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• fail2ban with Cloudflare

  - by tatersalad58

  I'm using fail2ban to block web vulnerability scanners. It is working correctly when visiting the site if CloudFlare is bypassed, but a user can still access it if going through it. I have mod_cloudflare installed. Is it possible to block users with IPtables when using Cloudflare? Ubuntu Server 12.04 32-bit Access.log: 112.64.89.231 - - [29/Aug/2012:19:16:01 -0500] "GET /muieblackcat HTTP/1.1" 404 469 "-" "-" Jail.conf [apache-probe] enabled = true port = http,https filter = apache-probe logpath = /var/log/apache2/access.log action = iptables-multiport[name=apache-probe, port="http,https", protocol=tcp] maxretry = 1 bantime = 30 # Test Apache-probe.conf [Definition] failregex = ^<HOST>.*"GET \/muieblackcat HTTP\/1\.1".* ignoreregex =

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• 'inode table usage' spiking every morning at 8am

  - by Harry Wood

  I installed munin on my ubuntu server. It's showing my 'inode table usage' spiking every morning at 8am. It then rapidly curves down and settles over the course of several hours. What might cause this? I thought it might be something running in /etc/cron.daily but this was set to run at 6a.m. and I've changed it to 4am. The spike remains at 8am. I also enabled cron logging, but can't see anything getting launched at 8a.m. It's a virtual server hosted by memset. Could it be caused by something happening on the virtual host?

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• Fix a tomcat6 error message "/bin/bash already running" when starting tomcat?

  - by Andrew Austin

  I have a Ubuntu 10.04 machine that has tomcat6 on it. When I start tomcat6 with /etc/init.d/tomcat6 start I get * Starting Tomcat servlet engine tomcat6 /bin/bash already running. and the server fails to start. Unfortunately, there is nothing in /var/log/tomcat/catalina.out to help debug the issue. With some cleverly placed echo statements it seems to be the line from /etc/init.d/tomcat6: start-stop-daemon --start -u "$TOMCAT6_USER" -g "$TOMCAT6_GROUP" \ -c "$TOMCAT6_USER" -d "$CATALINA_TMPDIR" \ -x /bin/bash -- -c "$AUTHBIND_COMMAND $TOMCAT_SH" The only thing I've changed in this script is TOMCAT6_USER=root. In servers.xml, the only thing I've changed is <Connector port="80" protocol="HTTP/1.1" from port 8080. I have tried reinstalling the package by first removing everything sudo apt-get --purge remove tomacat6 and then sudo apt-get install tomcat6 but this has not solved the issue. I have also restarted the server multiple times in hopes of some magic. Everything was working until I restarted my server. Any ideas?

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• PostgreSQL: performance descrease due to index bloatper

  - by Henry-Nicolas Tourneur

  I'm running a PgSQL 8.1 on a CentOS 4.4 system (not upgradable unfortunately). There's a Java app running on top of the PgSQL daemon and we got to reindex the database every 2 months or so. Also important: the database isn't growing. It looks like the bloat is now coming faster than before and this tends to increase. My config is available here, autovacuum daemon is enabled and running quite often: pastebin.com/RytNj7dK You can also find the output of this query wiki.postgresql.org/wiki/Show_database_bloat 3 hours after running reindex: http://pastebin.com/raw.php?i=75fybKyd 72 hours after running reindex: http://pastebin.com/raw.php?i=89VKd7PC Does anyone have any idea what should I tweak to get rid of that growing bloat? Thanks for your help PS: due to antispam prevention system, I had to remove the first 2 http:// prefixes for my two first links.

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• Cron Permission Denied

  - by worldthreat

  good day, I have a bash script in my home directory that works properly from the command line (file structure is default media temple DV. < noted for certain permission issues) but receive this error from cron: "/home/myFile.sh: line 2: /var/www/vhosts/domain.com/subdomains/techspatch/installation.sql: Permission denied" NOTICE: it's just line 2... it writes to the local server just fine. Below is the Bash File: #!/bin/bash mysqldump -uUSER -pPASSWORD -hHOST dbName> /var/www/vhosts/domain.com/subdomains/techspatch/installation.sql mysql -uadmin -pPASSWORD -hlocalhost dbName< /var/www/vhosts/domain.com/subdomains/techspatch/installation.sql can't chmod from bash (lol, yeah i tried). writing the file there and setting the permissions before the transfer is useless... i have googled the heck out of this situation and this one still seems unique.... any insight is appreciated

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• serving static file from cookieless domain: alternative cookieless directory

