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• I think installing PostFix solved my problem, but it seemed *too* easy

  - by Joel Marcey

  Hi, This is a followup to a serverfault post I made a while ago: http://serverfault.com/questions/21633/how-do-i-target-a-different-mail-server-depending-on-domain-with-exim (More context here too: http://forum.slicehost.com/comments.php?DiscussionID=3806 ) I have a slice/VPS at Slicehost. I basically decided to scrap exim (i.e., purge it), and start anew with my email infrastructure. In case you didn't read any of the above threads, basically my goal was to have a send only mail infrastructure that relays all outgoing email to Google Apps. I also wanted to where email from domain1 (a Wordpress installation) would show it coming from domain1.com and email from domain2 (a normal website) would show it coming from domain2.com. So I decided to give PostFix a try. I literally followed the surprisingly simple instructions here: http://sudhanshuraheja.com/2009/02/slicehost-setup-outgoing-mail-google-apps-postfix/ And voila, all seems to be working as I expected. My email tests show email coming from the proper locations (either domain1 or domain2 depending on where the emails were sent from). But this all seemed too simple to me. So simple, in fact, that I feel that something is amiss. When I installed PostFix according to the instructions in the post above and it worked, I was surprised that I didn't have to specify an SMTP server, a port number, any authentication credentials, etc. My slice is set up such that I have MX records for Google Apps (e.g., ASPMX.L.GOOGLE.COM.) in my DNS settings, but I am not sure if that is why it is working. My email infrastructure knowledge is admittedly limited, but with this am I suspect to: Spammers using my email infrastructure? My emails going to people as spam? Something else sinister? I have actually stopped running PostFix until I understand this better. Thanks!

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• Setup proxy with Apache 2.4 on Mac 10.8

  - by Aptos

  I have 1 application (Java) that running on my local machine (localhost:9000). I want to setup Apache as a front end proxy thus I used following configuration in the httpd.conf: <Directory /> #Options FollowSymLinks Options Indexes FollowSymLinks Includes ExecCGI AllowOverride All Order deny,allow Allow from all </Directory> Listen 57173 LoadModule proxy_module modules/mod_proxy.so <VirtualHost *:9999> ProxyPreserveHost On ServerName project.play ProxyPass / http://127.0.0.1:9000/Login ProxyPassReverse / http://127.0.0.1:9000/Login LogLevel debug </VirtualHost> ServerName localhost:57173 I change my vim /private/etc/hosts to: ## # Host Database # # localhost is used to configure the loopback interface # when the system is booting. Do not change this entry. ## 127.0.0.1 localhost 255.255.255.255 broadcasthost ::1 localhost fe80::1%lo0 localhost 127.0.0.1:9999 project.play and use dscacheutil -flushcache. The problem is that I can only access to localhost:57173, when I tried accessing http://project.play:9999, Chrome returns "Oops! Google Chrome could not find project.play:9999". Can somebody show me where I were wrong? Thank you very much P/S: When accessing localhost:9999 it returns The server made a boo boo.

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• Destination NAT Onto the Same Network from internal clients

  - by mivi

  I have a DSL router which acts as NAT (SNAT & DNAT). I have setup a server on internal network (10.0.0.2 at port 43201). DSL router was configured to "port forward" (or DNAT) all incoming connections to 10.0.0.2:43201. I created a virtual server for port forwarding on DSL router. I also added following iptables rules for port forwarding. iptables -t nat -A PREROUTING -p tcp -i ppp_0_1_32_1 --dport 43201 -j DNAT --to-destination 10.0.0.2:43201 iptables -I FORWARD 1 -p tcp -m state --state NEW,ESTABLISHED,RELATED -d 10.0.0.2 --dport 43201 -j ACCEPT # ppp_0_1_32_1 is routers external interface. # routers internal IP address is 10.0.0.1 and server is setup at 10.0.0.2:43201 Problem is that connections coming from external IP addresses are able to access internal server using External IP address, but internal clients (under NAT) are not able to access server using external IP address. Example: http://<external_address>:43201 is working from external clients But, internal clients are not able to access using http://<external_address>:43201 This seems to be similar to the problem described in http://www.netfilter.org/documentation/HOWTO/NAT-HOWTO-10.html (NAT HOW-TO Destination NAT Onto the Same Network). Firstly, I am not able to understand why is this a problem for internal clients? Secondly, what iptables rule will enable internal clients to access server using external IP address? Please suggest.

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• Use of backreferences in fail2ban filters possible?

