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• How to Load Balance 2 Internet Connections on a Windows 7 machine?

  - by Jimmy Chandra

  It's sort of related to this particular question, but that one is on Mac. I am looking for similar solution on Windows 7. I have 2 network connections: (Connection A) Wireless terminal connecting to ISP A (3G / EVDO internet provider) (Connection B) Broadband wired connection connecting to ISP B (Cable internet provider) Both has access to the internet. When I try connecting to a website and checking the networking tab on my Task Manager, I only see the network traffic being routed to only Connection A. Is there a way to make the computer to utilize both network (in a sense using all the bandwidth available from both the Cable ISP and the 3G / EVDO ISP) at the same time? If so, what do I need to do to set this up ... on Windows 7? Here is a bit more info on my network connections (ipconfig /all): PPP adapter Wireless Terminal: IPv4: aa.bb.ccc.ddd(preferred) Subnet mask: 255.255.255.255 Default Gateway: 0.0.0.0 DNS: aa.ee.f.ggg aa.ee.f.hhh Primary Wins: jjj.ii.k.l Secondary Wins: jjj.ii.k.m Ethernet adapter LAN: IPv4: 192.168.1.100 (connected to a router by wired that itself connect to a cable modem) subnet mask: 255.255.255.0 Default gateway: 192.168.1.1 (the wireless router) DHCP: 192.168.1.1 (the wireless router) DNS: xxx.yy.zz.ww rr.sss.t.uuu For my own privacy, I don't believe the actual number matters, the patterns are representative of the ip numbering scheme...

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• Filesharing mac 10.6 with windows vista

  - by adam

  Ive followed all the tutorials on the net to no avail. I can see my vista pc in finder on the mac but when I click on it tries to connect but fails. The same is true from vista, it can see the mac but i cant connect. Wont even offer a login box. So I tried to troubleshoot by using a 3rd computer with xp. It joined the network and can access both the mac and vista on the same workgroup. Mac sees it and it shows under finder but i cant access it by clicking on the icon i have to access by using the ip of the xp machine...strange. Ive turned off all my firewalls. The fact that xp can connnet to the others and vice versa boggles my mind why vista and mac cant connect directly. Oh and pings indicates the same. I.e. xp has no problem but mac to vista and vice versa fails. Can anyone help.

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• Road Warrior VPN Setup

  - by wobblycogs

  I apologise up front for the rather open ended nature of this question but I've got well out of my depth and could really do with some pointers. I need to set up a road warrior VPN solution which will allow our customers to securely access a number of services we provide for them. Customer machines will be running a variety of Windows versions from XP onwards with a variety of patch levels. Typically they will connect from the clients main offices but not always. It is safe to assume that all clients will be behind NATs but we may occasionally see a connection that isn't NAT'ed. Typical connection situation is therefore: Customer Laptop -- Router (NAT) -- Internet -- VPN Server + Firewall -- Server (Win 2008 R2, Non-routable IP) There will initially be a dozen or so people that could connect but that will grow quickly to around 100. It's unlikely that we'll see that many concurrent connections though, I imagine our total VPN throughput would be <50Mbps peak. What are my options for setting this up? I've been trying to set up a system like this using a MikroTik router for a few days but have struggled to get it working correctly, particularly with NAT'ed clients. I've had a quick look at OpenVPN and liked what I saw but I think it's unlikely our customers IT departments would allow the client to be installed. Finally I've looked at the Cisco ASA range but I'm on a fairly tight budget so this is less preferable but it looks like it would work pretty much out of the box. My fall back position is to connect the server directly and use the provided VPN + Firewall facilities but that is far from ideal as the number of servers is likely to grow over time.

