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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14 views

Dovecot SENT Mail Incorrect Count & Size and Missing Majority of Messages in Mail App

Just discovered that my mail app(s) are not displaying all of my messages in my SENT box(S) and maybe other boxes. For example when using Mac Mail "Account Info" shows that one of the "...
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lighttpd security without htaccess

I have a webserver with limited resources and therefore I decided to use lighttpd as my webserver software. However, I notices now that it does not recognizes apache .htaccess files. Most of the ...
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Main server IP getting leaked

I'm hosting a game server in the country that doesn't have DDoS protection. So what I have done is I have kept 100 load balancers in front of main server just to hide it. So players get connected ...
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Someone mining xmr on my vps [duplicate]

i noticed one cpu core using 100% resources so running htop shows, xmrig is running which i never installed. and i can see it is running from path /tmp/xmrig-... and i am running a wordpress site here ...
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SSL error from AWS server in us-west-1 to eu-west-1

Server's in us-west-1 region while tryin to connect https://elasticloadbalancing.eu-west-1.amazonaws.com/ in eu-west-1 region curl: (35) OpenSSL SSL_connect: SSL_ERROR_SYSCALL. This is happening with ...
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NGINX Is redirecting to localhost:3000

I'm using ruby on rails in a docker container running my website https://redrebelgames.com on port 3000. I'm trying to setup NGINX to redirect http:// traffic to https:// and redirect port 80 to port ...
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How to forward all incoming traffic to server A to server B and B returns it to A?

Suppose I have two servers: A and B. On both I have installed WireGuard. On server A, wg0 is routed with IP 10.8.0.0/24 and on server B, wg0 is routed with IP 10.7.0.0/24. Let's say server A's ...
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23 views

Identifying specific devices when using sensors in ubuntu

I am running the sensors command in Ubuntu 20.04 to try and get a temperature reading for my NVME SSD drives. However, although I can see the drives I am not sure which one is which: nvme-pci-2300 ...
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Cannot connect MacOS to StrongSwan VPN server installed on ubuntu

I have an issue connecting to IKEv2 VPN running on an Ubuntu VM on GCP. I am trying to connect with MacOS and Windows. I followed this tutorial to install the VPN on an Ubuntu VM. I need a VPN so that ...
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How to install `aide` without `aide-common` in debian?

Per this post, Newer versions of Ubuntu (including 14.04) come with two packages for AIDE: aide, with the aide command and manual page, and little else aide-common, with a wrapper around that ...
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Set display settings for another user in ubuntu [migrated]

I am using ubuntu 20.10 on a laptop and I have the close lid setting to ignore so I can close it and it still works on my external monitor. I have added a new user, but when I log in as the new user,...
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Apache2 - Only home url is found

I have created a laravel 8 application and installed apache2. My configuration files look like the following: 000-default.conf <VirtualHost *:80> # The ServerName directive sets the request ...
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Allow to kill mounhelper to all users

I have some machines with kubuntu 20lts, everyday when the machine start and the user's login, smb4k mount shares. But sometimes some shadows didn't mount because mountheper hungs. I need to allow all ...
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23 views

MDADM Raid 5 stuck on “Check Status 98% Complete”

I have an ubuntu server running that works like a NVR and stores recordings from a IP Camera over the network. It worked fine for a little over a month, then today when I went to check on it, it hadn'...
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1answer
44 views

Cannot apt-get update from inside my docker container if connected to bridge network

I am trying to understand, why I am unable to run apt-get update from within my docker containers, either debian:latest or ubuntu:latest. I am able to ping 8.8.8.8 or other address from within the ...
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25 views

avahi stops working in multi-user.target

I have another machine on my network running avahi-daemon with the default configuration and it's been working fine since the first boot. On a newer machine, avahi-daemon works only if i set systemctl ...
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Ubuntu does not boot without -cpu host, but boots fine with it

qemu-6.0.0 I'm running some experiments with QEMU/KVM and faced some strange behavior. My Ubuntu 20.04 system installed on a VM does not boot if it is used as follows: $ sudo qemu-system-x86_64 -...
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451 4.3.0 Temporary lookup failure - iRedMail - Ubuntu Server

