Do you find it difficult to connect to your google cloud VM via SSH using ssh keys and you have to login to google cloud console frequently to start and stop your VM instances ?. Google Cloud SDK productive tools come in handy not only to manage APIs and Read more…
In any programming language a same goal can be achieved through many ways . I am going to discuss how to replace a countdown timer with handler for changing images dynamically on android . What I needed was the following : I have android assets folder with several images Read more…
These days websites become an indispensable part of marketing strategies for a business despite of its size. Just having a website for your business with a contact form may not be abundant to gain leads and expect all of your potential customers to fill it. One of several ways to Read more…
TIP OF THE DAY: SIP useragent /Registrar uses digest authentication for SIP authentication. To prevent replay attacks SIP registrar generates an arbitrary number NONCE ( number once) and send to sip client. SIP client uses that NONCE to hash the sip credentials and send to registrar. If you have packet Read more…
Sometimes we may want to investigate why a linux system was shutdown unexpectedly . As you know already , the only place we get this information from is /var/log directory . last -x command will display some information about shutdown/reboot like below . runlevel (to lvl 3) 2.6.32-754.17.1. Sat Read more…