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Category: Configurations (Linux)

Migrate hosting sites from one VestaCP to another VestaCP

Rumi, November 12, 2017

Lately, I was trying to migrate vesta hosted sites from one server to another. This trick might help to those who- Either tried to update IP (after tried with so many vesta forum links!) and failed or Have installed on a physical computer and need to move out sites on…

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Enable root logins using ssh in Debian 8.0

Rumi, October 28, 2017

By default you can no longer login using ssh as root with just a password since it is more secure to use a pre-shared key. However, you can you can still enable root logins using password authentication. To do this you need to edit the ssh config file ‘/etc/ssh/sshd_config/sshd_config’ as…

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Add Linux machine on LibreNMS

Rumi, October 28, 2017

Install SNMPD first SNMPd is not installed by default. You must first install snmpd. apt-get update apt-get install snmpd lsb -y Backup default snmp.conf file on the ‘/etc/snmp/’ directory and copy new one from the librenms directory. mv /etc/snmp/snmpd.conf /etc/snmp/snmpd.conf.asli cp /opt/librenms/snmpd.conf.example /etc/snmp/snmpd.conf or instead copy-paste below snmpd text

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Phpvirtualbox fix on 5.1 using 5.0

Rumi, October 12, 2017October 12, 2017

I was able to get v5.0-5 working with vbox 5.1 by commenting out the version check line and replacing it with a static value in the endpoints/api.php file: // $response[‘data’][‘responseData’][‘phpvboxver’] = @constant(‘PHPVBOX_VER’); $response[‘data’][‘responseData’][‘phpvboxver’] = “5.1-0”; Src: https://sourceforge.net/p/phpvirtualbox/discussion/general/thread/565b7f31/

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Perfect Backup MX using Postfix

Rumi, October 12, 2017

This is quite simple, and with a very simple setup, and does not require that much, since we do not need to send out e-mails from clients from this server, or use ASMTP. I find that MySQL is not needed here, but could be used. I will use normal flat…

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PHP 7.0 on CentOS/RHEL 6.9 and 7.4 using Yum

Rumi, October 9, 2017October 9, 2017

Before beginning this, it is assumed that you already have installed LAMP on your server. To install, first you must add the Webtatic EL yum repository information corresponding to your CentOS/RHEL version to yum: CentOS/RHEL 7.x: rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm CentOS/RHEL 6.x: rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpm…

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Perfect Squid with Transparent proxy and SSL log

Rumi, September 5, 2017September 5, 2017

This will be a transparent SQUID proxy for your home or corporate network  ,  it  will transparently  intercept  all  traffic http and https  ,  for  https  you  will  need  to  push  to  clients  the CA certificate of the SQUID server, it  has  been tested to be working without problems with…

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XEAMS mail Server Installation on CentOS 6

Rumi, September 5, 2017September 5, 2017

Installation Instructions Follow the steps below to install Xeams on a Linux machine.Log in as root Download the installer Extract the tar file using the following command tar -xf XeamsLinux.tar Ensure the permissions for Install.sh is set as an executable. If not, use the chmod +x Install.sh command to change…

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Install and configure ClamAV Antivirus on CentOS 6

Rumi, September 5, 2017

Enable EPEL  repository CentOS 6.x 32-bit: # rpm –ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm CentOS 6.x 64-bit: # rpm –ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm Check the repository list.

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Publishing long domain key SPF TXT records in bind9

Rumi, September 5, 2017

If your bind is throwing error with long TXT data, you can do the following means to concatenate: You are using commas to separate your key/value pairs in your record instead of semi-colons. Change it to: a9d04665528b593d263a6e5256648c99._domainkey IN 1800 TXT ( “k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz2/ZfhxSI/A” “bqgh0amM8ylrlosirWeKShUhq7fg12aYmRwOqq9hIzO0Fcz1BzfgHVu6HU++rC5” “QoUK0JQK/nk4jwkDgvG2di2ZYmAvEbY/VeiK1x/TG0p1Iczr2k6Bj0gEAb/YGD2” “YbwrwAi4bDXwoPsYuuNn9TB3jjyWKu/dvOsqhff1/4Wc+FkOi0ClvgrXiklN28X” “TLjyjSyU794ntIoegXxrfwcwkhfPMvuqcnhfIC0Z8L71M4WR4SoHyNHVfBtNlUv” “VNROiXlMxtxnNQvfViSwz6LC8bYIxeAba3hSXPTChKu3qZtfR0o3jFwEWAfLQdg” “Ixler0jMEoAyJmfQIDAQAB”)  

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Myself…

Hi, I am Hasan T. Emdad Rumi, an IT Project Manager & Consultant, Virtualization & Cloud Savvyfrom Dhaka, Bangladesh. I have prior experience in managing numerous local and international projects in the area of Telco VAS & NMC, National Data Center & PKI Naitonal Root and CA Infrastructure. Also engaged with several Offshore Software Development Team.

Worked with Orascom Telecom-Banglalink, Network Elites as VAS partner, BTRC, BTT (Turkey) , Mango Teleservices Limited and Access to Informaiton (A2I-UNDP)

Currently working at Oracle Corporation as Principal Technology Solution and Cloud Architect.

You can reach me [h.t.emdad at gmail.com] and I will be delighted to exchange my views.

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Apache Bind Cacti CentOS CentOS 6 CentOS 7 Debain Debian Debian 10 Debian 11 Debian 12 DKIM Docker endian icinga iptables Jitsi LAMP Letsencrypt Linux Munin MySQL Nagios Nextcloud NFS nginx pfsense php Postfix powerdns Proxmox RDP SSH SSL Ubuntu Ubuntu 16 Ubuntu 18 Ubuntu 20 Varnish virtualbox vpn Webmin Windows 10 XCP-NG zimbra

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