Minimal configuration to trigger this issue:
set system login tacacs server 192.168.1.50 key 'test123' set system login tacacs timeout '1' set system login user vyos authentication plaintext-password 'vyos' set system login user vyos2 authentication plaintext-password 'vyos2'
After commit when monitoring the log via: monitor log one will see:
Dec 09 17:45:17 usermod[212049]: nss_tacplus: group frrvty members truncated due to short buffer 215 characters Dec 09 17:45:17 usermod[212049]: nss_tacplus: group adm members truncated due to short buffer 218 characters Dec 09 17:45:17 usermod[212049]: nss_tacplus: group dip members truncated due to short buffer 218 characters