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• Cheapest iSCSI SAN for Windows 2008/SQL Server clustering?

  - by MichaelGG

  Are there any production-quality iSCSI SANs suitable for use with Windows Server 2008/SQL Server for failover clustering? So far, I've only seen Dell's MD3000i, and HP's MSA 2000 (2012i), which both are around $6K with a minimal disk configuration. Buffalo (yea, I know), has a $1000 device with iSCSI support, but they say it will not work for 2008 failover clustering. I'm interested in seeing something suitable for failover in a production environment, but with very low IO requirements. (Clustering, say, a 30GB DB.) As for using software: On Windows, StarWind seems to have a great solution. But it's actually more money than buying a hardware SAN. (As I understand, only the enterprise edition supports having replicas, and that's $3000 a license.) I was thinking I could use Linux, something like DRBD + an iSCSI target would be fine. However, I haven't seen any free or low-cost iSCSI software that supports SCSI-3 persistent reservations, which Windows 2008 needs for failover clustering. I know $6K isn't much at all, just curious to see if there are practical cheaper solutions out there. And finally, yes, the software is expensive, but many small business get MS BizSpark, so the Windows 2008 Enterprise / SQL 2008 licenses are completely free.

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• Xen networking is inconsistent in multiple ways

  - by WildVelociraptor

  I've been running xen for a few weeks now on an Ubuntu 12.04 server. I've got 3 guests: a Windows Server 2003 guest, an Ubuntu guest, and a Windows 7 Guest. My Server 2003 guest seems to work fine; I can ping it from the network, the hostname resolves correctly, and it can see the internet. This guest is attached to xenbr0, and its IP is 10.100.1.21. My Win7 guest is what is driving me crazy. I use the same configuration script as a base, changing the important parts (hostname and boot disk, mainly). It installed correctly, and is currently running, but I am unable to ping this guest. It's hostname is "alexander", with an IP of 10.100.1.22. It is also using xenbr0. The guest can ping the firewall and various IP addressess, but seems unable to resolve hostnames. Now heres the weird part: when I use rdesktop (RDP client) from my laptop (not the xen host) to connect to alexander, it works just fine. It apparently resolves the hostname fine, and does the same with the IP address. So, can someone tell me why I can access this guest using RDP, but not using ping, nslookup, traceroute, etc? It's apparently invisible to all but RDP. Also, is it okay to use two guests on the same bridge, or do i need different ones for each guest? Thanks in advance for any help. Regards

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• Static file serving only works if root is a subfolder under public

  - by lulalala

  I am trying to serve static cache files using nginx. There are index.html files under the rails_root/public/cache directory. I tried the following configuration first, which doesn't work: root <%= current_path %>/public; # $uri always contains one slash(the first slash but not the last) try_files /cache$uri/index.html /cache$uri.html @rails; This give error: [error] 4056#0: *13503414 directory index of "(...)current/public/" is forbidden, request: "GET / HTTP/1.1" I then tried root <%= current_path %>/public/cache; # $uri always contains one slash(the first slash but not the last) try_files $uri/index.html $uri.html @rails; And to my surprise this works. Why is it that I can do the latter not the former( since they point to the same location) The permissions of the folders are: 775 public 755 cache 644 index.html The thing is that my favicon sitting under public/ is served correctly: # asset server server { listen 80; server_name assets.<%= server_name %>; expires max; add_header Cache-Control public; charset utf-8; root <%= current_path %>/public; }

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• Is it possible to get CCM Updates Schedule using Powershel or VBScript?

  - by frogman

  I want to be able to check the CCM Updates Schedule as seen in Configuration Manager Updates tab. I've been looking around on google and I've not been able to find a consistent answer to this. I tried to create a COM object using UDA.CCMUpdatesDeployment. This allows me to successfully set the recurring schedule with SetUserDefinedSchedule method. If I try to use GetUserDefinedSchedule I only get the original values of the variables. PS> $UD = New-Object -com "UDA.CCMUpdatesDeployment" PS> $A= 101 PS> $B= 102 PS> $UD.GetUserDefinedSchedule([ref]$A, [ref]$B) PS> $A 101 PS> $B 102 PS> $UD.GetUserDefinedSchedule MemberType : Method OverloadDefinitions : {void GetUserDefinedSchedule (Variant, Variant)} TypeNameOfValue : System.Management.Automation.PSMethod Value : void GetUserDefinedSchedule (Variant, Variant) Name : GetUserDefinedSchedule IsInstance : True I actually want to be able to do this remotely for a list of servers in a text file but right now any way would do.

