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Services Running

Verify whether essential services are active and operating normally.

Input:

systemctl --type=service --state=running

Output:

sshd.service          loaded active running OpenBSD Secure Shell server
cron.service          loaded active running Regular background program processing daemon
systemd-logind.service loaded active running Login Service

Lists all running services under systemd.

References:

Input:

ss -tulpn

Output:

tcp LISTEN 0 128 0.0.0.0:22 0.0.0.0:* users:(("sshd",pid=811,fd=3))
udp LISTEN 0 128 0.0.0.0:123 0.0.0.0:* users:(("ntpd",pid=512,fd=4))

Shows active listening sockets and associated services.

References: