1. Adjust the time amongst the server in your system
ntpdate time.apple.com
2. Check and monitor your disk space
- Your service may stop after one year from the beginning of your service release date because the log files occupies a server disk space.
- Use logrotate to truncate the log files (even if you are practicing that, the logs will overflow at the server).
- Monitor the remaining disk space by using df command.
df -h
3. Use the same version of your development and runtime systems environment in your team members.
- Use https://semver.org
- OS (Linux disribution and the version)
- Programming language version (Especially Python 2.7.x and 3.x)
- Framework version
- VM version (Java VM version, etc)
- Use Jenkins to test your systems and software in your team if possible, then release it.
4. Check the expiration of SSL certificate
- After one or three year later, the certificate needs to be updated however no one knows since that team member is leaving.