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• Windows Server 2008: Limit UDP/TCP packets per IP or ban

  - by WBAR

  How I can limit UDP/TCP packets per IP send to my host (or better PORT) per second or minute ? Would be nice to ban that IP for 12/24 hours or even for ever. I got Windows Server 2008 and I'm very poor in Windows administration but quite good in Linux. EDIT: By basic problem is that They sending a lot of rubbish UPD and TCP packets.. TCP packets without SYNCH, fragmented UDP packets so my servers stop responding.. So I need to cut off users (IPs) sending more than X packets per second. I need solution witch provides me, somehow, configurable: X packets of certain type (UDP, TCP or both - lets say parameter named Z ) are allowed to be received by IP on Y port, otherwise this packet should be DROPPED. My virtual hosts are hosted by VirtualBox and I'm able to forward all incoming packets certain type and certain port to the specific Virtual Host, but I need to DROP them before my VirtualBox receive them.

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• Access node.js local server though mobile via same shared wifi

  - by laggingreflex

  EDIT: I was stuck in this situation before but then it was Apache-related But this time I'm using NodeJS, so the old answer doesn't help. I'm running apache a NodeJS webserver (on port 80) on Windows 7. I want to access the webserver through my mobile which shares the wifi router with my pc locally. http://localhost works from PC. But I can't access http://192.168.1.4 from either my phone or even my computer. ipconfig /all on my computer lists my ip address as 192.168.1.4 Wireless LAN adapter Wireless Network Connection: IPv4 Address. . . . . . . . . . . : 192.168.1.4(Preferred) I can ping my phone's (internal) ip address [192.168.1.5] from PC and vice-versa, I can ping my PC [192.168.1.4] from my phone. So why can't I access http://192.168.1.4 from my phone? (or PC) Firewall is off.

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• Internet Explorer changes brightness

  - by Sale

  I have a very annoying problem with IE8 on Vista: My screen brightness changes when I view a page with IE. It slowly dimms brightness some 20% - enough to be noticeable. This seems to be dependent on the OVERALL brightness of the page viewed or of the amount of bright space on the page... sometimes it dimms down if the page is bright, sometimes the complete different, it dimms when lot of dark space is on the page. I know this sounds weird, I cannot describe it better. It takes about one,two seconds from on brightness level to the other. This ONLY occurs in IE - not in Word or any other application. Please help! This dimming is very stressfull for my eyes.

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• Website hosting from home - IIS6

  - by Paul

  I'm wanting to host a few websites from home, primarily because I'm using some BETA Microsoft software (.NET 4 and EF) and don't want to install it on my production server which is hosted at eukhost.com. Basically, I'm completely new to this sort of thing. So far, here is what I've done: Registered the domain name at namecheap.com (let's call it mydomain.com) Gone to "Nameserver Registration" in the panel and entered my IP address for the NS1 and NS2 records (let's say the IP is 0.0.0.0). Gone to "Domain Name Server Setup" and entered ns1.mydomain.com & ns2.mydomain.com Forwarded requests from port 80 to my internal IP (let's say 192.168.1.254) Created the website in IIS (I'm just testing with a single website so far, so have not created any host header values) Now, if I type in the IP address (http://0.0.0.0) I get the site as expected. However, if I enter http://www.mydomain.com I get an error saying "DNS Error - Cannot find server". I'm aware that there is a service from DynDNS that will automatically change the IP if I have a dynamic address, however my IP has remained static since I installed the ISP (since October) so I don't need this. Is there any way that I can get the DNS to work just by configuring IIS or something in Windows? I don't really want to have to pay for any 3rd party service. Thanks,

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• Varnish with multiple sites/boxes

