Clicking on a Domain's email section in the Dashboard causes Cloudron to totally restart!

[girish]

@scooke What are the logs right before the restart logs? There's not obvious crash backtrace?

[scooke]

@girish
What's below is all in the log. I was on the Domain panel, it had been stable for awhile and I hadn't done anything, but as soon as I clicked on the Email link, it restarted. I wrote anotherdomain.com this time because this was a new domain seemingly connected to this problem. I've even cleared out domains that weren't in use, and rebooted, before this latest restart.

Jul 10 23:06:12 box:apphealthmonitor app health: 26 alive / 3 dead.
Jul 10 23:06:13 box:cloudron Getting logs for box as json
Jul 10 23:06:22 box:apphealthmonitor app health: 26 alive / 3 dead.
TypeError: Cannot convert name to ASCII
at Resolver.queryTxt [as resolveTxt] (dns.js:227:48)
at Resolver.resolve (dns.js:263:21)
at Object.resolve (/home/yellowtent/box/src/native-dns.js:32:14)
at checkDkim (/home/yellowtent/box/src/mail.js:220:9)
at /home/yellowtent/box/src/mail.js:480:13
at /home/yellowtent/box/node_modules/async/dist/async.js:2948:28
at eachOfArrayLike (/home/yellowtent/box/node_modules/async/dist/async.js:500:13)
at eachOf (/home/yellowtent/box/node_modules/async/dist/async.js:551:16)
at awaitable (/home/yellowtent/box/node_modules/async/dist/async.js:208:32)
at /home/yellowtent/box/node_modules/async/dist/async.js:2947:9 [ /home/yellowtent/box/box.js:61:17 ]
Jul 10 23:06:24 box:mail checkRblStatus: anotherdomain.com (ip: 209.182.238.112) servers: []
Jul 10 23:06:29 box:server ==========================================
Jul 10 23:06:29 box:server Cloudron 6.2.8
Jul 10 23:06:29 box:server ==========================================
Jul 10 23:06:29 box:settings initCache: pre-load settings
Jul 10 23:06:29 box:tasks stopTask: stopping all tasks
Jul 10 23:06:29 box:shell stopTask spawn: /usr/bin/sudo -S /home/yellowtent/box/src/scripts/stoptask.sh all
Jul 10 23:06:30 box:dockerproxy startDockerProxy: started proxy on port 3003
is up and running. Logs are at /home/yellowtent/platformdata/logs/box.log
Jul 10 23:06:30 box:shell removeCollectdProfile spawn: /usr/bin/sudo -S /home/yellowtent/box/src/scripts/configurecollectd.sh remove cloudron-backup
Jul 10 23:06:30 box:shell removeCollectdProfile (stdout): Restarting collectd
Jul 10 23:06:30 box:shell removeCollectdProfile (stdout): Removing collectd stats of cloudron-backup
Jul 10 23:06:30 box:reverseproxy writeDashboardConfig: writing admin config for toutdo.com
Jul 10 23:06:30 box:shell reload spawn: /usr/bin/sudo -S /home/yellowtent/box/src/scripts/restartservice.sh nginx
Jul 10 23:06:31 box:platform initializing addon infrastructure
Jul 10 23:06:31 box:platform platform is uptodate at version 48.18.0
Jul 10 23:06:31 box:platform onPlatformReady: platform is ready. infra changed: false
Jul 10 23:06:31 box:apps schedulePendingTasks: scheduling app tasks
Jul 10 23:06:31 box:cron startJobs: starting cron jobs
Jul 10 23:06:31 box:cron backupConfigChanged: schedule 00 00 23 * * 1,3,5 (Europe/Paris)
Jul 10 23:06:31 box:cron autoupdatePatternChanged: pattern - never (Europe/Paris)
Jul 10 23:06:31 box:cron Dynamic DNS setting changed to false
Jul 10 23:06:32 box:notifications alert: id=backupConfig title=Backup configuration is unsafe ack=true
Jul 10 23:06:42 box:apphealthmonitor app health: 26 alive / 3 dead.
Jul 10 23:06:42 box:cloudron Getting logs for box as json

[girish]

@scooke Can you write to us at support@cloudron.io ? Would be good to have this fixed because I can't make out what the issue is. Thanks!

[scooke]

@girish Ok, will do.

[scooke]

So, I've sent you an email, but I've been poking around, and removed an IDN domain that didn't have an app installed. Even though it wasn't the initial domain that seemed to spark the problem, it could be related to the other little nugget that was in the logs, something about not being able to translate to ASCII.

If this is related, could there be an issue with IDN domains on Cloudron? I had both a Chinese domain, and a RtL domain. I've removed both, and so far when I go to a few different places in the Dashboard, and then click in Email, everything works smooth, the green circles appear almost instanteously (where before it took awhile).

One of the IDN's didn't actually have an A record pointing to the Cloudron (the Chinese one). Could that have caused some glitch?

[nebulon]

@scooke right, we are using the native nodejs resolver here https://nodejs.org/dist/latest-v14.x/docs/api/dns.html#dns_class_dns_resolver and it appears to be crashing there.

[luckow]

@scooke Universal Acceptance is a (not so) big issue for the internet. In short, for domains other than ascii, the internet seems to be broken.
There is an initiative around domains other than ascii called Universal Acceptance https://uasg.tech/
It's not just about Chinese domains. Try sending an email to thomas@müller.de, it will fail.

[nebulon]

To update, I can reproduce this with a chineses IDN and looking for a fix now.

[scooke]

@nebulon I wonder why this would pop up now. Both the Chinese domain and the RtL domain were on my Cloudron for a long time. Thanks for looking into it @nebulon.

And interesting link @luckow. I'm reading some of the info there now.

[girish]

@scooke Could be related to the fact that recent updates upgraded nodejs.

[scooke]

@luckow Before I send an email to Mr. Thomas Müller, will he be expecting it, or no? Is this someone real?

[luckow]

@scooke wait. let's see https://müller.de/ is a connected domain (not mine). And maybe there is a thomas there
Send out and say it's only a test

[scooke]

@luckow The email was returned!

<thomas@xn--mller-kva.de>: host w015e2f2.kasserver.com[85.13.157.81] said: 554
    5.7.1 <thomas@xn--mller-kva.de>: Relay access denied (in reply to RCPT TO command)

However, sending emails to my two IDN domains work fine. Even using the "real" name of the domain and not the punycode rendering. These are though MXroute.

I guess the issue is in the updated nodejs.

[nebulon]

@scooke we have traced this down to a nodejs bug apparently with the domain in question.
The upstream issue is at https://github.com/nodejs/node/issues/39397