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• OS X can connect to Windows machine, but can't access shared folders

  - by Bonnie

  I can create new folders on my Windows XP machine, set them to "shared". On my Mac, I pick Finder → Go → Connect to Server → smb://192.168.1.4 → Connect → Name / Password. It even shows me all the names of the newly created shared-folders on my PC, but when I try to actually connect to any of them I get connection failed, there was an error connecting Any idea on what would cause that? The fact that it successfully gets so far—to actually showing me my PC share-names—must mean I have 99% of this working correctly, i.e. the physical connection, the IP address, the user name, the password, etc. Still, I can't seem to access the folders themselves. I've tried this with my Windows XP firewall on/off, and Norton AntiVirus on/off. Same problem. Everything did work fine, 4 months ago. Were there any odd OS X or Windows updates released recently? I always apply them all. smbclient on the Mac does correctly find the XP machine, my XP user name, and accepts my XP password. I get the following from that smbclient command: Doing spnego session setup (blob length=16) server didn't supply a full spnego negprot Got challenge flags: ... Got NTLMSSP flags: ... Got NTLMSP flags: ... Domain=[XPMACHINE] OS=[Windows 5.1] Server=[Windows 2000 LAN Manager] tree connect failed: NT_STATUS_INSUFF_SERVER_RESOURCES I'm not sure why a standard XP box can't "supply a full spnego negprot". Whatever that means. Using XP's RegEdit to change my IRPStackSize from 11... to 13, 15, 20, 22... still gives that "NT_STATUS_INSUFF_SERVER_RESOURCES" error on the Mac.

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• Shorewall log question.

  - by Shikoru

  I have been getting various attempts to connect to ports on my shorewall firewall. The ports that I keep seeing connection attempts at are tcp 44444, tcp 44446, udp 55555 and every now and then some slight variation. I ran "netstat -a" and did not see anything listening on those ports. Is this something that I should be worried about or is it just some rouge computers out there? I have noticed alot of the ip addresses are from Spain and Mexico. May 25 18:39:35 Takkun kernel: [62516.626514] Shorewall:net2fw:DROP:IN=eth0 OUT= MAC=00:d0:b7:65:d4:13:34:ef:xx:xx:xx:81:08:00 SRC=200.124.9.113 DST=72.xxx.xxx.xxx LEN=48 TOS=0x00 PREC=0x00 TTL=112 ID=51796 DF PROTO=TCP SPT=2071 DPT=44446 WINDOW=16384 RES=0x00 SYN URGP=0 May 25 18:39:52 Takkun kernel: [62535.433285] Shorewall:net2fw:DROP:IN=eth0 OUT= MAC=00:d0:b7:65:d4:13:34:ef:xx:xx:xx:81:08:00 SRC=72.50.95.174 DST=72.xxx.xxx.xxx LEN=90 TOS=0x00 PREC=0x00 TTL=105 ID=31130 PROTO=UDP SPT=59505 DPT=55555 LEN=70 May 25 18:40:05 Takkun kernel: [62548.963413] Shorewall:net2fw:DROP:IN=eth0 OUT= MAC=00:d0:b7:65:d4:13:34:ef:xx:xx:xx:81:08:00 SRC=77.12.37.1 DST=72.xxx.xxx.xxx LEN=90 TOS=0x00 PREC=0x00 TTL=108 ID=9585 PROTO=UDP SPT=20401 DPT=55555 LEN=70 That is the jist of what im seeing.

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• Forward mDns from one subnet to another?

  - by user37278

  Is there an ipfw rule that can easily forward mDns packets from one subnet to another? I have a Snow Leopard Server machine serving as the gateway between the two subnets and would like for machines in each subnet to see the services available in the other subnet. The gateway machine is already confirmed as configured correctly such that packets route correctly between the two subnets (ping works, traceroute shows the subnet hop, etc). My problem in designing a ipfw rule is that I don't know how to instruct that I would like multicast packets addressed to 224.0.0.251:5353 on en0 to be addressed to the same ip/port but on fw0 (the other interface). I attempted a rule such as fwd 192.168.10.1 log udp from 192.168.1.0/24 to 224.0.0.251 recv en1 to force the packet to hop over to the other interface (from en1 to fw0), but no dice. The ipfw log shows that the rule is being triggered by packets, but tcpdump isn't showing any packets on the other interface. Also, the only other firewall rules in place are the divert port 8668 and rule #65535 "allow any to any". Any suggestions? Thanks.

