gnutechjohn

Technical Skills Server Management: 1. Strong Exposure to Network Architecture and Security on Linux servers. 2. Web Servers - Apache 1.3.x/2.0.x, (expertise in configuring apache modules: mod_dosevasive, mod_security, mod_rewrite etc ). 3. Performance Tuning/ Monitoring of Servers 4. Mail - SMTP, POP, IMAP, exim. 5. Kernel compilation: Good experience in kernel compilation, 2.2, 2.4 and 2.6. 6. Admin Tools - mytop, vmstat, iostat, top, traceroute, ping, sar, ntop, memcheck 7. Backup - tar, cpio, dump (ufsdump) 8. Security Protocols/Services/Tools - SSH, SSL, IPchains, IPtables, TCP Wrappers. 9. Port scanners: nmap, superscan 10. Vulnerability Scanner: Nessus 11. Hands on experience in OpenVZ 12. Crash Recovery of file systems - Using fsck Web hosting Tools: 1. Good knowledge in web hosting Control panels such as Cpanel, WHM 2. Managing User Accounts, File Systems, Security, Disk Usage and Backup. 3. Server restoration and transferring of accounts between all types of server. 4. Configuring Nagios for 24/7 server monitoring. 5. Setting up new servers and installing server monitoring softwares like Nagios, MRTG etc. Knowledge in Security Installations/Configuration 1. Installing and configuring software Firewalls (APF and CSF) 2. Installing and configuring rootkit detection software 3. Scan and harden /tmp /var/tmp directories 4. Extended Binary Hardening 5. PAM Resource Limiting 6. Inetd hardening 7. Installing Brute Force Detection software (APF+BFD) 8. Tweaking MySQL 9. Host.conf & Sysctl Hardening 10. Compiling PHP to the Latest Stable Version 11. PHP Hardening (Tweak php.ini & Disabling of insecure PHP functions) 12. Remove insecure packages and unnecessary softwares 13. Upgrade Installed Softwares to the latest version 14. Install Mod_security apache module with latest custom rules 15. Tripwire installation and configuration 16. Port scanning techniques 17. Mailmon - Sendmail monitor installation 18. ClamAV - Antivirus toolkit installation 19. Install Exim Dictionary Attack ACL 20. Spamassassin installation 21. Setup RBL integrated with major Spam databases 22. Install & Configure MRTG Web Server Administration: Apache 1.3.x/2.2.x Linux Security Tools handled Iptables, Ipchains, TCP Wrappers, APF, Rkhunter (Rootkit Hunter), chrootkit , CSF