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Linux
  • Initial page
  • Monitoring Server Load
  • Untitled
  • Untitled
  • Server Load
    • What is a high load average?
    • Diagnosing load problems with top
    • Diagnosing I/O wait issues
    • Diagnosing high user time
    • Diagnosing out-of-memory issues
    • Diagnosing High I/O Wait
    • iostat
    • Troubleshooting high load after the fact
  • The Boot Process
    • The Boot Process
      • BIOS
      • GRUB
      • The Kernel and Initrd
      • Initrd
      • /sbin/init
      • System V Init
      • /etc/init.d
      • Runlevels
      • /etc/rc*.d
      • System V init boot process
      • System V issues
      • Upstart
  • The Filesystem
    • Directories
    • /etc/shadow
  • Common Commands
    • Common Commands
    • CURL
    • POWERMT
    • LSPCI
    • TCPDUMP
    • LSOF
    • IFCONFIG
    • PING
    • TRACEROUTE
    • NETSTAT
    • DIG
    • NSLOOKUP
    • ROUTE
    • HOST
    • ARP
    • ETHTOOL
    • IWCONFIG
    • HOSTNAME
    • NSTAT
    • SAR
  • Networking
    • How to configure bonding
    • using ifenslave to configure bonding
    • Common Network Troubleshooting tools
    • more ways to configure bonding
    • nic bonding
    • Ethernet Settings
    • IPTABLES
  • Network Troubleshooting
    • Untitled
  • Clusters
    • RHCS
      • RHCS Commands
      • Cluster Suite Components
      • Types of HA clusters
      • Fencing
      • Quorum
      • GFS and Locking
      • Testing a RHCS cluster
    • PCS
      • more pcs
      • PCS Commands
  • Patching
    • Untitled
    • RHEL 5 yum rollbacks
    • How to tell if a server is vulnerable to a CVE
    • RPM check for security updates
  • Storage
    • How to scan a newly assigned LUN in multipathd in CentOS / RHEL
    • Scanning LUNs
    • Rescan SCSI bus on Linux
    • How to check HBA firmware and Driver version
    • How to add a scsi device in rhel 6 without reboot
    • How to find WWN and check connectivity status
  • Mail
    • DomainKeys and DKIM
    • Postfix
    • Dovecot
    • Untitled
  • Bash Scripting
  • Xtrabackup
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