  - by jerhinesmith

  Is it possible for Varnish to redirect traffic to different IPs based on the url? For example, is the following setup feasible (and if so, what would the VCL look like): *.example.com points to Varnish IP address When a request is made to foo.example.com, varnish checks the cache and sends the request to Server1's IP address on a cache miss. When a request is made to bar.example.com, varnish checks the cache and sends the request to Server2's IP address on a cache miss. foo and bar are (for the most part) completely unrelated sites. They use the engine, but have different content and their own distinct database. Since there previously was no penalty for doing so (other than cost) we split them up into two separate boxes so that a ton of traffic to foo won't have a negative impact on visitors browsing around bar. I could set up two instances of varnish and have one serve up foo's static content and the other serve up bar's, but as there doesn't seem to be much overhead to running Varnish, I think (perhaps mistakenly) that it would make more sense to go with one Varnish server that redirects the traffic to the appropriate box on a cache miss.

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• VMware two vSwitches Guests can't communicate between them

  - by Aaron R.

  I have some servers in this configuration: And I am not able, from VMGuest1, to ping either VMGuest3 or VMGuest4. I can, however, ping Host1 and Host2, which are attached to pSwitch1. The behavior is the same with VMGuest3 or 4 trying to ping VMGuest 1 or 2. I don't have promiscuity enabled for any of these switches, nor do I have a bridge set up inside ESXi for the virtual switches. I know that one of these options is usually necessary when trying to get connectivity between two virtual switches. These switches are connected, however, through their respective physical switches which are bridged together. Ping just times out, arp request looks like this: [root@vmguest1:~]# arp -a vmguest3 vmguest3.example.com (1.2.3.4) at <incomplete> on eth0 [root@vmguest1:~]# arp -a host1 host1.example.com (1.2.3.5) at 00:0C:64:97:1C:FF [ether] on eth0 VMGuest1 can reach hosts on pSwitch1, so why can't it get to hosts on vSwitch1 through pSwitch1 the same way?

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• E-mail duplication problem

  - by Gavin Osborn

  I have taken out a hosting agreement with a well respected hosting provider for a couple of internet facing servers. We have deployed several applications to these servers which send various e-mails back to us for reporting purposes. Context: Each server runs Windows Server 2003 R2 with the IIS 6.0 SMTP service installed. Each application is configured to use the local instance of IIS to send e-mails. The external IP address of each server is mapped to a particular domain eg: server1.mydomain.com server2.mydomain.com These e-mails are sent from a company domain name and not the domain name of the hosted servers (eg: [email protected]) Symptoms: A small number (<1%) of e-mails sent from these applications appear to be duplicated. These are exact duplicate in terms of both content and message headers. The Fix: I contacted my hosting provider and they told me this was a common problem & instructed me to: Change the HELO response of your mail server service to a FQDN (server1.mydomain.com && server2.mydomain.com) Create a DNS A record that resolves the FQDN of your mail server to the primary IP address of your sending mail server. Create a PTR record that resolves your primary IP address back to your mail server's FQDN In the sending domain's (mycompanydomain.com) DNS zone file, add the appropriate SPF record for your hosted servers. eg: v=spf1 a mx include:mydomain -all The Problem Continues: I made all of the changes as prescribed above, I was a little hesitant because these steps seemed to suggest they were more for stopping your messages getting blocked than they were for stopping them from being duplicated - but I am certainly no expert in these matters. It has been 5 days since I applied this fix and the problem still persists. I am certain that these problems are not a bug in the software because they are 4 different applications installed on 2 different servers, all of whom are exhibiting this strange behaviour. This behaviour has also not been seen in our UAT environment. Were my hosts correct to suggest this fix? If not, does anyone know what could be the cause of this problem? Many Thanks

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• How to invert scroll wheel in certain applications using AutoHotkey?

  - by endolith

  I want to be able to modify the scrolling/middle click behavior for individual apps on Windows 7, so that the scroll to zoom direction is always consistent across apps. This script makes the middle button act as a hand tool in Adobe Acrobat, for instance: ; Hand tool with middle button in Adobe Reader #IfWinActive ahk_class AdobeAcrobat Mbutton:: #IfWinActive ahk_class AcrobatSDIWindow Mbutton:: Send {Space down}{LButton down} ; Hold down the left mouse button. KeyWait Mbutton ; Wait for the user to release the middle button. Send {LButton up}{Space up} ; Release the left mouse button. return #IfWinActive (It would be great if this could be adapted to allow "throwing" the document, too, like in Android or iPhone interfaces, but I don't know if it's possible to control scrolling that precisely) How do I invert the scroll wheel--zoom direction?

