Questions tagged [ubuntu]

Ubuntu Linux is a Debian derivative that aims to bring Linux mainstream. Questions on this site should generally refer to Ubuntu Server. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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bind9 multiple ports zone and dns64

When I add the zone it stops working. How can I use them together? I want to go to the zone "." via port 5353 And go to DNS64 via port 53 zone "." { type slave; masters port 5353 { ...
Abdulkader Alrezej's user avatar
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9 views

phpMyAdmin loading incredibly slow through nginx reverse proxy

So I have a Synology NAS at home with some services running that I need to be accessible from the WWW, but understandably do not want to open ports on my home IP to the wide internet (especially ...
jnko's user avatar
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ARP issue with VLAN on VMWare Workstation [migrated]

I have two vm in vmware workstation 17 pro and connected like this (by the way os is ubuntu 22.04) ubuntu1 -- vlan 10 -- ubuntu2 but they are cant connect each other enter image description here so i ...
Idiot's user avatar
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Is there a significant difference when virtualizing a VPN server?

Basically, my question is this: I have a "server"(a regular PC) with Debian installed. On this machine, I need to have a Tomcat service running at the same time as a VPN server service. To ...
Daniel Manjabacas Meneses's user avatar
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Getting ioctl(setctty): operation not permitted: unknown error in K8S-Docker setup

Getting the permission error when trying to start a container in Ubuntu-AWS virtual machine. I am using kubectl apply -f test.yaml to deploy. Nginx is working normally in the same VM. I tried changing ...
Ravi Kumar's user avatar
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51 views

No VM guests are running outdated hypervisor (qemu) binaries on this host

curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip" unzip awscliv2.zip i have used above command to transfer the awslive.zip file for installation of ...
Rajesh Maniyar's user avatar
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14 views

ERROR '>=' not supported between instances of 'NoneType' and 'str' in virt-mager

I am using Ubuntu 20.04 but virt-install doesn't work virt-manager --version 2.2.1 i installed packages sudo apt install libvirt-clients libvirt-daemon-system libvirt-daemon virtinst bridge-utils ...
CADENTIC's user avatar
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AWS EC2 public access to service running on private IP

I am running deepracer for cloud, on an EC2 instance. This is creating a video stream on the instance's private IP on port 8001. But I cannot view it. I get the html content when I curl the port from ...
Teh__docco's user avatar
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0 answers
16 views

Routing database traffic through a server [closed]

I have access to a remote database (Server A) that I would like to connect a Tableau server (Server B) to. I do not control the servers for Server A or Server B. The database requires the use of a VPN ...
jimbo's user avatar
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Openvpn Windows Connected, but can't access any server/site

I have a Ubuntu server, with openvpn server and a web server over nginx, my android client connect to vpn and can access to web server with ip 10.8.0.1, but windows client with same Ovpn profile ...
md.119's user avatar
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Apt asks me "Which services should be restarted?", but won't accept my answer

Restarting services... Daemons using outdated libraries -------------------------------- 1. containerd.service 4. fail2ban.service 7. networkd-dispatcher.service 10. systemd-logind.service ...
Alex's user avatar
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Shutdown after X failed login attempts [migrated]

I have a laptop with Xubuntu 22.10, whose SSD is encrypted with LUKS, so if it's stolen when shut down, my data should be safe. But it's more likely to be stolen while it's switched on, and then only ...
Michael Marx's user avatar
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Performance problems when running Wireguard between Linux virtual machines. Same config on physical hosts works fine

I’m running into performance problems with Wireguard tunnels running between two virtual machines on the same hypervisor (running under Qemu/KVM) and I would greatly appreciate any insights/advice ...
Tulkas's user avatar
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Kerberos Migration Issues - Ubuntu Server

We are in the process of migarting the active directory from a Debian server to Ubuntu. LDAP (Slapd), libnss, kerberos, pam, and nfs have been configured. However on client login attempt the server ...
guest123's user avatar
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Openvpn forward all traffic not working unless I flush iptables

I want to run an openvpn which forwards all traffic, but it only works when I flush my iptables rules. Can someone tell me which rule(s) are causing the problem? iptables-save output: *nat :PREROUTING ...
ehh's user avatar
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LDAP server migration from Debian to Ubuntu Error

We are trying to migrate ldap from an outdated Debian server to a Ubuntu server. All attempts at using slapcat, modifying the config manually, and other tricks have failed. I believe the old database ...
guest123's user avatar
1 vote
2 answers
93 views

How to use nft on linux bridge to block access to certain ip addr?

