know if that affects it though, the folder will be used as the "keeper" for the QuickBooks company files and has the database server manager installed. I've tried setting up a VPN Connection to the but no success. The server has a domain name a "http://www.example.com" that redirects to our website, I am unsure if it could be accessed that way, also the share has a location displayed when I right-click properties Heres what I've tried Setting up a VPN Connection (Windows Vista and 7) Got to the point where I got asked for credential and entered the user I created (which is not an admin) but I got a "Connection fail error 800" I suppose this is because in the domain field I entered the servers workgroup. right-click add network connection (Windows 7) Went through the wizard until I reached the point of entering the location, tried many things, the name in the share's properties(\\SOMETHING\Share), the http://www.example.com , the IP address I'm quite unfamiliar with this, so I have my guesses: Since the group and user are local they do not have access to the folder. The firewall in the server is blocking my connection. Anyways, any help and guidence is truly appreciated. EDIT 1: As @tony roth pointed out it may be a security fail, an I commented it out to management and said that that is not an issue, so please bare with me. EDIT 2: I've found out that the real question could be streamlined to "Sharing folder in a Virtual Private Server?", as thats what we have, a virtual private windows server 2008 R2, and I would like to know how to make it show like a normal folder in the client computer. Thanks again for all of your support.

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• Some questions regarding Hostname

  - by user481913

  I just bought a new VPS hosting plan and i have a few questions. Hope someone here can clear the doubts for me. 1) Is it necessary to have a real domain for a vps hostname? I suppose i can just use a non-real domain like anydomain.com and something like 'server' for the computer name. Therefore i'll end up with something like server.anydomain.com as the vps's hostname. I want to do this for the sake of putting in a hostname to configure the vps to get it going . So, since this non-real domain name does not need to be publicly accessible i don't need to register or own it and instead access the server by the ip address. Is that correct? But i suppose that this also depends upon if my web host allows that? 2)I would also like to run some real sites with real domain names on this vps, so can i just configure the zone file on the primary nameserver and make entries for these domains and point an A record at the Vps's IP to make them publicly accessible over the internet? For example for my 1st domain i could make an entry like this: $TTL 86400 mydomain1.com. IN SOA ns1.mywebhost.com. \ admin.mydomain1.com. ( 2004011522 ; Serial no., based on date 21600 ; Refresh after 6 hours 3600 ; Retry after 1 hour 604800 ; Expire after 7 days 3600 ; Minimum TTL of 1 hour ) server IN A 200._._._ ns1.mywebhost.com. IN A 216._._._ ns2.mywebhost.com. IN A 205._._._ @ IN NS ns1.mywebhost.com. @ IN NS ns2.mywebhost.com. @ IN MX 10 server www IN CNAME server server IN CNAME @ (so this particular line tells the nameserver to point the url mydomain1.com to server.anydomain.com at the particular ip addresss in the A record.... is that right?) Similarly for my 2nd domain i could have a similar entry : $TTL 86400 mydomain2.com. IN SOA ns1.mywebhost.com. \ admin.mydomain2.com. (..... ............................so on........ ......................................... ......................................... ......................................... ......................................... ......................................... Is that correct? 3) Suppose for my vps hostname, i ignorantly chose a domain that someone else alreadys owns , however i think that it won't affect the public accessibility of the real domain or website since only the real owner of the domain has the rights to provide for the nameservers addresses in the TLD registeries through his Domian Registerar? Is that correct? 4)Can i change my vps's hostname later? Would this create any complications?

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• file corruption on read/write 2.6.32-22-server (happens across many kernels)