  - by Izzy

  From time to time, I see collections of suspect "File not found" errors in my Apache logs, basically using the pattern File does not exist: /var/www/file, referer: http://my.server.com/file In human terms: The file was not found, though it referenced here itself. A clear hacking attempt, as that's hardly possible (and the REQUEST_URIs often enough suggest the same). In my eyes a clear case for fail2ban – if I could get backreferences to work here: failregex = ^%(_apache_error_client)s File does not exist: /var/www(.+), referer: http://.+\1$ (Justin Case: above examples assume the DIRECTORY_ROOT of that webserver being /var/www) I googled for hours, searched the fail2ban wiki up and down – but nowhere I could find a statement concerning backreferences in its filters. Are they not supported, or did I do it the wrong way? Any hints how to make it work (except from "dirty hacks" like first sending the request to another fake url using mod-rewrite, and then catching on that (if anyone is interested, I can elaborate on that approach in an answer), or doing something similar using mod-security)? as an entire log line was requested: [Fri Nov 08 14:57:28 2013] [error] [client 50.67.234.213] File does not exist: /var/www/text/files.htm++++++++++++++++++++++++++Result:+using+proxy+27.34.142.47:9090;+no+post+sending+forms+are+found;, referer: http://www.myserver.com/text/files.htm++++++++++++++++++++++++++Result:+using+proxy+27.34.142.47:9090;+no+post+sending+forms+are+found; (sorry, logs were just switched, so this long candidate was the only one left currently; minor adjustments were made for privacy reasons)

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• 500 Internal Server Error when setting up Apache on localhost

  - by Martin Hoe

  I downloaded and installed XAMPP, and to keep my projects nicely separated I want to create a VirtualHost for each one based on its future domain name. For example, in my first project (we'll say it's project.com) I've put this in my Apache configuration: NameVirtualHost 127.0.0.1 <VirtualHost 127.0.0.1:80> DocumentRoot C:/xampp/htdocs/ ServerName localhost ServerAdmin admin@localhost </VirtualHost> <VirtualHost 127.0.0.1:80> DocumentRoot C:/xampp/htdocs/sub/ ServerName sub.project.com ServerAdmin [email protected] </VirtualHost> <VirtualHost 127.0.0.1:80> DocumentRoot C:/xampp/htdocs/project/ ServerName project.com ServerAdmin [email protected] </VirtualHost> And this in my hosts file: # development 127.0.0.1 localhost 127.0.0.1 project.org 127.0.0.1 sub.project.org When I go to project.com in my browser, the project loads up successfully. Same if I go to sub.project.com. But, if I navigate to: http://project.com/register (one of my site pages) I get this error: Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. The error log shows this: [Sun May 20 02:05:54 2012] [error] [client 127.0.0.1] Request exceeded the limit of 10 internal redirects due to probable configuration error. Use 'LimitInternalRecursion' to increase the limit if necessary. Use 'LogLevel debug' to get a backtrace., referer: http://project.com/ Sun May 20 02:05:54 2012] [error] [client 127.0.0.1] Request exceeded the limit of 10 internal redirects due to probable configuration error. Use 'LimitInternalRecursion' to increase the limit if necessary. Use 'LogLevel debug' to get a backtrace., referer: http://project.com/ Any idea what config items I got wrong or how to get this working? It happens on any page that's not in in the root directory of project.com. Thanks.