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• ssl_error_log apache issue

  - by lakshmipathi

  https://localhost works but https://ipaddress didn't cat logs/ssl_error_log [Mon Aug 02 19:04:11 2010] [error] [client 192.168.1.158] (13)Permission denied: access to /ajaxterm denied [root@space httpd]# cat logs/ssl_access_log 192.168.1.158 - - [02/Aug/2010:19:04:11 +0530] "GET /ajaxterm HTTP/1.1" 403 290 [root@space httpd]# cat logs/ssl_request_log [02/Aug/2010:19:04:11 +0530] 192.168.1.158 SSLv3 DHE-RSA-CAMELLIA256-SHA "GET /ajaxterm HTTP/1.1" 290 httpd.conf file NameVirtualHost *:443 <VirtualHost *:443> ServerName localhost SSLEngine on SSLCertificateFile /etc/pki/tls/certs/ca.crt SSLCertificateKeyFile /etc/pki/tls/private/ca.key <Directory /usr/share/ajaxterm > Options FollowSymLinks AllowOverride None Order deny,allow Allow from All </Directory> DocumentRoot /usr/share/ajaxterm DirectoryIndex ajaxterm.html ProxyRequests Off <Proxy *> # Order deny,allow Allow from all </Proxy> ProxyPass /ajaxterm/ http://localhost:8022/ ProxyPassReverse /ajaxterm/ http://localhost:8022/ ErrorLog error_log.log TransferLog access_log.log </VirtualHost> How to fix this ?

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• iptables: built-in INPUT chain in nat table?

  - by ughmandaem

  I have a Gentoo Linux system running linux 2.6.38-rc8. I also have a machine running Ubuntu with linux 2.6.35-27. I also have a virtual machine running Debian Unstable with linux 2.6.37-2. On the Gentoo and Debian systems I have an INPUT chain built into my nat table in addition to PREROUTING, OUTPUT, and POSTROUTING. On Ubuntu, I only have PREROUTING, OUTPUT, and POSTROUTING. I am able to use this INPUT chain to use SNAT to modify the source of a packet that is destined to the local machine (imagine simulating an incoming spoofed IP to a local application or just to test a virtual host configuration). This is possible with 2 firewall rules on Gentoo and Debian but seemingly not so on Ubuntu. I looked around for documentation on changes to the SNAT target and the INPUT chain of the nat table and I couldn't find anything. Does anyone know if this is a configuration issue or is it something that was just added in more recent versions of linux?

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• Symantec CPS / Backup Exec 11D Service stuck in "Starting" Status

  - by user42289

  I have two Windows 2003 (one is SE, one is SBS) both SP2, both are Virtual Machines of Microsoft Virtual Server 2005 R2. All of a sudden about 2 weeks ago, the Symantec Backup Exec / CPS 11D stopped working on them. One is the Media server, one is our Exchange 2003 Server. There is another copy of CPS on our file server that the service is running fine on. However the one that is fine is not a VM. When I say stop working, the "backup exec continuous protection agent" service is stuck in "starting" status. On the non Exchange server I've tried uninstalling the last Windows Updates that were run some time around the time of failure. I've tried repairing the install of CPS. I've tried uninstalling it and reinstalling. Exact same problem in the end.

