Lennart Poettering
a8d0906344
This beefs up the DNS stub logic to listen on two IP addresses: 127.0.0.53 (as before) + 127.0.0.54 (new). When the latter is contact our stub will operate in "bypass" mode only, i.e we'll try to pass DNS requests as unmodified upstream as we can (and not do mDNS/LLMNR and such, also no DNSSEC validation – but we'll still do DNS-over-TLS wrapping). This is supposed to be useful for container environments or tethering: this stub could be exposed (via NAT redirect) to clients of this system and we'll try to stay out of the way with doing too much DNS magic ourselves, but still expose whatever the current DNS server is from upstream under a stable address/port. How to use this: # iptables -t nat -I PREROUTING -p udp -i <interface> --dport 53 -j DNAT --to 127.0.0.54:53 # echo 1 > /proc/sys/net/ipv4/conf/<interface>/route_localnet
System and Service Manager
Details
Most documentation is available on systemd's web site.
Assorted, older, general information about systemd can be found in the systemd Wiki.
Information about build requirements is provided in the README file.
Consult our NEWS file for information about what's new in the most recent systemd versions.
Please see the Code Map for information about this repository's layout and content.
Please see the Hacking guide for information on how to hack on systemd and test your modifications.
Please see our Contribution Guidelines for more information about filing GitHub Issues and posting GitHub Pull Requests.
When preparing patches for systemd, please follow our Coding Style Guidelines.
If you are looking for support, please contact our mailing list or join our IRC channel.
Stable branches with backported patches are available in the stable repo.