All Linux users have a user ID and a group ID and a unique numerical identification number called a userid (UID) and a groupid (GID) respectively. Groups can be assigned for a single user or a group or users together for a common security, privilege and access purpose.
/etc/group is an ASCII file which defines the [...]
How to check number of Telnet/SSH session:
Telnet
netstat | grep telnet -c
netstat -n | grep :23 -c
SSH
netstat |grep ssh -c
netstat -n | grep :22 -c
Possibly Related Posts:
SSH Remote Access Authentication Tips
Your Password is Disclose
Ask Google Engineer a Questions
Fedora 10 Artwork
Set a Good Password Policy On SuSE Linux
The previous post about “Why Telnet Not Working From Different Network” solved my stupid mistake and I have discover another interesting regarding telnet.
Normally if anyone ‘telnet’ to server box and inactive(mean without login) for 60 seconds, the system will keep disconnect automatically. Due to certain reasons, I have to extend the inactive telnet session [...]
Previously I wrote about How To Install/Uninstall Dell Open Manage Server Administrator(OMSA) On SLES9 or SLES10 and I found another error which is TTY log that keep increasing without automated housekeeping.
As I understand from Dell malling list, there is no way to turn it off. Too bad, I have a TTY log file that [...]
Secure Shell or SSH is a network protocol that allows data to be exchanged using a secure channel between two computers. SSH uses public-key cryptography to authenticate the remote computer and allow the remote computer to authenticate the user.
In order to use public-key secure connection with other Linux hosts (ssh, scp, sftp) there is a [...]
