What's up with Macports' DNS?

[Dave Allured - NOAA Affiliate]

In my case, selfupdate fails when I forget that I am inside my corporate
VPN.  Exiting VPN solves the problem immediately.  Otherwise, there was a
recent discussion about this on the macports developer mailing list.


On Mon, May 26, 2025 at 1:31 PM Dave Horsfall <dave at horsfall.org> wrote:

> Happened twice now (but works some time later):
>
>     mackie$ sudo port -v selfupdate
>     --->  Checking for newer releases of MacPorts
>       % Total    % Received % Xferd  Average Speed   Time    Time
>  Time  Current
>                                      Dload  Upload   Total   Spent
> Left  Speed
>     100    63  100    63    0     0    138      0 --:--:-- --:--:--
> --:--:--   137
>     MacPorts base version 2.10.7 installed,
>     MacPorts base version 2.10.7 available.
>     --->  MacPorts base is already the latest version
>     --->  Updating the ports tree
>     Synchronizing local ports tree from rsync://
> rsync.macports.org/macports/release/tarballs/ports.tar
>     rsync: getaddrinfo: rsync.macports.org 873: nodename nor servname
> provided, or not known
>     rsync error: error in socket IO (code 10) at
> /BuildRoot/Library/Caches/com.apple.xbs/Sources/rsync/rsync-52.0.1/rsync/clientserver.c(106)
> [receiver=2.6.9]
>     Command failed: /usr/bin/rsync -rtzvl --delete-after
> --include=/ports.tar.gz --include=/ports.tar.gz.rmd160 --exclude=* rsync://
> rsync.macports.org/macports/release/tarballs/
> /opt/local/var/macports/sources/
> rsync.macports.org/macports/release/tarballs/remote
>     Exit code: 10
>     Error: Synchronization of the local ports tree failed doing rsync
>     Error: Couldn't sync the ports tree: Synchronization of 1 source failed
>     Error: Follow https://guide.macports.org/#project.tickets if you
> believe there
>     is a bug.
>     Error: /opt/local/bin/port: port selfupdate failed: Couldn't sync the
> ports tree: Synchronization of 1 source failed
>     mackie$
>
> Why would the DNS be failing every week?
>
> -- Dave
>
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