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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14k views

x11vnc on Ubuntu 16.04 Gnome with systemd

I am having troubles to start x11vnc service on Ubuntu server 16.04 Gnome. It used to work just fine under 14.04. Not sure if related to x11vnc itself or the systemd. Here is the systemd service file ...
-1 votes
1 answer
47 views

Overwrote data on VPS Drive

I have a VPS 16 cores, 34 GB RAM and 2.5TB disk. I misread the webui and instead of inserting my Ubuntu 5 GB ISO into the virtual CD drive, the system copied the files to the disk. Now the drive is ...
0 votes
0 answers
17 views

Install snort error with make

make[2]: *** [scr/js_norm/CMakeFiles/js_norm.dir/build.make:106: src/js_norm/CMakeFiles/js_norm.dir/js_tokenizer.cc.o] Error 1 When I run the command make -j $(noproc) I get an error like on the ...
0 votes
1 answer
39 views

Getting an error message when trying to run apache2 on ubuntu

Hello i wanna run a server for my php application on apache2, but when i try to download apache2 like it sais on this website https://www.digitalocean.com/community/tutorials/how-to-install-lamp-stack-...
0 votes
1 answer
67 views

Why is Ubuntu 22 still permitting login as root?

Running Ubuntu 22, it still allows me to log in via SSH as root-user. I run the following configuration in /etc/ssh/sshd_config: PasswordAuthentication no PermitEmptyPasswords no PubkeyAuthentication ...
1 vote
2 answers
4k views

regenerate iso file from running livecd -- dd won't run reliably and genisoimage has catch-22s

In the field I need some users to be able to make iso files reliably from a cdrom that is also serving as a mounted LiveCD and so I concocted a manual test case before doing any scripting. The test ...
0 votes
0 answers
16 views

Transmission daemon web interface [closed]

I can't enter from another virtual machine on the web interface transmission-daemon. I entered IP address 10.0.2.6 into the RPC whitelist. Transmission work fine on server where daemon runs, but ...
0 votes
0 answers
27 views

nginx error - (2: No such file or directory) when making req through frontend

In an ubuntu server I have two versions of a node.js + express & reactjs app , one for test and another for prod. Their path is something like (sorry for the bad representation. Tell me if you ...
0 votes
1 answer
25 views

GUFW Graphical Noise, Blurred Options

I installed GUFW but when I run it I have blurred options, buttons, graphical glitches and I can't select any option because I can't see anything. enter image description here
0 votes
1 answer
490 views

NFS over wireguard on Ubuntu. Mounting fails with error: "reason given by server: no such file or directory"

I have setup wireguard VPN network 192.168.6.x. The network topology(if that is the correct term) is: [client] ----- VPN ---- [VPN server] ----- Local net-----[NFS&SSH server] [192.168.6.32] ...
0 votes
0 answers
45 views

What is the best way to partition Ubuntu22 with Packer (and ansible?)

I have this all working, but I am wondering if there is a better way to do this? It seems very difficult to make small changes this way. I'm using the vsphere-iso provisioner here, but I can also work ...
7 votes
1 answer
13k views

Every startup i need to manually run fsck /dev/mapper/ubuntu--vg-root

Hi every day when I start my ubuntu 18.04, then it's not starting and gives a below error. (initramfs) exit /dev/mapper/ubuntu--vg-root contains a file system with errors, check forced. Inodes that ...
0 votes
0 answers
24 views

Websocket server - working for local connections but not remote?

I am running an embedded Jetty server on Ubuntu (22.04.3), listening to port 8734 (arbitrary number), and testing it with wscat. The following command connects fine if run on the same machine: wscat -...
0 votes
0 answers
34 views

Network error:kex_exchange_identification: read: Software caused connection abort banner exchange (SSH)

I met this issue while trying to clone a repo in a gitlab private server, so I added verbosity and tried to connect to it first here is the output $ ssh -i test -T -vvvv [email protected] ...
0 votes
1 answer
1k views

free and htop report totally different numbers

See the following screenshot: The "total" amount of memory is reported at 8GB by both htop and free, but while free reports that only 2.7GB is "used", htop reports that 7.53GB is used. free reports ...
0 votes
1 answer
34 views

Exim not authenticating for sending email

I have updated my Exim (on Directadmin) to version 4.97.1 In the process something went wrong and now i can't send e-mails any more. I can receive email (remote and using LMTP with Dovecot). Also i ...
2 votes
3 answers
15k views

nginx systemd[1]: nginx.service: Failed with result 'exit-code'

as relevant with current times so i'm installing myself a mastodon instance... when I try to restart nginx i get the error root@instance-20221113-1925:/home/ubuntu# sudo systemctl restart nginx Job ...
1 vote
2 answers
4k views

