How do I see if my friends or coworkers are logged into the same Linux or BSD or UNIX (AIX, HP-UX, Apple OS X) server / workstation as I am from a command line?
How do I deny access to user account? Do I need to use /bin/false or /sbin/nologin to refuse a login?
How do I display user last login date and time under Linux operating systems?
Q. I’ve Debian Linux server and whenever someone trying to ssh into this box, they get an error as follows and server closes the connection:
System bootup in progress -please wait
How do I fix this problem and allow ssh login?
ow do I block access to root user over ssh session on my Linux server? How can I block root user log in over ssh based session for security reasons?