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!

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”)  

Continue Reading

How to Upgrade Node.js via NPM

Rumi, August 23, 2017

Steps to Upgrade Node.Js Use the following steps to install or upgrade node.js to latest available version. Current NodeJs Version – First check current nodejs version on your system using following command. In my case it is v0.10.37.rahul@tecadmin:~$ node -v v0.10.37 Clean Cache Forcefully – Now clean all npm cache from your…

Continue Reading

Installing Certbot on Debian 8

Rumi, August 23, 2017

root@server:~# cat /etc/apt/sources.list deb http://ftp.de.debian.org/debian/ jessie main deb-src http://ftp.de.debian.org/debian/ jessie main deb http://security.debian.org/ jessie/updates main deb-src http://security.debian.org/ jessie/updates main deb http://ftp.de.debian.org/debian/ jessie-updates main deb-src http://ftp.de.debian.org/debian/ jessie-updates main deb http://ftp.debian.org/debian jessie-backports main

Continue Reading

Failed to open /var/mail/root : No such file or directory

Rumi, August 21, 2017

If you’re receiving the following message on webmin- “Failed to open /var/mail/root : No such file or directory”. Possible resolution is- rumi@mordor:~$ rumi@mordor:~$ sudo touch /var/mail/rumi rumi@mordor:~$ sudo chown thufir:mail /var/mail/rumi rumi@mordor:~$ sudo chmod o-r /var/mail/rumi rumi@mordor:~$ sudo chmod g+rw /var/mail/rumi rumi@mordor:~$ rumi@mordor:~$ mail No mail for thufir thufir@mordor:~$

Continue Reading

Best Practices on Email Protection: SPF, DKIM and DMARC

Rumi, August 20, 2017

Once we installed Zimbra Collaboration, we need to be aware of some additional configurations that will allow us to send emails to other Email systems with an improve Security, such Gmail, Hotmail, Yahoo!, etc. This Wiki article will show the different Email Protection resources that exists, depends of the volume…

Continue Reading

How to start Google Chrome in Incognito Mode default

Rumi, August 15, 2017

Place a Google Chrome shortcut on the desktop (or any other desired location). Rename the shortcut to any convenient name like – Private Chrome. Right click on the shortcut and select “˜Properties’. On the “˜Target’ field add an –incognito to the end of program path. (Note: Make sure there is…

Continue Reading

Proxmox VM is locked (backup)

Rumi, August 7, 2017

Problem found- Error show: Code: INFO: setting parameters failed – VM is locked (backup) ERROR: Backup of VM 516 failed – command ‘qm set 516 –lock backup’ failed with exit code 255 Resolution:  qm unlock <vmid>

Continue Reading

Moving MySQL/Windows to same version of MySQL/Linux

Rumi, August 5, 2017

Moving MySQL/Windows to same version of MySQL/Linux. You can mysqldump all the databases as follows: C:\> mysqldump -uroot -p –routines –triggers –flush-privileges –all-databases > MySQLData.sql Move MySQLData.sql to Linux box and run the reload mysql -uroot -p < MySQLData.sql

Continue Reading

Apache Virtual Hosts on Debian 7

Rumi, August 2, 2017

Virtual Hosts are used to run more than one domain off of a single IP address. This is especially useful to people who need to run several sites off of one virtual private server– each will display different information to the visitors, depending on which website the user is accessing.There…

Continue Reading

Convert squid timestamps

Rumi, July 27, 2017

When you work with a squid access log file you sometimes want to know when a site or resource was accessed. Squid does not store the date and time information for that in a human readable format. It is stored as <unix timestamp>.<centisecond> so you can use a command like…

Continue Reading
  • Previous
  • 1
  • …
  • 58
  • 59
  • 60
  • …
  • 127
  • 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 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

Topics

Recent Posts

  • Install Jitsi on Ubuntu 22.04 / 22.10 April 30, 2025
  • Key Lessons in life April 26, 2025
  • Create Proxmox Backup Server (PBS) on Debian 12 April 19, 2025
  • Add Physical Drive in Proxmox VM Guest April 19, 2025
  • Mount a drive permanently with fstab in Linux April 16, 2025
  • Proxmox 1:1 NAT routing March 30, 2025
  • Installation steps of WSL – Windows Subsystem for Linux March 8, 2025
  • Enabling Nested Virtualization In Proxmox March 8, 2025
  • How to Modify/Change console/SSH login banner for Proxmox Virtual Environment (Proxmox VE / PVE) March 3, 2025
  • Install Proxmox Backup Server on Debian 12 February 12, 2025

Archives

Top Posts & Pages

  • Install Jitsi on Ubuntu 22.04 / 22.10
©2025 Bots! | WordPress Theme by SuperbThemes