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• Redirect before rewrite

  - by Kirk Strobeck

  Had an issue where I need to redirect old URLs, but not disable the mod_rewrite for page structure. redirect 301 /home.html http://www.url.com/ It needs to live on the Symphony 2.0 .htaccess file ### Symphony 2.0.x ### Options +FollowSymlinks -Indexes <IfModule mod_rewrite.c> RewriteEngine on RewriteBase / ### DO NOT APPLY RULES WHEN REQUESTING "favicon.ico" RewriteCond %{REQUEST_FILENAME} favicon.ico [NC] RewriteRule .* - [S=14] ### IMAGE RULES RewriteRule ^image\/(.+\.(jpg|gif|jpeg|png|bmp))$ extensions/jit_image_manipulation/lib/image.php?param=$1 [L,NC] ### CHECK FOR TRAILING SLASH - Will ignore files RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_URI} !/$ RewriteCond %{REQUEST_URI} !(.*)/$ RewriteRule ^(.*)$ $1/ [L,R=301] ### ADMIN REWRITE RewriteRule ^symphony\/?$ index.php?mode=administration&%{QUERY_STRING} [NC,L] RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{REQUEST_FILENAME} !-f RewriteRule ^symphony(\/(.*\/?))?$ index.php?symphony-page=$1&mode=administration&%{QUERY_STRING} [NC,L] ### FRONTEND REWRITE - Will ignore files and folders RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{REQUEST_FILENAME} !-f RewriteRule ^(.*\/?)$ index.php?symphony-page=$1&%{QUERY_STRING} [L] </IfModule> ###### Updated redirect 301 ^home.html http://www.url.com/ [L] ### Symphony 2.0.x ### Options +FollowSymlinks -Indexes <IfModule mod_rewrite.c> RewriteEngine on RewriteCond %{HTTP_HOST} !^www\.krista-swim\.com [NC] RewriteRule ^(.*)$ http://www.krista-swim.com/$1 [L,R=301] RewriteBase / ### DO NOT APPLY RULES WHEN REQUESTING "favicon.ico" RewriteCond %{REQUEST_FILENAME} favicon.ico [NC] RewriteRule .* - [S=14] ### IMAGE RULES RewriteRule ^image\/(.+\.(jpg|gif|jpeg|png|bmp))$ extensions/jit_image_manipulation/lib/image.php?param=$1 [L,NC] ### CHECK FOR TRAILING SLASH - Will ignore files RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_URI} !/$ RewriteCond %{REQUEST_URI} !(.*)/$ RewriteRule ^(.*)$ $1/ [L,R=301] ### ADMIN REWRITE RewriteRule ^symphony\/?$ index.php?mode=administration&%{QUERY_STRING} [NC,L] RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{REQUEST_FILENAME} !-f RewriteRule ^symphony(\/(.*\/?))?$ index.php?symphony-page=$1&mode=administration&%{QUERY_STRING} [NC,L] ### FRONTEND REWRITE - Will ignore files and folders RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{REQUEST_FILENAME} !-f RewriteRule ^(.*\/?)$ index.php?symphony-page=$1&%{QUERY_STRING} [L] </IfModule> ######

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• How can I cornify a SharePoint site?

  - by Chris Farmer

  Inspired by the April 1 gravatar changes and the memory of last year's cornification of Stack Overflow, I wanted to add a cornify button to my company's SharePoint app. I just added their html snippet to a Content Editor Web Part. <a href="http://www.cornify.com" onclick="cornify_add();return false;"> <img src="http://www.cornify.com/assets/cornifycorn.gif" width="52" height="51" border="0" alt="Cornify" /> </a><script type="text/javascript" src="http://www.cornify.com/js/cornify.js"></script> The button renders all glittery and beautiful, and the magical functionality works fine in Chrome and Firefox (I'm on Windows 7) for me. But, in IE8, all the gorgeous unicorn images get added at the bottom of the page such that you can't see them unless you scroll down. Since most of our users are IE users, I fear that this just isn't going to be all that much fun. So, is there some known way to force this to work better in IE8, or is there another similarly fun site adornment utility that I could use that might behave better in a SharePoint 2007 app running in IE7/8?

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• HOW TO save Contacts from iPhone to Computer?

  - by goodm

  Step 1: Download [b]Tansee iPhone Transfer Contact[/b] free trial version [url="http://softseeking.com/prodail.aspx?proid=47"]here[/url],then install the software (skip if done yet). u can download at:[url="http://www.softseeking.com/prodail.aspx?proid=47"]http://www.softseeking.com/prodail.aspx?proid=47[/url] Step 2: Connect iPhone to your computer. Step 3: Run Tansee iPhone Transfer Contact , your contacts on iPhone memory will display as shown in your iPhone screen automatically as fig 1. Click on single name, all his or her information will display as fig 2 shown. Step 4-a: In fig 1 situation, you can click button "Copy" to copy all contacts from your iPhone to your computer , then select options: 1: Choose File Type: backup to TXT file, ANTC file or CSV file; 2: Choose File Path: You can change the backup path if you do not use default path. 3: Advanced Option: if you choose ANTC format in step 1, you can add a password to protect the file. Note: We do not know the password, so please do remember it. Click OK Button to finish the Copy. See fig 3. Note: You can only copy the first 5 contacts with trail version.[/SIZE] [/SIZE] [size=3][size=3]Step 4-b: In fig 2 situation, click button "Copy Contact From who" to copy contact of a single person, select options: 1: Choose File Type: Backup contacts to TXT file, and CSV file in single contact transfer; 2: Choose File Path: You can change the backup path if you do not use default path; 3: Advanced Option: Disabled in single contact transfer. Click OK Button to finish the Copy. See fig 4. Note: You can only copy the first 5 contacts in trail version.[/size] [/size]

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• Squid: The request or reply is too large