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• NAT ports - how do they work?

  - by Davidoper

  I have the following network schema: Computer A: three nics: NIC 1 (eth0): dhcp, public internet NIC 2 (eth1): static 192.168.1.1, gateway for Computer B NIC 3 (eth2): static 192.168.2.1, gateway for Computer C Computer B: static 192.168.1.2, using gateway 192.168.1.1 (NIC 2). Computer C: static 192.168.2.2, using gateway 192.168.2.1 (NIC 3). So I applied this to get NAT working: iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE Every computer can connect to the internet now. I have been applying rules to the main computer (Computer A), like dropping connections to some ports, e.g ssh: iptables -A INPUT -p tcp --dport 22 -j DROP But for instance, now I would like only allow connections for ports 20,21,22,53 and 80 in Computer C, and ignore the outside traffic if it's not related to those ports. The allowed connections should be FROM Computer C to outside, but not from outside to Computer C (I mean - Computer C is not hosting any HTTP or SSH, but it is going to use them as a client). I guess this sould be done like this: iptables -A OUTPUT -i eth2 -o eth0 -p tcp --dport 21 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A INPUT -i eth2 -o eth0 -p tcp --sport 21 -m state --state ESTABLISHED -j ACCEPT The last rule (dropping any other traffic different from those) is at the end of the configuration, so -A should be working correctly. The thing is... it is not working. If I put the last rule like this: iptables -A FORWARD -i eth2 -o eth0 -j DROP It just drops everything and, for instance, port 21 (previously opened as you can see above) is not either working. Can you tell me what could I have done wrong? I have been struggling with this problem for some time and I am unable to solve it. Thanks!

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• ssh timeout issue connecting to an EC2 instance on OS X

  - by mamusr

  I am new to AWS and not a networking expert but curious to know more about it. I created a VPC with a public subnet only. Then i created an EC2 instance using an Ubuntu 14.04 64-bit pv AMI image (ami-e84d8480) as well generating the key pair needed to connect to it through ssh. I followed amazon's instructions to connect to an EC2 instance via ssh which did not work. Here is my attempted input and debug log: Running on OS X 10.9.4 user$ ssh -vvv -i key.pem [email protected] OpenSSH_6.2p2, OSSLShim 0.9.8r 8 Dec 2011 debug1: Reading configuration data /etc/ssh_config debug1: /etc/ssh_config line 20: Applying options for * debug1: /etc/ssh_config line 102: Applying options for * debug2: ssh_connect: needpriv 0 debug1: Connecting to xxx.xxx.xxx.xxx [xxx.xxx.xxx.xxx] port 22. debug1: connect to address xxx.xxx.xxx.xxx port 22: Operation timed out ssh: connect to host xxx.xxx.xxx.xxx port 22: Operation timed out To attempt to resolve the issue: I enabled the SSH port. Tried different usernames other than ubuntu, like ec2-user and root. Initially set an inbound ssh rule in the security group to connect to only my ip address. When that did not work, i changed it to allow any ip to connect. But those actions did not fix the problem. Here are my guesses as to what i am missing in getting the EC2 instance connection to work. My etc/ssh_config file may be preventing the connection from taking place. I may have missed an important networking detail when setting up the VPC. I do not have a public ip address specified for the instance. I am connecting through the private ip address. My questions for the community: Am i going about it the wrong way connecting to the instance through the private ip address? if so, do i need to specify a public ip address for it to connect or some other method?

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• WT-NMP - PHP-CGI randomly stops running with no error log

  - by alexfontaine

  We have recently installed WT-NMP and are currently running Php-Cgi with php 5.4.24. We are running fairly simple php scripts and when testing everything is running fine. Over the weekend we wanted to keep the server running test it over a longer period of time. The server and scripts ran fine all day on Friday, but sometime late on Saturday, the php-cgi stopped running. There are no errors in the error log (C:\WT-NMP\log). In the configuration (php.ini) I have the following options set: error_reporting = E_ALL display_errors = On display_startup_errors = On log_errors = On html_errors = On error_log = "c:/wt-nmp/log/php_error.log" We also have the standard nginx.conf error logs: access_log "c:/wt-nmp/log/nginx_access.log"; error_log "c:/wt-nmp/log/nginx_error.log" warn; So, since the log directory is empty, I am assuming that the running php scripts and general nginx operations are not causing the php-cgi to stop. So my questions are: What else could cause the php-cgi to stop running? Are there any other options for logging that we could turn on that could help us track this down? Are there other log locations that we should be looking at? Thanks!

