Questions tagged [debian]

Debian is a popular and influential GNU/Linux distribution. Questions here should generally be about Debian Server.

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Jenkins refuses to start - unknown argument --ajp13Port=-1

My jenkins installation on Debian was upgraded (using apt) - and now jenkins refuses to start. I can see the following in the log: Exception in thread "main" java.lang....
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Systemd error: "Failed to get properties: Transport endpoint is not connected"

Background info first. The server that this occurs on has only been on for less than a year and includes an external SAS JBOD. This server was intended to take on the duty of an old web server, ...
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Prevent VPN client from network scanning on ocserv

I have a ocserv server for VPN on a debian11 server. One of my clients did a network scanning and service provider blocked my IP for terms of service violation. This is 2nd time that this happened and ...
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Can't configure VPN on tp-link router using PSK

I've bought a VPS server and configured stronswan VPN. I was able to configure VPN on my Windows laptop(usinf certificate provided by Strongswan Web UI) and my android smartphon(configuration is ...
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Mount smb remote storage on debian with local disk caching using FS-Cache for CIFS

I am trying to connect a smb remote storage to my debian server and use the available space on the local disk as a cache using FS-Cache for CIFS. I have already tried the following code but it doesn't ...
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Why is ceph is not detecting ssd device on a new node?

I have installed a ceph cluster (quincy) with already 2 nodes and 4 OSDs. Now I added a 3rd host running Debian (bullseye) to the cluster. The new host is deteced correctly and runs a mom. The problem ...
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Debian 11 (+OMV) not booting with attached HDD

I have experienced some Issues with my current NAS. I have used OpenMediaVault 5 for years, but yesterday I decided to upgrade to OMV 6. My NAS is equipped with 3 x 4TB RAID 5 and one 20TB seperate ...
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Trying to Install HP-HEALTH for Proliant DL585N G5 on Debian Bullseye

I'm building a small personal server room with some older servers and exploring running new tools like proxmox. One such machine is an HP ProLiant DL585 G5, Quad Opteron with 40GB DDR2 that I would ...
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Debian 11 : Can't add squashfs to /proc/filesystems

I'm trying to fix an issue with snap I'm having : root@puppeteer:~# snap install core error: system does not fully support snapd: cannot mount squashfs image using "squashfs": mount: /...
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How to correctly configure OpenDKIM with Postfix on Debian 11?

The desired settings are to create a multi domain mail server. This is my main domain example.com and this is my subdomain: mail.example.com Taking the rDNS as the following verifications: hostname -f ...
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Fail2ban make a custom fail regex filter for Nginx error log

I am new to regex. How do I write a Fail2Ban filter to match with these nxinx error log lines? 2022/11/30 00:46:19 [crit] 57811#57811: *8911 SSL_do_handshake() failed (SSL: error:141CF06C:SSL routines:...
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Exim and Logwatch Missing Return-Path

I have been trying to troubleshoot a weird issue I am having with logwatch and exim. I have logwatch setup so send via another exim smarthost. If I send a test message via GNU mail. It gets through ...
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Install postgres-client-13 on debian buster

I need to run pg_dump from a Node.js docker image (node:16-buster) to a postgres 13.6 docker image. The problem is that for Buster version the only package available for postgresql-client is 11 and I ...
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Deb package trigger loops

I'm having a recurrent issue with custom .deb packages and their triggers. We have made some "meta packets" for our deploys to force & check some configurations. The idea is to keep many ...
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How to configure IA_PD prefix length with dhclient?

My home internet connection is going through a router provided by my ISP. It gets a ::/56 ipv6 prefix assigned dynamically by my ISP every night. Behind that router I have a debian bullseye box for ...
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Internet only working on recovery mode

I am using Parrot OS, all this started when suddenly kalitorify stopped working properly until I could not have internet connection. I uninstalled kalitorify, anonsurf and tor.service, but it did not ...
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systemd start mariadb after mounting USB stick

I moved the datadir of mariadb to a USB-stick, subsequently mariadb won't start anymore at boot time, because the stick is mounted after mariadb was started. I tried to modify the start order by ...
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Client can connect to reverse proxy running Debian 10 (Apache/2.4.38) but not Debian 11 (Apache/2.4.54)

I have a website hosted behind 2 reverse proxies running Apache on Debian. The client is an automated script and it's not easy to know what config/software they're using. When both reverse proxies ...
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debian Linux QinQ (vlan stacking)

I am trying to create stacked VLAN interface on a debian 10 server. Here is what I have placed in the /etc/network/interfaces: iface enp34s0.300 inet manual address 0.0.0.0 netmask 0.0....
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Active directory to ldap synchronization

I have two LDAP servers. First is Active Directory and second is openLDAP. I need setup between these servers. Is here anybody, who know, how to do it? I tried to use this link for tutorial, but I ...
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is there a postfix relocation service?

since i am running out of disk space on my debian server, i bought a usb raid and mounted it in the system under "/raid". I now want to move the whole postfix email directory "/var/...
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Jaguards database configured incorrectly

