YOU WANT TO KNOW THE WINDOWS SERIAL KEY - WHICH WAS USED TO ACTIVATE YOUR WINDOWS. Why? You may be planning to re-install the windows. You may have lost the key. You may be selling your computer and buying a new one - but want to retain your copy of windows. No Worries. You can…
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How to compress / zip a directory in Linux
To compress in tar.gz format: tar -cv /directory | gzip > archive.tar.gz To decompress the tar.gz file: tar -zxvf archive.tar.gz
Continue readingHow to change default SSH port 22 to something else
Internet connected Linux servers are always vulnerable to exploitation by the hackers/intruders. One of their common attack is through SSH. By default SSH servers are configured to listen to port 22 for SSH connection. Changing the port to something else will definitely add an additional measure in securing the server. How to Change Default SSH…
Continue readingPRISMA App for Android – Official download link in Google Play
People all around the globe are posting their photos with cool effects applied through a cool application named Prisma. The app was initially released for IOS - which means iPhone users were the ones to use it. Well - although late but Android users can use the app too. You may find it hard finding…
Continue readingHow to check numbers registered (Biometric) against your NID
If your curious mind wants to be sure no one else has used your NID to register their mobile number - you need to do the following: Robi Users: Dial *1600*3# Banglalink Users: Dial *1600*2# GrameenPhone, Airtel, Teletalk and Citycell has not yet announced this feature.
Continue readingRestrict Search Engines from finding your website
While everybody is busy getting their website more and more exposed to the search engines (SEO) - you might want to restrict search engines to crawl your website. You may have your own development website or may have your company's web based HR system - which you don't want to expose to the world. Search…
Continue readingHow to Clear bash / SSH / Terminal command history in Linux
You might need to wipe off the command history that you've executed in your linux system for various reason. Normally when logged into the bash / SSH terminal - if the Up Arrow key is pressed - previously executed commands are shown. To completely delete the history type the following command: # history -c #…
Continue readingHow to remove Malware from WordPress sites
Wordpress has made the web designers' lives easier. It has reduced the web development time & cost drastically. The CMS is so powerful that more and more people are converting/migrating their sites to Wordpress. With ease comes the danger of being compromised. If compromised - your site will not function properly. It may leak your…
Continue readingHow to find the IP addresses of a Linux system
The following command in a linux based system will show all the IPs assigned to that system: # ip addr show Or alternatively, if you'd like to know the IP address(es) of a certain port (for example eth0) type the following: # ip addr show eth0 Sample output: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state…
Continue readingCheck your Mobile Balance – GrameenPhone, BanglaLink, Robi, Airtel, Teletalk, Citycell
Grameenphone: *566# (Prepaid), 12115 (Postpaid) or sms: 2000 (Postpaid) Banglalink: *124# Airtel: *778# Robi: *222# or *222#1 or 222 Teletalk: *152# Citycell: *8111
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