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• ServerName not working in Apache2 and Ubuntu

  - by CreativeNotice

  Setting up a dev LAMP server and I wish to allow dynamic subdomains, aka ted.servername.com, bob.servername.com. Here's my sites-active file <VirtualHost *:80> # Admin Email, Server Name, Aliases ServerAdmin [email protected] ServerName happyslice.net ServerAlias *.happyslice.net # Index file and Document Root DirectoryIndex index.html DocumentRoot /home/sysadmin/public_html/happyslice.net/public # Custom Log file locations LogLevel warn ErrorLog /home/sysadmin/public_html/happyslice.net/log/error.log CustomLog /home/sysadmin/public_html/happyslice.net/log/access.log combined And here's the output from sudo apache2ctl -S VirtualHost configuration: wildcard NameVirtualHosts and default servers: *:80 is a NameVirtualHost default server happyslice.net (/etc/apache2/sites-enabled/000-default:1) port 80 namevhost happyslice.net (/etc/apache2/sites-enabled/000-default:1) port 80 namevhost happyslice.net (/etc/apache2/sites-enabled/happyslice.net:5) Syntax OK The server hostname is srv.happyslice.net. As you can see from apache2ctl when I use happyslice.net I get the default virtual host, when I use a subdomain, I get the happyslice.net host. So the later is working how I want, but the main url does not. I've tried all kinds of variations here, but it appears that ServerName just isn't being tied to the correct location. Thoughts? I'm stumped. FYI, I'm running Apache2.1 and Ubuntu 10.04 LTS

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• Is it possible to setup an internal test email server to keep all mail sent to it?

  - by MattGrommes

  We have a need at my work to setup a test email server that will take all mail sent to it for delivery and instead just dump it into an account for later retrieval. I've been out of the email server configuration game long enough that I think that's possible but I don't know for sure. As a more specific example of what we need: We have code that sends emails to outside clients in certain cases. We want to point our code to a test server that will accept those emails, but not let them get to the outside world (yes, it's happened before, oops). We then need to be able to verify that Email X would have gotten sent to Client Y if we had sent to the real server. As a bonus, we have a error email alias on our real server that goes to the programmers that we would like to keep getting email from. So anything sent to that alias on the test server would forward to our real server for delivery. My preference is for postfix but our IT staff seems set on using sendmail (or Exchange) for everything so hints/pointers for either server would be helpful. Thanks a lot.

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• Monit - script not being executed as expected

  - by Thaís

  I'm working on a Windows 7 machine, having a VM for Ubuntu (image disk: 12.04-desktop-i386.iso). On the VM I installed Monit 5.3.2, and configured some processes and applications. So I created a script to run my application. This application should display some content on the screen (Im basically displaying two images, using Feh). The thing is: if I call my script through the command line, it runs ok, and display the images. But if I run through monit, it seems to be running ok, but it doesn't display the images.In the case I try to debug it (remote debug), then I can see the images. So I was supposing this could be some kind of configuration, but didn't find out what (even using the option -I wou'ldn't work). I"m showing below more details: -Piece of script on Monit---- check program runMediaHandler with path "/usr/bin/runMediaHandler.sh" if status == 1 then alert -runMediaHandler.sh ---- #!/bin/bash java -jar /home/thais/Desktop/MediaHandler_RC2.jar Summarizing: 1.What works: if I run java directly: java -jar /home/thais/Desktop/MediaHandler_RC2.jar if I run the script directly: runMediaHandler.sh if I remote debug putting a breakpoint where the image should be displayed 2.What does not work: putting that piece of information on Monit to "check program", writen above (even if calling monit -I start runMediaHandler) Thank you in advance, Thaís

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• Apache 403 after configuring varnish