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• Suddenly can't send E-Mails with Apple Mail to Gmail SMTP

  - by slhck

  Hi all, I have a weird problem that started just today. I am using Apple Mail on a Leopard machine, connecting to Gmail. Fetching e-mail works just fine. My SMTP settings are also correct. Still, I can't send mail, it will display a pop up saying that "transferring the content to the mail server" failed (translation from German, could be different in English OS X versions). I have verified the following: My SMTP settings are definitely correct. I have not changed them and the issue appeared today. Also, I went through the Apple online configuration for Gmail accounts and did not have to adjust any setting. I can run network diagnosis and it will connect to both POP and SMTP servers without a problem (all green lights) The Telnet details will show me the HELO message from the Gmail servers, so there's no authentication failure. Console.app will not show any messages related to "mail" when I try to send the mail, so there's no specific error message The mail I'm trying to send does not have an attachment, it is plaintext only I can login to gmail.com and send mails without a problem The recipient address exists and contains no syntax errors I can also not send mails to myself When using another IP and ISP (through VPN), it still doesn't work As for my settings: I connect to smtp.gmail.com and for advanced settings I choose password-based authentication with user: [email protected] and my password. I let Apple Mail try the default ports (for SSL and TLS, respectively). Again: I have not changed a thing between yesterday and today. What is causing that strange behavior? Any help would be much appreciated.

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• Why is 32-bit-mode required in IIS7.5 for my app?

  - by Jonas Lincoln

  I have a .net4 web application running in a 64 bits 2008 server. I can only get it to run when I set the app pool to Enable 32-bits application to true. All dlls are compiled for .net4 (verified with corflags.exe). How can I figure out why Enable 32-bit is required? The error message from the event log when starting as a 64-bit app-pool Event code: 3008 Event message: A configuration error has occurred. Event time: 2011-03-16 08:55:46 Event time (UTC): 2011-03-16 07:55:46 Event ID: 3c209480ff1c4495bede2e26924be46a Event sequence: 1 Event occurrence: 1 Event detail code: 0 Application information: Application domain: removed Trust level: Full Application Virtual Path: removed Application Path: removed Machine name: NMLABB-EXT01 Process information: Process ID: 4324 Process name: w3wp.exe Account name: removed Exception information: Exception type: ConfigurationErrorsException Exception message: Could not load file or assembly 'System.Data' or one of its dependencies. An attempt was made to load a program with an incorrect format. at System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) at System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() at System.Web.Configuration.AssemblyInfo.get_AssemblyInternal() at System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) at System.Web.Compilation.BuildManager.CallPreStartInitMethods() at System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException) Could not load file or assembly 'System.Data' or one of its dependencies. An attempt was made to load a program with an incorrect format. at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection, Boolean suppressSecurityChecks) at System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) at System.Reflection.Assembly.Load(String assemblyString) at System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) Request information: Request URL: "our url" Request path: "url" User host address: ip-adddress User: Is authenticated: False Authentication Type: Thread account name: "app-pool" Thread information: Thread ID: 6 Thread account name: "app-pool" Is impersonating: False Stack trace: at System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) at System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() at System.Web.Configuration.AssemblyInfo.get_AssemblyInternal() at System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) at System.Web.Compilation.BuildManager.CallPreStartInitMethods() at System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException) Custom event details:

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• PTR record not valid for all domains

  - by charnley

  We have an issue sending emails to certain domains, namely Time Warner and Cox. Last week, we decommissioned our Exchange 2003 server and now our Exchange 2010 server is doing all of the transport for our domain. We run our own authoritative name servers, so we are in charge of the DNS and have modified our PTR record to reflect the new server. All mailflow is working except for these 2 domains. When I telnet on port 25 to the mail servers for Cox and Time Warner I am receiving errors. For Cox the error is: 554... rejected - no rDNS And when I telnet to port 25 to the Time Warner mail server we get this: 554 5.7.1 - Connection refused. IP name lookup failed for x.x.x.x I have run through the outbound SMTP test on Microsoft Remote Connectivity Analyzer and get 100% completely successful results. MXToolbox comes up with all successful tests on SMTP as well, showing correct reverse banner check, and no blacklisting. DNSQueries.com shows a valid reverse DNS entry as well for us. Outbound emails to these 2 domains continue to sit in the queue. Any ideas or advice would be greatly appreciated. Thanks!

