Questions tagged [ubuntu-22.04]
Ubuntu 22.04, named "Jammy Jellyfish" is a Long Term Support release of Ubuntu Linux (released on April 21st, 2022). Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.
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Is my Ubuntu/Postfix backup Email server working properly? : "connect to mail.mydomain.com[483.31.59.1]:25: Connection refused" How to fix?
I have two email servers running Ubuntu 22.04, with postfix. My main email server is working flawlessly. However, there are times when the email server goes down for maintanence or updates. During ...
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How do I fix the default FROM address on a system email sent via Postfix
I am using Ubuntu 22.04 LTS and Postfix to send messages out through SendGrid. I followed the tutorial at here https://www.twilio.com/docs/sendgrid/for-developers/sending-email/postfix
I have several ...
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Netplan one NIC to access a specific IP, another NIC for the remaining traffic to the Internet
I have an Ubuntu 22.04 server with two network interfaces:
(enp0s31f6) connected to a Firewall of a private network with output only to the ip 11.162.66.209
(enp6s0) connected to a 4G router output ...
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zentyal service active but not running but shows active and in exited state
Zentyal service shows active(exited), I couldn't ping if i wouldn't restarted the service. After restarting the Zentyal service I get the following error pls, review the attachment.
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Ubuntu22: Snap store app update action causes popup "authentication was required" yet there's no way to authenticate
If I hit update for Chromium or update-all the popup appears authentication was required" (yes, past tense). I would be able to work with a "you need to authenticate to do this" but no ...
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Routing all traffic (in and out) through wireguard tunnel with port forwarding
I went all over the internet and I couldn't find a working iptables config. I have a wireguard network 10.0.0.0/24 which has 3 nodes the tunnel itself (gateway) 10.0.0.1, Web Node 10.0.0.2, D1 Node 10....
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microk8s kubelet constantly restarting
OS: Ubuntu Desktop 24 LTS
Microk8s: v1.30.1 revision 6876
I was trying to bring up some containers, using helm, but the pods never get created:
sudo microk8s kubectl get all --all-namespaces
NAMESPACE ...
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TC filter not working properly
I have an OpenVPN server where I control traffic from clients to server subnets using iptables. Now, additionally, I want to control bandwidth of the network using tc.
Here are the class definitions:
...
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Ubuntu 22.04 Set up net plan with multiple network interfaces only works with both default routes
I'm setting up a server with 2 network interfaces, I want the main network interface to be the default one to be used, and only use the other for 3 very specific subnets.
However, when I configure the ...
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How to diagnose slow ssh with OpenStack floating IP
I run VPS instances created with OpenStack hosted by a major provider. When I ssh from machine1 in the LAN to a machine2 or local IP address, the connection is immediate and always fast. With ssh from ...
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Memory cgroup out of memory: Killed process 10622 (unbound) total-vm:325984kB, anon-rss:319528kB, file-rss:0kB, shmem-rss:0kB, UID:1000 pgtables:672kB
im seeing the following errors in /var/log/kern.log and im trying to figure out which container it relates too, any idea how i might do this?
May 22 02:54:57 docker-02 kernel: [ 235.238815] Memory ...
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Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 error on 5.15.0-1032-realtime
I am trying to isolate cores on an ARM64 Ampere (Supermicro) for real time workloads. When running workloads with RT prios I see the below error. I am not sure whats going wrong in this moment. I am ...
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Too many inodes in /var/lib/apache2/fcgid/sock
In my Ubuntu 22.04 system, with apache 2.4.52 running, Apache2 is generating too many inodes:
root@m1:/var/lib/apache2/fcgid/sock# ls | wc -l
816320
I'd like to ask whether it is safe to rm these ...
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How Linux processes and modules choose numa node
I have a Ubuntu 22.04 server which is numa enabled node with 4 nodes. Comparatively other nodes, memory usage is high on node0. I noticed this contains most of the system binaries, services and ...
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Using Titan key to initial disk decrypt in Ubuntu 22.04
I'm trying to configure my Titan key to initial decrypt of hard disk (as an alternative to password).
I'm following the tutorial in Unlocking LUKS2 volumes with TPM2, FIDO2, PKCS#11 Security Hardware ...
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