  - by w0rldart

  I just don't know where else to look and what else to do. I keep getting a 403 error on all my vhosts after setting varnish 3.0 Apacher log: [error] [client 127.0.0.1] client denied by server configuration: /etc/apache2/htdocs Headers: http://domain.com/ GET / HTTP/1.1 Host: domain.com User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/20100101 Firefox/16.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate DNT: 1 Connection: keep-alive Cookie: __utma=106762181.277908140.1348005089.1354040972.1354058508.6; __utmz=106762181.1348005089.1.1.utmcsr=OTHERDOMAIN.com|utmccn=(referral)|utmcmd=referral|utmcct=/galerias/cocinas Cache-Control: max-age=0 HTTP/1.1 403 Forbidden Vary: Accept-Encoding Content-Encoding: gzip Content-Type: text/html; charset=iso-8859-1 X-Cacheable: YES Content-Length: 223 Accept-Ranges: bytes Date: Sat, 01 Dec 2012 20:35:14 GMT X-Varnish: 1030961813 1030961811 Age: 26 Via: 1.1 varnish Connection: keep-alive X-Cache: HIT ---------------------------------------------------------- /etc/default/varnish: DAEMON_OPTS="-a ip.ip.ip.ip:80 \ -T localhost:6082 \ -f /etc/varnish/main.domain.vcl \ -S /etc/varnish/secret \ -s file,/var/lib/varnish/$INSTANCE/varnish_storage.bin,1G" #-s malloc,256m" My vcl file: http://pastebin.com/axJ57kD8 So, any ideas what I could be missing? Update Just so you know, ports: NameVirtualHost *:8000 Listen 8000 and <VirtualHost 205.13.12.12:8000>

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• Mod_rewrite (CakePHP routing functionality) forbidden after Snow Leopard upgrade

  - by Ryan Ballantyne

  Hello ServerFault, I am using the standard Apple-provided installations of PHP 5.3 and Apache 2 to do web development on a Mac Pro that I just upgraded to Mac OS X 10.6 (Snow Leopard). The upgrade went well enough, if I ignore the fact that it destroyed my ability to get work done. ;) After the update, the CakePHP application I was developing started giving me 403 Forbidden errors when accessed. Based on the errors in the log file, I've determined that Apache is choking on the mod_rewrite rules in Cake's .htaccess file. Here's the file, in its entirety: <IfModule mod_rewrite.c> RewriteEngine on RewriteRule ^$ app/webroot/ [L] RewriteRule (.*) app/webroot/$1 [L] </IfModule> It's not that the rules themselves are wrong, but that Apache is forbidding the use of mod_rewrite altogether. All other pages on the machine work fine, and the 403 errors go away if I comment out the .htaccess file (but nothing works, of course). In my httpd.conf file, I've tried changing this: <Directory /> Options FollowSymLinks AllowOverride None Order deny,allow Deny from all </Directory> To this: <Directory /> Options FollowSymLinks AllowOverride All Order deny,allow Allow from all </Directory> ...which has no effect. I don't know much about Apache configuration files, and I'm quite stuck on this. In fact, I know little enough that I'm not sure which information about my setup is needed to enable people to provide useful answers. I'm just using the vanilla OS X setup, nothing fancy. Googling has yielded no fruits for me this time, so I'm turning to you. Any ideas?

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• exim4 redirect mail sent to *@domain1.example.com to *@domain2.example.com

  - by nightcoder

  Current situation: We have a VPS that hosts a website example.org. Exim is configured to work as a smarthost. All emails sent through exim are successfully relayed to another mail server (that is working on example.com). Goal: To forward mail sent to *@example.org to *@example.com, i.e. change the recipient's address from *@example.org to *@example.com. Problem: If I send email to address *@example.org, then it seems exim doesn't change the address, it still relays the message to another mail server but recipient is still *@example.org. Maybe the redirect is not applied for some reason. Configuration and logs: /etc/exim4/update-exim4.conf.conf: dc_eximconfig_configtype='smarthost' dc_other_hostnames='' dc_local_interfaces='' dc_readhost='example.org' dc_relay_domains='example.org' dc_minimaldns='false' dc_relay_nets='0.0.0.0/32' dc_smarthost='example.com::26' CFILEMODE='644' dc_use_split_config='false' dc_hide_mailname='true' dc_mailname_in_oh='true' dc_localdelivery='maildir_home' /etc/exim4/conf.d/router/999_exim4-config_redirect (created by me): domain_redirect: debug_print = "R: forward for $local_part@$domain" driver = redirect domains = example.org data = [email protected] (for now data is set to a specific address for simplicity and testing) exim log when sending email to [email protected] (should be redirected to [email protected]): 2012-03-20 19:40:07 1SA4ud-0005Dw-7k <= [email protected] U=www-data P=local S=657 2012-03-20 19:40:08 1SA4ud-0005Dw-7k => [email protected] R=smarthost T=remote_smtp_smarthost H=domain2.com [184.172.146.66] X=TLS1.0:RSA_AES_256_CBC_SHA1:32 DN="C=US,2.5.4.17=#13053737303932,ST=TX,L=Houston,STREET=Suite 400,STREET=11251 Northwest Freeway,O=HostGator.com,OU=HostGator.com,OU=Comodo PremiumSSL Wildcard,CN=*.hostgator.com" 2012-03-20 19:40:08 1SA4ud-0005Dw-7k Completed So, the address is not changed :( Please help! I'm trying to make it work for half a day already :(