I have an Ubuntu box with a bridge br0 defined. The bridge has eth0 connected to the internet service and eth1 connected to the network port of a PC. The bridge is functioning as expected and passing ...
Michael's user avatar
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21 views

How to secure linux Server for dev purpose [closed]

I'm working on a website project with a friend, and we're using instances like Keycloak and MongoDB for our project. To avoid the need to install everything on each of our devices, I've rented a ...
RandolfDerGraue's user avatar
1 vote
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41 views

unable to mount NFS from command line. Works fine from fstab. works fine if I disable iptables

Ubuntu 20.04, with IPTables firewall. I explictly allow NFS ports in an out of servers. return (Related or established sessions are permitted) I have explicity set ports in /etc/sysctl.conf for all ...
Jwaltrip4's user avatar
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1 answer
29 views

How do I get my raid array back and mounted after reboot

I had created a raid-1 array for two drives (sde and sdf) using the normal mdadm process and had created it under md1 and mounted it to /mnt/storage. After a reboot md1 no longer exists. My /mnt/plex ...
Adam's user avatar
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-1 votes
1 answer
31 views

Error trying to use VDI image from Virtual Box Windows host on Ubuntu host [closed]

After being annoyed with windows updates, I decided to make a final move to Ubuntu on my laptop. I have backed up Virtual Box machines that I have been using in Windows. I am now trying to set up the ...
zbro's user avatar
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No ethernet connection on Intel® X722 10GBase-T Ethernet Controller on Ubuntu-Server 18.04 and 22.04

I'm trying to connect a server with installed Ubuntu-Server to the Internet via Ethernet cable with no success. Here is the link to the platform we use - https://www.supermicro.com/en/products/system/...
Alexander Tkachenko's user avatar
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21 views

Can not SSH to GUI Ubuntu on Login Screen

I have a laptop with Ubuntu installed, and I've set up SSH using a key, and everything was working fine (I could SSH into the laptop from another computer). Then, I rebooted the laptop, and on the ...
Thuannb96's user avatar
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1 answer
51 views

Is it possible to configure a Linux/Ubuntu computer to be network silent?

I'm testing a customized network device using a Ubuntu computer from which I send network packets and check the actions on the network device. I'd like to only send over the packet I want, but since ...
fiedel's user avatar
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0 answers
27 views

Why is my app periodically killed?

My app is periodically (once a few days) killed on Ubuntu 22.04 VPS with 1GB RAM: why this can happen? is it possible that this is because the system runs out of memory or swap? What logs can I check?...
Alexey Starinsky's user avatar
0 votes
1 answer
25 views

ZFS import pool by ID as name already exists

My original system won't boot (startup). There are many errors which I am not able to solve. I have installed ubuntu on a new device and can see the old pools from the old disk. I cannot import the ...
Simon2019's user avatar
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63 views

Configure QUIC and HTTP/3 in Ubuntu

I want to install and configure nginx-1.19.0 with HTTP/3 support on Ubuntu 22.04. OpenSSL version is 3.0.2. I was surfing in internet but I didn't find something straight forward to guide me how to ...
Leotrim Lota's user avatar
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0 answers
28 views

AWS StrongSwan IPSec Tunnel with Cisco fails during Phase 2 with TS_UNACCEPTABLE

I need to to setup a site-to-site IPSec tunnel with a vendor whom We need to access each other's API servers seating on the LANs using their respective Public IPs. We're using AWS, And I have ...
kmos.w's user avatar
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Root user action constraints with sticky bit

I have an ubuntu 20.04.x instance on AWS which displayed very unexpected behaviour. I have a file in /tmp: root@ip-10-0-1-145:/tmp# ls -l api_requests_2023-08-23.log -rw-r--r-- 1 www-data www-data ...
Samveen's user avatar
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0 votes
2 answers
82 views

Unable to access apache2 from outside

I'm hosting a default site for apache2 server on AWS EC2 (Ubuntu) with Elastic IP. Security group set to open all inbound (testing purposed). I can access the server via SSH using public IP but I can'...
Artur Kedzior's user avatar
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0 answers
20 views

Postfix 2nd domain

I have two postfix servers(virtual machines) on same host 1st domain = mail.xyz.org 2nd domain = mail.xyz.edu I want to send mail from 1st domain to 2nd domain. If i try, it gives error: Recipient ...
munishhh's user avatar
-1 votes
0 answers
38 views

Access Ubuntu OpenVPN Client From Other Machines on Local LAN

I have an OpenVPN client running on an Ubuntu machine (192.168.107.1/24) and able to successfully connect to a remote OpenVPN server (10.0.0.1/24). The problem is when the client is connected, other ...
ProAm500's user avatar
0 votes
1 answer
125 views

How can I speed up a zfs resilver on a 24x 16TB drive draid2 array: "117T total... 47 days 02:31:23 to go"

(My apologies for the multiple edits to clarify formatting) As above. The drives show no SMART errors. Is there a way to check for HBA <--> drive communication errors? This is running under ...
docBrian's user avatar
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0 answers
21 views

How i can init kubeadm on containerd or cri-docker?

kubectl version --client `Client Version: v1.28.1 Customize Version: v5.0.4-0.20230601165947-6ce0bf390ce3` kubeadm version `kubeadm version: &version.Info{Major:"1", Minor:"28", GitVersion:"v1.28.1", ...
Hardware noob's user avatar
0 votes
1 answer
36 views

