SENIOR LEVEL 3 REMOTE SERVER ADMIN - 4+ YEAR EXP ***[FOR HIRE]***
I work as a Freelance Security Vulnerability Analyst and a Linux System Administrator for the past 4 years. I have good experience in working as a Technical Support Engineer / Team Leader for well known Hosting companies and Data centers. I have a bachelor degree in Computer Science Engineering and a Red Hat Certified Engineer too.
I am currently looking for a full time employment in datacenters/webhosting companies. The key strengths that I possess for success in this position include:
*Tweaking and Optimizing Apache for better performance.
*Hardening PHP and Apache
*Mysql renice for good performance
*Scan servers for any Rootkits, Virus, Iframes etc
*Installation and configuration of PHP and Perl on the server.
*Installation and configuration of Mod_sec, Mod_evasive, Libsafe, logcheck, logwatch
*Check for bad disk blocks in all partitions using SMARTD
*Check server load and partitions to perform maintenance activities
*Prevent the execution of spamming scripts
If your server is a target of DDOS attacks or Spam attacks (inbound and outbound) or Brute force attacks, and don't know how to tackle them, then I am the guy you are looking for.
These type of attacks mentioned above can easily cause the server load to rise to such an extend that it goes down. In general, a server once online remains online until there occur a network or hardware failure, or till the sys admin restarts it. If you find yourself submitting reboot tickets with the NOC every other day, then maybe you should harden the server.
Here are the things I could help you with:
*Installation, configuration and fine tuning of APF, BDF and CSF
*Install and configure PRM to check load spikes and kill unwanted processes automatically
*Configure exim to trace spammers on your server
*Create and install shell scripts that automatically delete unwanted mails from the mail queue every hour
*Configure exim to reject mails from IPs that are listed in common RBLs. This could reduce a lot of incoming spam issues on the server
*Install and configure Apache modules like mod_security, mod_throttle, mod_bandwidth and many more (whichever required) to stop Cross scripting attacks and Remote file inclusion attacks
*Fine tuning of FTP and DNS servers
Has your server been hacked recently?? How did he get in? Is the server still vulnerable? Are you receiving abuse reports originating from your server? Well, I may help you with all these:
*Tweak built-in Linux parameters to increase security
*Search for vulnerable files and directories on the server
*Search for common hacker installed shell scripts like c99 and r57
*Search and find suspicious processes and ports open on the server
*Install and run Rootkit hunters like chkrootkit, rkhunter etc to look for compromised binaries
I would be pleased to help you out with your server related issues.
If you have any ticketing system and would like me to support your clients, please let me know. I am available to look after your helpdesk/ticketing systems