In Linux and UNIX in general, services are configured using various text files,in the /etc/ directory trees. A typical server system could have dozens of configuration files. It is important that you check the validity of the configuration file. In some cases it is possible to to check the sanity of the special data (such as keys) or directories (such as /var/lib/cache/). Text files are easier to manage remotely. You can use ssh and a text editor. If there is an error in configuration, server may not start. This may result into a disaster. In this article I will explains howto find out a syntax error for popular servers and test configuration file for syntax errors.
Debian version 5.0 has been released. It is recommended that you upgrade the system to latest version. Upgrading remote Debian server is a piece of cake. In this tutorial, you will learn about upgrading Debian Linux server from Etch to Lenny over ssh session.
The second of two planned Release Candidates for the FreeBSD 7.2-RELEASE cycle is now available. ISO images for Tier-1 architectures are now available on most of the FreeBSD mirror sites. The freebsd-update(8) utility supports binary upgrades of i386 and amd64 systems running earlier FreeBSD releases. Systems running 7.0-RELEASE, 7.1-RELEASE, 7.2-BETA1, or 7.2-RC1 can upgrade as […]
An updated caching-nameserver package that fixes a bug is now available for RHEL AS 4.x / CentOS 4.x Linux server.
AWStats is a free powerful tool that generates advanced web, streaming, ftp or mail server statistics, graphically. This log analyzer works as a CGI or from command line. This document describes awstats configuration.
How do you find out that somebody has accessed your system and changed your configuration or security settings? How do you verify file content? There is no simple answer to these questions. Personally, I use specialized tool such as tripwire and combination of perl / shell script, UNIX command line utilities. Examine methods of storing […]
CentOS / Fedora Core / RHEL 5 uses yum for software management. Yum allows you to add a new repository as a source to install binary software. Understanding yum repository yum repository configured using /etc/yum.conf file. Additional configuration files are also read from the directories set by the reposdir option (default is /etc/yum.repos.d and /etc/yum/repos.d. […]