  - by Jonathan

  Hi Guys, I'm having an issue where after the server has been up for a period of time (~week/few days) the server will start reading corrupt data. For instance when I run a sha1sum of a file after a fresh boot it remains the same. However after a while I will start to get segfaults and from then on whenever I read this file I get a different sha1sum. I've checked S.M.A.R.T with long tests and I've run an extended memtest86+(12 passes) My lspci is as follows: 00:00.0 Host bridge: Advanced Micro Devices [AMD] RS780 Host Bridge 00:01.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (int gfx) 00:06.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (PCIE port 2) 00:07.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (PCIE port 3) 00:11.0 SATA controller: ATI Technologies Inc SB700/SB800 SATA Controller [AHCI mode] 00:12.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller 00:12.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller 00:12.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller 00:13.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller 00:13.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller 00:13.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller 00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 3c) 00:14.1 IDE interface: ATI Technologies Inc SB700/SB800 IDE Controller 00:14.3 ISA bridge: ATI Technologies Inc SB700/SB800 LPC host controller 00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge 00:14.5 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI2 Controller 00:18.0 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] HyperTransport Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] Miscellaneous Control 00:18.4 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] Link Control 01:05.0 VGA compatible controller: ATI Technologies Inc Radeon HD 3300 Graphics 01:05.1 Audio device: ATI Technologies Inc RS780 Azalia controller 02:00.0 Ethernet controller: Atheros Communications Atheros AR8121/AR8113/AR8114 PCI-E Ethernet Controller (rev b0) 03:00.0 FireWire (IEEE 1394): VIA Technologies, Inc. Device 3403 I could really use some help on this, do you have any idea what could cause this? It's really frustrating me as it seems to trigger entirely randomly and will not go away until I reboot. I'm also use KVM for virtualization as well as MD for software RAID on this server and the processor is a Phenom II X4 965. I don't believe it's the software raid however as this affects files also hosted on non-raid partitions so I don't know.

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• Ubuntu and Postfix Configuration Issues

  - by Obi Hill

  I recently installed postfix on Ubuntu Natty. I'm having a problem with the configuration. Firstly here is my postfix configuration file: # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings delay_warning_time = 4h readme_directory = no # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. mydomain = $myorigin myhostname = mail.nairanode.com alias_maps = hash:/etc/postfix/aliases alias_database = hash:/etc/postfix/aliases # this specifies where the virtual mailbox folders will be located virtual_mailbox_base = /var/spool/mail/virtual # this specifies where the virtual mailbox folders will be located virtual_mailbox_base = /var/spool/mail/virtual # this is for the mailbox location for each user virtual_mailbox_maps = mysql:/etc/postfix/mysql_mailbox.cf # and this is for aliases virtual_alias_maps = mysql:/etc/postfix/mysql_alias.cf # and this is for domain lookups virtual_mailbox_domains = mysql:/etc/postfix/mysql_domains.cf # this is how to connect to the domains (all virtual, but the option is there) # not used yet # transport_maps = mysql:/etc/postfix/mysql_transport.cf virtual_uid_maps = static:5000 virtual_gid_maps = static:5000 mydestination = $myorigin, $myhostname, localhost.localdomain, , localhost relayhost = mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all #mynetworks_style = host # ADDITIONAL unknown_local_recipient_reject_code = 550 maximal_queue_lifetime = 7d minimal_backoff_time = 1000s maximal_backoff_time = 8000s smtp_helo_timeout = 60s smtpd_recipient_limit = 16 smtpd_soft_error_limit = 3 smtpd_hard_error_limit = 12 # Requirements for the HELO statement smtpd_helo_restrictions = permit_mynetworks, warn_if_reject reject_non_fqdn_hostname, reject_invalid_hostname, permit # Requirements for the sender details smtpd_sender_restrictions = permit_mynetworks, warn_if_reject reject_non_fqdn_sender, reject_unknown_sender_domain, reject_unauth_$ # Requirements for the connecting server smtpd_client_restrictions = reject_rbl_client sbl.spamhaus.org, reject_rbl_client blackholes.easynet.nl, reject_rbl_client dnsbl.n$ # Requirement for the recipient address smtpd_recipient_restrictions = reject_unauth_pipelining, permit_mynetworks, reject_non_fqdn_recipient, reject_unknown_recipient_do$ # require proper helo at connections smtpd_helo_required = yes # waste spammers time before rejecting them smtpd_delay_reject = yes disable_vrfy_command = yes Here is also my /etc/postfix/aliases: # See man 5 aliases for format postmaster: root Here is also my /etc/mailname: nairanode.com I've also updated my hostname to nairanode.com However, when I run postalias /etc/postfix/aliases I get the following : postalias: warning: valid_hostname: invalid character 47(decimal): /etc/mailname postalias: fatal: file /etc/postfix/main.cf: parameter mydomain: bad parameter value: /etc/mailname Is there something I'm doing wrong?! I noticed that when I replace myorigin = /etc/mailname with myorigin = nairanode.com in my postfix config, I don't see any errors anymore after calling postalias. Is this a bug or something?!

