Cloudron Forum

Thanks again for the tips!

@girish
https://forum.cloudron.io/post/95624

Here is the answer from the provider:
"Your environment uses VLAN technology to create virtual networks. VXLAN reserves 50 bytes of headers for its own needs, which limits the maximum data transfer size in Ethernet packets to 1,500 bytes. For this reason, if you use the MTU 1500, the actual payload size will be reduced by 50 bytes, leaving 1,450 bytes for data transmission.

Unfortunately, therefore, the MTU on the interfaces in your configuration should be set to 1450 to avoid data transmission problems. An attempt to set the MTU above this on the ens3 interface will result in errors, since the networks in OpenStack are limited within these values."
I took another VPS from them, only from the old archive tariff. There is an mtu value of 1500.
I don't think this is a problem for the VPS provider.

It was a new installation on a new VPS. The problem is really in the mtu - there must be the same values. I decided radically for myself - I took another VPS. Thanks for the answers, the topic can be closed. I hope no one else will face such a problem.

@girish Thank you so much for the information!
But it wasn't enough. It is also necessary to bring the MTU value on all veth, br and docker0 network interfaces to mtu 1450.
Is it possible to do this? If possible, please tell me how.

Messages cannot be cleaned. You can only delete the nextcloud.log file. And what does the log file and Nextcloud itself have to do with it? My Nextcloud app store is not working. Is it that hard to change the mtu value to 1450?

I tried to ping from the VPS terminal. Nextcloud and Startpage pings are taking place. They do not pass on edri and eff.

I installed Nextcloud. There are errors in the screenshots. I wrote about the problem to the hoster. They said that the problem is in the mtu. I have Ubuntu 24.04

Hello everyone.

root@cv4181645:~# ip a | grep -e "ens3" -e "docker0"
2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc fq_codel state UP group default qlen 1000
    inet 192.168.0.32/24 metric 100 brd 192.168.0.255 scope global dynamic ens3
4: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0

How do I change the mtu in cloudron to 1450?

Password-protect URLs using AES in the browser; create hidden bookmarks without a browser extension
https://github.com/jstrieb/link-lock

Thank you! The problem has been solved.

How to resolve this issue?

Hello everyone. The login still doesn't work.

https://mnmnotmail.org/
https://github.com/networkimprov/mnm

The mnm project is building a legitimate email replacement: a client, a server, and a simple protocol between them. It’s designed for everyone, but especially:

• Organizations and departments where a phishing attack could be catastrophic, and that rely on internal email. Examples: manufacturing, public infrastructure, government, finance, research & development, information technology.

• Services and websites whose customers/members exchange email with the site or each other, and dislike the message scanning done by webmail sites. Examples: legal affairs, health care, job search, family matters.

Hello.
It would be nice to add an e-book storage and reading service. For example, this is https://github.com/internetarchive/bookreader
Or something similar.

@girish As a cloudron app.

Good afternoon. Do you have plans to add Zabbix?