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Tag: CentOS

Zimbra 8 Community edition on Scientific Linux 6 (64 Bit)

Rumi, September 15, 2012September 15, 2012

Install SL 6.3 (64 bit) Installing SL6.3 (64bit)  with 'minimal' installation mode Post installing, fix with the Static IP Address (Public IP and I assume the system is not behind firewall) Double check with /etc/resolv.conf file parameters Prerequisites for ZImbra installation Let's firsy update- yum update Let's install some pckages…

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Redhat/CentOS install PHP on NginX server as fastcgi

Rumi, August 26, 2012

tep # 1: Enable EPEL repo ngnix is not included in the base system. Turn on EPEL repo to install nginx stable release: # rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/$(uname -m)/epel-release-5-3.noarch.rpm Step # 2: Install ngnix Type the following command at a shell prompt: # yum install nginx Sample output: Loaded plugins: downloadonly,…

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Install Zimbra on Centos 5 Step by step

Rumi, August 24, 2012August 24, 2012

Zimbra is a suite of tools for Unix/Linux/MacOS systems, which includes a secure mail server, web mail, anti-spam/anti-virus controls, a Web management interface, integrated calendaring, mobile device sync, and more. In many ways, Zimbra is the Unix equivalent to Microsoft Exchange.   In this post, I will be installing Zimbra…

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Install Perl CPAN on CentOS troubleshooting Net::LDAP

Rumi, June 20, 2012June 20, 2012

First we need to make sure our perl modules are all there and up to date. We can do this easily by Running perl -MCPAN -e –shell Let it run. Answer “no” when it asks about Manual configuration.   Once it stops you'll be at the cpan prompt….type install Bundle::CPAN this will…

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Step by Step Zimbra 6.x installation on CetOS 5.x

Rumi, June 11, 2012June 11, 2012

First you need to install a fresh CentOS operating system, keeping almost everything as default state. In this installation note I'm assuming few things- There is either a LARGE '/' partion or a LARGE '/opt' partition. Zimbra by  default is installed on /opt directory I'm also assuming that the server…

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Running Zimbra on HTTPS

Rumi, June 11, 2012

1. First you need to su as 'zimbra' user 2. go to /opt/zimbra/bin/ 3. Use the following commands to enable SSL: ./zmtlsctl https ./zmcontrol restart Now it's working like a charm. For other readers: I can only access to webclient by SSL now (but that's ok for me). other options…

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mod_jk for RHEL6

Rumi, April 20, 2012

  If you have a RHEL6 box which ships both Apache and Tomcat6 you might want to connect the two together. You probably have looked around for mod_jk as a RHEL6 RPM or SRPM (src.rpm). You find that It isn't in EPEL, and it isn't in Red Hat Optional Server…

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CentOS – Enable or Disable SELinux in command interface

Rumi, December 14, 2011

From the command line, you can edit the /etc/sysconfig/selinux file. This file is a symlink to /etc/selinux/config. The configuration file is self-explanatory. Changing the value of SELINUX or SELINUXTYPE changes the state of SELinux and the name of the policy to be used the next time the system boots. [root@host2a…

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VBoxHeadless – Running Virtual Machines With VirtualBox 4.0 On A Headless CentOS 5.6 Server

Rumi, December 14, 2011December 14, 2011

This guide explains how you can run virtual machines with VirtualBox 4.0 on a headless CentOS 5.6 server. Normally you use the VirtualBox GUI to manage your virtual machines, but a server does not have a desktop environment. Fortunately, VirtualBox comes with a tool called VBoxHeadless that allows you to…

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Postfix Configuration on Centos 5.x

Rumi, December 5, 2011

Let's install Postfix and Dovecot (Dovecot will be our POP3/IMAP server): yum install cyrus-sasl cyrus-sasl-devel cyrus-sasl-gssapi cyrus-sasl-md5 cyrus-sasl-plain postfix dovecot Next we configure SMTP-AUTH and TLS: postconf -e 'smtpd_sasl_local_domain =' postconf -e 'smtpd_sasl_auth_enable = yes' postconf -e 'smtpd_sasl_security_options = noanonymous' postconf -e 'broken_sasl_auth_clients = yes' postconf -e 'smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination'…

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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 squid SSH SSL Ubuntu Ubuntu 16 Ubuntu 18 Ubuntu 20 Varnish virtualbox vpn Webmin XCP-NG zimbra

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