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How to configure and setup postfix mail transfer agent on ubuntu
Published on 18-Oct-2019 15:58:42
In this article, we will learn how to configure and install the most popular open source MTA (Mail Transfer Agent) Postfix, which can be used to route email delivery of the Linux Systems. Based on industry usage and estimates, most of the public mail servers are currently running on Postfix.Installing ...
How to create photography website in a minute or less 2
Published on 18-Oct-2019 15:56:38
All those who are enthusiastic about photography, having a photography website is beneficial as it is a great way to show not only your work to the world but also your talent and commitment to the art of photography. That’s not all, it also helps you to reach your prospective ...
How to setup hostname in centos 7 x or rhel 7 x linux versions
Published on 18-Oct-2019 15:53:33
In this article, we will learn how to change the host name on CentOS 7.x / RHEL 7.0, by default after installation on CentOS 7 or RHEL the default hostname will be localhost.localdomain. This hostname will be used for various services, unlike the older versions we will try to change ...
Openssh security best practices
Published on 18-Oct-2019 15:51:18
Secure Shell or SSH is a cryptographic (encrypted) network protocol operating at layer 7 of the OSI Model to allow remote login and other network services to operate securely over an unsecured network.OpenSSH is a premier connectivity tool for remote login with the SSH protocol. It encrypts all traffic to ...
How to find a list of block devices information
Published on 18-Oct-2019 15:48:06
lsblk command is used to display a list of information about all available block devices. However, it does not give a list of information about RAM disks. Examples of block devices are hard disk, flash drives, CD-ROM. This article explains about how to find a list of block devices in ...
Linux nslookup commands to troubleshoot dns domain name server
Published on 18-Oct-2019 15:16:39
nslookup is a network administration command-line tool available for many computer operating systems for querying Domain Name System (DNS) to obtain domain name or IP address mapping or for any other specific DNS record. This article explains about nslookup command in detail. Nslookup can be run in two modes, Interactive ...
How to use openssl for generating ssl certificates private keys and csrs
Published on 18-Oct-2019 15:09:32
OpenSSL is a CLI (Command Line Tool) which can be used to secure the server to generate public key infrastructure (PKI) and HTTPS. This article helps you as a quick reference to understand OpenSSL commands which are very useful in common, and for everyday scenarios especially for system administrators.Certificate Signing ...
How to use date command in day to day practical usage
Published on 18-Oct-2019 15:07:34
In this article, we will learn about the ‘date’ command in Linux and how to practically use the ‘date’ command in day-to-day usage with some practical examples. The ‘date’ command is used to print or to change the system date and time.General Syntax[root@localhost ~]# date [OPTION]... [+FORMAT] [root@localhost ~]# date ...
How to make twitter bots in less than five minutes
Published on 18-Oct-2019 15:03:25
Did you anytime notice about automatically answering questions posted on Twitter and you desire to make one for yourself? you can do it. We find, Twitter bots not only answering the questions, but it also shares its source. You can copy as well make your own little assistant.Twitter Bots DesignThe ...
How to install guake drop down terminal terminal on ubuntu
Published on 18-Oct-2019 15:00:02
Guake is a drop-down terminal for GNOME and any other desktop. It aims to provide a quick-access terminal, that show/hide on screen with a simple key pressing. Its style of window is based on an fps games, and one of its goals is being easy to reach. Guake is written ...
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