Last change: 2025-03-12
Dig is one of the primary tools when it comes to DNS. Resolve names, perform queries, troubleshooting any issues related to DNS. It's always DNS!
Dns articles
Last change: 2025-03-12
Looking for all DNS requests made on a Linux system? Tools like dnstop, firejail, and tcpdump can help to find what is being queried.
Last change: 2025-11-14
The command systemd-analyze helps analyzing systemd components to optimize the system including performance and security.
Last change: 2025-03-12
Show IP address information on Linux with the help of the ip command. Learn which subcommands to use to query the relevant details.
Commands:
Last change: 2025-03-12
Show the IP address of your internet connection using the dig or the curl command. Learn which options can be used to find out this information.
Last change: 2025-03-12
Find the active DNS server being used by reviewing the network configuration, including common commands to query this information.
Commands:
Last change: 2025-03-12
Linux with systemd might doing DNS resolving using its resolver daemon. Learn how to inspect and clear the DNS cache when using the systemd resolver daemon.
Commands:
Last change: 2025-03-12
The command resolvectl provides details about systemd-resolved. Discover the available options for the name resolution daemon on Linux systems.
Last change: 2025-03-12
Learn how to query the Time To Live (TTL) for a DNS record by using the dig tool on a Linux systems, including any relevant options.
Commands:
Last change: 2025-03-12
Small things have a big impact. Resolving issues with localhost or system hostname. Here is how to check your /etc/hosts file.
Commands:
- cat
- getent
- hostname
- strace
Last change: 2025-03-12
Linux DNS configuration is usually done during the installation of the system. With proper configuration and tuning, you gain performance and stability.