I'm new to this area and I configured an ubuntu server with iRedMail. It receives from gmail.com but when trying to send emails using PHPMailer (SMTP) I get the following error. Tried to figure out ...
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Linux partition sizes for a locally-deployed (via docker) django web application with postgresql database

I plan to deploy in an ubuntu server, via docker, a django web application with postgresql database in a local machine within a local network. I believe that docker volumes live in the /var/lib/docker/...
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grub rescue on Ubuntu 18.04 with btrfs partition

I have a small server (HP ProLiant MicroServer Gen8) running Ubuntu 18.04 64 bit with the latest HWE generic kernel (5.4.0.74.83~18.04.67); it has two SATA drives, GPT partitioned but booting in ...
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file ownership and permissions issue with phpBB on Ubuntu 20.04 VPS

I am porting a phpBB site from a shared server to a VPS, running Ubuntu 20.04. I have configured apache2 for virtual domains, since I have more than one. Here's where the boards are: /var/www/...
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1answer
85 views

Got Blacklisted By DNSBL Or Gmail

I’m trying to build a mail server, but when I tried to check the if TCP Port 25 (outbound) is blocked I got the following root@mail:~# telnet smtp.gmail.com 25 Trying 173.194.76.109... Connected to ...
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running ./bin/gbuild ../learncoin/contrib/gitian-descriptors/deps-win32.yml causes a faketime error [closed]

The error in cd gitian-builder/var/build.log shows: + make -j2 library_build ERROR: ld.so: object '/usr/lib/faketime/libfaketime.so.1' from LD_PRELOAD cannot be preloaded (cannot open shared object ...
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Apache and letsencrypt ssl | need assistance from cloudflare gurus or experts in ssl

hope you are all staying well and safe. So just to explain my setup which I have always proffered do which worked for me, until now.. I have: Ubuntu server running apache2 for websites Letsencrypt ...
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phpMyAdmin doesnt show up the login page on UBUNTU LINUX [closed]

it shows some like this, help ! I have tried uninstalling and re installing phpmyadmin. but the login page doesnt show up
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50 views

Linux doesn't boot when HP HBA controller is connected

I have an HP H240 Smart HBA. On Windows 10, it works without a problem, but any Linux I tested refuses to boot with a connected controller. Platform: AMD B450 (AM4, various processors) List of tested ...
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1answer
25 views

Cannot install boost-win32.yml as updating apt-get repository fails [closed]

i keep changing sources.list so that it will work but whenever i try to install it i cant get it to find the correct dists it spts out this Ign http://10.0.3.2 precise-security InRelease Ign http://10....
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1answer
36 views

Allow my users to remove root-owned directories within their HOME

My users are on Ubuntu running Docker and mounting directories in their sessions. The problem is that any non-existing directory or file mounted with Docker is owned by root. I would like to allow my ...
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1answer
18 views

Designate installation on OpenStack failed

While trying to install designate on OpenStack Victoria on Ubuntu 20.04 using this guide https://docs.openstack.org/designate/victoria/install/install-ubuntu.html I'm getting this error Updating Pools ...
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1answer
126 views

Where has precise gone from https://archive.Ubuntu.com/Ubuntu/dists

I've been trying to download precise for my gitian VM for compiling my crypto for windows. I have successfully done it multiple time in the past and even again the other week, the problem is when I ...
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At what point of booting does resolv.conf.d/base get executed and added to resolv.conf?

Ubuntu 18 server. I've got /etc/resolv.conf.d/base set up to add a few ip addresses to /etc/resolv.conf. Some of these are required for mounting very specific mount points, which need to resolve ...
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How does re-installing an operating system on a primary drive impact data on mounted filesystems? [migrated]

I have a machine with 3 separate SSD drives: sda - Holds the operating system itself (Ubuntu) sdb - Personal Data sdc - Personal Data sdb and sdbc are mounted drives. Say I planned on wiping the OS ...
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Clients who block all outgoing udp connections having problems connecting to turnserver

We recently had a problem with our turnserver (coturn), some clients who use firewalls to block all outgoing udp connections have problems connecting to it, as far as i know, when udp connection doesn'...
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22 views