  - by Simone Nigro

  I'm trying to follow all the guidelines of "Google Page Speed??". The directive "Minimize request overhead" requires static content (images, js, css, etc.) on a static server (ie cookieless): https://developers.google.com/speed/docs/best-practices/request I do not want to buy a new server and I was thinking of just setting a directory of my site without cookie with htaccess www.mysite.com/static/.htaccess Header unset Cookie Header unset Set-Cookie I do not know if it can be problematic. Looking on google it seems that no one ever has adopted this type of solution, so I think that it is incorrect. What do you think? alternatively you could do www.mysite.com/.htaccess <FilesMatch "\.(css|js|jpg|png|gif)$"> Header unset Cookie Header unset Set-Cookie </FilesMatch>

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• Lighttpd as a proxy to a https host

  - by Homer J. Simpson

  Hi, I am trying to set up a lighttpd as proxy from one server to another (which is running Apache/SSL), having trouble with the https part.. I want to be able to capture https requests and let the Apache server handle it, trying this: $SERVER["socket"] == ":443" { $HTTP["host"] == "www.mydomain.com" { proxy.server = ( "" => ( ( "host" => "123.123.123.123", # the Apache "port" => 443))) } } Normal port 80 requests are working fine.. What am I doing wrong ? Edit: Additionaly, error.log doesnt show anything.. Requests to https://www.mydomain.com are not finishing.

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• Tomato QoS: Why is some traffic unclassified when there are classifications for it?

  - by Armitage

  Ok, I am trying to tweak my router to give priority to some traffic. My classifications seem to cover just about everything but I still see ~60 to ~80% of the traffic as unclassified: TCP 192.168.1.100 64137 192.168.1.1 80 Unclassified TCP 192.168.1.100 64175 192.168.1.1 80 Unclassified TCP 192.168.1.100 64144 192.168.1.1 443 Unclassified I assume that the 64### ports are just what my WAP uses to send packets inside my home network. But my classifications seems to cover any traffic for destination ports 80 and 443: (partial list) TCP Dst Port: 80,443 High WWW TCP/UDP Dst Port: 1024-65535 Lowest Bulk Traffic Why do I have so much unclassified traffic if I have a classification that should cover it?

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• "Server not found" for live version of site

  - by user1491819

  I can access my local dev site on my local pc, eg: http://mysite But I cannot access the live site, even though it works fine on other pc's: http://www.mysite.com The live site gives the error in Firefox: Server Not Found. Pinging www.mysite.com gives the error:"Ping request could not find host www.mysite.com" hosts file: 127.0.0.1 mysite I changed the hosts file to the following and rebooted: 127.0.0.1 mysitedev I'm running on XP, and have cleared the DNS cache using: ipconfig /flushdns I have verified the live site is up using: http://www.isup.me/ and the site loads fine using my phone. What could be preventing my local pc from accessing the live site?

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• Monitoring mongrel with monit

  - by matnagel

  I wrote a monit.d file for mongrels which works in this version: check process redmine with pidfile /home/redmine/service/redmine.pid group webservice start program = "/usr/bin/mongrel_rails start -p 41328 -e production -d --pid /home/redmine/service/redmine.pid --user redmine --group redmine -a 127.0.0.1 -c /home/redmine/app" stop program = "/usr/bin/mongrel_rails stop --pid /home/redmine/service/redmine.pid -c /home/redmine/app && rm /home/redmine/service/redmine.pid > /dev/null 2>&1 if cpu greater 50% for 2 cycles then alert if cpu greater 80% for 3 cycles then restart if totalmem greater 60.0 MB for 5 cycles then restart if loadavg (5min) greater 4 for 8 cycles then restart if 3 restarts within 5 cycles then timeout $ Checking monit control file syntax... $ Control file syntax OK I want to also monitor the http response, so I add this line at the end: if failed port 41328 protocol http with timeout 10 seconds then restart Now monit complains: $ Checking monit control file syntax... $ /etc/monit.d/redmine:16: Error: exceeded maximum number of program arguments 'http' $ ERROR: CHECK MONIT CONFIG FILE SYNTAX How do I correctly monitor the port?

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• Running complete Native Linux on phones that are bootloader-unlocked [on hold]

  - by james

  Since there are many phones (HTC, Samsung, LG, Nexus) today that have bootloader unlocked, I want to ask what's preventing them from running a complete native GNU/Linux. GNU/Linux has ARM port and we can run a command line GNU/Linux on top of Android by the method of chroot. So, what's preventing for existing bootloader unlocked Android phones from running a complete GNU/Linux natively? The device should get a long shelf life if it has one such port. My few thoughts.. Proprietary drivers for hardware that cannot be made to work when using a different OS. And the binary provider will never support any OS other than what the phone is shipped with. Application Interface. The interface for desktop apps doesn't fit to the mobile display with different PPI. Kernel. Since android devices use Linux kernel whose sources should be available, could the device kernel be modified to work with GNU/Linux. And any other reasons?

