Some times getting 500 Internal error or show network error on firebug in Web browser.

On Unix or Linux use shell scripting If you could not calculate string, we can convert string to integer type,

After configured your domain and restart your NGINX, its does not start and shows error like pcre compile failed nothing to repeat on,

When you are installing or compiling packages in server shows error like, error while loading shared libraries: libssl.so.6 cannot open shared object file No such file or When you are installing or compiling packages in server shows error like,directory,

You may get an error C compiler cc is not found while installting or compiling softwares in your linux system, need to install supporting library packages.

SCP command help us copies files, directories between hosts on network. If you could not found command we need to install openssl client package.

Yes, GlassFish 4 is running by default at port number 8080 as you want to run at port 80 we can change it.