Postfix relay emails with authenticated FROM address quickly and delay unauthenticated ones

I have setup a mailing server using iRedMail, and a web server with LAMP stack and postfix to relay emails via the mailing server + WP installation. Everything is setup correctly and working just fine....
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1answer
38 views

sftp server throws Permission denied (publickey)

I'm setting up WordPress site on Apache server with SFTP enabled. After configuring all the necessary in /etc/vsftpd.conf I generated ssh keys with ssh-keygen -t rsa which produced private and public ...
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23 views

Problems with sysctl settings somaxconn

I'm trying to change the somaxconn settings, but for some reason they are not there. ***@***:~# cat /etc/debian_version bullseye/sid ***@***:~# uname -a Linux *** 5.4.78-2-pve #1 SMP PVE 5.4.78-2 (...
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37 views

Unable to connect to ec2 instance after changing my network configuration

My MongoDB database was hacked and I lost all my data but I had backups so it was not a problem, but once I was trying to recover it and make it safe I found out that binding only the necessary IP ...
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25 views

How can a .qcow2 snapshot of a virtual machine contain changes that occurred after the backup was taken?

This all takes place on a Ubuntu host. I'm currently troubleshooting a Jenkins virtual machine where we attempted to restore from a .qcow2 file. On 5/27, we stopped the VM, copied the .qcow2 file to a ...
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33 views

Single-disk array full: how to add a spare disk without losing data?

So I rent this server from Hetzner and it was labeled as 2x512gb nvme ssd. Indeed, the server contains two 512 gb nvme ssd but (my fault) I noticed only later that they were in some sort of software ...
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1answer
11 views

nginx autostarted after shutdown with systemctl

I'm running Linux Mint 19.2 Tina, which should be equivalent to Ubuntu 18.04. When I issue the command sudo systemctl stop nginx.service then systemctl start nginx.service I frequently get the error ...
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7 views

Apache has wrong url for assets

I'm using Turnkey Linux to try Avideo software. I have installed their OVA on a VirtualBox instance. During the init, we were asked a domain or IP for the AVideo service, i put on randomly but after ...
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59 views

Second interface not redirecting traffic

I am trying to setup a redirector to nat https traffic destined to (eth0)172.31.14.66 -> 1.1.1.1 and http traffic destined to (eth1)172.31.14.48 -> 2.2.2.2. Here are my iptables rules: iptables -...
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49 views

Unexpected and frequently Apache server shutdowns on Ubuntu 18.04 server

I'm having difficult times trying out to figure which are the problems Apache2 is having for it to die "randomly". I get noticed with some insults lol and have to restart it manually Ubuntu ...
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1answer
27 views

Sort df Output by Mount Point

I need to get the output of df -h sorted alphabetically by its mount point in the Mounted on column. However, df -h currently outputs similar to this: $ df -h Filesystem Size Used Avail Use% ...
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28 views

nGinx: “listen” directive is not allowed

Solution: Re-install NGINX and all it's config files. So I am getting this error: "listen" directive is not allowed. Path that it's erroring at is /etc/nginx/sites-available/default Here is ...
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1answer
31 views

Download with Wget only if new version

Good morning, I have a custom software that updates with a custom script.sh. Part of the file goes something like this: if [[ $software == A ]] then echo "downloading package..." ...
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1answer
15 views

Create RAID1 with luks without erase disks

I need to create a RAID1 arrange with an existing phisical disk. I buyed another hdd with same size and I want to create a RAID1 arrange without erasing the first one. My disk have luks encryption, I ...
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14 views

How to open port in client side in windows using my own openvpn server on linux?

I had been setup my own openvpn server in my raspberrypi and i connect on it using my openvpn client software in windows and i success to access the internet and when i check my ip i see the my ...
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2answers
52 views

pip not working on ubuntu 18, how to fix that?

ubuntu@ip-172-31-18-233:my_folder$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic I installed pip ...
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59 views

Running mysqld with root privilege

As we know running mysql with root privilege is not recommended which leads to privilege escalation using UDF's. I'm trying to setup a machine to demonstrate this and I wanted to run mysqld as root ...

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