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Booting Tasks
Read – Unexpected Server Reboots of RHEL servers on HP
Read – Linux Admin Reference – RedHat Linux Grub Loader
Storage Responsibilities
Read – Understand Device Mapper and DM-Multipath
Read – Identifying Disk Errors in Linux
Read – Identify if linux was installed on a hardware RAID
Read – Creating New Partition table and Filesystem on SAN disk
Read – How to dynamically add LUN’s to Qlogic HBA
Read – Dynamically add/remove scsi from linux
Read – Volume manager Migration from LVM to VxVM in Linux
Read – Configuring DM-Multipath for EMC Clariion SAN Storage
Read – Device Mapper Multipath ( DM-Multipath) Configuration
Read – Unable to get EMC storage Lun’s visible under veritas control in Linux
Read – ISCSI Lun resize in RHEL 6
Read – Configuring ISCSI Server and Client in RHEL6
Read – Investigate a SCSI disk error from Linux
LVM Related Operations
Read – Migrating LVM2 volumes from RHEL 5 to RHEL 6
Read – How to recover a deleted Logical volume in RHEL 5/6
Read – Online configuration of new SAN disks to create new sybase raw volumes, using LVM.
Read – Linux LVM Commands Usage examples
Read – LVM Quick Reference
Read – Cleaning UP stale storage Devices from LVM, after Storage Reclaim
Read – How to recover a deleted Logical volume in RHEL 5/6
Virtualization Tasks
Read – Adding a Second NIC for an active Guest Linux VM ( VMWARE)
Read – Add additional storage and extend Logical Volume in a VM
Read – How to hot plug memory on VMWARE/Virtual RHEL7 Guests
Linux Troubleshooting Tasks
Read – Network Troubleshooting Reference – 1
Read – Networking Troubleshooting Reference – 2
Read – Network Physical Connectivity Check for Solaris and Linux
Read – Collecting RedHat Diagnosis report for the Support Call purpose
Read – Root Password Reset in RHEL
Read – Examining Red Hat Linux kernel state using Sysrq key combinations
Read – Crash Dump capturing for Red Hat Linux
Read – Creating Centralized Crash Analysis Server for RHEL Environment
Read – Kdump Configuration in RHEL5/6/7
Read – Is your Redhat Linux Environment ready for Leap Second Insertion on Jun 30, 2015 ?
Linux File System Operations
Read – Red Hat Linux Troubleshooting – File system Errors
Read – Basis Filesystem Management in Linux
Linux Service Management
Read – inetd Vs xinetd in linux
Read – Ten most frequently used Linux networking services, in enterprise unix networks
Linux Networking Related Tasks
Read – Understanding Network VLANs
Read – What is Multicast and how to configure Network interface with Multicast Address in RHEL
Read – How to deal with “CLOSE_WAIT” and “TIME_WAIT” connection in RHEL
Read – Network Bonding Reference ( RHEL5 / RHEL6)
Read – Linux : NTP Error Message “kernel time sync error 0001”
Linux Error Log Analysis
Read – Configuration of Syslog and Rsyslog – Redhat Enterprise Linux
Read – How to Configure for Daily log rotate for /var/log/messages
Read – Configuring Auditd in RedHat Enterprise Linux
Linux Kernel Configuration Tasks
Read 32bit mode vs 64bit mode – Redhat Enterprise Linux
Read How to set kernel parameters in Redhat Enterprise Linux and Suse Linux
Read Quick Overview of the Kernel Parameters related to Network Tuning in RHEL4/5/6
Read Troubleshooting Kernel Panic issues in RHEL– Part 2
Read Kernel Panic and System Crash in RHEL6
Read Overview of Red Hat Enterprise Linux Kernel
Read Setting Kernel Parameters in RHEL6
Linux Software Management Tasks
Read – Yum Quick Reference – Redhat Enterprise Linux
Read – How to hide username list on GNOME login Screen in RHEL7
Linux Performance Monitoring and Tuning
Read – How to disable transparent hugepages (THP) in RHEL7
Read – Controlling Cache Memory / Page Cache Size in RHEL6
Read – Understanding Linux Hugepages in RHEL6
Read – How to Write Custom Udev rules in RHEL6/RHEL7
Read – Configuring PXE server for UEFI boot for RHEL6/RHEL7
Linux Network Servers Configuration
Read – Chroot FTP Services in Red Hat Enterprise Linux
Read – FTP/SFTP Services in Red Hat Enterprise Linux
Read – SUDO Configuration in RedHat Enterprise Linux
Read – Sendmail Issues in Redhat Enterprise Linux
Read – Configuring LAMP STACK for Web Applications in RHEL6- cookbook
Read – Mysql on Redhat Enterprise Linux
Read – NTP Configuration and Troubleshooting in RHEL
Read – LDAP-Part 1 : Implementation of LDAP Authentication in RHEL 6.3
Read – LDAP-Part 2 : Configuration of Certification Authority for LDAP encryption in RHEL 6.3
Read – LDAP-Part 3 : LDAP Configuration With Encrypted Communication using TLS/SSL in RHEL 6.3
Read – LDAP-Part 4 : Troubleshooting in RHEL 6.3
Read – Linux Samba Server integration with Windows Active Directory – Part 1
Read – Linux Samba Server integration with Windows Active Directory – Part 2