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• Getting rid of Plesk on a VPS

  - by TomA

  I've been using a relatively expensive VPS for hosting about 30 domains and I want to migrate to a cheaper one, without Plesk. Both use CentOS. My users will not care, they don't use Plesk anyway. But I will not be able to use it for creating new virtual hosts, FTP accounts etc. I'm not a commandline guru, esp. not in a server environment. Is there a free Plesk alternative for these purposes? I need to: Create a new virtual host with it's own FTP account Setup some basic FTP quota I don't need: DNS management (the new VPS service has an external DNS management GUI) Mail server management (I use Google Apps) Any suggestions welcome, from Plesk alternatives to "RTFM" or links to tutorials.

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• How to setup anonymous access in WinSSHD

  - by Shrike

  I have a Windows server (Win2008R2) with WinSSHD installed. I need to allow anonymous access to a particular folder on the server. Actually it's a git repositiory for bower registy but it doesn't matter. I want WinSSHD allow me to connect to an endpoint like "ssh://[email protected]/" I've created a virtual user "bower" with password only auth. No keys. But if I leave empty password then WinSSHD doesn't allow connection with error "Incorrect virtual account password". How to setup a SSH access without any authentication?

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• Cannot see http (apache) server outside home network

  - by user165155

  Ive been racking my brain with this all evening. Power went out with a tstorm today, started back up my server... running apache and a team speak server on it. TS is great, cant see my web page outside my network! Firewall is disabled on the pc running it (centos btw), apache is running and working. correct ports are forwarded on my router (my isp blocks port 80). Ive tried changing ports, pretty much everything i can think of. httpd.conf is pointing to the correct addy and port, and my domain is pointing to the correct external ip. Im at a loss, any ideas out there?

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• vncserver too many security failures

  - by cf16

  I try to connect to my vncserver running on CentOs from home computer, behind firewall. I have installed Win7 and Ubuntu both on this machine. I have an error: VNC conenction failed: vncserver too many security failures even when loging with right credentials (I reset passwd on CentOs). Is it something regarding that I try as root? I think important is also that I have to login to remote Centos through port 6050 - none else port works for me. Do I have to do something with other ports? I see that vncserver is listening on 5901, 5902 if another added - and I consider connection is established because from time to time (long time) the passwd prompt appears,... right? please help, what to do? even if prompt appeared and I put correct password I get: authentication failure. how to disable this lockout for a testing purposes?

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• Cannot remove wireless network profile even though admin account is used

  - by David Karlsson

  On my windows computer which is connected to a company domain. I have problems with the wireless networking. First of all the computer fails to connect. Second of all I cannot remove the network from the list of wireless profiles. The properties window simply claims that "This network is administered by the Administartor Account". I am currently logged in as the local administrator. I have also tried creating a new admin account and still get the same problem when trying to remove the network. My computer has only the microsoft security essentials antivirus and some VMWare+virtual box connections that I can figure might interfere, but disabling realtime protection has not helped me on this. I also cannot delete the virtual network adapters from the control panel / network adapters...

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• What resources are best for staying current about information security?

  - by dr.pooter

  What types of sites do you visit, on a regular basis, to stay current on information security issues? Some examples from my list include: http://isc.sans.org/ http://www.kaspersky.com/viruswatch3 http://www.schneier.com/blog/ http://blog.fireeye.com/research/ As well as following the security heavyweights on twitter. I'm curious to hear what resources you recommend for daily monitoring. Anything specific to particular operating systems or other software. Are mailing lists still considered valuable. My goal would be to trim the cruft of all the things I'm currently subscribed to and focus on the essentials.

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• Is there any way to isolate the python2.7 , mod_wsgi installation from main environment

  - by user31

  I have many local virtual machines for building the django websites. I find it very hard to configure all the machines with mod_wsgi , python and all that installation issues. Is there any way that i can install even python 2.7 , mod_wsgi etc and all that inside the virtual environment folder so that i can just copy paste that folder in my live server and i don't need to mess with mos_wsgi , python 2.7 and other issues. Is it possible or even any close variation of that so that puting the site to live servers is very easy and everything which is needed by site should be included locally I also face many problems when i need to move the django sites across servers

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• Multiple PHP versions running as cgi