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• SSH connection problem - allowed from LAN but not WAN

  - by Kerem Ulutas

  I tried to setup my Arch Linux installation to be an SSH host, but here is the thing: I can ssh localhost, it fails to login via public key and asks for username and password, but still able to login. When I try ssh my_wan_ip it gives ssh_exchange_identification: Connection closed by remote host error. I've read all topics about this error and none helped me. By the way, just confirmed, it gives ssh: connect to host my_dyndns_hostname port 22: Connection refused from another machine (outside of my network, it has different wan ip). I have sshd: ALL in "hosts.allow", ALL:ALL in "hosts.deny". I am able to connect to my own pc via ssh, ping my own pc, but my ssh setup seems to be the problem, it gives that annoying error when I try to ssh from wan. /etc/ssh/ssh_config /etc/ssh/sshd_config And finally, here is the debug output for both sshd and ssh: (i ran ssh command and i took output to sshd debug after that): sshd debug ssh debug I can edit my question according to your needs. Just ask for any more information needed. BTW I have no iptables running. I have one cable dsl modem connected to a asus wl-330gE wireless access point, they both have their firewall disabled. I configured NAT so port 22 is directed to the pc I'm having this trouble. Any help appreciated, thanks..

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• Apache2 VirtualHosts 403 Oddity

  - by Carson C.

  I'm sure this is something I should already understand, but I'm finding myself confused. The configs in play add up to this: NameVirtualHost *:80 Listen 80 <VirtualHost *:80> <Directory /> Options FollowSymLinks AllowOverride None Order deny,allow Deny from all </Directory> </VirtualHost> <VirtualHost *:80> ServerAdmin [email protected] ServerName domain.tld ServerAlias *.domain.tld DocumentRoot /var/www/domain.tld <Directory /var/www/domain.tld> Options -Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny Allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log LogLevel warn CustomLog ${APACHE_LOG_DIR}/access.log combined </VirtualHost> DNS is working correctly. The issue is, every variant of http://*.domain.tld/ (including http://domain.tld/) works correctly, except http://www.domain.tld/ which throws a 403. The logs state: client denied by server configuration: /etc/apache2/htdocs If I remove the first VirtualHost block from play, everything works as expected including http://www.domain.tld. This leads me to believe that for some reason, Apache is not considering www.domain.tld to match the second VirtualHost block, and is thereby falling back to deny all. This seems wrong. Shouldn't the second block match www.domain.tld? I've been able to resolve this, but I still don't understand why. In my original configs, I was using the real ip address of the server instead of *. Switching all instances to * as shown above made everything work as expected. Does this have something to do with the way browsers request resources?

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• Server 2003 PDC DNS not working..Failover server is...

  - by Seth

  In the midst of trying to utilize proc power, i create a fault tolerant DNS server a while ago. Since, Ive been trying to add another controller for exchange. So I thought I would revert back to a single primary DNS for the meantime and now Im balancing on a thread. The server i thought I uninstalled DNS, is still acting as DNS. And now the PDC does not resolve. Can anybody walk me through, Im overwhelmed and cant think straight... Im afraid if anyone restarts their machine they wont have internet. Update Ok so from the beginning. I was configuring Exchange on a new server 2008. How it happened I dont know, but it started to not resolve DNS. (exclamation mark on NIC) even though everything was static. So ultimately I decided to remove the server from the problem, because I noticed DNS was in disarray if I used the DNS IP of the first server. This is when I tested with nslookup on each DNS server. I had uninstalled DNS from the second server, but nslookup was still resolving with that IPaddress, which has me all wound up cause I dont understand. So, since the first DNS server isn't resolving, Im assuming if the second one isnt configured right I'll loose internet. Im just confused and dont know where to start troubleshooting...

