| onefang | I wonder if this Debian Janitor would be of any use to us, or do we already do something like that? https://www.jelmer.uk/kali-janitor.html | 01:33 |
|---|---|---|
| rwp | Is email.devuan.org suffering? I am seeing popcon email queued failing to transfer due to timeouts for the last 12 hours. | 20:22 |
| bb|hcb | rwp: There is a new IP, maybe flishing DNS cache would help? | 21:30 |
| bb|hcb | *flushing | 21:33 |
| rwp | bb|hcb, The TTL on the devuan.org addressees is 86400 seconds, a full day! WOW! That does seem quite long. | 22:29 |
| rwp | I would recommend something more like 14400, 4 hours, which has always been a good reasonable recommended TTL. | 22:29 |
| rwp | I see that I am still getting the old IP address at a TTL countdown of 32733 seconds now so this would clear up by tomorrow automatically. | 22:30 |
| rwp | If I probe the nameservers directly then I do see a new IP address for it. I'll kick things with a named restart. | 22:31 |
| rwp | But strangely the old IP address is still listening to smtp port 25 and still answering as email.devuan.org which is why I didn't notice an IP change. | 22:32 |
| rwp | Obviously for popcon it is not critical information at all but I assume other email goes through there and it might reduce confusion if that were disabled. | 22:32 |
| rwp | Just to close: "service named restart" followed by "postfix flush" and the queued messages were transferred. Thanks! | 22:34 |
| bb|hcb | rndc flush would be easier, no? | 22:53 |
| bb|hcb | Sorry, that was my mistake - we decomissioned one server and didn't notice that VMs running on different hosts were using ips from it... | 22:56 |
| bb|hcb | About TTL, I will consider decreasing even further, like 30m - that would be good to have both usable cache and refreshing if the need to renumber something comes again | 22:58 |
| rwp | Coincidentally my main server is changing ISPs tomorrow so new addresses for me. Tonight I am reducing my TTLs all around in preparation for tomorrow's changes. | 22:59 |
| rwp | I normally use 14400 4-hours but then reduce to 1800, or even 300, if I am planning changes. Then relax back to 4-hours afterward. | 23:00 |
| bb|hcb | That is an option if you notice on time. BTW. deb.d.o and CC.deb.d.o have a very low TTL and there is no visible bad effect on the auth DNS servers | 23:05 |
| rwp | DNS is actually a pretty amazingly resilient network distributed database system. | 23:07 |
| rwp | As long as the TTL isn't too short then computer speed and network speed today is such that it's hard to notice problems. | 23:07 |
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