UFW firewall rules for transmission-daemon on ubuntu 20.XX

I have got transmission running on ubuntu 20.XX VPS and i can log into the web interface with MYIP:9091/ to manage the files. I am using ufw firewall. I have added these rules to allow the following ...
0 votes
1 answer
44 views

Ubuntu 22.04 cloud-config autoinstall configuration not working for filesystem

Under Ubuntu 22.04, I am attempting to use the following for auto installation and it keeps saying that "autoinstall config did not create needed bootloader partition". 2024-04-16 00:25:19,...
0 votes
0 answers
23 views

Intermittent "File not found." nginx php (solved)

When accessing certain paths to a web application I'm working on, I am intermittently getting a "File not found." error displaying in the browser that seems to come and go indiscriminately - ...
0 votes
0 answers
5 views

How to convert simpleproxy trace binary output to text

I have simpleproxy running on an Ubuntu server, but there are some issues with one of my proxies, so I restarted the proxy with the -rt flag to trace it & output to a file. The only issue is that ...
0 votes
2 answers
3k views

Ubuntu FTP user has access to every directory

I just created a new user on Ubuntu Server 16.04.3 LTS with useradd. I have vsftpd installed, and #chroot_local_user=YES still commented out. Yet when i connect with my user through FTP to my server, ...
0 votes
1 answer
26 views

Reducing root partition in VPS (Ubuntu 20.04)

I have a virtual server that does not have access to rescue mode I only have ssh access My disk size is 100 GB, which is all allocated to the root partition when installing the operating system. I ...
109 votes
13 answers
283k views

df says disk is full, but it is not

On a virtualized server running Ubuntu 10.04, df reports the following: # df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 7.4G 7.0G 0 100% / none ...
2 votes
3 answers
4k views

.bash_history permissions mysteriously changed

So my ubuntu user's .bash_history just won't show up when I hit history. So I check permissions and the .bash_history in /home/ubuntu is now owned by root. Any idea what might've happened? I ...
0 votes
1 answer
1k views

Ubuntu 20.04 Join Windows Domain for Samba Shares

I've been trying to get an Ubuntu 20.04 server VM (Hyper-V) to join a Windows domain for the purpose of acting as a file server for Windows users, authenticating access to each directory for Windows ...
0 votes
0 answers
16 views

Installed wrong drivers for Epson printer

I have a Kubuntu 22.04 and I had an existing Epson XP-235 printer already working fine with a Windows desktop. I connected the Epson printer to Kubuntu, it was detected an provided a list of drivers. ...
0 votes
1 answer
13k views

curl: (28) Failed to connect to X.X.X.X port 80: Connection timed out

I'm getting this error: curl: (28) Failed to connect to X.X.X.X port 80: Connection timed out When I run this: curl X.X.X.X I'm curling a specific IP address and it fails on both port 80 and 443. I ...
-1 votes
2 answers
62 views

Is there a free rocky linux monitoring tool? [closed]

I am currently looking for a tool to monitor the performance of two Rocky Linux desktop computers. It should monitor aspects such as the CPU, RAM, disk, and network usage (similar to the Windows Task ...
0 votes
1 answer
24 views

How can a folder size be greater than the actual disk capacity on Ubuntu?

So, a little background: I have a 2TB hard disk that serves as a backup for files (ext4 formated) The disk was reporting +90% used space, so I bought a 4TB disk Formated the 4TB to LVM with ext4 My ...
0 votes
1 answer
37 views

the value of cpufreq-info -w and cpufreq-info -f are very different

Environment: # uname -r 5.15.0-91-generic # lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 52 bits physical, 57 bits virtual Byte Order: ...
1 vote
1 answer
6k views

curl: (60) server certificate verification failed CRLfile: none

I'm slowly transitioning from an exclusive developer role and into more of a hybrid DevOps role at my company. Which means I'm new to a lot of this, please go easy on me... :-p My client's server is ...
0 votes
0 answers
18 views

Rsync to exfat external drive, quiet switch not working

I am attempting to use rsync to copy from my linux hard drive to an exfat external drive. The working code to copy from ext4 to ext4 begins as: rsync -Razh The code that I am attempting to use to copy ...
1 vote
2 answers
4k views

Docker build and run very slow

I use docker on Ubuntu bionic. docker build and docker run commands work super slow. It takes few minutes to run a container and few minutes to process each RUN command in dockerfile during building ...
1 vote
2 answers
24k views

Failed to start Raise network interfaces on ubuntu 16.04.01

I am running ubuntu 16.04 (fresh install) with the networking interface configured on dhcp inside virtualbox. This worked perfectly on that box until recently and works still perfect for another box. ...
0 votes
0 answers
61 views

Radius Bulk CoA message to BNG Juniper

I am working in BNG implementation with Juniper MX960 and I am interested in Bulk CoA feature to address accumulation of a series of CoA requests and commits all of them together. But I don't find any ...
0 votes
1 answer
60 views

I switched to the zabbly kernel for Ubuntu. Does it make sense to disable generic Ubuntu kernel updates?