  - by Ueli

  I have done a reverse proxy with an Apache in the background (on the same server). All works great but I can't open one page. I get the error "The request or reply is too large." In my cache.log contains: 2010/12/09 15:28:29| WARNING: http.c:971: HTTP header too large 2010/12/09 15:29:03| ctx: enter level 0: 'http://server/admin/cms/nav' 2010/12/09 15:29:03| httpProcessReplyHeader: Too large reply header 2010/12/09 15:29:03| ctx: exit level 0 In my squid.conf i disabled the limitations of the request and reply header, without success: reply_body_max_size 0 allow all request_body_max_size 0 Does someone know why that don't work? Thank you very much. Squid Version: Squid Cache: Version 2.7.STABLE3 configure options: '--prefix=/usr' '--exec_prefix=/usr' '--bindir=/usr/sbin' '--sbindir=/usr/sbin' '--libexecdir=/usr/lib/squid' '--sysconfdir=/etc/squid' '--localstatedir=/var/spool/squid' '--datadir=/usr/share/squid' '--enable-async-io' '--with-pthreads' '--enable-storeio=ufs,aufs,coss,diskd,null' '--enable-linux-netfilter' '--enable-arp-acl' '--enable-epoll' '--enable-removal-policies=lru,heap' '--enable-snmp' '--enable-delay-pools' '--enable-htcp' '--enable-cache-digests' '--enable-underscores' '--enable-referer-log' '--enable-useragent-log' '--enable-auth=basic,digest,ntlm,negotiate' '--enable-negotiate-auth-helpers=squid_kerb_auth' '--enable-carp' '--enable-follow-x-forwarded-for' '--with-large-files' '--with-maxfd=65536' 'amd64-debian-linux' 'build_alias=amd64-debian-linux' 'host_alias=amd64-debian-linux' 'target_alias=amd64-debian-linux' 'CFLAGS=-Wall -g -O2' 'LDFLAGS=' 'CPPFLAGS='

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• Node js server not responding outside localhost centos

  - by David Martinez

  I'm running a basic express server from CentOS but for some reason it is not responding outside of localhost, I have tried everything I have found on google but nothing works so far. This is my express server: app.listen(3000,"0.0.0.0"); If I do curl http://localhost:3000/ in the server it works fine. If I curl to the ip of the server it doesn't work. I already changed my iptables num target prot opt source destination 1 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:80 2 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:80 3 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:3000 There is currently a apache server running on port 80 with no problems. I also tried setting a VirtualHost on apache but it didn't work either: <VirtualHost *:80> ServerName SubDOmain.MyDomain.com ProxyRequests off <Proxy *> Order allow,deny Allow from all </Proxy> ProxyPass / http://localhost:3000/ ProxyPassReverse / http://localhost:3000/ ProxyPreserveHost on </VirtualHost> There is another virtual host working fine that redirects to another DocumentRoot. I'm running Node on root for testing purpose, but the node application owner is another user. All folders have 705 and files 664 Edit: I stopped apache and run my node app on port 80 and it working fine, I could access node app from my ip and domain.

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• WordPress permalinks not working, everything seems fine

  - by javipas

  I have a WordPress blog I've migrated from another CMS, and I've being having a lot of problems with my permalinks structure: lots of articles give a 404, although they are there, somewhere, published. The site is www.muycomputerpro.com (MCP for short), and for example an article that should be found is: http://muycomputerpro.com/Actualidad/Especiales/2009-las-grandes-crecen-en-la-bolsa If I do a search on the search tool at MCP, the result is there (see EnlacesMCP-1.jpg) But when I click on the link, our 404 error page appears (see EnlacesMCP-2.jpg) The weird thing is, the article is published, and the permalink is the right one, as you can see on this screenshot of the WordPress CMS: The permalink (below the title) is correct (http://www.muycomputerpro.com/Actualidad/Especiales/2009-las-grandes-crecen-en-la-bolsa/) but it does not work. In fact, if I try to use the short link (http://www.muycomputerpro.com/?p=5023) the article does not show either. I've accessed my WordPress DB and I've search the article to see if there is something wrong there, but from what I can tell all the fields are OK, here's a screenshot: I really don't know what is causing this. The permalink structure should work (I'm using the "Custom permalink" plugin to preserve the old URLs that had a alphanumeric code at the end of the postname) and the permalink config on wordpress is "/%postname%/". I really need help :(

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• configuration of zend frame work in ubuntu

  - by Rahul Mehta

  Hi, I have created a project zfapi by zf command in ubuntu. Now http://myserverpath.com/zfapi/ gives me listing of folder public application and others. http://myserverpath.com/zfapi/public give me the index page index.php. and i have made the UserController.php in application/controllers but by http://myserverpath.com/zfapi/user/ is saying user not found. what configuration i need to set for running it proper. I had set my /etc/apache2/apache2.conf added the following in the last . <VirtualHost *:80> DocumentRoot "/var/www/mypath/zfapi" <Directory "/var/www/mypath/zfapi"> Order allow,deny Allow from all AllowOverride all </Directory> </VirtualHost> is giving me this error while restarting server. [Sat Jan 08 13:32:53 2011] [error] VirtualHost *:80 -- mixing * ports and non-* ports with a NameVirtualHost address is not supported, proceeding with undefined results apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName [Sat Jan 08 13:33:03 2011] [error] VirtualHost *:80 -- mixing * ports and non-* ports with a NameVirtualHost address is not supported, proceeding with undefined results what this i should do .?

