Category: Linux

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Setting Up Logrotate on RedHat Linux

1. Introduction Logrotate is a utility designed for administrators who manage servers producing a high volume of log files to help them save some disk space as well as to avoid a potential risk...

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How to encrypt a partition with Cryptoloop on Linux

1. Introduction This article will describe how to encrypt entire partition with a Cryptoloop. Cryptoloop is a disk encryption module for Linux. It was first introduced in the 2.5.x kernel series. Cryptoloop has an ability...

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How To Configure Network Bonding on Debian

Bonding This article will show how to “bond” two Ethernet connections together to create an auto failover interface. Installation First install the ifenslave-2.6 package, necessary to enable bonding: apt-get install ifenslave-2.6 Shutdown / Unconfigure Existing Interfaces...

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Using OpenSSL to encrypt messages and files on Linux

1. Introduction OpenSSL is a powerful cryptography toolkit. Many of us have already used OpenSSL for creating RSA Private Keys or CSR (Certificate Signing Request). However, did you know that you can use OpenSSL to...

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Linux finding text inside files

Well this one is just so I remember how to do this, I keep forgetting the exact syntax and have to look it up on other sites, so if I put it on mine...

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Bacula – Performance Tunnig With Postgresql

Currently i have one Linux server that hosts about 300 clients backups, the storage size is about 1 PentaByte. I want to share some experiences about Bacula Backups system  in large deployment enviroment. 1....

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Bacula – How To Install Bacula Backups + Postgresql on CentOS 5

1. Install Remmi Repository wget http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpm wget http://rpms.famillecollet.com/enterprise/remi-release-5.rpm rpm -Uvh remi-release-5*.rpm epel-release-5*.rpm 2. Install Postgresql yum –enablerepo=remi install postgresql84 3. Edit the start-up script vi /etc/rc.d/init.d/postgresql 4.Change the PGDATA and PGLOG variable to wherever...

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How to Create a Partition Size Larger than 2TB ON LINUX

Linux desktop user generally uses small hard disk and partition, but on server you need a large partition. For example, you cannot create 4TB partition size (RAID based) using fdisk command. It will not...

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How to Add I New disk To LVM

Suppose the Disk is /dev/sdb, the second scsi disk, fdisk /dev/sdb create as many partitions as you need using command n Label them with command “t” as “8e” for making it Linux LVM Write...