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• ldirectord ipvsadm not show reals ip and not work wtih pacemaker and corosync

  - by miguer27

  first thanks for your time. I'm having a problem with ldirectord that I can not solve, I comment my situation: I have two nodes with pace maker and corosync and configure somes resources: root@ldap1:/home/mamartin# crm status Last updated: Tue Jun 3 12:58:30 2014 Last change: Tue Jun 3 12:23:47 2014 via cibadmin on ldap1 Stack: openais Current DC: ldap2 - partition with quorum Version: 1.1.7-ee0730e13d124c3d58f00016c3376a1de5323cff 2 Nodes configured, 2 expected votes 7 Resources configured. Online: [ ldap1 ldap2 ] Resource Group: IPV_LVS IPV_4 (ocf::heartbeat:IPaddr2): Started ldap1 IPV_6 (ocf::heartbeat:IPv6addr): Started ldap1 lvs (ocf::heartbeat:ldirectord): Started ldap1 Clone Set: clon_IPV_lo [IPV_lo] Started: [ ldap2 ] Stopped: [ IPV_lo:1 ] root@ldap1:/home/mamartin# crm configure show node ldap2 \ attributes standby="off" node ldap1 \ attributes standby="off" primitive IPV-lo_4 ocf:heartbeat:IPaddr \ params ip="192.168.1.10" cidr_netmask="32" nic="lo" \ op monitor interval="5s" primitive IPV-lo_6 ocf:heartbeat:IPv6addrLO \ params ipv6addr="[fc00:1::3]" cidr_netmask="64" \ op monitor interval="5s" primitive IPV_4 ocf:heartbeat:IPaddr2 \ params ip="192.168.1.10" nic="eth0" cidr_netmask="25" lvs_support="true" \ op monitor interval="5s" primitive IPV_6 ocf:heartbeat:IPv6addr \ params ipv6addr="[fc00:1::3]" nic="eth0" cidr_netmask="64" \ op monitor interval="5s" primitive lvs ocf:heartbeat:ldirectord \ params configfile="/etc/ldirectord.cf" \ op monitor interval="20" timeout="10" \ meta target-role="Started" group IPV_LVS IPV_4 IPV_6 lvs group IPV_lo IPV-lo_6 IPV-lo_4 clone clon_IPV_lo IPV_lo \ meta interleave="true" target-role="Started" location cli-prefer-IPV_LVS IPV_LVS \ rule $id="cli-prefer-rule-IPV_LVS" inf: #uname eq ldap1 colocation LVS_no_IPV_lo -inf: clon_IPV_lo IPV_LVS property $id="cib-bootstrap-options" \ dc-version="1.1.7-ee0730e13d124c3d58f00016c3376a1de5323cff" \ cluster-infrastructure="openais" \ expected-quorum-votes="2" \ no-quorum-policy="ignore" \ stonith-enabled="false" \ last-lrm-refresh="1401264327" rsc_defaults $id="rsc-options" \ resource-stickiness="1000" The problem is in the ipvsadm only show a one real IP, when i configured two now, show the ldirector.cf: root@ldap1:/home/mamartin# ipvsadm IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags - RemoteAddress:Port Forward Weight ActiveConn InActConn TCP ldap-maqueta.cica.es:ldap wrr - ldap2.cica.es:ldap Route 4 0 0 TCP [[fc00:1::3]]:ldap wrr - [[fc00:1::2]]:ldap Route 4 0 0 root@ldap1:/home/mamartin# cat /etc/ldirectord.cf checktimeout=10 checkinterval=2 autoreload=yes logfile="/var/log/ldirectord.log" quiescent=yes #ipv4 virtual=192.168.1.10:389 real=192.168.1.11:389 gate 4 real=192.168.1.12:389 gate 4 scheduler=wrr protocol=tcp checktype=on #ipv6 virtual6=[[fc00:1::3]]:389 real6=[[fc00:1::1]]:389 gate 4 real6=[[fc00:1::2]]:389 