Gkhan Tips

Centos 7 Setup command not found

yum install setuptool -y
yum install system-config-network* -y
yum install system-config-firewall* -y
yum install system-config-securitylevel-tui -y
yum install system-config-keyboard -y
yum install ntsysv -y

yum install NetworkManager-tui

nmtui

How to configure Reliance Jio SIP trunk on asterisk

Reliance Jio provide SIP E1 trunks with DIDs . For old PBX they give you SIP to E1 converter which give you RJ45 connector to connect your E1 port.

Jio put a fiber cable and terminate on ONT from there they provide a network CAT 6 cable to put in to your network switch or directly to your IP PBX network interface not E1 interface .

Reliance jio provide SIP E1 trunk on there own IP address which will be configured on your asterisk server or Grandstream UCM or any IP IPBX .

Continue reading How to configure Reliance Jio SIP trunk on asterisk

Windows server 2012 Hyper-v virtual machine getting shutdown after a while

Windows server 2012 Hyper-v virtual machine getting shutdown after a while.

this may be on of the reason code 0x80000000 if you check the event viewer with event id 1074 .

Description:
The process C:\Windows\system32\wlms\wlms.exe (<Computer Name>) has initiated the shutdown of computer <Computer Name> on behalf of user NT AUTHORITY\SYSTEM for the following reason: Other (Planned)
Reason Code: 0x80000000
Shutdown Type: shutdown
Comment: The license period for this installation of Windows has expired. The operating system is shutting down.

As the event states: The license period for this installation of Windows has expired.

To reset the evaluation period, Click Start, and then click Command Prompt > type slmgr. vbs –rearm, and then press ENTER.

Windows 2012 shutdown issue

Windows 2012 shutdown issue.

Event logs for shutdown or reboot of windows 2012 servers.

Event ID 41 The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
Event ID 1074 Logged when an app (ex: Windows Update) causes the system to restart, or when a user initiates a restart or shutdown.
Event ID 6006 Logged as a clean shutdown. It gives the message “The Event log service was stopped”.
Event ID 6008 Logged as a dirty shutdown. It gives the message “The previous system shutdown at time on date was unexpected”.

Continue reading Windows 2012 shutdown issue

How to get back your wireless password from windows 10

Open your Dos Prompt with administrator rights .

Type netsh wlan show profiles to show saved wireless profiles.

For Example

C:\Users\Dell>netsh wlan show profiles

Profiles on interface Wireless Network Connection 4:

Group policy profiles (read only)

Continue reading How to get back your wireless password from windows 10

How to search text in Ubuntu Linux

1- Install ack-grep by typing
#sudo apt-get install ack-grep

2- Change to the directory where you want to search
# ack-grep yourtext

it will show all files containing text yourtext

Cisco 7960 SIP Phone India Time Setting

Cisco 7960 SIP Phone Time India Time Setting

My Phone was showing One hour ahead in IST time . I configured below setting in SIPDefault.cnf.

It was showing one hour ahead due to dst_auto_adjust: was enabled. I just disabled its worked fine.

Continue reading Cisco 7960 SIP Phone India Time Setting

How to record linux ssh terminal output and replay it for all users

we can get it done using script command .you can save all the session from all users login in to your server and there activity. this will help you to troubleshoot the issues .

1- edit the profile file ( /etc/profile )and insert the below code.

……………………………………………………
if [ "x$SESSION_RECORD" = "x" ]
then
timestamp=$(date +%d-%m-%Y-%T)
session_log=/var/log/session/session.$USER.$$.$timestamp
SESSION_RECORD=started
export SESSION_RECORD
script -t -f -q 2>${session_log}.timing $session_log
exit
fi
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