Infrastructure » sepia

I was able to connect to the VPN (no errors in logs, "Initialization Sequence Completed"), but I'm having some trouble, possibly just with DNS.

ssh and any other program says "Could not resolve hostname teuthology.front.sepia.ceph.com: Name or service not known". Am I missing some step? Do I need to manually add a DNS server?

Thanks.

Our DNS setup is a little wonky. We've been providing private IPs via a public DNS server that has the *.sepia.ceph.com domain delegated to it.

Try adding 172.21.0.10 to your resolv.conf for now. We'll be switching to a different setup where the openvpn server will push a DNS server eventually.

Public DNS servers should be able to resolve that address:

$ host teuthology.front.sepia.ceph.com 8.8.8.8
Using domain server:
Name: 8.8.8.8
Address: 8.8.8.8#53
Aliases: 

teuthology.front.sepia.ceph.com has address 172.21.9.23
teuthology.front.sepia.ceph.com mail is handled by 0 mx1.sub4.homie.mail.dreamhost.com.
teuthology.front.sepia.ceph.com mail is handled by 0 mx2.sub4.homie.mail.dreamhost.com.

David, I've tried with that name server but it didn't help.

Thank you, Nathan, adding 8.8.8.8 immediately solves this, and I was able to log in: oprypin@teuthology:~$

For some reason, my normal nameserver gives this response:

host teuthology.front.sepia.ceph.com 192.168.1.1
Using domain server:
Name: 192.168.1.1
Address: 192.168.1.1#53
Aliases: 

teuthology.front.sepia.ceph.com mail is handled by 0 mx2.sub4.homie.mail.dreamhost.com.
teuthology.front.sepia.ceph.com mail is handled by 0 mx1.sub4.homie.mail.dreamhost.com.

192.168.1.1 is the address of my router which probably just uses whatever the ISP says. Never had problems like this before.

That's interesting. Just out of curiosity, can you log into your router and tell me what DNS servers it's using?

Hey David,
I am having the same issue, I can authenticate and log can track Initialization Sequence Completed, yet I can't ssh to remote system. I am using this command

`ssh -vv -i /home/d/.ssh/id_rsa deepika@senta04.front.sepia.ceph.com
`
which outputs:

`
OpenSSH_7.8p1, OpenSSL 1.1.0i-fips 14 Aug 2018
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Reading configuration data /etc/ssh/ssh_config.d/05-redhat.conf
debug1: Reading configuration data /etc/crypto-policies/back-ends/openssh.config
debug1: /etc/ssh/ssh_config.d/05-redhat.conf line 8: Applying options for *
debug2: resolving "senta04.front.sepia.ceph.com" port 22
debug2: ssh_connect_direct
debug1: Connecting to senta04.front.sepia.ceph.com [172.21.9.34] port 22.
debug1: connect to address 172.21.9.34 port 22: Connection timed out
ssh: connect to host senta04.front.sepia.ceph.com port 22: Connection timed out
`

Also added the `172.21.0.51` to resolv.conf file. Nothing helped.