gate 4 scheduler=wrr protocol=tcp checkport=389 checktype=on and in the logs I see nothing clear: root@ldap1:/home/mamartin# ldirectord -d /etc/ldirectord.cf start DEBUG2: Running system(/sbin/ipvsadm -a -t 192.168.1.10:389 -r 192.168.1.11:389 -g -w 0) Running system(/sbin/ipvsadm -a -t 192.168.1.10:389 -r 192.168.1.11:389 -g -w 0) DEBUG2: Quiescent real server: 192.168.1.11:389 (192.168.1.10:389) (Weight set to 0) Quiescent real server: 192.168.1.11:389 (192.168.1.10:389) (Weight set to 0) DEBUG2: Disabled real server=on:tcp:192.168.1.11:389:::4:gate:\/: (virtual=tcp:192.168.1.10:389) DEBUG2: Running system(/sbin/ipvsadm -a -t 192.168.1.10:389 -r 192.168.1.12:389 -g -w 0) Running system(/sbin/ipvsadm -a -t 192.168.1.10:389 -r 192.168.1.12:389 -g -w 0) DEBUG2: Quiescent real server: 192.168.1.12:389 (192.168.1.10:389) (Weight set to 0) Quiescent real server: 192.168.1.12:389 (192.168.1.10:389) (Weight set to 0) DEBUG2: Disabled real server=on:tcp:192.168.1.12:389:::4:gate:\/: (virtual=tcp:192.168.1.10:389) DEBUG2: Checking on: Real servers are added without any checks DEBUG2: Resetting soft failure count: 192.168.1.12:389 (tcp:192.168.1.10:389) Resetting soft failure count: 192.168.1.12:389 (tcp:192.168.1.10:389) DEBUG2: Running system(/sbin/ipvsadm -a -t 192.168.1.10:389 -r 192.168.1.12:389 -g -w 4) Running system(/sbin/ipvsadm -a -t 192.168.1.10:389 -r 192.168.1.12:389 -g -w 4) Destination already exists root@ldap1:/home/mamartin# cat /var/log/ldirectord.log [Tue Jun 3 09:39:29 2014|ldirectord.cf|19266] Quiescent real server: 192.168.1.11:389 (192.168.1.10:389) (Weight set to 0) [Tue Jun 3 09:39:29 2014|ldirectord.cf|19266] Quiescent real server: 192.168.1.12:389 (192.168.1.10:389) (Weight set to 0) [Tue Jun 3 09:39:29 2014|ldirectord.cf|19266] Resetting soft failure count: 192.168.1.12:389 (tcp:192.168.1.10:389) [Tue Jun 3 09:39:29 2014|ldirectord.cf|19266] system(/sbin/ipvsadm -a -t 192.168.1.10:389 -r 192.168.1.12:389 -g -w 4) failed: [Tue Jun 3 09:39:29 2014|ldirectord.cf|19266] Added real server: 192.168.1.12:389 (192.168.1.10:389) (Weight set to 4) [Tue Jun 3 09:39:29 2014|ldirectord.cf|19266] Resetting soft failure count: 192.168.1.11:389 (tcp:192.168.1.10:389) [Tue Jun 3 09:39:29 2014|ldirectord.cf|19266] Restored real server: 192.168.1.11:389 (192.168.1.10:389) (Weight set to 4) [Tue Jun 3 09:39:29 2014|ldirectord.cf|19266] Resetting soft failure count: [[fc00:1::2]]:389 (tcp:[[fc00:1::3]]:389) [Tue Jun 3 09:39:29 2014|ldirectord.cf|19266] system(/sbin/ipvsadm -a -t [[fc00:1::3]]:389 -r [[fc00:1::2]]:389 -g -w 4) failed: [Tue Jun 3 09:39:29 2014|ldirectord.cf|19266] Added real server: [[fc00:1::2]]:389 ([[fc00:1::3]]:389) (Weight set to 4) [Tue Jun 3 09:39:29 2014|ldirectord.cf|19266] Resetting soft failure count: [[fc00:1::1]]:389 (tcp:[[fc00:1::3]]:389) [Tue Jun 3 09:39:29 2014|ldirectord.cf|19266] Restored real server: [[fc00:1::1]]:389 ([[fc00:1::3]]:389) (Weight set to 4) do not know if this is a bug or a configuration error, can anyone help? Regards.

