Where you can find user limits in AIX?

The /etc/security/limits file defines process resource limits for users. This file is an ASCII file that contains stanzas that specify the process resource limits for each user. These limits are set by individual attributes within a stanza.

How many groups a user can be in Linux?

The maximum number of groups a user can belong to on UNIX or Linux is 16.

How do I add a user to a group in AIX?

  1. -G vsftp : Add vivek to secondary group called vsftp. This group must exists on the system.
  2. -d /data/home/v/vivek : Path to the vivek’s home directory.
  3. -m : Create the new user’s home directory if it does not already exist.
  4. vivek : Username / login nane.

What is Max user processes?

The maximum user processes (nproc) limit on Linux counts the number of threads within all processes that can exist for a given user. The default value of nproc is 1024 on some versions of Linux, which is generally an insufficient number of threads for all processes.

What is Max locked memory?

max locked memory (kbytes, -l) The maximum size that may be locked into memory. Memory locking ensures the memory is always in RAM and never moved to the swap disk. https://stackoverflow.com/questions/9818755/why-would-we-need-to-lock-a-processs-address-space-in-ram. max memory size (kbytes, -m)

How many groups can a single user be a member of?


Type Description Limit
External member* invitations per day, per user Maximum number of external members that a single user can invite to any groups in a day 500 per day, per user

What’s the maximum number of Linux groups a user can be a member of without experiencing system issues?

up to 32 on a modern linux.

What is the limit on maximum number of processes set in program?

conf. 4194303 is the maximum limit for x86_64 and 32767 for x86.

How do I increase max user processes?

A non user can set a limit between (0 and hard limit) for its processes.

  1. Check all current limits. You can check all the limits for the currently logined user.
  2. Set ulimit for user. You can use ulimit -u to find max user processes or nproc limit.
  3. Set Ulimit for open file.
  4. Set user limit via systemd.
  5. Conclusion.