How To Install Git on Ubuntu 12.04

Introduction

Git is an open source, distributed version control system (VCS). It’s commonly used for source code management (SCM), with sites like GitHub offering a social coding experience, and popular projects such as Perl, Ruby on Rails, and the Linux kernel using it.

Pre-Flight Check
  • These instructions are intended for installing Git on Ubuntu 12.04.
  • I’ll be working from a Liquid Web Core Managed Ubuntu 12.04 server, and I’ll be logged in as root.

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How to Install Git on CentOS 6

Introduction

Git is an open source, distributed version control system (VCS). It’s commonly used for source code management (SCM), with sites like GitHub offering a social coding experience, and popular projects such as Perl, Ruby on Rails, and the Linux kernel using it.

Pre-Flight Check
  • These instructions are intended for installing Git on CentOS 6.
  • I’ll be working from a Liquid Web Core Managed CentOS 6.5 server, and I’ll be logged in as root.

Continue reading “How to Install Git on CentOS 6”

Updating an A record from Command Line

Domain Name Service, or DNS, can be one of the most be one of the more complicated concepts in server administration. This article will walk through changing an A record from the Linux command line.
This article assumes that you are running BIND on a linux server, that you already have an understanding of what DNS is, the different types of DNS entries, and how DNS works. Please note: The incorrect editing of your zone file can take your site offline. All editing must be done on the authoritative nameservers for the given domain.

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Digging Into Exim Mail Logs With Exigrep

Perhaps a particular domain on your cPanel server has stopped receiving e-mail. Or, an address on your domain is able to receive e-mail, except from your supplier. Maybe you can receive e-mail just fine, but are receiving error message bounce-backs from Yahoo. How are you going to get the fine-grained information you need to figure out just what is going on?

The answers you seek can be found in exim’s logs.

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How To: Lowering Your DNS TTLs

Whenever making DNS changes, lowering your TTLs (Time To Live) 24 hours ahead of time will reduce the amount of time that your change takes to propagate.
This article assumes that you are running BIND on a linux server, that you already have an understanding of what DNS is, the different types of DNS entries, and how DNS works. Please note: The incorrect editing of your zone file can take your site offline. All editing must be done on the authoritative nameservers for the given domain.

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How to use Grep

Imagine you have a file. Perhaps it is a log file. It is long, and has much information in it. And buried somewhere in that file, there is one piece of information that you need to find. It would take far too long to read through the huge file. This situation cries out for some faster method of extracting that piece of information.

For this very task, Linux provides us grep.

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