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• Login failed for user 'XXX' on the mirrored sql server

  - by hp17

  We have 4 web servers that host our asp.net (3.5) application. Randomly, we get error messages like : 1) "Login failed for user 'userid'" 2) "A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)" we are running sql2005 and have a principle and a mirror db (sync). When these exceptions are thrown, I look at the SQL error logs on the mirrored db and noticed the failed login messages in there. The principle db is running fine and the other web apps are working great. this will happen for maybe 10 min, then the app pool recycles and it starts hitting the principle db again. Is there a configuration I have incorrect? my theory is that our principle db is forwarding the request to the mirror, but that should never happen. any help??

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• Tomcat web application intermittent freeze

  - by tinny

  I have a Grails web application (just a standard war file) deployed on a Ubuntu 10.10 server running on tomcat 6. My database is postgresql. The problem is that every so often (once or twice a day after inactivity) when I try to log into this web application it just freezes. I can navigate to the login page but when I try and login (first time the DB is hit, might be a clue..?) the application just freezes indefinitely, no 500 response code... the browser just waits and waits. I followed the instructions detailed here because the problem described sounded the same as mine. My GC logging showed no long running GC, all sub sec. When the application freezes a jmap heap output is... using parallel threads in the new generation. using thread-local object allocation. Concurrent Mark-Sweep GC Heap Configuration: MinHeapFreeRatio = 40 MaxHeapFreeRatio = 70 MaxHeapSize = 536870912 (512.0MB) NewSize = 21757952 (20.75MB) MaxNewSize = 87228416 (83.1875MB) OldSize = 65404928 (62.375MB) NewRatio = 7 SurvivorRatio = 8 PermSize = 21757952 (20.75MB) MaxPermSize = 85983232 (82.0MB) Heap Usage: New Generation (Eden + 1 Survivor Space): capacity = 19595264 (18.6875MB) used = 11411976 (10.883308410644531MB) free = 8183288 (7.804191589355469MB) 58.23843965562291% used Eden Space: capacity = 17432576 (16.625MB) used = 9249296 (8.820816040039062MB) free = 8183280 (7.8041839599609375MB) 53.05754009046053% used From Space: capacity = 2162688 (2.0625MB) used = 2162680 (2.0624923706054688MB) free = 8 (7.62939453125E-6MB) 99.99963008996212% used To Space: capacity = 2162688 (2.0625MB) used = 0 (0.0MB) free = 2162688 (2.0625MB) 0.0% used concurrent mark-sweep generation: capacity = 101556224 (96.8515625MB) used = 83906080 (80.01907348632812MB) free = 17650144 (16.832489013671875MB) 82.62032270912317% used Perm Generation: capacity = 85983232 (82.0MB) used = 62866832 (59.95448303222656MB) free = 23116400 (22.045516967773438MB) 73.1152232100324% used Anyone know what "From Space:" is? Any ideas on further fault finding ideas? I dont have much experience with this type of fault finding.

