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  • Completely remove package on Ubuntu / Debian by apt-get
    Linux

    Completely remove package on Ubuntu / Debian by apt-get

    BySharad Chhetri February 22, 2015December 10, 2024

    This is a quick post to completely remove package on Ubuntu by apt-get command.Apt-get (Advanced Packaging Tool ) is a command line tool to manage the packages on Ubuntu / Debian system. Remove the package on Ubuntu/Debian Generally remove is the option used with apt-get command. But it do not remove the config files associated…

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  • Prevent starting service after package installation on Ubuntu / Debian
    Linux

    Prevent starting service after package installation on Ubuntu / Debian

    BySharad Chhetri February 21, 2015December 10, 2024

    In this tutorial we will learn, how to prevent starting service after package installation on Ubuntu / Debian . In simple way, we will use the policy.rc.d to control the behavior of invoke-rc.d for every initscript id and action . We will create a executable script called policy.rc.d and write the exit code 101 in…

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  • Install and compile Nginx
    Linux

    Install Nginx from source code on Ubuntu 14.04 LTS

    BySharad Chhetri February 21, 2015December 14, 2024

    Nginx, it is one of the awesome open source package which is used for webserver, loadbalancer, reverse proxy server for HTTP, HTTPS, SMTP, POP3, IMAP and HTTP cache server . It is best known for handling the C10K problem . In this post we are writing on , how to install Nginx from source code…

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  • WARNING: getfattr not found, certain checks will be skipped
    Linux

    WARNING: getfattr not found, certain checks will be skipped

    BySharad Chhetri February 17, 2015December 10, 2024

    While mounting the Gluster Volume into Ubuntu 14.04 client, recently met with warning that is “WARNING: getfattr not found, certain checks will be skipped..” . We are writing this quick solution for this warning. As the WARNING itself speaks about getfattr not found. So we will work on to get this command on our system….

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  • How to create OpenSSH rpm package and its upgrade
    Linux

    How to create OpenSSH rpm package and its upgrade

    BySharad Chhetri January 18, 2015December 10, 2024

    In this tutorial we will create rpm package of OpenSSH version 6.7 stable version and will do OpenSSH upgrade. You may be wondering why it is required to create rpm package of OpenSSH version. The answer is because of CVE-2014-2532 . We recently notified with the CVE-2014-2532 , which is a openssh AcceptEnv environment restriction…

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  • error: Could not load host key
    Linux

    error: Could not load host key

    BySharad Chhetri January 17, 2015December 10, 2024

    Recently while upgrading the OpenSSH server, we faced some issue. This time, the issue was related to ssh key and we got number of lines in message log file with information – “error: Could not load host key” . Here are some brief detail taken from our system. Jan 17 11:14:10 localhost sshd[6294]: error: Could…

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  • error: Could not get shadow information for root
    SSH

    error: Could not get shadow information for root

    BySharad Chhetri January 17, 2015December 10, 2024

    Recently created rpm package from OpenSSH 6.7 tar ball package. After successfully creating rpm and upgrading the OpenSSH server, met with issue – error: Could not get shadow information for root .Given below is some section of the error found in messages log (/var/log/messages)Jan 17 11:21:17 localhost systemd: Started SYSV: OpenSSH server daemon.Jan 17 11:21:26…

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  • How to upgrade Mariadb 5.5 to Mariadb 10.0 on CentOS 7 / RHEL 7
    Linux

    How to upgrade Mariadb 5.5 to Mariadb 10.0 on CentOS 7 / RHEL 7

    BySharad Chhetri January 6, 2015December 10, 2024

    In this tutorial we will learn, how to upgrade Mariadb 5.5 to Mariadb 10.0 on CentOS 7 / RHEL 7 . We will use yum command in this practical. We will also include preliminary exercises should be done while upgrading MariaDB 5.5 to MariaDB 10.0 . MariaDB is a fork of MySQL Database. And now…

    Read More How to upgrade Mariadb 5.5 to Mariadb 10.0 on CentOS 7 / RHEL 7Continue

  • Install bugzilla with MySQL 5.6 on Ubuntu 14.04 LTS server
    Linux

    Install bugzilla with MySQL 5.6 on Ubuntu 14.04 LTS server

    BySharad Chhetri January 4, 2015December 10, 2024

    Introduction In this tutorial we will learn, how to install bugzilla with MySQL 5.6 on Ubuntu 14.04 LTS server. Bugzilla famously known as bug tracking tool and it is a Mozilla project. Details of practical environment Server : AWS Ubuntu 14.04 LTS Server InstanceBugzilla Version : bugzilla-4.4.6Web Server : Apache 2.4Database Server : MySQL 5.6…

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  • Disable user self registration in Bugzilla
    Linux

    Disable user self registration in Bugzilla

    BySharad Chhetri January 4, 2015December 10, 2024

    This is a quick post on how to disable user self registration in Bugzilla. It is very important to disable user self registration otherwise in publicly faced bugzilla anyone can register for new user and will login into bugzilla. Bugzilla is one of the famous web based bug tracking tool. Note: Practical Applied on bugzilla-4.4.6…

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  • Change path of tmpdir in MySQL Server On Ubuntu
    Linux

    Change path of tmpdir in MySQL Server On Ubuntu

    BySharad Chhetri December 27, 2014December 10, 2024

    Introduction The post will explain , how to change the tmpdir in MySQL Server on Ubuntu. In the temporary directory for MySQL, generally temporary tables are stored. We generally change its path to make our mysql server performance better. Practical Tested On : It will works for other MySQL and Ubuntu version also.Our testing inventory…

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  • Install Revive adserver on Ubuntu 14.04 LTS
    Linux

    Install Revive adserver on Ubuntu 14.04 LTS

    BySharad Chhetri December 26, 2014December 10, 2024

    The tutorial will explain, how to install the Revive Adserver on Ubuntu. Revive adserver is free Open Source Ad Server formerly known as OpenX Source . Generally the servers are used by many website and blogs.

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  • How to install Varnish 4 version on CentOS 7 / RHEL 7
    Linux

    How to install Varnish 4 version on CentOS 7 / RHEL 7

    BySharad Chhetri December 20, 2014December 10, 2024

    In this tutorial we will learn, how to install Varnish 4 version on CentOS 7 / RHEL 7 . Varnish is populalry known for Frontend Web Cacheing software. Whereas it can also be used as loadbalancer. Recently , the Varnish version 4 is released, which comes up with new features and also new syntaxes/parameters. The…

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  • Find date of expiry and issue of SSL certificate with command
    Linux

    Find date of expiry and issue of SSL certificate with command

    BySharad Chhetri December 18, 2014December 10, 2024

    In this post we will know about how to find date of expiry and issue of SSL certificate with command line. As a system administrator it is good to know how can we get the ssl certificate information with command line. It helps you to make script and run from terminal/cron job etc. We have…

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  • Find Linux Operating System architecture installed on system
    Linux

    Find Linux Operating System architecture installed on system

    BySharad Chhetri December 17, 2014December 10, 2024

    In this post we will quickly share the commands, which will help to find linux operating system architecture installed on system. Most of the time system admin or linux user requires to know which Linux OS architecture is installed. Mostly , while installing or developing the package or software we need this information. Whereas it…

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