Let us take a sample example to print out “Hello World”. We added an optional HTML comment that surrounds our JavaScript code. This is to save our code from a browser that does not support JavaScript. The comment ends with a “//–>”. Here “//” signifies a comment in JavaScript, so we add that to prevent … Read more
> check the current hostname login on server as root user run the command: hostname > change the hostname: hostname newname
> login on server through putty with current username & password > type: passwd root it will ask to put the new password…thats it
Change your system host-name mail.linuxsolutions.org.in vi /etc/hosts 192.168.1.14 mail.linuxsolutions.org.in save&exit vi /etc/sysconfig/network mail.linuxsolutions.org.in save&exit ======================================================================================================= yum install bind bind-chroot caching-nameserver bind-utils ======================================================================================================= ======================CONFIGURE DNS=============================== cp /etc/named.rfc1912.zones /etc/named.conf vim /etc/named.conf // named.rfc1914.zones: // // Provided by Red Hat caching-nameserver package // // ISC BIND named zone configuration for zones recommended by // RFC 1912 section 4.1 … Read more
Summary: in this tutorial, you will learn how to create views in MySQL by using the CREATE VIEW statement. Introduction to CREATE VIEW statement The syntax of creating a view in MySQL is as follows: 1234 5 CREATE[ALGORITHM = {MERGE | TEMPTABLE | UNDEFINED}]VIEW [database_name].[view_name]AS [SELECT statement] Algorithms The algorithm attribute allows you to control which mechanism is used when … Read more
Being a network administrator requires a deep knowledge about remote login protocols such as rlogin, telnet and ssh. The one I will discuss in this article is ssh, a secure remote protocol which is used to work remotely on other machines or transfer data between computers using SCP (Secure Copy) command. But, what is OpenSSH and how to install it in your Linux distribution? … Read more
Hashes are one of the data structures available in Perl.A hash is an un-ordered group of key-value pairs. The keys are unique strings. The values are scalar values. Each value can be either a number, a string, or a reference. We’ll learn about references later. Hashes, like other Perl variables, are declared using the my keyword. The … Read more
; ; Asterisk Call Detail Record engine configuration ; ; CDR is Call Detail Record, which provides logging services via a variety of ; pluggable backend modules. Detailed call information can be recorded to ; databases, files, etc. Useful for billing, fraud prevention, compliance with ; Sarbanes-Oxley aka The Enron Act, QOS evaluations, and more. … Read more
WARNING[1812] chan_sip.c: Autodestruct on dialog ‘38617eb73184c21225d3133b398b0dc6@10.0.8.18:5060’ with owner SIP/1000-00000533 in place (Method: BYE). Rescheduling destruction for 10000 ms Solution: We resolved this by looking into the dialplan. It seems that we had a channel held open that Asterisk couldn’t destroy. These built up and Asterisk was unable to successfully make calls. A key thing I … Read more