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• linux command prompt ftp to ftp server running on windows

  - by Vass

  Hi, I am using on Windows Vista, Filezilla server. I have it set up to be accessed via outside IPs and when I use a client on the IP I have it connects normally using Filezilla client. On the same machine I have Ubuntu running in a virtual box and when using filezilla client in there it works fine. Now I want to try the command prompt. So I do the ftp xxx.xxx.xx.xx I enter the name and password and i get the ftp command prompt, but the commands are not working properly. when trying "ls" or "cd" these commands do not work. "cd" tells me that the current directory is "/" root, but this does not make sense in the windows operating system. Now the filezilla client is taking the user in the application window directly to the root folder of the permitted filespace granted to that user. How can the same be done from the command prompt, if there is a way? It is as if the command prompt takes me to the root which does not exist or even have correct permissions to move in. Is there any way to be taken to the correct directory directly, or move there especially when the slashes are the wrong way around etc? Best,

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• Looking for a host based network monitor solution

  - by Ole Martin Handeland

  Hi all! Problem So, my hosting company has a network usage graph for my dedicated server. It seems that one day earlier this month, my network usage suddenly spiked with several hundred megabytes transferred (usually it's in the tens, not hundreds). It was probably me, but i just can't be sure who or what it was. Question So my question is; does anyone know of any host based solution for monitoring network usage that would tell me the client's IP-address, the port/service he/she used? What I don't want I'm just guessing that someone will suggest i use nagios, munin, zabbix, cacti, mrtg - I've also looked at those, but a graph over network usage will not give me the answers I'm looking for. :-) Almost there I've already looked at a lot of monitoring solutions, and I've tried [ntop][http://www.ntop.org/], [darkstat][http://unix4lyfe.org/darkstat/] and others. Darkstat just didn't give me the answers. Although it listed a lot of statistics, and i could list the clients - it doesn't show me the network usage for a particular period. Ntop is by far the best I've seen so far - but i think it mostly shows current network usage, not the historical part. I could run apt-get upgrade and download a whole bunch of software, but not see it in the log afterwards.

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• SNMP Access on Ubuntu

  - by javano

  I am trying to use SNMP to monitor a machine locally on its self and remotely. This is the snmpd.conf (Ubuntu 8.04.1): # sec.name source comunity com2sec readonly 1.2.3.4 nicenandtight com2sec readonly 5.6.7.8 reallysafe group MyROGroup v1 readonly group MyROGroup v2c readonly group MyROGroup usm readonly view all included .1 view system included .iso.org.dod.internet.mgmt.mib-2.system access MyROGroup "" any noauth exact all none none syslocation my house syscontact me <[email protected]> exec .1.3.6.1.4.1.2021.7890.1 distro /usr/bin/distro smuxpeer .1.3.6.1.4.1.674.10892.1 includeAllDisks 95% 1.2.3.4 is the local machines IP and everything is working locally. 5.6.7.8 is the remote machine and initially I am just trying to touch SNMPD with snmpwalk from the remote machine; snmpwalk -v 2c -c reallysafe 1.2.3.4 Timeout: No Response from 1.2.3.4 I have added to iptables as the very first rule; -A INPUT -p udp -m udp --dport 161 -j ACCEPT With such a loose iptables rule I can't see why I can't even touch the SNMPD on that Uubuntu Machine. There are more specific rules further down the table but as I couldn't connect I added the above. TCPDump shows the UDP packets coming in. What could be going wrong here?

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• AD domain on web servers behind NAT - DNS issues?

  - by Ant

  I'm trying to setup an AD domain to manage the security between two Windows Server 2008 webservers that will sooner or later use NLB to balance website requests. I've hit a problem which I think is a simple solution and is down to DNS. My website domain is mydomain.com. The two servers are running behind a NAT firewall on the 10.0.0.0 IP range. I've setup the AD domain to be called ad.mydomain.com (as recommended by MS and a few other answers to questions on here). The second web server however doesn't want to join the domain, and gives an error pinning the problem on DNS - "ensure that the domain name is typed correctly" even though it queries the SRV record successfully and gets the correct DC back - dc.ad.mydomain.com. Doing a dcdiag /test:dns on the DC gives the Delegation error 'DNS Server dc.mydomain.com Missing glue A record'. I have a feeling I need to add something to the public DNS so that it in some way knows about ad.mydomain.com. Can anyone suggest whether I'm on the right track in adding something to the public DNS? Or whether it's something else? Many thanks

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• Sending bulkmail from different server?

