The instsrv daemon must be disabled on AIX.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-215390 | SRG-OS-000095-GPOS-00049 | AIX7-00-003085 | SV-215390r958478_rule | 2026-02-06 | 3 |
Description
The instsrv service is part of the Network Installation Tools, used for servicing servers running AIX 3.2. This service should be disabled to prevent attacks.
ℹ️ Check
From the command prompt, execute the following command:
# grep "^instsrv[[:blank:]]" /etc/inetd.conf
If there is any output from the command, this is a finding.
✔️ Fix
In "/etc/inetd.conf", comment out the "instsrv" entry by running command:
# chsubserver -r inetd -C /etc/inetd.conf -d -v 'instsrv' -p 'tcp'
Restart inetd:
# refresh -s inetd