Difference between revisions of "DNS"

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(List of SRV records)
 
 
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There is currently no way to create or modify SRV records in [http://maintain.uwaterloo.ca maintain]. Hence we need to email hostmaster@ist.uwaterloo.ca to get SRV records in UW's DNS servers. The following are a list of SRV records that the CSC plans to create or has created:
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== IST DNS ==
  
'''Kerberos'''
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The University of Waterloo's DNS is managed through [https://nsbuild.uwaterloo.ca Infoblox].
* _kerberos._udp.csclub.uwaterloo.ca
 
** 0 0 88 caffeine.csclub.uwaterloo.ca
 
** 0 0 88 perpugilliam.csclub.uwaterloo.ca
 
* _kerberos-master._udp
 
** 0 0 88 caffeine.csclub.uwaterloo.ca
 
* _kerberos-adm._tcp
 
** 0 0 749 caffeine.csclub.uwaterloo.ca
 
* _kpasswd._udp
 
** 0 0 464 caffeine.csclub.uwaterloo.ca
 
  
'''LDAP'''
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People who have access to Infoblox:
* _ldap._tcp.csclub.uwaterloo.ca
 
** 0 0 389 caffeine.csclub.uwaterloo.ca
 
** 0 0 389 perpugilliam.csclub.uwaterloo.ca
 
* _ldaps._tcp.cslcub.uwaterloo.ca
 
** 0 0 636 caffeine.csclub.uwaterloo.ca
 
** 0 0 636 perpugilliam.csclub.uwaterloo.ca
 
* _ldaps._tcp.cslcub.uwaterloo.ca
 
  
'''Jabber''' (already present, but should get updated as they point to peri; verify ports)
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* ztseguin
* _xmpp-server._tcp.csclub.uwaterloo.ca
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* jxpryde
** 0 0 5269 caffeine.csclub.uwaterloo.ca
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* mtrberzi
* _xmpp-client._tcp.csclub.uwaterloo.ca
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* API account located in the standard syscom place
** 0 0 5222 caffeine.csclub.uwaterloo.ca
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* _jabber._tcp.csclub.uwaterloo.ca
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== CSC DNS ==
** 0 0 5269 caffeine.csclub.uwaterloo.ca
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CSC hosts some authoritative dns services on ext-dns1.csclub.uwaterloo.ca (129.97.134.4/2620:101:f000:4901:c5c::4) and ext-dns2.csclub.uwaterloo.ca (129.97.18.20/2620:101:f000:7300:c5c::20).
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Current authoritative domains:
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* csclub.cloud
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* uwaterloo.club
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* csclub.uwaterloo.ca: A script (/opt/bindify/update-dns on dns1) runs every 10 minutes to populate this zone from the Infoblox records.
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* Any zone added to Designate DNS service on CSC Cloud
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Those DNS servers are also recursive for machines located on the University network.
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=== Infoblox ===
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The main DNS zone for the club (csclub.uwaterloo.ca) is managed using the University's Infoblox system.
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To add a new record:
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# Visit [https://nsbuild.uwaterloo.ca Infoblox]
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# Locate the desired network
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# Find a free IP address (ping and reverse DNS it to make sure it's unused)
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# Click add host (+)
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# Set the zone to csclub.uwaterloo.ca
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# Set the name
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# Add the IPv4 address, if it is not set
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# Add the IPv6 address, typically in the format of (2620:101:f000:$SUBNET:c5c::$LAST_OCTET_OF_V4_ADDRESS)
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# Click "Next"
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# Set Pol8 Classification to "Public"
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# Set Primary OU to "CS"
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# Set Technical Contact to "syscom@csclub.uwaterloo.ca"
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# Click "Save & Close"
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The CSC DNS servers will update within 10 minutes with the new information.
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=== Updating records ===
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If you manually update a record in the dns1 container (somewhere in /etc/bind), make sure you also update the serial number for the SOA record for the corresponding zone. Then, run <code>rndc reload</code>.
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== Miscellaneous ==
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=== LOC Records ===
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If we really cared, we might add a [http://en.wikipedia.org/wiki/LOC_record LOC record] for csclub.uwaterloo.ca.
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=== SSHFP ===
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We could look into [http://tools.ietf.org/html/rfc4255 SSHFP] records. Apparently OpenSSH supports these. (Discussion moved to [[Talk:DNS]].)
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[[Category:Systems]]

Latest revision as of 15:01, 14 May 2021

IST DNS

The University of Waterloo's DNS is managed through Infoblox.

People who have access to Infoblox:

  • ztseguin
  • jxpryde
  • mtrberzi
  • API account located in the standard syscom place

CSC DNS

CSC hosts some authoritative dns services on ext-dns1.csclub.uwaterloo.ca (129.97.134.4/2620:101:f000:4901:c5c::4) and ext-dns2.csclub.uwaterloo.ca (129.97.18.20/2620:101:f000:7300:c5c::20).

Current authoritative domains:

  • csclub.cloud
  • uwaterloo.club
  • csclub.uwaterloo.ca: A script (/opt/bindify/update-dns on dns1) runs every 10 minutes to populate this zone from the Infoblox records.
  • Any zone added to Designate DNS service on CSC Cloud


Those DNS servers are also recursive for machines located on the University network.

Infoblox

The main DNS zone for the club (csclub.uwaterloo.ca) is managed using the University's Infoblox system.

To add a new record:

  1. Visit Infoblox
  2. Locate the desired network
  3. Find a free IP address (ping and reverse DNS it to make sure it's unused)
  4. Click add host (+)
  5. Set the zone to csclub.uwaterloo.ca
  6. Set the name
  7. Add the IPv4 address, if it is not set
  8. Add the IPv6 address, typically in the format of (2620:101:f000:$SUBNET:c5c::$LAST_OCTET_OF_V4_ADDRESS)
  9. Click "Next"
  10. Set Pol8 Classification to "Public"
  11. Set Primary OU to "CS"
  12. Set Technical Contact to "syscom@csclub.uwaterloo.ca"
  13. Click "Save & Close"

The CSC DNS servers will update within 10 minutes with the new information.

Updating records

If you manually update a record in the dns1 container (somewhere in /etc/bind), make sure you also update the serial number for the SOA record for the corresponding zone. Then, run rndc reload.

Miscellaneous

LOC Records

If we really cared, we might add a LOC record for csclub.uwaterloo.ca.

SSHFP

We could look into SSHFP records. Apparently OpenSSH supports these. (Discussion moved to Talk:DNS.)