How To Block Website On Cisco Router 1800

Posted on 27/04/2014 Updated on 08/08/2015

How To Block Website On Cisco Router 1800

1. Create class-map

2. Create policy-map and then Apply class-map into policy-map

3. Apply policy-map into interface LAN

4. Test

Allow user Root Can login via telnet on CentOS 6.5

Posted on 01/04/2014 Updated on 01/04/2014

Allow user Root Can login via telnet on CentOS

After install service telnet, all user can login via telnet but only user /root cannot login via telnet. So, we should know that telnet is one service that insecure. So, if you want to allow user root can login via telnet, you should follow me step by step bellow.

I. after install service telnet you should go to part  /etc/pam.d/login and /etc/pam.d/remote

to disable some option as bellow.

– add comment (#) on auth pam_securetty.so

-Add comment (#) on auth required pam-securetty.so

II. Test 

Reference

http://www.cyberciti.biz/faq/how-do-i-telnet-as-the-root-user/

How to install telnet on CentOS 6.5

Posted on 01/04/2014 Updated on 01/04/2014

How to install telnet on CentOS

You may want to remote to your CentOS server by using telnet. Don’t worry! In this session you will be able to install and configure telnet on centos. So, please follow me step by step.

I. Install service telnet by

#yum install telnet telnet-server -y

II. go to vi /etc/xinetd.d/telnet   (Disable = no)

III. Start Service

IV. Create user and then test.

Test

Reference

http://www.unixmen.com/how-to-install-telnet-in-centos-rhel-scientific-linux-6-4/

How to enable automatically boot on switch

Posted on 29/03/2014

How to enable automatically boot on switch

Everyone really wonder why we need to enable automatically boot? We know that after we finish upload new IOS image on switch and then you type command Reload or restart your switch, the switch will not automatically boot. So, when this cause happen you may wast the time to connect to console port and enter boot command every time. Now, I can find solution. So, please join with me together.

I. Cause/Symptom

II. Solutions

If you are ROMMON (switch:) prompt. Means that you are now connect to switch by console and stand on SWITCH: part.

If you are Switch# prompt.

Refference

http://www.cisco.com/c/en/us/support/docs/switches/catalyst-2900-xl-series-switches/5106-36.html#switch_not_auto