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| {{header|infra}} | | {{header|infra}} |
| {{shortcut|ISOP:DNS}}
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| We have two DNS server, the primary is at ns1.fedoraproject.org and is hosted at ServerBeach, from there it replicates to dns1.j2solutions.net.
| | {{admon/important|All SOPs have been moved to the Fedora Infrastructure [https://pagure.io/infra-docs/ SOP git repository]. Please consult the [https://fedora-infra-docs.readthedocs.io/en/latest/sysadmin-guide/sops/index.html online documentation] for the current version of this document.}} |
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| == Contact Information ==
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| Owner: Fedora Infrastructure Team
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| Contact: #fedora-admin, sysadmin-main
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| Location: ServerBeach and ibiblio
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| Servers: ns1.fedoraproject.org, ns2.fedorparoject.org
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| Purpose: Provides DNS to our users
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| == Troubleshooting, Resolution and Maintenance ==
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| === DNS update ===
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| DNS config files are puppet managed on puppet1. The update is standard to the puppet configs at http://fedoraproject.org/wiki/Infrastructure/Puppet/QuickStart
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| From puppet1:
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| <pre>
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| git clone /git/puppet
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| cd puppet/modules/bind/files/master
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| vi fedoraproject.org # Don't forget to increment the serial!
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| cd ../..
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| git commit -m "What you did"
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| git push | |
| </pre>
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| It should update within a half hour. You can test the new configs with dig:
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| <pre>
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| dig @ns1.fedoraproject.org fedoraproject.org
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| dig @ns2.fedorpaorject.org cvs.fedoraproject.org
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| </pre>
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| === Adding a new zone ===
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| First name the zone and generate new set of keys for it. Run this on ns1. Note it could take SEVERAL minutes to run:
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| <pre>
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| /usr/sbin/dnssec-keygen -a RSASHA1 -b 1024 -n ZONE c.fedoraproject.org ; /usr/sbin/dnssec-keygen -a RSASHA1 -b 2048 -n ZONE -f KSK c.fedoraproject.org | |
| </pre>
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| Then copy the created .key and .private files to the private git repo (You need to be sysadmin-main to do this). The directory is private/private/dnssec.
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| Once that is done you can add the new zone to the puppet/modules/bind/files/master/ directory. Then add the new zone to puppet/modules/bind/files/zones.conf. Note: If you're adding a new geodns zone, you need to do that directly in the named.conf file, not zones.conf.
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| The last thing you need to do is make sure to put the .key file contents at the bottom of your zone file. See other zone files for an example. The .key file you generated earlier.
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| If you add a new child zone, such as c.fedoraproject.org or vpn.fedoraproject.org you will also need to add the contents of dsset-childzone.fedoraproject.org (for example), to the main fedoraproject.org zonefile, so that DNSSEC has a valid trust path to that zone.
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| == resolv.conf ==
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| In order to make the network more transparent to the admins we do a lot of search based relative names. Below is a list of what a resolv.conf should look like.
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| {{Admon/important | Any machine that is not on our vpn or has not yet joined the vpn should _NOT_ have the vpn.fedoraproject.org search until after it has been added to the vpn (if it ever does)}}
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| === Phoenix ===
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| <pre>
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| search fedora.phx.redhat.com vpn.fedoraproject.org fedoraproject.org
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| </pre>
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| === Non-Phoenix ===
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| <pre>
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| search vpn.fedoraproject.org fedoraproject.org
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| </pre>
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| The idea here is that we can, when need be, setup local domains to contact instead of having to go over the VPN directly but still have sane configs. For example if we tell the proxy server to hit "app1" and that box is in PHX, it will go directly to app1, if its not, it will go over the vpn to app1.
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| [[Category:Infrastructure SOPs]] | | [[Category:Infrastructure SOPs]] |