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• Error sending email to alias with Postfix

  - by Burning the Codeigniter

  I'm on Ubuntu 11.04 64bit. I'm trying to set up Postfix on my VPS, which has been configured but when I send an email to an alias e.g. [email protected] it will send it to [email protected]. Now when I sent the email from my GMail account, I got this returned: Delivery to the following recipient failed permanently: [email protected] Technical details of permanent failure: Google tried to deliver your message, but it was rejected by the recipient domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server returned was: 550 550 #5.1.0 Address rejected [email protected] (state 14). ----- Original message ----- DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=R1WtjVRWywfkWCR2g4QKbSjAfUaU9DAAMKbg9UAWqvs=; b=FiSfdhEaV4pEq/76ENlH4tvOgm35Ow3ulRg06kDYrIQTaDf3eOEgfSEgH25PjZuAj/ 7Hg1CL++o6Rt/tl80ZiR2AWekhA0zIn2JkqE7KssMG7WbBmMmbf8V9KDo2jOw+mZv+C/ KDKsQ65AudBZ/NYLDDpTT7MkKf8DzqeGCKj9MAct6sHDoC0wCciXYxNfTf+MKxrZvRHQ oICTkH5LOugKW9wEjPF2AoO8X0qgYmTLYeSUtXxu46VeNKRBGmdRkkpPOoJlQN9ank7i SW6kU6M9bk2bYOgKwV/YPsaantmYlu1XdmYx+kWeJkNJAyYOfXfZZ8WUJhbbFFD9bZCi m/hw== MIME-Version: 1.0 Received: by 10.101.3.5 with SMTP id f5mr783908ani.86.1334247306547; Thu, 12 Apr 2012 09:15:06 -0700 (PDT) Received: by 10.236.73.136 with HTTP; Thu, 12 Apr 2012 09:15:06 -0700 (PDT) Date: Thu, 12 Apr 2012 17:15:06 +0100 Message-ID: <CAN+9S2aB=xjiDxVZx3qYZoBMFD4XuadUyR_3OYWaxw1ecrZmOQ@mail.gmail.com> Subject: Test Email From: My Name <[email protected]> To: [email protected] Content-Type: multipart/alternative; boundary=001636c597eabfd21504bd7da8fd Now that I don't understand why it isn't working, my aliases are set up correctly - I see no error messages being produced in /var/log/mail.log or any other mail logs, which makes it harder for me to debug. This is my postfix configuration (postconf -n): alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases append_dot_mydomain = no biff = no config_directory = /etc/postfix inet_interfaces = all mailbox_command = procmail -a "$EXTENSION" mailbox_size_limit = 0 mydestination = $mydomain, $myhostname, localhost, localhost.localdomain, localhost mydomain = domain.com myhostname = localhost mynetworks = 192.168.1.0/24 127.0.0.0/8 readme_directory = no recipient_delimiter = + smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtpd_use_tls = yes Does anyone know how to solve this specific issue?

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• What Are All the Variables Necessary to Create Blackbox Logs for Nginx?

