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I am running a Postfix with Dovecot for my emails and also make email accounts for my friends from time to time. So last night a friend of mine asked me to configure an email account for him and forward the emails to his gmail account. It is really easy and quick to Configure Postfix […]
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YUM Repositories are warehouses of RPM package files. RPM file is a Red Hat Package Manager file and enables quick and easy software installation on Red Hat/CentOS Linux distributions. YUM Repositories hold a number of RPM package files and enable your server to download and new software. YUM Repositories can hold RPM package files locally […]
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Configuring Password Policy on CentOS 6 About Password Policy Password policy is a set of rules that must to be satisfied when setting a password. Password policy is an important factor in computer security, specially since user passwords are too often the main reason for computer system security breaches. This is why most companies and […]
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It just so happens, that sometimes you would like to add Windows client to Zenoss monitoring 🙂 . A person would think that this would be quite simple and similar to adding Linux client to Zenoss monitoring, but it is not. The SNMP Windows client Zenoss monitoring is very limited, in fact i could not […]
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I have been getting some questions and emails about problems with adding linux client to Zenoss monitoring as explained in my post on Install Zenoss Monitoring Server on CentOS 6. I decided to post the SNMP daemon configuration i use, to add linux client to Zenoss monitoring server and write in general how to get […]
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The Apache Server Status module is an addition to Apache HTTP Server. It is a module that enables insights into the Apache HTTP Server performance and statistics. On CentOS Linux, Apache Status module is provided by the httpd RPM package, so if you are running Apache, this module is already installed and wait for it […]
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Cron is a daemon on linux and unix based operating systems. Cron is a job scheduler which we can be used to configure jobs or run commands at a specific time in a day, month or year. Cron is quite configurable enabling us to run jobs and commands periodically, at fixed times or dates and also […]
This is the next post in a series of posts about PostgreSQL and is actually a continuation from post on “PostgreSQL Create User – Manage Users“. If you followed my post on “PostgreSQL Create User – Manage Users” then you successfully created your firstPostgreSQL users and also assigned them desired rights and privileges. The next step is to […]
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As promised in one of the previous posts on “Install PostgreSQL Database on CentOS 6” here is a post describing how to manage PostgreSQL users (PostgreSQL create user, delete user, …). By now you have probably successfully installed and started PostgreSQL server on your linux machine, but empty PostgreSQL server is not useful in any way. The next […]
Want to install and configure Postfix with Dovecot on CentOS 6? Or are you wondering whatPostfix orDovecot is? In case you are wondering (i hope not, since you stumbled on this page), Postfix is a mail server or a bit more fancy word for it – Mail Transfer Agent (MTA). Actually MTA tells you what this application does. It transfers the […]
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If you have a Linux server out there somewhere in the internet, you probably want to secure it and reflect some of the most common attacks to your server. If you are just starting out with your first server you must know, your server will be attacked. There are automated bots and scripts that scan […]
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IPTables is a service on linux systems, which allows a system administrator to configure rules and chains in tables provides by the Linux kernel firewall. IPTables is a Linux firewall service which enables you to accept, reject or drop (,…) packages based on the rules you applied. In this post we will learn how to cofigure iptables […]
