12+ years of IT Networking & System administration as well as Firewall implementation & troubleshooting experiences with MNC companies in Singapore as well as experienced in ISP platform. I have achieved very good understanding and hands-on experiences on the following grounds -
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- Linux (SuSe, Ubuntu, RedHat, CentOS, Debian, BSD, Fedora, Solaris) distros
- Server Control Panel - WHM/CPanel, Plesk, DO, EC2
- Windows - NT4, 2000, 2003, 2008R2, 2012 R2 Server platform
- Firewalls - IPTABLES, Cisco ASA, Fortigate, Juniper NS 25, CheckPoint,...
Apr 30, 2015|System Administration|$77|Completed
Mar 11, 2015|Networking & Security|$274|Completed
Feb 12, 2015|System Administration|$307|Completed
Feb 1, 2015|System Administration|$635|Completed
- Linux Opensource application installation, configuration and troubleshooting
- Integration & troubleshooting between Apache/HTTPD, PHP, MySQL/Postgres, Perl Modules, Tomcat as well as other libraries and dependencies.
- Routers & Switches configuration & troubleshooting (Layer 2 & 3) - Cisco, 3Com, Alcatel, HP, Asus, SRX series, Microtik and confident to work with any brand.
- Network design and infra setup with failover with firewalls and switches.
- Firewall configuration & troubleshooting (Cisco ASA, Juniper NS 25, Nokia Checkpoint, Linux IPTABLES, PfSense, MonoWall, SonicWall, Cisco IOS Firewall, SRX series etc.)
- Malware detection and cleaning (Windows & Linux platform)
- Installation of SpamAssassin & ClamAV antivirus, Amavisd
- Implementation of Monitoring tool (Such as Opsview, Zabbix, RT, Cacti, MRTG, PRTG, Nagios, SNMP, OpenNMS) and ticketing tool such as OTRS as well as integration of automation between Opsview monitoring system and OTRS ticketing system.
- VPN services (IPSEC, Site-to-Site, Remote access) and confident to work with different vendors' devices and on Windows and Linux platform such as with OpenVPN & OpenVPN AS.
- DNS, DHCP, SQUID, WEBMAIL, QMAIL, COURIER-IMAP, ZIMBRA, MRTG, PRTG, CACTI, ALFRESCO
- SPF, DKIM, DMARC, PTR and all DNS records troubleshooting and implementation.
- VMWARE and Citrix, VirtualBox with frontend PHP GUI virtualization and troubleshooting.
- Back to back configuration on 3Com 3000 series of routers over ATM
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