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• How much RAM 64bit Windows 8 reserves to OS internal use?

  - by Barleyman

  Windows reserves some memory for it's internal use which is not normally allocated to applications. This reserve is seen most easily if you run without a page file or limit the pagefile to relatively small size (such as 3GB). Windows will allocate primarily RAM up to the limit, fill up remaining free space in the page file (if any) and issue a low memory warning when there is no page file space left and the allocated RAM limit is exceeded. The limit appears to be a percentage of the total system RAM. Windows 7 x64 limit is discussed here and methods for circumventing the "low memory warning" is discussed here. Disabling the low memory warning has some advantages - You can use some 600MB more RAM on 8GB machine) But there is a serious disadvantage - When you're out of ram, programs will crash. How much RAM can you allocate on 8GB Windows 8 x64 before you get the low memory warning? Is it possible to adjust the warning threshold?

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• Duplicate xserver

  - by hariks0

  When I start my ubuntu pc, just before my login, I receive a message that says "An xserver is already started in display :0. Would you like to try starting xserver in another virtual workspace?". Now If I answer 'No' the message appears again and again. If I say 'Yes' It goes to gnome desktop in virtual desktop 9 [Ctrl+Alt+F9] It was previously available only in [Ctrl+Alt+F7] but now available in both F7 and F9. Now I assume that there are two instances of xserver both in [Ctrl+Alt+F7] and [Ctrl+Alt+F9]. I think by killing one instance of xserver manaually I can disable the message. How do I do this? Thanks in advance.

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• How to get a maximum file size of VZFS parition?

  - by Nulldevice

  I have a VPS hosting with a VZFS file system. How can I determine maximum file size of VZFS partition? UPD: Free space (or total space) is not what i need. Sometimes file cannot occupy a hole partition volume - fat16 with 2Gb limit is a good example. I need to use a large database file (say, 64Gb) and so I need to know if a file system of VPS hosting will cope with it. It is easy to calculate for an ext3 filesystem using tune2fs, but VPS uses VSFS by Virtuozzo, and it is documented bad. Is it any generic way to calculate maximum file size for some filesystem in linux?

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• Can I use an nVidia Geforce 9600GT for triple-monitor?

  - by John Rudy

  My work PC has (as you can guess from the title) a single Geforce 9600GT card. According to the spec page for this card, both DVI ports are Dual-Link DVI. Both are currently in use on Dell 19" 1280x1024 screens. I'm running Windows 7, with Aero enabled, for what that's worth. What I'm wondering is if I can use a standard DVI splitter cable to drive a third screen from one of the ports -- specifically a Samsung 22" 1680x1050. I'm really outgrowing the two-screen setup, and am strongly considering bringing in my home monitor (which is almost never used) to bolster my usable space. If I can't, then my alternative is to replace one of these Dells with that Samsung, to give me at least a "little" more space. (Before you ask, there's probably no chance I can get my company to spring for a second video card and third monitor. Even if I could, it would not be politically expedient, as a number of my other coworkers are already pretty jealous at my setup.)

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• Create intentional border with xrandr

  - by benizi

  Is there a way to tell xrandr "this space intentionally left blank"? I have a laptop that drives its internal display at 1920x1080, but the external monitor I'm using, due to its different aspect ratio, doesn't have that mode. It runs at 1920x1200. So, the basic setup: xrandr \ --output LVDS-1 --mode 1920x1080 \ --output DP-1 --mode 1920x1200 --same-as LVDS-1 [not to scale:] +-----------------------------------+ ¦ ¦ ¦ ¦ (laptop) ¦ (external) ¦ ¦ (LVDS-1) ¦ (DP-1) ¦ ¦ ¦ ¦ ¦ ¦ ¦ +-----------------¦ ¦ (blank...) ¦ ¦ +-----------------+ How can I specify that the 1920x120-sized region below LVDS-1 should be displayed as a black bar that can't be accessed by mouse on DP-1? I tried just coping with --panning 1920x1200+0+0/1920x1080+0+0/0/0/0/120, but I found the screen movement to be very annoying. Update: I found a workaround. (Update 2: changed it to an answer, per suggestion -- workaround doesn't answer the underlying question of leaving space blank.)

