Hot answers tagged limit
9
When logging in using SSH, you use a pseudo-terminal (a pty) allocated to the SSH daemon, not a real one (a tty). Pseudo-terminals are created and destroyed as needed. You can find the number of ptys allowed to be allocated at one time at /proc/sys/kernel/pty/max, and this value can be modified using the kernel.pty.max sysctl variable. Assuming that no other ...
5
A process can change its limits via the setrlimit(2) system call. When you run ulimit -n you should see a number. That's the current limit on number of open file descriptors (which includes files, sockets, pipes, etc) for the process. The ulimit command executed the getrlimit(2) system call to find out what the current value is.
Here's the key point: a ...
1
You can also use the timeout command to block a process from running for longer than a specified amount of time.
example
$ date
Mon May 6 07:35:07 EDT 2013
$ timeout 5 sleep 100
$ date
Mon May 6 07:35:14 EDT 2013
See the timeout man page for further details.
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