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System Administrator
This job ad has been posted over 40 days ago...
Job Type : Freelance
Open to : Singaporean or PR
Mohan
Posted on : Dec15 2012
IT experience in extensive system administration of various operating systems like Red hat Linux and windows 2003/2008 server. Implementing various service like DHCP, DNS, WINS, FTP, Messaging, Web Servers, Application servers and Firewall.
TECHNICAL SKILLS
• DNS Servers -Bind and DJBDNS on Red Hat Linux and Bind on Windows, used for mapping Internet zones for multiple websites.
• Platforms: Windows Platforms: Windows 2000/XP/2003,2008 UNIX (SunOS, AIX ), Linux (RHEL, Mandrake, Debian ,Suse, Centos)
• Networking: TCP/IP, DNS, HTTP, LDAP, SQL, SMTP, VPN, SSH, SSL, Ethernet, DHCP, Firewalls, DMZ, Load Balancers, MS Clusters, Web Services, .NET, F5 (BIG IP)
• FTP Servers -Vsftp Proftp on Red Hat Linux and Ftp on windows supported with IIS
• Web Servers – IIS 5 & IIS 6, Iplanet 5 & 6 , Apache, Tomcat, BEA Weblogic server 8.1 & 9.2
SharePoint 2003 & 2007, JRUN, IBM Web sphere
• Mail Servers - Send mail, postfix, Qmail on Red Hat Linux and Exchange 2000 and 2003
• Fire Walls – Sonic Fire walls, Iptables on Red hat Linux and ISA Fire Wall 2000 on windows 2000/2003 server
• VPN - IPSEC and PPTP based VPN’s on Red Hat Linux and Windows
• Databases – Mysql on Red Hat Linux and Mssql on Windows
• Proxy Servers – Squid on Red Hat Linux and Microsoft Proxy server, win gate proxy on windows
• Office - Open Office, Star Office, MS Office
• Security - SSH, SSL, IPchains, Iptables, TCP Wrappers, Tripwire, port scanners, password crackers
• Back up – Tar, HP DAT Tape Drive, Ntbackup
• Domain Controllers – Samba and Ldap on Linux and Active Directory on windows 2003/2008 server
• DHCP server – Dhcp server on Red Hat Linux and Windows
• Virtualization: vSphere 4 (ESX / ESXi), Xen, KVM, Virtual Box
• System and Network Monitoring – Nagios, Ntop, Opennms, Mrtg, nessus, Site Scope
• Web Administration - Advanced in configuration and maintenance of web sites:
Apache, BEA Weblogic, IIS 5 & 6 , HtDig, Jboss, Tomcat etc
• Admin Tools - vmstat, iostat, top, traceroute, ping, sar, ntop, webmin
• Content Mangement : Team site 6 & 5, Opendeploy 6, Scmdeploy
• Ldap servers : Sun one Ldap server, Open Ldap , Redhat Directoy Server
TECHNICAL SKILLS
• DNS Servers -Bind and DJBDNS on Red Hat Linux and Bind on Windows, used for mapping Internet zones for multiple websites.
• Platforms: Windows Platforms: Windows 2000/XP/2003,2008 UNIX (SunOS, AIX ), Linux (RHEL, Mandrake, Debian ,Suse, Centos)
• Networking: TCP/IP, DNS, HTTP, LDAP, SQL, SMTP, VPN, SSH, SSL, Ethernet, DHCP, Firewalls, DMZ, Load Balancers, MS Clusters, Web Services, .NET, F5 (BIG IP)
• FTP Servers -Vsftp Proftp on Red Hat Linux and Ftp on windows supported with IIS
• Web Servers – IIS 5 & IIS 6, Iplanet 5 & 6 , Apache, Tomcat, BEA Weblogic server 8.1 & 9.2
SharePoint 2003 & 2007, JRUN, IBM Web sphere
• Mail Servers - Send mail, postfix, Qmail on Red Hat Linux and Exchange 2000 and 2003
• Fire Walls – Sonic Fire walls, Iptables on Red hat Linux and ISA Fire Wall 2000 on windows 2000/2003 server
• VPN - IPSEC and PPTP based VPN’s on Red Hat Linux and Windows
• Databases – Mysql on Red Hat Linux and Mssql on Windows
• Proxy Servers – Squid on Red Hat Linux and Microsoft Proxy server, win gate proxy on windows
• Office - Open Office, Star Office, MS Office
• Security - SSH, SSL, IPchains, Iptables, TCP Wrappers, Tripwire, port scanners, password crackers
• Back up – Tar, HP DAT Tape Drive, Ntbackup
• Domain Controllers – Samba and Ldap on Linux and Active Directory on windows 2003/2008 server
• DHCP server – Dhcp server on Red Hat Linux and Windows
• Virtualization: vSphere 4 (ESX / ESXi), Xen, KVM, Virtual Box
• System and Network Monitoring – Nagios, Ntop, Opennms, Mrtg, nessus, Site Scope
• Web Administration - Advanced in configuration and maintenance of web sites:
Apache, BEA Weblogic, IIS 5 & 6 , HtDig, Jboss, Tomcat etc
• Admin Tools - vmstat, iostat, top, traceroute, ping, sar, ntop, webmin
• Content Mangement : Team site 6 & 5, Opendeploy 6, Scmdeploy
• Ldap servers : Sun one Ldap server, Open Ldap , Redhat Directoy Server
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