Ubuntu 16.04 change open file limits

ubn_16_04_open_file_limits.sh

# Ubuntu 16.04
# Show max. open files for system
cat /proc/sys/fs/file-max

nano /etc/sysctl.conf
# Add the following line:
fs.file-max = 200000

# Persist changes
sysctl -p


nano /etc/security/limits.conf
# Add the following lines:
*               soft    nofile  200000
*               hard    nofile  200000
*               soft    nproc   200000
*               hard    nproc   200000
root            hard    nofile  200000
root            soft    nofile  200000

nano /etc/pam.d/common-session
# Add the following line:
session required pam_limits.so

ulimit -n 200000