NEC Express Server Express5800 Series Installation Manual page 58

Chapter 1 Installing Operating System
8. Disabling the <Ctrl>+<Alt>+<Delete> keys
To prevent the wrong operation, disable the system restart by using the <Ctrl>+<Alt>+<Delete> keys.
Changing the setting
Execute the following command.
Enabling the <Ctrl>+<Alt>+<Delete> keys
# systemctl unmask ctrl-alt-del.target
Disabling the <Ctrl>+<Alt>+<Delete> keys
# systemctl mask ctrl-alt-del.target
9. Enabling the process accounting (psacct) service
Enable the psacct service for a server trouble to collect the log information of up to 10 generations.
▪ Enabling/disabling the psacct service
Execute the following command.
Disabling the psacct service
# systemctl disable psacct
Enabling the psacct service
# systemctl enable psacct
▪ Change the number of the generations for the log information
Change "10" in the following line in the "/etc/logrotate.d/psacct" file to the desired value.
Before change
# rotate 10
↓
After change (Changing to 31 generations)
# rotate 31
10. Perpetuation of the systemd-journald log
Create the "/var/log/journal" directory so that the journal log of systemd even when the system is
restarted.
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Express5800/R320e-E4, R320e-M4 Installation Guide (Linux)
4. Appendix