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• ssh connection slow when using @hostname.com but now when using @ipaddress

  - by Alex Recarey

  When connecting to a Debian server using ssh, if I use [email protected] (the IP address of hte server) the connection is instant. If however I use [email protected] (a DNS redirected to the IP address of the server) the ssh connection hangs for a 20 seconds before connecting successfully. The ssh logs show the following: [alex@alex home]$ ssh -v -v [email protected] OpenSSH_5.5p1, OpenSSL 1.0.0c-fips 2 Dec 2010 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug2: ssh_connect: needpriv 0 and here it hangs during 20 seconds before continuing. I think it might have something to do with reverse DNS or similar (the server does not really "know" it's name is hostname.com, it just has that DNS rediriected to its IP address). I have added the following options to /etc/ssh/sshd_config: UseDNS no GSSAPIAuthentication no to no effect. The server's DNS records in /etc/resolv.conf are configured correctly: ping hostname.com PING sub.domain.com (X.X.X.X) 56(84) bytes of data. 64 bytes from replicant (X.X.X.X): icmp_seq=1 ttl=64 time=0.029 ms 64 bytes from replicant (X.X.X.X): icmp_seq=2 ttl=64 time=0.050 ms?s Thanks for the help. Solution: It seems the DSL router my ISP saddled me with was causing the trouble. Changing my DNS server from 192.168.1.1 (router's IP) to google's (8.8.8.8, always good to know when you are in a hurry) instantly solved the connection delay problem. I am guessing that the 50€ router provided does not cache DNS entries, although I don't understand why pinging the DNS address had no delay, and 20 seconds is too long of a wait, even for uncached DNS. Tnanks again for the help!

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• Email test deferred (mail transport unavailable) with ClamAV

  - by dirt

  I'm trying to set up a simple new mail server; when I send a test email to the server the email is getting hung up during delivery (user mapping is found) and the email is never found in /home/user/Maildir/new Here is my maillog after a fresh reboot and test email, there are a few warnings I am unfamiliar with. Can you please point me in the right direction? Oct 25 14:54:57 loki dovecot: master: Dovecot v2.0.9 starting up (core dumps disabled) Oct 25 14:54:58 loki postfix/postfix-script[1369]: starting the Postfix mail system Oct 25 14:54:58 loki postfix/master[1370]: daemon started -- version 2.6.6, configuration /etc/postfix Oct 25 14:56:00 loki postfix/tlsmgr[1457]: warning: request to update table btree:/etc/postfix/smtpd_scache in non-postfix directory /etc/postfix Oct 25 14:56:00 loki postfix/tlsmgr[1457]: warning: redirecting the request to postfix-owned data_directory /var/lib/postfix Oct 25 14:56:00 loki postfix/smtpd[1455]: connect from mail-ob0-f180.google.com[209.85.214.180] Oct 25 14:56:01 loki postfix/smtpd[1455]: 1CF5E20A8B: client=mail-ob0-f180.google.com[209.85.214.180] Oct 25 14:56:01 loki postfix/cleanup[1461]: 1CF5E20A8B: message-id= Oct 25 14:56:01 loki postfix/qmgr[1379]: 1CF5E20A8B: from=, size=1788, nrcpt=1 (queue active) Oct 25 14:56:01 loki postfix/qmgr[1379]: warning: connect to transport private/scan: No such file or directory Oct 25 14:56:01 loki postfix/error[1462]: 1CF5E20A8B: to=, orig_to=, relay=none, delay=0.18, delays=0.15/0.02/0/0.01, dsn=4.3.0, status=deferred (mail transport unavailable) Oct 25 14:56:01 loki postfix/smtpd[1455]: disconnect from mail-ob0-f180.google.com[209.85.214.180] master.cf snippets: # ========================================================================== # service type private unpriv chroot wakeup maxproc command + args # (yes) (yes) (yes) (never) (100) # ========================================================================== smtp inet n - n - - smtpd submission inet n - n - - smtpd -o smtpd_tls_security_level=encrypt # -o smtpd_sasl_auth_enable=yes # -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING smtps inet n - n - - smtpd -o smtpd_tls_wrappermode=yes # -o smtpd_sasl_auth_enable=yes # -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING scan unix - - n - 16 smtp -o smtp_data_done_timeout=1200 -o smtp_send_xforward_command=yes -o disable_dns_lookups=yes 127.0.0.1:10026 inet n - n - 16 smtpd -o content_filter= -o local_recipient_maps= -o relay_recipient_maps= -o smtpd_restriction_classes= -o smtpd_client_restrictions= -o smtpd_helo_restrictions= -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,reject -o mynetworks_style=host -o smtpd_authorized_xforward_hosts=127.0.0.0/8

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• Apache debugging: where to find error logs?