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• URL Redirect Configuration in Virtualhost for a Single Page Web Application

  - by fenderplayer

  I have a web application under development that I am running locally. The home page of the application is fetched with the following url: http://local.dev/myapp/index.shtml When the app runs, javascript on the webpage maintains the url and the app state internally. Some of the other urls read as: http://local.dev/myapp/results?param1=val1&param2=val2 http://local.dev/myapp/someResource Note that there are no pages named results.html or someResource.html on my web server. They are just made up URLs to simulate RESTfulness in the single page app. All the app code - javascript, css etc - is present in the index.shtml file So, essentially, the question is how can I redirect all requests to the first URL above? Here's how the vhost configuration looks like: <VirtualHost 0.0.0.0:80> ServerAdmin [email protected] DocumentRoot "/Users/Me/mySites" ServerName local.dev RewriteEngine On RewriteCond %{REQUEST_FILENAME} !-f RewriteRule ^(myapp|myapp2)\/results\?.+$ $1/index.shtml [R=301,L] <Directory "/Users/Me/mySites/"> Options +Includes Indexes MultiViews FollowSymlinks AllowOverride All Order allow,deny Allow from all </Directory> ErrorLog "/private/var/log/apache2/error.log" CustomLog "/private/var/log/apache2/access.log" common </VirtualHost> But this doesn't seem to work. Requesting the other URLs directly results in 404 error.

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• Is this "cache administrator" error my server's problem?

  - by Eoin

  Hey, I have a CentOS VPS running Apache with a phpBB installation. One specific user has received errors when posting a message or logging in to the forum. The following issue has arisen in parallel to installing nginx, which serves only the static files of my site. Not sure if this is only coincidence. Furthermore, my setup uses redirects (in some cases, double-redirects) to point the user to a different virtual folder. So, the forum is seen to be at /translation/ but the actual files are found in /phpbb/. I'm at a loss as to what may be the underlying issue. My server? The person's ISP? She has tested both at home and at work, with similar issues. While trying to process the request: GET /phpbb/index.php?sid=f62c927e7eb8f1d60a92dcc6fd918112 HTTP/1.1 Host: www.irishgaelictranslator.com User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-za Accept-Encoding: gzip,deflate Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive: 115 Connection: keep-alive Referer: http://www.irishgaelictranslator.com/phpbb/ucp.php?mode=login Cookie: phpbb3_cipi4_u=96645; phpbb3_cipi4_k=; phpbb3_cipi4_sid=f62c927e7eb8f1d60a92dcc6fd918112; __utma=153470688.1232378553.1294664234.1294664234.1294664234.1; __utmb=153470688.9.10.1294664234; __utmc=153470688; __utmz=153470688.1294664235.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); style_cookie=null The following error was encountered: Invalid Response The HTTP Response message received from the contacted server could not be understood or was otherwise malformed. Please contact the site operator. Your cache administrator may be able to provide you with more details about the exact nature of the problem if needed.

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• Load Balancing Rails on Apache 2.x

  - by revgum

  My situation is that I need to proxy traffic to the root of my web server to port 81 for IIS, and then any traffic to a sub-directory needs to be directed to the rails app. my-server.com/ - needs to proxy to port 81 my-server.com/myapp - needs to point to the rails app This seems to be working alright for the rails application but the images, javascripts, and stylesheets are not actually working (proxied). I've tried to fiddle with the proxypass lines but it still doesn't work for me..can anyone help? Here's my complete VirtualHost portion of the config; LoadModule proxy_module modules/mod_proxy.so LoadModule proxy_http_module modules/mod_proxy_http.so ProxyRequests off <Proxy balancer://myapp_cluster> BalancerMember http://127.0.0.1:3001 BalancerMember http://127.0.0.1:3002 </Proxy> <VirtualHost *:80> DocumentRoot "c:\ruby\apps\myapp\public" <Directory /myapp > Options FollowSymLinks AllowOverride None </Directory> ProxyPass /myapp/images ! ProxyPass /myapp/stylesheets ! ProxyPass /myapp/javascripts ! ProxyPass /myapp/ balancer://myapp_cluster/ ProxyPassReverse /myapp/ balancer://myapp_cluster/ ProxyPreserveHost on ProxyPass / http://localhost:81/ ErrorLog "c:\ruby\apps\myapp\log\error.log" # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog "c:\ruby\apps\myapp\log\access.log" combined </VirtualHost>

