More detailed information on what and how the attack works is here I will focus only on fixing the problem. On RHEL server 5.x and 6.x the easy way is to simply disable SSL compression. In newer Apache versions this […]
check_conntrack_unreplied
Our front end varnish servers expierence a lot of traffic and we currently must have a iptables NAT that routes from port 80 to port 81, where the varnish daemon listen to traffic. Doing this we end up using the […]
font woff problem
roblem: The default webserver (Apache/IIS) does not have some fonts format ‘we’ added to the website This result in the browser, specially firefox to take long time to load the page. The problem is clearly much worst in Firefox, do […]
bash date convert epoch time
Many times you will need to conver Unix/Linux epoch time to a readable date format That is quite simple $ date -d@1363497047 Dom Mar 17 02:10:47 BRT 2013 To get a current epoch time we simply use date command as […]
Check Linux Cluster
A simple nagios/bash script to check if a RedHat/CentOS cluster has failedover.It uses the output from the clustat command. The usage is simple the script name and service, example: check_usage IO_Service It has been tested only with a 2 node […]
linux burn iso to flash drive
I have tried a lot of tools but there is none better then UnetBootin http://unetbootin.sourceforge.net/It is multiplataform, windows, max, linux. UNetbootin can create a bootable Live USB drive, or it can make a “frugal install” on your local hard disk […]
screen
Screen command Screen is a linux tool to help manage connections. “Screen is a full-screen window manager that multiplexes a physical terminal between several processes (typically interactive shells).” Its able to reestablish lost sessions, and to have multiple connections. 1) […]