  - by Omer Gencay

  I want to send bulk domains from my vps for a domain(cagetur.com) hosted in another company. The company(cagetur) will go on using the old hosting account for its mailing operations. The vps will just be used for smtp for once a week. I created an A record "vps.cagetur.com". directed it to the IP adress of vps then created a mx record with bigger preference number "50 vps.cagetur.com." on the domain control panel. When I trace the "vps.cagetur.com" i can reach my vps now. I installed hMail on the vps. Configure it (created domain, accounts). I have no information about "system" so i couldn't get further from this point. I can connect to the mail server with Outlook without errors. I can send an email from the account on the vps but it doesn't reaches. No errors, no emails. What do i have to do for getting it work? Thank you.

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• How do you change a Cisco ASA 5510 management interface?

  - by Sam Sanders

  I want to add a redundant interface to my Cisco ASA 5510. The management interface is currently using Ethernet0/1 (10.1.25.254/24) one of the interface I want to use for the redundant interfaces. So I wanted to setup Management0/0 as the new management interface. The other interface I want to use is Ethernet0/2 (10.1.0.254/24) for the redundant interface. The Ethernet0/3 (10.1.251.5/24) interface is not going to be part of the redundant interface. I gave the Management0/0 an IP address of 10.1.254.5, and was able to connect a win7 box to Management0/0 and use 10.1.254.5 as a gateway; and ping another address on the (10.1.251.0/24) network, but I can't ping the interface (10.1.254.5) itself. I also can't use ASDM/SSH to log onto the ASA at 10.1.254.5. I setup rules in Configuration Device Management Management Access ASDM/HTTPS/Telnet/SSH. That look like the original rules for the Ethernet0/1 interface. The last thing I can think to try would be to change the Configuration Device Management Management Access Management Interface. I'm a bit nervous about changing it, the description of it is a bit vague. What it's going to do if I change it? What is the correct way to change a management interface?

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• How to setup firewall to allow internet connection sharing via Wifi USB stick?

  - by hannanaha

  I have a Windows8 computer linked to the internet via an ethernet cable ("Ethernet" network connection). I have attached to it a DLink Wifi USB stick, and I'm trying to share the main PC's internet connection with my Android phone via a local wifi network. I am using the following batch file to set up this network: netsh wlan set hostednetwork mode=allow ssid=MyWifiName key=password keyUsage=persistent netsh wlan start hostednetwork After I run this script, I can see a new network connection appear in "Control Panel\Network and Internet\Network Connections" named "Local Area Connection *12", and I can see "MyWifiName" on the Android phone. The device name for this connection on the PC is "Microsoft Hosted Network Virtual Adapter". I also set up the "Ethernet" connection to share Internet with "Local Area Connection *12". However, the Android phone usually doesn't manage to obtain an IP from the wireless network, and when it does, there still seems to be no connectivity to the internet. When I turn off the Windows Firewall completely, or even just for "Local Area Connection *12", the Android connection is perfect. My questions are: How should I set up the Windows firewall to allow the phone to connect properly? Is there a specific rule I need to add to the Windows firewall advanced settings? [Note: the above method worked great in Windows 7, without any specific tinkering with the firewall]. Is it safe to turn off the firewall specifically for the "Local Area Connection *12" (the wifi connection) if the main Ethernet connection is still protected by the firewall? Thanks in advance.

