SSHD Status

SSHD is the Secure Shell daemon used for remote access to Linux servers and other network devices. Checking the status of SSHD is important for ensuring that secure remote access is available when needed.

Checking SSHD Status

To check the SSHD status on a Linux server using systemd, run the following command in the terminal:

systemctl status sshd

This will return the current status of SSHD, including any error messages or warnings that may indicate issues with the service. The output will be in the following markdown format:

● sshd.service - OpenSSH Daemon
   Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset: enabled)
   Active: active (running) since Sun 2021-08-29 12:43:28 UTC; 1 weeks 5 days ago
 Main PID: 1340 (sshd)
    Tasks: 1 (limit: 15819)
   Memory: 2.3M
   CGroup: /system.slice/sshd.service
           └─1340 /usr/sbin/sshd -D

The first line provides a brief description of the service. The second line shows the location of the SSHD service file and its current status, which should be "active (running)" if everything is working properly. The remaining lines provide additional information about the process, including the main PID, the number of tasks, memory usage, and the process group.

Troubleshooting SSHD Issues

If SSHD is not running or there are issues with the service, there are several things that can be done to troubleshoot the problem. Some common solutions may include:

• Restarting the SSHD service using the command systemctl restart sshd
• Checking the SSHD configuration file at /etc/ssh/sshd_config
• Reviewing system logs for any errors related to SSHD
• Checking network settings and firewalls to ensure that port 22 (the default port for SSH) is open and accessible from the outside.

By checking the SSHD status and troubleshooting any issues that arise, programmers can ensure that remote access to their servers is secure and reliable.