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Linux Systems Administrator / Engineer← All Jobs

2016-05-09 | Woonsocket , RI | Negotiable | 6 Months Contract


Description Sponsored:

 Administration of SUSE Linux systems
 SUSE SLES 11 - SysV/init boot configuration
 SUSE SLES 12 - systemd boot management
 Software installation & configuration
 Installing System updates vi YaST/Zypper
 Experience with Ubuntu Desktop, RHEL, CENTOS, or other Linux is a plus but not needed.

Linux OS management

 sudo
 cron
 syslog/rsyslog
 using RPM to install packages
 using zypper to install packages
 setting file permissions
 using ACLs/ACEs to manage file/directory access
 differentiate between hard links vs soft links

Linux boot process

 understanding the boot process; what files, directories are used and how
 troubleshooting boot issues
 boot alternate operating systems
 boot alternate disks
 MBR partitioning
 GRUB
 GPT partitioning GRUB2

Virtualization

 Ability to build and maintain VMs builds using KVM / QEMU
 Familiar with the creation of virtual machines & OS installation on VMguests
 Familiar with allocating resources to virtual machines
 Familiar with templates and cloning
 Familiar with the configuration of datastores
 Familiar with Network Bonding
 Familiar with Pass-through devices
 VMware installation, configuration (this is a nice to have, possible future project 2016-Q4)
 -Vsphere
 -Vswitches
 -Installation and configuration of ESXi

LVM - Logical volume manager

 add/expand/configure disks with LVM
 disk partitioning with FDISK
 disk partitioning with PARTED

Scripting

 Extensive knowledge of BASH required
 Prior experience writing bash scripts with 1000’s lines of code.
 BASH functions, loops, command line arguments
 Usage of AWK, SED, PERL, pipes
 Good knowledge of regular expressions
 Script debugging

Networking

 Configuring network interfaces
 system files which affect network configuration
 Troubleshooting network connectivity issues
§ ping
§ traceroute
§ TCP vs UDP
§ tcpdump
§ netstat
§ sockets
§ routing
§ firewalls / iptables
 Understanding of Network Address Translation (NAT/PAT firewall configuration.)
 Understanding Network Masks and CIDR Notation

DNS

 Configuring & managing DNS/BIND
 Conditional forwarding
 Master/Slave configurations

DHCP

 Installing, configuring DHCP on Linux
 dynamic dhcp pools

SQUID proxy

 installation & configuration
 caching only proxy server

MySQL/MariaDB

 installation & configuration of a db
 backup & restore
 simple SQL queries

Apache

 installation & configuration
 integration with tomcat
 SSL certificates
 configuring virtual hosts
 security considerations
 generating key files, CSRs, self signed certificates

Tomcat

 installation & configuration
 SSL certificates

NTP

 configuration
 validation
 peers
 servers
 synchronization

SSH

 configuration:
§ which files are used by ssh,
§ what is the purpose of these
 private / public key generation & management
NFS

 sharing files/directories to specific clients
 security condisderations
 NFSv3 vs NFSv4

CUPS

 configuration
 managing printer queues
 remote printing
 troubleshooting printer subsystems.

Troubleshooting

 disk failure
 filesystem failure
 network failure

Hardware
IBM Blade Center S

 HS12
 HS23
 AMM
 SCM
 Raid configuration

HP ProLiant DL360 server

 ILO management
 Raid configuration

Nice to have:

• Has implemented/managed/used any of:
• Chef, Puppet, Ansible, or similar tools for automating system administration task
• Zabbix, Nagios or similar monitoring tool
• Subversion or GIThub version control systems
• sonarQube, Phabricator, Nexus server, Jenkins server, or similar tool
• Experienced working in an environment with hundreds to thousands of Linux systems
• Has personally invested in Linux at home
• Runs Linux on home/personal desktop/laptops
• Runs a Linux server at home
• Media server: video | music sharing
• Home control systems
• File server
• Web server
• Backup server for home desktops


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