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May 7, 2010
Linux – Ethernet bonding
Linux General,Linux bond or team multiple network interfaces (NIC) into single interface We have two Dell servers that need setup with Intel Dual Gig NIC. My idea is to improve performance...
Read moreMay 7, 2010
Linux – Tweaks
Linux General,Fork Bomb on Linux/Unix: Q. Explain following bash code or bash fork() bomb? : () { : | :& };: A. This is a bash function. It gets called recursively...
Read moreMarch 24, 2010
How to identify CPU resource problem?
Linux/Windows Support,vmstat command helps us to determine if a server is running short of CPU resources. First, let us determine the number of CPUs available Linux: $ grep -i processor /proc/cpuinfo...
Read moreMarch 16, 2010
Extract the contents of an RPM
Linux General,Using rpm2cpio command, the contents of an RPM package can be extracted without having to install the package. For source RPMs too this command can be used. This is illustrated...
Read moreMarch 16, 2010
Nagios Installation and Configuration
Server Management,Nagios Installation in Ubuntu Required Packages Install the following packages on슠 Ubuntu before continuing. Apache 2 PHP GCC compiler and development libraries GD development libraries If not installed, using apt-get...
Read moreMarch 16, 2010
Nagios – An Introduction
Server Management,What is Nagios? Nagios is a framework for setting up monitoring of hosts, services, and networks . What are the components of Nagios? nagios the main server software and...
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Firewall – Reject or Drop a packet
Linux/Windows Support,Firewall Reject or Drop a packet While setting up firewall rules, the biggest question that arises while blocking a packet is, whether to reject or drop that packet. Reject...
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HTTP Response Status Codes information
HTTP/WebServer,The HTTP status codes are divided into categories based on the first digit in the code Code Category Type Code Category Type 1nn Informational 2nn Success 3nn Redirection 4nn Client...
Read moreMarch 13, 2010
Difference between Buffer and Cache
Linux General,Buffers are allocated by various processes to use as input queues, etc. Most of the time, buffers are some processes' output, and they are file buffers. A simplistic explanation of...
Read moreMarch 13, 2010
Memory Usage in Linux
Linux General,Check the memory usage on a linux system with the command given below. The free command helps in getting the memory usage in the system [rams@stopprepare-lx ~]$ free -m total...
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