Two processes have different behavior while running with the same command and same binary file

There's an app in Ubuntu server, which runs a FFMPEG instance. That instance keeps working fine. But when I run the same command with the same binary executable in terminal, it exits after 3 or 4 ...
james hofer's user avatar
1 vote
0 answers
40 views

Any attempt to connect to a server with ssh times out

after an attempt to get up a IKEv2 vpn server, I lost an ability to ssh to my server (the ssh just times out). I was able to console into the machine (with ubuntu) with hetzner console and reset all ...
Roaring Stones's user avatar
1 vote
0 answers
23 views

Ubuntu 22.04.3 LTS running mdadm 16 x 8TB Raid 6 - Is it possible to upgrade individual disks and use the space immediately without using LVM?

Some more background... I have 4 realtime arrays (always running for me to use) - the 2 big important arrays (40TB [20TB used] and 112TB [105TB used] are being backed up onto a 16 x 8TB Raid6 array (...
PerryCS's user avatar
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0 answers
39 views

DNSSEC - Unable to sign the relevant files

I have set up a working DNS server on an Ubuntu 22.04 LTS as part of a single server (DNS, SPF, Email, firewall etc) IP: 192.168.122.189 Test Domain: jetj.ltd Hostname:mail The files I have are: db....
Kartibok's user avatar
0 votes
1 answer
42 views

Block access to remote mysql database using iptable in ubuntu 20.04

I am configuring iptable rules in a Ubuntu 20.04 machine (Client). There is a mysql db in a remote machine (Server). I need to block access from client machine to mysql DB server. These configurations ...
Dhanushka Ekanayake's user avatar
-2 votes
0 answers
25 views

Website renders 403 errors on iPhone 13 and newer, but works perfectly on iPhone 12 and older. How to debug website for newer iPhones on LEMP server?

I have a live production website at https://www.mcmo.is . When I go to the site on my phone (iPhone 11) in safari, everything works perfectly and all of the links on the front page are clickable and ...
DanRan's user avatar
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-1 votes
0 answers
35 views

Map custom local domain to IP:PORT in Ubuntu 22.04

I have an Ubuntu 22.04 host installed and I have run a guest Ubuntu 20 virtual machine on it with an static IP: 192.168.1.51. Inside the VM, I have a service running on port 8081. Now, I am trying to ...
Stack crawler's user avatar
0 votes
0 answers
28 views

Docker container logs not found after dockerd restart

I am running a Ubuntu 18.04 server with Docker (v20.10.12) containers running on it. I have about 5 containers running at a time and they consume about 1.5GB of memory on the regular, while my server ...
untx_bottom's user avatar
0 votes
1 answer
79 views

Recover network connection from ubuntu 22.04 console after crash

my perfectly operational ubuntu machine with nvidia GTX 1650 crashed when I tried sudo apt-get remove python3 Now it boots directly into terminal. When I run startx it shows a graphical window with ...
Gautam's user avatar
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1 vote
0 answers
62 views

MYSQL use too much disk (read / write)

I have big problem with my server. I am using Ubuntu linux version 22.04. The problem is in the write / read disk (light for the disk is all the time ON) when I have turn on apache (PHP) and MYSQL. ...
Jure's user avatar
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4 votes
1 answer
121 views

HP Smart Array P812 HBA mode Masked Drives

I have an HP Smart Array P812 card flashed to HBA mode. Kernel patched Linux for this module, Ubuntu 22. Everything was working a week ago, I had passthrough of the drives, I even used them to test ...
jfreak53's user avatar
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0 answers
28 views

How to save my files from initramfs for Ubuntu 22.04, which is unable to boot?

My Ubuntu got broken because UUID isn't correct, and I try all the ways but not fix it, so I decided to reinstall Ubuntu again. However, I need the old files in Ubuntu, is there any way for me to copy ...
Ting-Kai Hsu's user avatar
0 votes
0 answers
44 views

Double Nginx installation issue

It seems i somehow have two installations of Nginx on a server, Nginx Amplify reports two installations (see screenshot), one of them not sending updates of course, and occasionally when restarting ...
Julien's user avatar
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0 votes
0 answers
30 views

Wireguard VPN not allowing connections

so I have wireguard setup on my linux server and im trying to connect to it on my windows machine. Here is the config i am using to connect to it on my windows machine. [Interface] PrivateKey = hidden ...
Jelly Fish's user avatar
0 votes
1 answer
48 views

Shared server resouces mangement

We have an on-prem Xeon server running Ubuntu LTS that is shared across few developers. Each developer logs in with his on user and run various workloads on it. The problem we experience is when ...
stdcall's user avatar
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0 votes
0 answers
15 views

Cuckoo sandbox - Failure in AnalysisManager.run

I have cuckoo running on Debian 10 with an Ubuntu guest VM. I submit a file for analysis, it runs and says "reported" but the report loads a 404 page. I see the following on the cuckoo ...
Matt Morrow's user avatar

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