|
Tech Kaki Tips and Tricks for Mac OS X, Windows, Linux and office suite software.
|
 Subscribe RSS Feed
Comments Feed
|
I noticed that my Centos Server logs is not on the correct time. I tried to check the time from the command line and found that the timezone is pointing to the wrong timezone
root@thundercat ~]# date
Mon May 23 00:21:56 EDT 2011
How to change it? There are two ways to change the timezone on CentOS. (more…)
Below are the few steps :-
1) Open /etc/hosts.allow
Use the following command to open the hosts.allow file:
vi /etc/hosts.allow
Once this file is open, add the following line:
SSHD : ipaddress : ALLOW
2) Open /etc/hosts.deny
Use the following command to open the hosts.deny file:
vi /etc/hosts.deny
Once it opens, add the following line to the file:
SSHD : ALL : DENY
Save and exit, and you have successfully limited SSH access by IP address.
It is easy to update your SSH via yum. To do so, simply SSH into your linux server. Once logged in, type the the following;
#yum update openssh
This will update the openssh process, openssh-clients and openssh-server.
To verify what version of openssh you are running, you can type the following commend;
#ssh -V
Your server will then reply back with the version;
[root@XXXXXXX ~]# ssh -V
OpenSSH_4.3p2, OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008