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• Tidying up old apache logs managed by vlogger

  - by Andre Lackmann

  We're using vlogger to manage our apache logs which keeps everything nice and neat but pretty much breaks the ability to use logrotate from as far as I can see. eg. our virtual access.logs each sit within their own dir and are named similar to: /virtual.com/ 20100501-access.log 20100502-access.log 20100503-access.log 20100504-access.log etc.. Has anyone created a cleanup script to go through the /var/log/httpd/ sub dirs and remove old logs? We like using vlogger, but cleaning up olds logs after it is a pain!

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• How to mount a cdrom to a kvm/qemu domain?

  - by ??O?????

  I have set up a virtual machine running Windows XP on my Ubuntu laptop. Using the virt-manager GUI application, I can insert a CD in my drive and go to Details?IDE CDROM 1 and click on the Connect button. Then the CD becomes available in my virtual machine. How can I do the same through the command line? Obviously, I'd like to be able to disconnect from the command line too. Note: I can start the VM from the command line using virsh start testbed (testbed being the name of the domain/VM).

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• Cisco RV042 VPN with Dynamic IPs - Remote Gateway Not Resolving

  - by Rister

  I have an existing network setup that I inherited from my predecessor. Currently there are two sites, each with a Linksys RV042 VPN router running the 1.3.12.19-tm firmware. They are currently set up with a Gateway to Gateway VPN. One site has a static IP, the other has a Dynamic IP with a hostname set up on no-ip.com. My company is looking to set up another site so I purchased another RV042 only this one was Cisco branded and it is running the latest firmware. I had assumed that I would be able to configure a vpn from our main office (the dynamic ip) to the new site with this router quite easily. However when I set up a new VPN tunnel on either device, it stays on Waiting for Connection and the Remote Gateway shows an ip address of 0.0.0.0 rather than the remote ip address. The other VPN tunnel is still working and I don't see any obvious misconfiguration on the new router. It seems that the router is not resolving the Dynamic DNS address and therefore not giving me the option to connect the VPN. Does a Gateway to Gateway VPN work with Dynamic IP addresses on each end? Are the firmware versions not compatible? Is there something I've missed?

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• data recovery from unallocated harddisk partition

  - by user42151

  Hi I accidentally deleted a partition which mainly served as space I put my data, labeled D: drive. The partition wasn't subsequently formatted though, following the delete incident. Obviously the D: drive doesn't show up as it usually does when I run Windows 7. In the "Computer Management", on clicking the Disk Management I clearly see the space is now labled as unallocated. question: How do I go about recovering my data. Perhaps what the effective data recovery software I can use to resolve this issue. Thanks

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• data recovery from unallocated harddisk partition

  - by user36007

  Hi, I accidentally deleted a partition which mainly served as space I put my data, labeled D: drive. The partition wasn't subsequently formatted though, following the delete incident. Obviously the D: drive doesn't show up as it usually does when I run Windows 7. In the "Computer Management", on clicking the Disk Management I clearly see the space is now labled as unallocated. question: How do I go about recovering my data. Perhaps what the effective data recovery software I can use to resolve this issue. Thanks

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• data recovery from unallocated harddisk partition

  - by user36007

  Hi, I accidentally deleted a partition which mainly served as space I put my data, labeled D: drive. The partition wasn't subsequently formatted though, following the delete incident. Obviously the D: drive doesn't show up as it usually does when I run Windows 7. In the "Computer Management", on clicking the Disk Management I clearly see the space is now labled as unallocated. question: How do I go about recovering my data. Perhaps what the effective data recovery software I can use to resolve this issue. Thanks

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• Postfix issues sending mail to addresses under domain located on server