I have been using the Zabbly kernel for Ubuntu 22.04.4 LTS for several months now and it works great but Ubuntu still wants to install its own, generic kernel and I don't want it. Question one: does ...
1 vote
0 answers
24 views

Docker Ubuntu: Unable to Stream from Ethernet Camera

Background: Hello all. I am attempting to solve a problem by placing complex systems within Docker containers. The platform hosting these containers has 6+ ethernet ports on NIC cards which are used ...
5 votes
3 answers
29k views

WSL-Docker: curl: (60) unable to get local issuer certificate

After a PC reconfiguration I am unable to use Docker properly, since some curl commands are rejected due to SSL/TLS issues. In just one example curl -vfsSL https://apt.releases.hashicorp.com/gpg ...
0 votes
0 answers
44 views

Failed Kasm Workspace installation on Ubuntu Server 23.10 LTS Raspberry Pi 4

I was trying to install Kasm Workspace on Ubuntu Server 23.10 LTS and I received this error: Setting Seed file as /opt/kasm/1.10.0/conf/database/seed_data/default_properties.yaml yaml: unmarshal ...
4 votes
3 answers
478 views

ipv6 multiple addresses and firewall on remote machine

I have an ubuntu server (serverA) which has a couple of IPv6 addresses. One of these is based on it's MAC address, and is known to the network, the other one I presume ubuntu created as a 'private' ...
1 vote
2 answers
5k views

Nginx not working with domain/url that points to server IP

The configuration I have set (below) works for localhost but not for my domain. The goal is to access port 3000 externally with basic auth so only I can access it. When I go to localhost, it is ...
-1 votes
0 answers
47 views

How to install Debian 12 on OCI Bare Metal Instance?

I want to install Debian 12 on my OCI Bare Metal Instance. I succeeded in VM, but it didn't work on BM Instance. I tried OCI Custom Images, Netboot.xyz. The BM Instance couldn't boot with OCI Custom ...
1 vote
1 answer
41 views

Zpool scrub won't resume after reboot

Linux Mint 21.3 Linux version 6.5.0-26-generic zfs-2.2.3-0ofthesun1 zfs-kmod-2.2.0-0ubuntu1~23.10.2 I've set up the zpool just fine, put some data on it and started a scrub. While this was in ...
0 votes
0 answers
32 views

How to safely fix and migrate pip3 packages installed and run using sudo/root/local users to a safe pip3 virtual environment (venv)?

I am running an Ubuntu 22.04 Lemp Server, and I'm not sure I fully understand pip3 and how it works. When installing certain python3-pip packages, some of them required being installed and run as root ...
1 vote
1 answer
6k views

pam_authenticate() failed: Authentication failure (/etc/pam.d/imap missing?)

I followed a link from another site that had an identical question posted as solved on this site, but the link resulted in a 404. I found the other links to pam failure, and I tried changing dovecot....
1 vote
1 answer
1k views

mysqld[1108] [Warning] Aborted connection 7466 to db: 'unconnected' user: 'unauthenticated' host: '127.0.0.1'

I am running Ubuntu Server 20.04. It is a LEMP server running Mariadb. When I run the command sudo service mariadb status I get the following warnings: Jul 28 00:18:59 mail.example.com mysqld[1108]: ...
1 vote
3 answers
11k views

How do I make my default GW route permanently on Linux Ubuntu?

I have 2 EC2 instances that run Ubuntu (VM1: 172.0.1.11 and VM2: 172.2.1.12). I want to make a default Gateway to my Routers R1which its addresses are the following respectively 172.0.1.8and 172.2.1....
0 votes
0 answers
18 views

Unable to Boot when restore OS from Linode to Digital Ocean

I have done a process in creating images using fsarchiver. Here is the point : Doing the OS backup in Linode Restore in new VPS instance of Linode working without any issue Restore in Digital Ocean ...
2 votes
3 answers
4k views

port forwarding with rules on ubuntu 18.04

I'm having a VM where port 80 is consumed by apache tomcat (host.nvoids.com). and I'm having apache2 php running at port 8020 which is a wordpress blog (host.nvoids.com:8020) I want when somebody ...

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