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• Mechanism behind user forwarding in ScriptAliasMatch

  - by jolivier

  I am following this tutorial to setup gitolite and at some point the following ScriptAliasMatch is used: ScriptAliasMatch \ "(?x)^/(.*/(HEAD | \ info/refs | \ objects/(info/[^/]+ | \ [0-9a-f]{2}/[0-9a-f]{38} | \ pack/pack-[0-9a-f]{40}\.(pack|idx)) | \ git-(upload|receive)-pack))$" \ /var/www/bin/gitolite-suexec-wrapper.sh/$1 And the target script starts with USER=$1 So I am guessing this is used to forward the user name from apache to the suexec script (which indeed requires it). But I cannot see how this is done. The ScriptAliasMatch documentation makes me think that the /$1 will be replaced by the first matching group of the regexp before it. For me it captures from (?x)^/(.* to ))$ so there is nothing about a user here. My underlying problem is that USER is empty in my script so I get no authorizations in gitolite. I give my username to apache via a basic authentication: <Location /> # Crowd auth AuthType Basic AuthName "Git repositories" ... Require valid-user </Location> defined just under the previous ScriptAliasMatch. So I am really wondering how this is supposed to work and what part of the mechanism I missed so that I don't retrieve the user in my script.

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• Domain workstation acting up and I can't track it down.

  - by DevNULL

  I have a developer with a Windows XP (SP2) 64 bit machine. If the machine is left on overnight (or any period of time longer than 5-6 hours) it takes 2-3 minutes to open any local drive and his network drives are no longer accessible. Here's what the system logs report... Any Help BTW: The problem just started a week ago and nothing has changed on the domain controller / AD or his machine. --- ERROR 1 Event Type: Error Event Source: NETLOGON Event Category: None Event ID: 5719 Date: 6/8/2010 Time: 9:17:26 AM User: N/A Computer: BFC1 Description: This computer was not able to set up a secure session with a domain controller in domain UR due to the following: There are currently no logon servers available to service the logon request. This may lead to authentication problems. Make sure that this computer is connected to the network. If the problem persists, please contact your domain administrator. ADDITIONAL INFO If this computer is a domain controller for the specified domain, it sets up the secure session to the primary domain controller emulator in the specified domain. Otherwise, this computer sets up the secure session to any domain controller in the specified domain. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 5e 00 00 c0 ^..A --- ERROR 2 The machine-default permission settings do not grant Local Activation permission for the COM Server application with CLSID {555F3418-D99E-4E51-800A-6E89CFD8B1D7} to the user NT AUTHORITY\LOCAL SERVICE SID (S-1-5-19). This security permission can be modified using the Component Services administrative tool. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. --- ERROR 3 Event Type: Error Event Source: RemoteAccess Event Category: None Event ID: 20106 Date: 6/8/2010 Time: 10:12:18 AM User: N/A Computer: BFC1 Description: Unable to add the interface {E76F0A78-7A0B-4EBB-A081-BA3BD452FC4C} with the Router Manager for the IP protocol. The following error occurred: Cannot complete this function. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: eb 03 00 00 e...

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• VLAN setup on my PC

  - by Surjya Narayana Padhi

  Hi Geeks, I am bit new to VLAN. I want my two computers communicate through VLAN. I have following queries. As I am new to it my queries may be somewhat vague in some points. But i would like to hear from experts for my basic queries. I have two PCs Computer A and Computer B in two different IP networks Network A and Network B Both my PC has windows OS installed. How to send a VLAN(#Number) tagged packet from Computer A to Computer B and how to detect and untag the packet at Computer B? (Please provide the steps for windows OS) For this action do I need to check if my ethernet card supports VLAN tagging/untagging? If yes how can I know if my card supports it or not? Is the VLAN applied for Wireless ethernet controllers also? Do I need any switch or router for this action? Experts please given your inputs so that I can have a strong basic. If anyone can give some inputs how i can detect those VLAN in wireshirk, it will be helpful me also. Thanks in advance.