  - by iamthewit

  I recently installed virtualmin on my nice shiny new rackspace cloud. Everything went seemlessly but I've been having some issues getting emails to send properly. The problem seems to be that the server can not send mail to email addresses where the domain is owned by my server. For example, on my server I run multiple virtual domains, lets call this one test.com. When I run the mail command from shell (mail [email protected]) I get the following back from my maillog: Oct 6 14:55:18 test postfix/pickup[8737]: DC1131612CC: uid=0 from= Oct 6 14:55:18 test postfix/cleanup[8769]: DC1131612CC: [email protected] Oct 6 14:55:18 test postfix/qmgr[8738]: DC1131612CC: [email protected], size=353, nrcpt=1 (queue active) Oct 6 14:55:18 test postfix/error[8771]: DC1131612CC: [email protected], relay=none, delay=0, delays=0/0/0/0, dsn=5.0.0, status=bounced (User unknown in virtual alias table) Oct 6 14:55:18 test postfix/cleanup[8769]: DD07D1612D1: [email protected] Oct 6 14:55:18 test postfix/bounce[8772]: DC1131612CC: sender non-delivery notification: DD07D1612D1 Oct 6 14:55:18 test postfix/qmgr[8738]: DD07D1612D1: from=<, size=2268, nrcpt=1 (queue active) Oct 6 14:55:18 test postfix/qmgr[8738]: DC1131612CC: removed Oct 6 14:55:18 test postfix/local[8773]: DD07D1612D1: [email protected], relay=local, delay=0.03, delays=0/0/0/0.03, dsn=2.0.0, status=sent (delivered to command: /usr/bin/procmail-wrapper -o -a $DOMAIN -d $LOGNAME) Oct 6 14:55:18 test postfix/qmgr[8738]: DD07D1612D1: removed when I run mail [email protected] the message is sent and received perfectly fine. I'm a bit of a noob when it comes to servers, but I pick things up fairly quickly, so please excuse any incorrect terminology and my general noobiness. Any help would be greatly appreciated, I've been googling for quite a while but I haven't found a solution yet, I'll add a copy of my main.cf file in a response below cheers guys here is the reformatted postconf, do you want the reformatted main.cf file too, or is this enough? alias_database = hash:/etc/postfix/aliases alias_maps = hash:/etc/postfix/aliases broken_sasl_auth_clients = yes command_directory = /usr/sbin config_directory = /etc/postfix daemon_directory = /usr/libexec/postfix debug_peer_level = 2 home_mailbox = Maildir/ html_directory = no mailbox_command = /usr/bin/procmail-wrapper -o -a $DOMAIN -d $LOGNAME mailq_path = /usr/bin/mailq.postfix manpage_directory = /usr/share/man myhostname = server.test.com newaliases_path = /usr/bin/newaliases.postfix readme_directory = /usr/share/doc/postfix-2.3.3/README_FILES sample_directory = /usr/share/doc/postfix-2.3.3/samples sender_bcc_maps = hash:/etc/postfix/bcc sendmail_path = /usr/sbin/sendmail.postfix setgid_group = postdrop smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous unknown_local_recipient_reject_code = 550 virtual_alias_maps = hash:/etc/postfix/virtual

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• Trouble with resolving hostnames on CentOS using Bind

  - by cabaret

  I'm taking a course on server administration at school and I have managed to set up virtual hosting in apache and a dns server on a virtual machine. However, I have now set up an old pc to run CentOS and I'm trying the same on that box. The problem I ran into now is that I can't resolve hostnames from the linux box. I have set up the nameserver in /etc/resolv.conf to the IP of the CentOS machine, but when I try for example ping google.com I get ping: unknown host google.com However, when I do ping 66.102.13.105 (which is the Google IP, figured that out by pinging on my mac) I get: PING 66.102.13.105 (66.102.13.105) 56(84) bytes of data. 64 bytes from 66.102.13.105: icmp_seq=1 ttl=52 time=15.5 ms Slightly confused why this is happening. Could it be because of my router sitting in between the linux machine and the cable modem? It's a D-Link somethingsomething. Thanks in advance

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