  - by AP257

  I'm new to Apache and web serving generally, so apologies if this is a very stupid question. I want to configure a new sub-domain on a working site and install a forum there. I'm using a Debian server that already has Apache, mod_wsgi and a bunch of virtual hosts successfully running on it. I first installed my forum app (Django's OSQA). Following the OSQA instructions, I then created an Apache config file that specified ServerName as the new sub-domain. I also created a .wsgi file for the app, and pointed WSGIScriptAlias at it. I then restarted Apache. However, when I go to the new sub-domain, I get a 404 error message. Two questions: Is there a step missing above? Or is simply creating a new Apache config file in sites-available enough to 'tell' Apache about a new sub-domain? If there's something else going wrong, how can I debug it? The ErrorLog and CustomLog specified in the config file are both blank. apache2.conf, which I guess is Apache-wide configuration, specifies ErrorLog /var/log/apache2/error.log, but this is yet another blank file.

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• ULogd2.x - Documents - IPFIX data generation

  - by Gomathivinayagam

  I would like to generate IPFIX data from the packets that are coming to my local system as part of experimentation. It seems ULogd is a good tool to do that. I am able to capture PCAP data. But there are very less documents available on ULogd2.x about IPFIX format data generation.(There are very few examples provided in ulogd.conf). Can you provide me any links that describes about how to generate IPFIX data using ulogd2.x? 1) What are the options available? I saw there is polling interval configuration. But I have no idea how does it work? 2) If I set hash_enable = 0, and uncomment the polling_interval value, I'm getting an exception as NFCT plugin requires hash table, evne though I have specified hash_buckets and hash_max_entries. Could you help on this? 3) In general, I would like to know how NFCT plugin works in ulogd2.x. I sent mail to ulogd mailing list, but there are no replies. Could you shed some light?

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• nginx not serving admin static files?

  - by toto_tico

  First, I want to clarify that this error is just for the admin static files. This means my problem is specific just to the static files that corresponds to the Django admin. The rest of the static files are working perfect. Basically my problem is that for some reason I cannot access those admin static files with the ngix server. It works perfect with the micro server of Django and the collect static is doing its job. This means it is putting the files on the expected place in the static folder. The urls are correct but I cannot even access the admin static files directly, but the others I can. So, for example, I am able to access this url (copying it in the browser): myserver.com:8080/static/css/base/base.css but i am not able to access this other url (copying it in the browser): myserver.com:8080/static/admin/css/admin.css I also tried to copy the admin/ directory structure into other_admin_directory_name/. Then I can access myserver.com:8080/static/other_admin_directory_name/css/admin.css Then, it works. So, I checked permissions and everything is fine. I tried to change ADMIN_MEDIA_PREFIX = '/static/admin/' to ADMIN_MEDIA_PREFIX = '/static/other_admin_directory_name/', it doesn't work. This a mistery in itself that I am exploring but still no luck. Finally, and it seems to be an important clue: I tried to copy the admin/ directory structure into admin_and_then_any_suffix/. Then I cannot access myserver.com:8080/static/admin_and_then_any_suffix//css/admin.css So, if the name of the directory starts with admin (for example administration or admin2) it doesn't work. * added thanks to sarnold observation ** the problem seems to be in the nginx configuration file /etc/nginx/sites-available/mysite location /static/admin { alias /home/vl3/.virtualenvs/vl3/lib/python2.7/site-packages/django/contrib/admin/media/; }

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• ffmpeg rotate mp4 90º

  - by shox

  Hi, can I rotate(+save / reencode) a .mp4 with ffmpeg? The only thing I found was on the mailinglist saying -vfilters "rotate=90" but ffmpeg says no vfilters. Tried -vf, it says there is no rotate. If I try to do it in VLC it simply does not rotate and kills the audio (did the vlc encoding EVER work? Every single freakin video I throw at it gets fu****d up in some way -_- ) I'm on a MAC and don't have iWork. Any ideas? Thanks FFmpeg version git-svn-r23607, Copyright (c) 2000-2010 the FFmpeg developers built on Jun 14 2010 23:52:55 with gcc 4.2.1 (Apple Inc. build 5659) configuration: libavutil 50.19. 0 / 50.19. 0 libavcodec 52.76. 0 / 52.76. 0 libavformat 52.68. 0 / 52.68. 0 libavdevice 52. 2. 0 / 52. 2. 0 libavfilter 1.20. 0 / 1.20. 0 libswscale 0.11. 0 / 0.11. 0 Hyper fast Audio and Video encoder

