The problem is that I can't reproduce this issue myself. Also note that if you are using a proxy (see your /etc/yum.conf) it is possible that the HTTP 503 error comes from your proxy and not from the web server. If the issue persists, I would suggest talking to them directly to get this resolved. The contact details are on https://www.udomain.hk/?lang=en-US and you can refer to the ticket I opened with them, #781725. This command will output lots of debugging info on the screen, and some other info to yumdebug.log: URLGRABBER_DEBUG=1,yumdebug.log yum update Nethub Online - Ming kirjoitti 27.3.2019 klo 17.32: > Thanks Anssi, > > I just test again, but the problem persists, please check output below: > > > # yum -y update > ... > Total download size: 172 M > Downloading packages: > Delta RPMs disabled because /usr/bin/applydeltarpm not installed. > acl-2.2.51-14.el7.x86_64.rpm FAILED > http://repo.virtualhosting.hk/centos/7/os/x86_64/Packages/acl-2.2.51-14.el7.x86_64.rpm: > [Errno 14] HTTP Error 503 - Service Unavailable > Trying other mirror. > apr-1.4.8-3.el7_4.1.x86_64.rpm FAILED > http://repo.virtualhosting.hk/centos/7/os/x86_64/Packages/apr-1.4.8-3.el7_4.1.x86_64.rpm: > [Errno 14] HTTP Error 503 - Service Unavailable > Trying other mirror. > (1/269): GeoIP-1.5.0-13.el7.x86_64.rpm | 1.5 MB 00:00:00 > (2/269): apr-devel-1.4.8-3.el7_4.1.x86_64.rpm | 188 kB 00:00:00 > > Ming > > > > I received a notice from the mirror admin saying that they have fixed > > the problem, so I've now re-enabled the mirror. Hopefully it's OK now. > > > > Anssi Johansson kirjoitti 18.3.2019 klo 13.08: > >> I have now disabled the mirror and sent a notice to the mirror admins. > >> If they fix the problem I'll add them again. > >> > _______________________________________________ > CentOS-mirror mailing list > CentOS-mirror at centos.org > https://lists.centos.org/mailman/listinfo/centos-mirror