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• Trying to connect simple VB6 ADO to SQL Server 2008

  - by Henry

  We have a VB6 App that -for current purposes - is very basic ADO: Dim a New ADODB.Recorset, set some basic properties like Cursor Location and Lock Type, set a Connection String and a .Source like "Select * from CustomerMaster", and .OPEN - nothing fancy here! Yet, on a new SBS installation with SQL Server 2008 across 2 Servers (one for Apps, the other dedicated to SQL!), it dies/hangs/crashes if you try to run such a Query from anything but the SQL Sever box. Initially, we were using the SQLOLEDB.1 driver, which would crash/hang the entire SQL Server after about 4 such queries (built a simple 6 line App just for this purpose). Then switched to the NATIVE SQL driver, which did allow us unlimited, happy queries - until you did the first Change/Update - THEN it would corrupt the SQL Server if you exited and tried to go back in. All this 'corruption' is happening from the 'App Server' of the SBS pair, and I presume that the App Server (also installed in tandem with the SQL server this week) has the latest MDACs, etc. And running it from a 'lowly XP workstation' is (obviously) no better. ANY ideas??? -Henry

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• How can I find out if a port is opened or not?

  - by Roman

  I have installed Apache server on my Windows 7 computer. I was able to display the default index.php by typing http://localhost/ in the address line of my browser. However, I am still unable to see this page by typing IP address of my computer (neither locally (from the same computer) no globally (from another computer connected to the Internet)). I was told that I need to open port 80. I did it (in a way described here) but it did not solve the problem. First of all I would like to check which ports are opened and which are not. For example I am not sure that my port 80 was closed before I tried to open. I am also not sure that it is opened after I tried to open it. I tried to run a very simple web server written in Python. For that I used port 81 and it worked! And I did not try to open the port 81. So, it was opened by default. So, if 81 is opened by default, why 80 is not? Or it is? ADDITIONAL INFORMATION: 1. In my httpd.conf file I have "Listen 80". 2. This site tells me that port 80 on my computer is opened. 3. I get different responses if I try http://myip:80 and http://myip:81. In the last case browser (Chrome) writes me that link is broken. In the first case I get: Forbidden You don't have permission to access / on this server. 4. IE writes that "The website declined to show this webpage".

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• Forward secrecy in Nginx (CentOS6)

  - by Anil

  I am trying to enable Forward secrecy in CentOS with nginx webserver. What I have tried I have read some tutorials and seems like we should have nginx, openssl latest versions to enable it. So I had installed the openssl latest from source. sudo wget http://www.openssl.org/source/openssl-1.0.1e.tar.gz sudo tar -xvzf openssl-1.0.1e.tar.gz cd openssl-1.0.1e sudo ./config --prefix=/usr/local sudo make sudo make install Now OpenSSL supports the Eliptic Curve ciphers(ECDHE). I tested this with openssl s_server also. It worked well. Next, I replaced Nginx with latest. sudo wget http://nginx.org/packages/centos/6/x86_64/RPMS/nginx-1.4.2-1.el6.ngx.x86_64.rpm sudo rpm -e nginx sudo rpm -ivh nginx-1.4.2-1.el6.ngx.x86_64.rpm and configured Nginx as described in this link ssl_protocols TLSv1 TLSv1.1 TLSv1.2; ssl_prefer_server_ciphers on; ssl_ciphers EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA256:EECDH+aRSA+RC4:EDH+aRSA:EECDH:RC4:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS; http://baudehlo.wordpress.com/2013/06/24/setting-up-perfect-forward-secrecy-for-nginx-or-stud/ But now Nginx does not support ECDHE ciphers. It supports DHE ciphers. I tried by just enabling ECDHE cipher in nginx still doesn't work. I am using latest web browser(chrome 29 and it support this cipher) Am i missing anything ? Or Having issues with CentOS or Nginx? I read somewhere that ECC patent issues with CentOS, is this causing problem?

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• Blocking an IP from connecting

  - by Sam W.

  I have a problem with my Apache webserver where there's and IP than connecting to my server, using alot of connection and wont die which eventually making my webserver timeout. The connection will stay as SYN_SENT state if I check using netstat -netapu I even flush my iptables and use the basic rules and it still doesn't work. The IP will get connected when I start my Apache Basic rules that I use: iptables -A INPUT -i lo -j ACCEPT iptables -A INPUT ! -i lo -d 127.0.0.0/8 -j REJECT iptables -A INPUT -s 89.149.244.117 -j REJECT iptables -A OUTPUT -s 89.149.244.117 -j REJECT iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT iptables -A OUTPUT -j ACCEPT iptables -A INPUT -p tcp --dport 80 -j ACCEPT iptables -A INPUT -p tcp --dport 443 -j ACCEPT iptables -A INPUT -p tcp --dport 21 -j ACCEPT iptables -A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT iptables -A INPUT -j REJECT iptables -A FORWARD -j REJECT The bold part is rule in question. Not sure this is related but tcp_syncookies value is 1. Can someone point out my mistake? Is there a way to block it for good. Thank you

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• KeePass lost password and/or corruption due to Dropbox/KeePassX

