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.
16,425
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Ubuntu Samba tree connect failed: NT_STATUS_BAD_NETWORK_NAME
I am stumped. After hours of time I haven't made any progress. I am getting the following error. Running Ubuntu 22.04. What's crazy is I have this working on another machine running the same version. ...
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20
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Linux ubuntu: Determine what service/program is blocking ports
I have inherited a strangely setup server running ubuntu 22.04 and I cannot figure out what is blocking ports. iptables show nothing - just Chain Input policy accept. There is no ufw or firewall of ...
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Unable to ssh into remote server, despite port open and server reachable [closed]
As the title says, I am trying to create a home Linux server, and everything was going fine, including when I ssh into the server over LAN from both my laptop and my desktop.
I am a total beginner ...
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How to get real IP in backend via proxy [closed]
I would like to use a proxy server to get the real IP from which I am connecting.
However, since it is a Minecraft server, it is not http.
Is there any software?
Bungeecord and Waterfall are not used ...
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21
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How can I Forward traffic through UBUNTU?
I have a Ubuntu Desktop client and two Ubuntu server.
Ubuntu servers are two separate VPS in Germany and Netherland.
I need to route SSH traffic through Germany VPS, for example;
When I run ssh root@...
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39
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How to access "/" directory in macOS finder when sftp'ing to a server as the root user. Only able to access directories above /root/*
I have just upgraded an Ubuntu server and during the upgrade, I decided to keep all old versions of .conf files instead of replacing them with the upgraded package versions. Now, I have to go and ...
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Storage configuration leads to Ubuntu Linux Server Boot failure - ( initramfs )
Ubuntu Server 22.04 installation is completed and successful but the OS doesn't boot!
What does mean initramfs ?
I've tried to install Ubuntu Server 22.04 on VM.
Installation is completed and ...
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2
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39
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Postfix : change email from unix_user@domain to a something@domain
I have two domains on a server, they are rarely used and they have 2 ubuntu users like
domain1_user
domain2_user
and I want to associate email addresses like
info@domain1
info@domain2
Obviously I ...
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1
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41
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How do I install .NET system-wide on an arm64 Ubuntu server?
I'm trying to install .NET runtime 6.0.16 system-wide. I need multiple users on a server to be able to access this from PATH. Generally, Microsoft recommends to use apt to install .NET packages -- but ...
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68
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Docker repository does not have a release file for apt-get update on debian bullseye
Trying to get an updated / current version of docker on debian bullseye, I get:
$ sudo apt-get update
...
Ign:14 https://download.docker.com/linux/ubuntu bullseye InRelease
Err:15 https://download....
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25
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Locked myself out of my system...is there any way I can fix this? [closed]
So, long story short, I did this the other day:
1.) Run the command:
sudo nano /etc/pam.d/common-auth.
2.) Add a line above the first non-commented line and add the following code:
auth required ...
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1
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37
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Permission denied (publickey) using ProxyCommand
I have two servers which I ssh jump into using a third server. I can get into one of the servers, but not the other, even though my public key is marked on both servers under authorized_keys.
My local ...
- 101
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err_too_many_redirects in nginx subdomain config
I was trying to config my subdomain www.chat.feromonn.com but in browser its giving message "too many redirect"
Please let me know what i am making mistake :
server {
listen 80;
listen [:...
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1
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40
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/var/mail/root - Shows in all bash output
I'm using Ubuntu 18.04.6 LTS and recently installed apt-get install mailutils. Have noticed that while running any command it is showing You have new mail in /var/mail/root additionally.
So i have ...
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56
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Postfix - Cannot run - update-ca-certificates -fresh
I just face an extensive Email service disruption at my work. During the incident, we had some postfix giving some errors concerning:
Fatal: connect #n to subsystem private/rewrite: Connection refused....
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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 { ...
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19
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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 ...
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23
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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 ...
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30
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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 ...
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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 ...
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301
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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 ...
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ERROR '>=' not supported between instances of 'NoneType' and 'str' in virt-mager
I am using Ubuntu 20.04 but virt-install doesn't work while my virt-manager version is 2.2.1
$virt-manager --version 2.2.1
i installed packages
$sudo apt install libvirt-clients libvirt-daemon-system ...
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18
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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 ...
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0
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61
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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 ...
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1
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105
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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 ...
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15
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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 ...
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21
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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 ...
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78
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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 ...
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25
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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 ...
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77
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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 ...
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143
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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 ...
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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 ...
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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 ...
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77
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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/...
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29
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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 ...
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1
answer
54
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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 ...
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29
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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?...
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45
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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 ...
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129
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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 ...
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40
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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 ...
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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 ...
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82
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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'...
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20
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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 ...
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43
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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 ...
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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 ...
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0
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54
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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", ...
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36
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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 ...
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57
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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 ...
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24
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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 (...
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0
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41
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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....
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