NEC Express Server Express5800 Series - Page 59

4. Appendix
Express5800/R320e-E4, R320e-M4 Installation Guide (Linux)
59
Chapter 1 Installing Operating System
11. Monitoring the signal
To monitor the process signal transmission, set the following contents in the
"/etc/audit/rules.d/audit.rules" file.
-a always,exit -F arch=b64 -S kill,rt_sigqueueinfo,tkill -F a1=0x1 -k signal_send
-a always,exit -F arch=b32 -S kill,rt_sigqueueinfo,tkill -F a1=0x1 -k signal_send
-a always,exit -F arch=b64 -S tgkill,rt_tgsigqueueinfo -F a2=0x1 -k signal_send
-a always,exit -F arch=b32 -S tgkill,rt_tgsigqueueinfo -F a2=0x1 -k signal_send
-a always,exit -F arch=b64 -S kill,rt_sigqueueinfo,tkill -F a1=0x2 -k signal_send
-a always,exit -F arch=b32 -S kill,rt_sigqueueinfo,tkill -F a1=0x2 -k signal_send
-a always,exit -F arch=b64 -S tgkill,rt_tgsigqueueinfo -F a2=0x2 -k signal_send
-a always,exit -F arch=b32 -S tgkill,rt_tgsigqueueinfo -F a2=0x2 -k signal_send
-a always,exit -F arch=b64 -S kill,rt_sigqueueinfo,tkill -F a1=0x6 -k signal_send
-a always,exit -F arch=b32 -S kill,rt_sigqueueinfo,tkill -F a1=0x6 -k signal_send
-a always,exit -F arch=b64 -S tgkill,rt_tgsigqueueinfo -F a2=0x6 -k signal_send
-a always,exit -F arch=b32 -S tgkill,rt_tgsigqueueinfo -F a2=0x6 -k signal_send
-a always,exit -F arch=b64 -S kill,rt_sigqueueinfo,tkill -F a1=0x9 -k signal_send
-a always,exit -F arch=b32 -S kill,rt_sigqueueinfo,tkill -F a1=0x9 -k signal_send
-a always,exit -F arch=b64 -S tgkill,rt_tgsigqueueinfo -F a2=0x9 -k signal_send
-a always,exit -F arch=b32 -S tgkill,rt_tgsigqueueinfo -F a2=0x9 -k signal_send
-a always,exit -F arch=b64 -S kill,rt_sigqueueinfo,tkill -F a1=0xa -k signal_send
-a always,exit -F arch=b32 -S kill,rt_sigqueueinfo,tkill -F a1=0xa -k signal_send
-a always,exit -F arch=b64 -S tgkill,rt_tgsigqueueinfo -F a2=0xa -k signal_send
-a always,exit -F arch=b32 -S tgkill,rt_tgsigqueueinfo -F a2=0xa -k signal_send
-a always,exit -F arch=b64 -S kill,rt_sigqueueinfo,tkill -F a1=0xc -k signal_send
-a always,exit -F arch=b32 -S kill,rt_sigqueueinfo,tkill -F a1=0xc -k signal_send
-a always,exit -F arch=b64 -S tgkill,rt_tgsigqueueinfo -F a2=0xc -k signal_send
-a always,exit -F arch=b32 -S tgkill,rt_tgsigqueueinfo -F a2=0xc -k signal_send
-a always,exit -F arch=b64 -S kill,rt_sigqueueinfo,tkill -F a1=0xd -k signal_send
-a always,exit -F arch=b32 -S kill,rt_sigqueueinfo,tkill -F a1=0xd -k signal_send
-a always,exit -F arch=b64 -S tgkill,rt_tgsigqueueinfo -F a2=0xd -k signal_send
-a always,exit -F arch=b32 -S tgkill,rt_tgsigqueueinfo -F a2=0xd -k signal_send
-a always,exit -F arch=b64 -S kill,rt_sigqueueinfo,tkill -F a1=0xf -k signal_send
-a always,exit -F arch=b32 -S kill,rt_sigqueueinfo,tkill -F a1=0xf -k signal_send
-a always,exit -F arch=b64 -S tgkill,rt_tgsigqueueinfo -F a2=0xf -k signal_send
-a always,exit -F arch=b32 -S tgkill,rt_tgsigqueueinfo -F a2=0xf -k signal_send
12. Prevention of the OS existence check in all disks
This prevents all disks from performing unnecessary I/O when executing the grub2-mkconfig command.
Checking the OS existence check in all disks
Delete the following line in the "/etc/default/grub" file.
GRUB_DISABLE_OS_PROBER="true"
13. Saving the root user command history
Add the following setting to the "/root/.bashrc" file to correctly understand the operation status when a
system problem occurs.
unset HISTCONTROL # Saving the duplicated command history
HISTSIZE=20000 # Setting the maximum history count to 20000
HISTTIMEFORMAT=" %F %T " # Displaying the date and time when displaying the history
14. Add the "acpi_pad" module to the blacklist.
Add the following setting to the "/etc/modprobe.d/nec.conf" file to add "acpi_pad" module to the
blacklist and disable it.
blacklist acpi_pad