Setting the time and date on the GUI is easy, but command line tools give you more power and flexibility. In this video, learn about timedatectl and how to configure remote time sync.
- [Instructor] Setting the date and time…from the GUI is fairly easy.…Go to Applications, System Tools, Settings,…and click on Date & Time.…This interface is pretty simple,…but it allows you to change the date, time, and time zone…as well as have them automatically updated.…You can also choose a 12 or 24 hour clock.…Our computers get their time information…from various sources.…Every computer has a realtime clock or RTC…that keeps time when the computer is off.…When the computer is turned on,…the OS reads the realtime clock,…and then keeps the time from that point on.…
If we setup network time protocol or NTP,…our computer will contact a time server somewhere…on the internet and adjust the time accordingly.…This method is the most accurate…but requires a network connection.…To change the date and time settings from the command line,…we'll want to open a terminal.…So close Date & Time, and then go to Applications,…Favorites, Terminal.…I'm going to make my terminal full screen…and bump my font size.…The command we use on CentOS 7 to manage our date and time…
- Network Time Services (NTP)
- How NTP works for authentication
- Configuring the chrony server and chrony client
- Setting up an LDAP server and LDAP client
- Creating a Kerberos database
- Configuring Kerberos client authentication
Skill Level Intermediate
Linux: Package Management for CentOSwith Grant McWilliams1h 56m Intermediate
Linux System Engineer: Networking and SSHwith Grant McWilliams1h 52m Intermediate
1. Network Time Services
2. Setting Up an LDAP Server
3. Setting Up an LDAP Client
4. Authentication Using Kerberos
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