  - by Alan Gutierrez

  There's an article out there, Profiling LAMP Applications with Apache's Blackbox Logs, that describes how to create a log that records a lot of detailed information missing in the common and combined log formats. This information is supposed to help you resolve performance issues. As the author notes "While the common log-file format (and the combined format) are great for hit tracking, they aren't suitable for getting hardcore performance data." The article describes a "blackbox" log format, like a blackbox flight recorder on an aircraft, that gathers information used to profile server performance, missing from the hit tracking log formats: Keep alive status, remote port, child processes, bytes sent, etc. LogFormat "%a/%S %X %t \"%r\" %s/%>s %{pid}P/%{tid}P %T/%D %I/%O/%B" blackbox I'm trying to recreate as much of the format for Nginx, and would like help filling in the blanks. Here's what Nginx blackbox format would look like, the unmapped Apache directives have question marks after their names. access_log blackbox '$remote_addr/$remote_port X? [$time_local] "$request"' 's?/$status $pid/0 T?/D? I?/O?/B?' Here's a table of the variables I've been able to map from the Nginx documentation. %a = $remote_addr - The IP address of the remote client. %S = $remote_port - The port of the remote client. %X = ? - Keep alive status. %t = $time_local - The start time of the request. %r = $request - The first line of request containing method verb, path and protocol. %s = ? - Status before any redirections. %>s = $status - Status after any redirections. %{pid}P = $pid - The process id. %{tid}P = N/A - The thread id, which is non-applicable to Nignx. %T = ? - The time in seconds to handle the request. %D = ? - The time in milliseconds to handle the request. %I = ? - The count of bytes received including headers. %O = ? - The count of bytes sent including headers. %B = ? - The count of bytes sent excluding headers, but with a 0 for none instead of '-'. Looking for help filling in the missing variables, or confirmation that the missing variables are in fact, unavailable in Nginx.

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• GMail detecting mail as spam

  - by Petru Toader

  I've been trying for a long time to get our company's mail server send mail that will get accepted by the GMail spam filter. I have managed making it work for Yahoo Mail and Hotmail, sadly GMail is still marking our mails as spam. I have configured DKIM, SPF, DMARC and verified our mail server IP address against blacklists. I also have pasted here the headers GMail gets when we send a mail. Delivered-To: [email protected] Received: by 10.42.215.6 with SMTP id hc6csp107427icb; Wed, 20 Aug 2014 07:34:26 -0700 (PDT) X-Received: by 10.194.100.34 with SMTP id ev2mr59101019wjb.76.1408545265402; Wed, 20 Aug 2014 07:34:25 -0700 (PDT) Return-Path: <[email protected]> Received: from mail.phyramid.com (mail.phyramid.com. [178.157.82.23]) by mx.google.com with ESMTPS id dj10si4827754wib.79.2014.08.20.07.34.24 for <[email protected]> (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 20 Aug 2014 07:34:25 -0700 (PDT) Received-SPF: pass (google.com: domain of [email protected] designates 178.157.82.23 as permitted sender) client-ip=178.157.82.23; Authentication-Results: mx.google.com; spf=pass (google.com: domain of [email protected] designates 178.157.82.23 as permitted sender) [email protected]; dkim=pass [email protected] Received: from localhost (localhost [127.0.0.1]) by mail.phyramid.com (Postfix) with ESMTP id ED2BB2017AC for <[email protected]>; Wed, 20 Aug 2014 17:33:23 +0300 (EEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=phyramid.com; h= content-type:content-type:mime-version:x-mailer:subject:subject :message-id:to:from:from:date:date; s=dkim; t=1408545197; x= 1409409197; bh=e04RtoyF7G39lfCvA9LLhTz4nF64siZtN5IYmC18Xsc=; b=o +6mO8Uz4Uf1G4U2q6tKUiEy2N2n/5R2VtPPwIvBE5xzK/hEd2sDGMxVzQVgIDCsK Q0Xh+auPaQpxldQ+AEcL2XSZMrk/g0mJONjkpI19I5AwGIJCR1SVvxdecohTn9iR bCHzrGi2wAicfDBzOH6lUBNfh2thri79aubdCYc97U= X-Amavis-Modified: Mail body modified (using disclaimer) - mail.phyramid.com X-Virus-Scanned: Debian amavisd-new at mail.phyramid.com Received: from mail.phyramid.com ([127.0.0.1]) by localhost (mail.phyramid.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 3JcgXZAXeFtX for <[email protected]>; Wed, 20 Aug 2014 17:33:17 +0300 (EEST) Received: from whiterock.local (unknown [109.98.21.30]) by mail.phyramid.com (Postfix) with ESMTPSA id 05CAE200280 for <[email protected]>; Wed, 20 Aug 2014 17:33:15 +0300 (EEST) Date: Wed, 20 Aug 2014 17:34:15 +0300 From: Company Mail <[email protected]> To: [email protected] Message-ID: <[email protected]> Subject: hey there! X-Mailer: Airmail (247) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline How was your summer? ---- Thanks a lot!

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