Linux L3 Engineer
3 weeks ago
Linux Process and performance management like PS , Top , Vmstat , Sysstat , etc Importing to CSV ,SQLs . Mysql Management tools understanding
Syslogs servers ,Backups ,Account managements ,
Skilled to handle Hardware devices like servers etc
Linux Operational Knowledge and Mysql Exp on Linux.
OS log management and analysis like syslog , messages , logrotate etc.
Standard Linux Daemons Implementation and management
like Httpd , postfix , sendmail , bind , dhcpd , NFS , FTP , squid , Samba etc.
Linux HA cluster knowledge.
NDB Cluster Management , Mysql Cluster backups , Cluster logs and Error
Understanding Tables, databases , Views , redo , undo logs , Tablespace
Understanding of MyIASM , INNODB and NDB Engines , Cluster Replication management on Mysql Implementation and diagnosis 2. Nagios architecture).
Candidate should have experience on Multi server architecture (Split services
Knowledge of Mysql Cluster and Network device (ciso) will be Preferred.
Nagios Complex implementation & Enable monitoring for Nagios infrastructure and integrating alerts with ticketing system to maintain minimal service outages.
Clear understanding on mail Clients configuration.
Hand-on experience in Zimbra Email System.
Administration of Zimbra Email Server ,Zimbra CLI Knowledge , Internal Achitecture and working, Multi server Architecture understanding.
Manage and configure Zimbra Email server.
Create / Update email account, email quota, email queue maintenance.
Maintain Antispam filtering service.
Postfix knowledge Installing zimbra mail server and management cos, zextras. 3. Zimbra Other Skills:
Installation and configuration of RHEL and OEL by CD , FTP , HTTP , NFS and PXE boot
Configuration RAID , LVM , Partitions , Mounting
Familiarity with Linux Usage commands
RHCE certification ( RHCE/ RHCSA)
Implementation Network and OS level security like Selinux , ssh Security , IPTABLEs , Users Right management , Password Policy , Sudo management
Cron Jobs management and implementation
Linux Backup management tools and management.
Candidate should have knowledge on Linux (Both admin and server part).
Clear understanding on Linux internal and external repositories.
Clear understanding on DNS, DHCP, pop3, imap, smtp.
Clear understanding on Storage concepts (ISSCI, Paravirtualized, LUN).
Candidates clear understanding on ESXi HA (Vmotion).
Clear understanding on External MTA (Spam Engine).
Mapping public NS and MX records.
Running security audits on mail servers
Clear understanding on mail archiving concepts.
Hand-on experience on mail migration process (Exchange to Linux, Linux to Linux, Unix to Linux).
Basic Knowledge on shell scripting.
Clear understanding on Openldap.
Clear understanding on SSL Certificate deployment, patching OS, and mail
Perform installation, implementation, customization, operation, recovery and server upgradation. performance tuning.
Review Backup reports and Initiate actions on backup failure against specific documentation. Implement changes, perform security related tasks, identify and recommend improvements to existing processes and procedures. Installation n configuration of Linux Packages/services/softwares.
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