  - by Pierre

  I'm trying to install a second version of PHP, to run alongside the current version of php. I've compiled the latest php source from github (5.5-DEV), and I'm trying to run it as CGI. Here is my virtual host config: <VirtualHost *:8055> DocumentRoot /Library/WebServer/Documents/ ScriptAlias /cgi-bin/ /usr/local/php55/cgi Action php55-cgi /cgi-bin/php-cgi AddHandler php55-cgi .php <Directory /Library/WebServer/Documents/> Options Indexes FollowSymLinks Includes ExecCGI AllowOverride All Order Allow,Deny Allow from all </Directory> DirectoryIndex index.html index.php </VirtualHost> But when I go to http://127.0.0.1:8055/info.php, I get the following error: Forbidden You don't have permission to access /cgi-bin/php-cgi/info.php on this server Edit I'm now switching between LoadModule php5_module /usr/local/php54/libphp5.so and LoadModule php5_module /usr/local/php55/libphp5.so It works for now, but is not ideal. I would like to have the different versions of php on different virtual hosts

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• haproxy modify request path

  - by zcourts

  I'm just getting started with HAProxy and I was wondering if its possible to modify the request path for an HTTP request. One of the backend server uses Dropwizard and its assets bundle see here bundle. In my setup /xyz serves static assets /api/xyz serves REST resources With HAProxy I want requests from api.host.com/xyz to be sent to backend/api/xyz and requests from host.com to be sent to backend/ I've gotten most of that working but I can't figure out how to tell HAProxy to change the path, prepending /api/ to anything from api.host.com Is this possible or am I going about this the wrong way?

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• Windows Server 2008 hangs up while booting

  - by Jim R

  Windows Server 2008 hangs up while booting after Windows update applied several updates. The server is a virtual instance on a Server 2008 Hyper-V host. Other virtual servers are fine, but have not been updated. The normal boot shows the horizontal barber poll forever. When I do a safe boot it also hangs up. With a "Please Wait..." after loading many '.sys' files. The last successfully loaded file listed is: '\Windows\system32\drivers\crcdisk.sys' That is the extent of what I have been able to determine.

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• Unable to do forwarding in BIND DNS?

  - by preethika

  I have BIND working on Windows Server 2003. i want to forward my queries to another server. Recursion is working but forwarding is not working. can u guide me to set it. i've given the following in the options: options { directory "c:\named\zones"; allow-transfer { none; }; forward only; forwarders { 8.8.8.8 ; }; recursion no; }; is the format for forwarding correct in the above. if not what is the format. Am i to give any port number in the forwarders line? Does forwarding have any particular port number? Thank You in advance....

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• 421 Concurrent Connections - Ratelimit from helpdesk to rackspace server

  - by g18c

  We have Kayako helpdesk running on our WHM Linux server. When e-mails come in from customers, notifications are sent out by Kayako to a number of staff whose mailboxes are hosted on Rackspace mail servers. I noticed a large queue in the Exim queued message viewer of WHM - when looking in Exim logs I can see many lines 2012-10-13 20:06:56 1TN72s-0007Cw-1l SMTP error from remote mail server after initial connection: host mx2.emailsrvr.com [173.203.2.32]: 421 Too many concurrent connections from this client. One client email results in about 5 emails to rackspace servers, perhaps 60 emails per 1 hour on average - not a huge amount but enough to cause messages to be rejected when sent in short bursts. In this case ideally if we can limit the connections sent to the rackspace server we can comply with their limit. For our requirements if we send 1 email every10 seconds or so, this would be OK. Messages to all other servers should go through a normal rates, only mx1.emailsrvr.com and mx2.emailsrvr.com should have this connection limit policy applied. Is this possible?

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• freebsd does not recognise that php was installed via ports

  - by Alistair Prestidge

  I have php 5.2.12 installed on FreeBSD 8.0-STABLE. It was installed from ports and I am trying to upgrade it to 5.3.2. However for some reason my system is not recognising that php was installed via ports. When I run "pkg_version" the list does not include php it does however include all the extensions that I have installed. I have even tried to do "make deinstall" on "/usr/ports/lang/php5" it told me that the port had been deinstalled but php still appears to be working correctly i.e "php -v" works any ideas on how this port has become de attached from the ports system? and how I can get the ports system to recognise that it installed php?

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• Use netcat as a proxy to log traffic

  - by deephacks

  I want to use netcat as a proxy to log http requests and responses to files, then tail these to inspect traffic. Think wireshark. Tried the following where 'fifo' is a named pipe, 'in' and 'out' are files, netcat proxy on port 8080, server on port 8081. while true; do cat fifo | nc -l -p 8080 | tee -a in | nc localhost 8081 | tee -a out 1fifo; done Problems: Netcat stop responing after first request (while loop ignored?). Netcat fails with msg localhost [127.0.0.1] 8081 (tproxy) : Connection refused if server unavailable on 8081. Question: Is it possible to "lazily" connect to 8081 when request is made? I.e. I do not want to have 8081 running when netcat is started.

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