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• Windows XP - Power surge on hub port

  - by Swift-Tuttle

  Since last few weeks I constantly get this error, as status bar balloon: Power Surge on Hub Port - A USB device has exceeded the power limits of its hub port. Due to this now I am unable to access any USB devices properly, they get disconnected intermittently. I did quite a few things to resolve this problem, firstly obviously through the Windows help. I even tried all the things told on the Microsoft website(which essentially says is to check and update the driver) but in vain. One suggestion, I found when I google'd was to disable the USB2 controller through the Device Manager and since at every startup the System configuration comes up complaining that it has been changed etc.(On that same site it is mentioned to ignore this message.) But after everything I still cant solve this problem. Any help is much appreciated. The system is installed with Windows XP service Pack 3 and all the updates till last month. Please let me know if any other hardware info is required. **UPDATE** My laptop is about 5 years old now, its an HP with Celeron 1.4G processor. Windows XP SP3 installed. All latest windows updates installed. 2 USB ports available. BIOS is HP 68DTD ver F.0A Do I need to update my BIOS from somewhere ? or is this a hardware problem altogether?

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• Apache 2 proxy for Tomcat 7

  - by hsnm

  Following the how-to, I wanted to make a proxy for traffic to the address /app to be processed by Tomcat 7. I added this to my httpd.conf: LoadModule proxy_module {path-to-modules}/mod_proxy.so LoadModule deflate_module modules/mod_deflate.so ProxyPass /app http://localhost:8081 ProxyPassReverse /app http://localhost:8081 I also have this on my server.xml: <Connector port="8081" enableLookups="false" acceptCount="100" connectionTimeout="20000" proxyName="localhost" proxyPort="80"/> And I have the folder /var/lib/tomcat7/webapps/app with my application files. I restarted both Tomcat 7 and Apache 2 after doing the configurations above. Problem: When navigating to my webpage.com/app, I get the error 500. I consulted apache logs, it says: [warn] proxy: No protocol handler was valid for the URL /app. If you are using a DSO version of mod_proxy, make sure the proxy submodules are included in the configuration using LoadModule. Update: This is running in ubuntu. I resolved this by adding LoadModule proxy_http_module modules/mod_proxy_http.so to my httpd.conf. Now I have another question: How can I make this proxy to work on SSL through port 443?

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• Is there a small business router that shows bandwidth usage graphs in the admin panel?

  - by Robert Drake

  I support a large number of public libraries that are having their networks upgraded in response to a grant application. These libraries are generally home to between 6-15 computers and have little or no tech services either onsite or contracted remotely. In order to justify current and future purchases, a number of the libraries have requested routers that can provide bandwidth usage graphs that they can show to their managing boards. Is there a small business router that displays traffic graphs in the router administration web interface? The router needs to suppport DHCP and basic firewalling. No other features are required. Further, the reports just need to show overall trends. It is not necessary to show traffic by IP, by protocol/application, or by time of day. They just need an overall week to week, month to month, trend line. I'm familiar with MRTG/PRTG/tools that collect SNMP data from the router, but the libraries don't have the expertise for the configuration. I've considered installing the tomato firmware on some cheap home/home office routers, but if there's a commercial product that can be purchased that would be significantly simpler. Also the library boards would be much more likely to approve the purchase of a commercial product over a 'hacked' one. Any assistance would be appreciated.

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• New XPC: No video, no ethernet link, but drive spins

  - by Mike Pennington

  I bought a Shuttle XPC SH67H3 with integrated video. I installed: An Intel i5 2450P 16GB DDR3 RAM A SATA hard drive from my old linux server that still is bootable I have both power connectors plugged into the motherboard. I realize that the Intel i5-2450P doesn't have video capabilities; however, the drive spins like it's doing something useful. It seems like I should get an ethernet link light when I fire this up. I plan to run this headless anyway, so it would be really nice if I could figure out how to run this without a video card at all. I know the IP address and login info for the linux install on the disk. I plugged in speakers, but get no bios beeps when I power it up. Shuttle's bios manual has nothing in there that indicates I should have problems in this configuration. My questions: Is there a reason that the missing video card would block usage of the ethernet port? Are there settings on the motherboard / bios I can change to get this working?

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