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• Host name change breaking http? Fedora

  - by Dave

  OK so I have been messing around on my development server. It has been a while since I have had my head in linux and I suspect I have broken something. I have SSH running and that is working fine. I also have HTTP and I had FTP running also. Earlier today I decided I wanted to rename the machine so I updated the /etc/hosts file and /etc/sysconfig/network. I also changed the server name in the httpd.conf. I rebooted the machine and reconnected to SSH fine. Later I was messing around with the FTP service (trying to tighten up the user security) and when i tried to connect remotely to FTP no joy, it said cannot connect. I thought that was weird but had planned to remove ftp as we will be using github so removed ftp and moved on. Then I tried to connect to the website but major fail. even connecting to the IP address is failing. I used lynx to connect to the localhost and there was my site so something going on at server level. I thought maybe something up with iptables but I have not changed them but tried adding http but still no joy. I have a - Fedora release 17 (Beefy Miracle) NAME=Fedora VERSION="17 (Beefy Miracle)" ID=fedora VERSION_ID=17 PRETTY_NAME="Fedora 17 (Beefy Miracle)" ANSI_COLOR="0;34" CPE_NAME="cpe:/o:fedoraproject:fedora:17" Fedora release 17 (Beefy Miracle) Fedora release 17 (Beefy Miracle) Linux version 3.3.4-5.fc17.x86_64 ([email protected]) (gcc version 4.7.0 20120504 (Red Hat 4.7.0-4) (GCC) ) #1 SMP Mon May 7 17:29:34 UTC 2012 This is my iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED ACCEPT icmp -- anywhere anywhere ACCEPT all -- anywhere anywhere ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:ssh REJECT all -- anywhere anywhere reject-with icmp-host-prohibited Chain FORWARD (policy ACCEPT) target prot opt source destination REJECT all -- anywhere anywhere reject-with icmp-host-prohibited Chain OUTPUT (policy ACCEPT) target prot opt source destination Like I say I can use SSH no issue but http although running is a no go from a remote computer. Any ideas?

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• Can't connect remotely to Windows Server 2008 R2

  - by JohnyD

  I have a new Dell R710 server running Windows Server 2008 R2. I one of it's 4 nic's set up and the rest are not being used. I have successfully given it an ip address, network mask, and dns servers. I can ping and resolve this machine from anywhere else in the network. However, when I try to connect to it via RDP it does several things: 1) it might just outright refuse me with the message, "This computer can't connect to the remote computer. Try connecting again." 2) it might connect me and let me chose the account I would like to log on as... but when you select an account then you receive the same message as in #1 3) it might actually allow you to connect but only for about 1 minute and then you receive the same message and it closes your session. I have configured the firewall service to allow for RDP over the domain network connection. This didn't have any noticible effect. I have now disabled the firewall for all 3 networks and have even stopped the Windows Firewall service. I am still having the same issue. I am new to Server 2008 R2 and things are very different. Please give me any advice you can on how to resolve this issue and/or any other gotchas that are sure to come my way. The 2003 - 2008 learning curve seems steep. Thanks

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• Can't access one directory via HTTPS + public FQDN

  - by Justin James

  Hello - I have the strangest IIS error that I've ever seen in my life. I have an application/directory on an IIS server, that throws an error 500 when accessing ANY of the content in it, including HTML documents, when accessed via HTTPS AND the machines FQDN. When I access it with "localhost" it works fine. When I added a bogus entry for the NIC's IP in the hosts file, it worked fine. When I access it with the machines name and HTTP it works fine. Here's a chart (the machine's name is "lofn.titaniumcrowbar.com"): http - lofn.titaniumcrowbar.com: works https - lofn.titaniumcrowbar.com: broken https - localhost: works https - temp.titaniumcrowbar.com (put into hosts file): works I set up tracing, and I got some useless information: "The I/O operation has been aborted because of either a thread exit or an application request. (0x800703e3)" This would make sense, except this happens when pulling up static content. While the directory may be an "application", the content is all static in it. Any/all suggestions, no matter how strange, are VERY appreciated. Thanks! J.Ja

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• How is it possible that I can do a host lookup but not a curl?

