Category: Linux Troubleshooting

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Linux Admin Reference – Configuring Auditd in RedHat Enterprise Linux

Guidelines to Implement Audit Rules: – Consolidate your rules where possible. – The system call rules are loaded into a matching engine that intercepts each syscall that all programs on the system makes. – It is very important to only use syscall rules when you have...

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Linux Admin Reference – Network Bonding – Redhat Enterprise Linux ( RHEL5 / RHEL6)

  Bonding is a feature that can be enabled bu the Linux kernel, to allow system administrators to combine two or more network interface to form a single, logical “bonded” interface, for redundancy or increased throughput purpose. We can configure Linux bonding in 7 different modes. The behavior of the...

Linux Administration Information Center

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...

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Linux Network Troubleshooting

Network connection problems include slow connections, as well as complete loss of connectivity. Factors that may cause slow connectivity include incorrectly configured domain name system (DNS) settings, inefficiently configured routing tables, inferior cabling, overloaded servers, and network congestion. The same set of factors, as well as...

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Network Physical Connectivity Check for Solaris and Linux

Network connectivity checks For the server without OS  ( just Racked hardware and powered up)   For X86 Hardware We have to make LED checks – like when we disconnect the cable at the server side / switch side the Link / Act LEDs should lit...

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