Skip to content
Bots!
Bots!
  • About
    • Myself
    • আমার দোয়া
  • Bookmarks
    • Bookmarks
    • My OCI Bookmarks
    • Useful Proxmox Commands & Links
    • Learning Nano
    • Useful Sites
    • Useful Virtualbox Command
    • Useful MySQL Command
    • Useful Linux Command
    • BTT-CAS
  • Resources
    • Webinar on Cloud Adoption for Project Managers
  • Photos
  • Videos
  • Downloads
Bots!

Category: Networking

Basic Email Server with Postfix, Dovecot and Squirrelmail on CentOS 6

Rumi, August 8, 2019

Step 1 »Before installation assign a static ip and add a host entry for your domain to that IP in the /etc/hosts file like below. 192.168.0.15 tweenpath.net Step 2 » Issue the below command to install postfix [root@mail ~]# yum -y install postfix Step 3 » Now issue the below command to install SMTP…

Continue Reading

Xcode on my Mac Sierra (10.12.6)

Rumi, March 14, 2019

You can get the correct version here at this URL: https://developer.apple.com/download/more/ to download a your version of Xcode you want. Specifically, get 9.2.1. This is the recent version that works with mac OS Sierra. Alternatively, this link works good too- https://xcodereleases.com/

Continue Reading

DNS UDP Load Balancer using Nginx

Rumi, June 14, 2018March 12, 2023

The plan is to build a DNS- UDP load balancer DNS recursive server (actually forwarding service). The design logic is simple- On client side a public recursive+forwarding DNS IP –> hits the Nginx Load Balancers  –> sends traffic to Google Public DNS/IBM Public DNS/Own recursive DNS/OpenDNS. The configuration is quite…

Continue Reading

Configure DHCP Server Step-by-Step config Guide Using Webmin

Rumi, April 30, 2017April 30, 2017

Dynamic Host Configuration Protocol (DHCP) is a client/server protocol that automatically provides an Internet Protocol (IP) host with its IP address and other related configuration information such as the subnet mask and default gateway. In our previous article, you have setup your DNS Server using Webmin, refer below link for…

Continue Reading

How To Transfer Contacts From iPhone To Android (5 Ways)

Rumi, January 7, 2017

Source: How To Transfer Contacts From iPhone To Android (5 Ways)

Continue Reading

MDaemon firewall ports to be opened

Rumi, June 24, 2016

Ports to be opened: SMTP inbound / outbound port – 25 MSA inbound port – 587 ODMR inbound port – 366 SMTP SSL port – 465 ActiveSync port – 80 ActiveSync SSL port – 443 BlackBerry Enterprise Server – 3101 POP3 inbound / outbound port – 110 IMAP inbound port…

Continue Reading

Install webmin on debian 8

Rumi, March 10, 2016

To install webmin on debian 8 just follow this instructions : cd /root wget http://www.webmin.com/jcameron-key.asc apt-key add jcameron-key.asc echo “deb http://download.webmin.com/download/repository sarge contrib” >> /etc/apt/sources.list echo “deb http://webmin.mirror.somersettechsolutions.co.uk/repository sarge contrib” >> /etc/apt/sources.list apt-get update apt-get -y install webmin

Continue Reading

Cacti on Debian (Updated)

Rumi, April 19, 2015April 19, 2015

Downloading Cacti You can download the newest version of Cacti from its website. wget http://www.cacti.net/downloads/cacti-0.8.7b.tar.gz Installing Cacti Install apache webserver with php support, mysql database server, snmp, some php modules and rrdtool. apt-get install apache2 libapache2-mod-php5 php5 php5-cli php5-mysql php5-gd php5-snmp mysql-client mysql-server libmysqlclient15-dev snmp snmpd rrdtool Add a user…

Continue Reading

Enable 1:1 NAT in Iptables

Rumi, April 17, 2015

1:1 NAT maps a single Public IP Address to one of your computer within your local area network (LAN). Unlike port forwarding, 1:1 NAT forwards all ports from one external IP to one internal IP. iptables -t nat -A POSTROUTING -o eth0 -s 192.168.1.2 -j SNAT –to-source 83.229.64.2 iptables -t…

Continue Reading

How to enable Port Forwarding in Iptables

Rumi, April 17, 2015

Port forwarding allows remote computers, for example, computers on the Internet, to connect to a specific computer or service within a private local area network (LAN). Typical applications include the following: Running a public HTTP server within a private LAN Permitting Secure Shell access to a host on the private…

Continue Reading
  • Previous
  • 1
  • …
  • 3
  • 4
  • 5
  • 6
  • Next

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.

Tags

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

Topics

Recent Posts

  • Deploying Pulse Monitoring for Proxmox Cluster Ecosystem February 13, 2026
  • Technitium DNS Web UI Configuration for Primary-Secondary Name Servers February 12, 2026
  • Technitium DNS with Primary-Slave Installation on Debian February 12, 2026
  • Install Docker and Docker Compose in Debian 12 February 5, 2026
  • Install GUI on Debian 12 using CLI February 4, 2026
  • Configuring Multiple PHP Versions on Virtualmin January 30, 2026
  • Deploy a Container TIG (Telegraf, InfluxDB and Grafana) Stack January 24, 2026
  • Resetting password of another Linux by mounting disk December 15, 2025
  • “অমুক মাছ কেটে দিনে দশ হাজার কামাচ্ছে”- এসব গল্প এখন অনেকেই শোনায় November 22, 2025
  • Proxmox VM with NAT using Host Server November 21, 2025

Archives

Top Posts & Pages

  • Deploying Pulse Monitoring for Proxmox Cluster Ecosystem
©2026 Bots! | WordPress Theme by SuperbThemes