  - by Daniel Quinn

  Has anyone ever seen this before? Note that this happens not only with google.com, but with every domain I try. It's a wireless connection (WEP), but I'm not sure how that would be relevant: $ curl -v google.com # This takes about 60s to return * getaddrinfo(3) failed for google.com:80 * Couldn't resolve host 'google.com' * Closing connection #0 curl: (6) Couldn't resolve host 'google.com' $ host google.com google.com has address 209.85.148.106 google.com has address 209.85.148.147 google.com has address 209.85.148.99 google.com has address 209.85.148.103 google.com has address 209.85.148.104 google.com has address 209.85.148.105 google.com mail is handled by 30 alt2.aspmx.l.google.com. google.com mail is handled by 40 alt3.aspmx.l.google.com. google.com mail is handled by 50 alt4.aspmx.l.google.com. google.com mail is handled by 10 aspmx.l.google.com. google.com mail is handled by 20 alt1.aspmx.l.google.com. $ cat /etc/resolv.conf # Generated by NetworkManager nameserver 192.168.1.201 $ cat /etc/hosts 127.0.0.1 localhost ::1 localhost $ netstat -rn Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 0.0.0.0 192.168.1.254 0.0.0.0 UG 0 0 0 wlan0 127.0.0.0 127.0.0.1 255.0.0.0 UG 0 0 0 lo 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0

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• Ubuntu 12.04 open port 80 inside WLAN

  - by Eduard

  I have an nginx server running on ubuntu 12.04 that serves http through port 80 and https through port 443. Everything works fine if I access it from the same computer via localhost, 127.0.0.1 or the local IP 192.168.0.11. If I try to access the server from another computer in the same VLAN it does not work for http; it works for https. I have changed my nginx configuration to also listen to port 8000 for http; I can then access http from the other computer in the same VLAN via "http://192.168.0.11:8000". I also have a web server running on port 80 on a windows machine and can access it from another device in the same VLAN, therefore the router is not blocking incoming http traffic. The nginx process is run by root. I have used tcpdump and I see that packets are arriving to Ubuntu: 192.168.0.16.49735 192.168.0.11.80 and that some response is being given 192.168.0.11.80 192.168.0.16.49735 (I do not know what the response is though). There is no request arriving at the nginx web server (I have checked the access log). I have iptables empty. I have unsuccessfully tried to find a solution for a long time to this, it has now become a matter of happiness or bitterness :).

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• For enabling SSL for a single domain on a server with muliple vhosts, will this configuration work?

  - by user1322092

  I just purchased an SSL certificate to secure/enable only ONE domain on a server with multiple vhosts. I plan on configuring as shown below (non SNI). In addition, I still want to access phpMyAdmin, securely, via my server's IP address. Will the below configuration work? I have only one shot to get this working in production. Are there any redundant settings? ---apache ssl.conf file--- Listen 443 SSLCertificateFile /home/web/certs/domain1.public.crt SSLCertificateKeyFile /home/web/certs/domain1.private.key SSLCertificateChainFile /home/web/certs/domain1.intermediate.crt ---apache httpd.conf file---- ... DocumentRoot "/var/www/html" #currently exists ... NameVirtualHost *:443 #new - is this really needed if "Listen 443" is in ssl.conf??? ... #below vhost currently exists, the domain I wish t enable SSL) <VirtualHost *:80> ServerAdmin [email protected] ServerName domain1.com ServerAlias 173.XXX.XXX.XXX DocumentRoot /home/web/public_html/domain1.com/public </VirtualHost> #below vhost currently exists. <VirtualHost *:80> ServerName domain2.com ServerAlias www.domain2.com DocumentRoot /home/web/public_html/domain2.com/public </VirtualHost> #new -I plan on adding this vhost block to enable ssl for domain1.com! <VirtualHost *:443> ServerAdmin [email protected] ServerName www.domain1.com ServerAlias 173.203.127.20 SSLEngine on SSLProtocol all SSLCertificateFile /home/web/certs/domain1.public.crt SSLCertificateKeyFile /home/web/certs/domain1.private.key SSLCACertificateFile /home/web/certs/domain1.intermediate.crt DocumentRoot /home/web/public_html/domain1.com/public </VirtualHost> As previously mentioned, I want to be able to access phpmyadmin via "https://173.XXX.XXX.XXX/hiddenfolder/phpmyadmin" which is stored under "var/www/html/hiddenfolder"

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