From becf81ab888aeb8fd682b572576f257ab9e9e96f Mon Sep 17 00:00:00 2001 From: David Gibson Date: Wed, 24 Jul 2024 17:51:12 +1000 Subject: fwd: Broaden what we consider for DNS specific forwarding rules passt/pasta has options to redirect DNS requests from the guest to a different server address on the host side. Currently, however, only UDP packets to port 53 are considered "DNS requests". This ignores DNS requests over TCP - less common, but certainly possible. It also ignores encrypted DNS requests on port 853. Extend the DNS forwarding logic to handle both of those cases. Link: https://github.com/containers/podman/issues/23239 Signed-off-by: David Gibson Tested-by: Paul Holzinger Signed-off-by: Stefano Brivio --- passt.1 | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'passt.1') diff --git a/passt.1 b/passt.1 index abc13d5..81789cc 100644 --- a/passt.1 +++ b/passt.1 @@ -244,11 +244,11 @@ usage of DNS addresses altogether. .TP .BR \-\-dns-forward " " \fIaddr -Map \fIaddr\fR (IPv4 or IPv6) as seen from guest or namespace to the first -configured DNS resolver (with corresponding IP version). Mapping is limited to -UDP traffic directed to port 53, and DNS answers are translated back with a -reverse mapping. -This option can be specified zero to two times (once for IPv4, once for IPv6). +Map \fIaddr\fR (IPv4 or IPv6) as seen from guest or namespace to the +first configured DNS resolver (with corresponding IP version). Maps +only UDP and TCP traffic to port 53 or port 853. Replies are +translated back with a reverse mapping. This option can be specified +zero to two times (once for IPv4, once for IPv6). .TP .BR \-S ", " \-\-search " " \fIlist -- cgit v1.2.3