  - by GummiV

  I started using Keepass about a month ago to hold my passwords and online accounts info. Everything was stored in a single .kdb file, only protected with a password. I'm using Windows 7. Now Keepass can't open my .kdb file with the error "Invalid/wrong key". I'm fairly confident I have the right password. Altough I might have mixed up a few letters I've tried about two dozen different combinations to minimize that possibility - but can't rule it out though. My guess is however that the .kdb file got corrupted, either due to Dropbox syncing (only using it on one computer though) or because I edited the file using KeePassX on Ubuntu (dual boot on the same computer, accessing a mounted Win7 NTFS partition), or possibly a combination of both. I have tried restoring older versions(even the original one) from Dropbox and trying out all possible passwords without any luck. (which does seem to rule out KeePassX as the culprit, since oldest copies are before I edited the file from Ubuntu) I have tried opening the file with the "Repair KeePass Database file" which always gives the "0xA Invalid/corrupt file structure" (the same error for when a wrong password is typed). I was wondering if there was any way for me to salvage my hard-gathered data. I know generally that brute force cracking is not feasible, but since I can remember probably more than half of the usernames/passwords, any maybe the fact that one of them does come up fairly often (my go-to pass for trivial stuff), that might simplify the brute force process to a doable time frame. Maybe the brute-force thing might incorporate the fact that I know the password length and what characters it's made from. (If we assume corruption, not a password-blackout on my part) I could do some programming if there are any libraries or routines that I could use. Other people seem to have had a similar probem http://forums.dropbox.com/topic.php?id=6199 http://forums.dropbox.com/topic.php?id=9139 http://www.keepassx.org/forum/viewtopic.php?t=1967&f=1 So hopefully this question will become a suitible resource for people when searching the web. Feel free to tell me if you think this should rather be a community wiki.

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• Hardware chose: ASUS Eee Pad Slider or ASUS Eee Pad Transformer for web development?

  - by JamesM

  I was just wondering out of the following Tablets which one seams better to get? I am a web-developer, Always using Unix/Linux/BSD, I want a tablet that has a keyboard. http://gdgt.com/asus/eee/pad/slider/ http://gdgt.com/asus/eee/pad/transformer/ http://www.tweaktown.com/news/18311/asus_eee_pad_slider_transformer_tablets_with_physical_keyboard/index.html I know both are similar, but not sure what one I should get. The Slider seems very nice but again the keyboard is fixed to the tablet unlike the Transformer. P.S: I'm going to use one of the above to showcase my programming work at school, as well as just being used as a cheaper notebook than the $300 Windows.7 locked down notebooks. By Locked down, I mean we pay $300 for them and after 3 years we can do what ever to them, they are Lenovo thinkpad mini-10 and What they have installed is all you get, they don't let us install what ever OS on them. And with the question on both of those links, I think that the transformer would be better but that is only taking in the fact of it being both a tablet and a notebook. What I really care about is power; which one is more powerful? It will be running kFreeBSD-Debian-Squeeze with Linux-Mint theme with several other packages. Though I'm not going to run Windows (which I feel is bloated), I still want power. To help keep my computer from slowing down with cache, I will have a cron.d/hourly script cleaning out the cache memory.

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• What performance degradation to expect with Nginx over raw Gunicorn+Gevent?

  - by bouke

  I'm trying to get a very high performing webserver setup for handling long-polling, websockets etc. I have a VM running (Rackspace) with 1GB RAM / 4 cores. I've setup a very simple gunicorn 'hello world' application with (async) gevent workers. In front of gunicorn, I put Nginx with a simple proxy to Gunicorn. Using ab, Gunicorn spits out 7700 requests/sec, where Nginx only does a 5000 request/sec. Is such a performance degradation expected? Hello world: #!/usr/bin/env python def application(environ, start_response): start_response("200 OK", [("Content-type", "text/plain")]) return [ "Hello World!" ] Gunicorn: gunicorn -w8 -k gevent --keep-alive 60 application:application Nginx (stripped): user www-data; worker_processes 4; pid /var/run/nginx.pid; events { worker_connections 768; } http { sendfile on; tcp_nopush on; tcp_nodelay on; keepalive_timeout 65; types_hash_max_size 2048; upstream app_server { server 127.0.0.1:8000 fail_timeout=0; } server { listen 8080 default; keepalive_timeout 5; root /home/app/app/static; location / { proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $http_host; proxy_redirect off; proxy_pass http://app_server; } } } Benchmark: (results: nginx TCP, nginx UNIX, gunicorn) ab -c 32 -n 12000 -k http://localhost:[8000|8080]/ Running gunicorn over a unix socket gives somewhat higher throughput (5500 r/s), but it still does't match raw gunicorn's performance.

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