After following the steps given in the README of the open source tool provided by Jaguards, I always get the "Database configured incorrectly" warning icon, and can't manage to login with ...
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Ufw not showing open port

I'm new to linux and I use ufw to open / close ports on my Debian 11 VPS. If I use ufw stauts verbose I get the following list of open ports: To Action From -- ...
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Openvpn comunity setup ldap

I have got installed openvpn server on my debian virtual machine. Evrything it's OK,but now I want conenct this server to the windows active directory. I not found any working manual for this task. ...
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ip6tables state does not allow http connection outside LAN

I have a Debian 11 machine acting as a router (machine A) for IPv6 with WAN (bond0) and LAN (bond1) interface and another Debian 11 machine (machine B) connected to its LAN interface. This setup works ...
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Setting up LAN gateway for school club network - "No subnet declaration for enp3s0"

I am a computing teacher, I am trying to setup a "sandbox" network with internet access for an after school computing club. I have an old PC (Debian 11 installation) with 2 ethernet ...
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XRDP sesman Port Not Active

So I originally posted this question about some issues I'm having with RDP sessions over XRDP on Debian 11: Configuration Issues with XRDP and Gnome on Debian 11 server After some further ...
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Cron not working after pam customization to check groups

I need help with a PAM configuration. I've a Debian 11.5 machine with kerberos connected to an MS AD server. I want to configure the machine in order to allow some AD user to login, filtering them by ...
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After upgrading Debian in my OVH PVE, I just can't access its SSH or WebManager

This PVE has 1 VM in it. After updating the PVE OS (Debian) it has been rebooted. Since then I can't access either its SSH or the webmanager, BUT I can SSH the VM in it!!! The only way to access the ...
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What time is used when I set crontab @daily?

What time is used by crontab when I use the option @daily? Where is this information stored on Debian/Gnome? And how can I change this time value?
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Syntax Iptables and routing UDP protocol

I have a debian routeur server with two interfaces, one on the net, and one on the DMZ. I want to route the UDP protocol to internet to DMZ. What about this rules? iptables -t mangle -A INPUT -i [...
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IPV6 addresses not working on debian 11 - oracle cloud

I have an instance in oracle cloud with debian 11 The network configuration for IPV6 is: iface enp0s3 inet6 static address xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx netmask 128 gateway fe80::1 dns-...
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Port forwarding UDP10000

Sorry for my poor english... here is my network: Network I try to setting up a jitsi meet server behind my two Firewalls and the reverse proxy, but i meet a problem. I can access to video and sound ...
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needrestart doesn't restart libvirtd.service

Running needrestart repeatedly gives me this line: Restarting services... systemctl restart libvirtd.service Restarting the service with systemctl does not solve this problem. Not even killing /usr/...
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Communication between two interfaces on same machine

How can I achieve communication between 2 clients connected to 2 interfaces. E.g. Client A connected to eth0 and Client B connected to wlan0? Both will get DHCP IP.
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Debian Server - clients can't ping between interfaces/subnets

I can't ping clients between interfaces/subnets e.g. pinging from Mac (10.42.0.82), which is connected to eth0 to the Android (10.42.1.150) which is connected to wlan0. Note: I can access internet ...
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Debian preseed - US language - DK keymap

I can't get the debian preseed.cfg to work (I am using debian 11.5) I am trying to setup the fully automated install with US language but Danish keyboard layout. This is where I am now - which ...
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Debian 11 network bridging issue

Was hoping someone might be able to help with a bridging issue on Debian 11... I can't get it to work and I've been tearing my hair out all day! The bridged interface will not get an IP via DHCP and ...
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Debian: Simple way to compress files wanted

I often need to compress archives in Linux. is there a simpler way instead of always building such complicated commands? tar zcvf /tmp/mybackup.tar.gz /home/important
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Scripted Password Change Does Not Survive Reboot Unless One Login Occurs - Debian 11

I am trying to automatically set the root password to random characters via bash script. The script is part of a Vagrant shell provisioner. If the script runs the password change only, I am able to ...
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GCP image import error: install_apt_packages failing

I was trying to import a debian-11 image (debian-11-genericcloud-amd64.raw) using gcloud compute images import command. However it was failing, and looking at the logs it seems that ...
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My server is attacking other servers

I've been reached by OVH multiple times regarding a dedicated server which I bought from them, and they're saying that the server is attacking other hosts on their network. The first time, the server ...
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pptp-linux- route route all traffic expect internet traffic

From pptp documentation, defaultroute and replacedefaultroute are used to route all traffic through PPP0 tunnel. with these options, route -n results: 0.0.0.0 0.0.0.0 0.0.0.0 U ...
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Python setup tools getting dependency error with deb package, how to fix that?

Below is the install_requires part of setup.py of setuptools. Created rpm using this command. When I ran the deb file on another ubuntu 20 machine, got below error. But don't know why it is ...
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Users and groups not found, but exist in their respective files

I just encountered a bizarre condition on a Debian system I was working on. Out of nowhere, a program complained that its rungroup could not be found. After a bit of digging around, it seems like my ...
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No access to nginx container in Docker via IPv6

I am struggling to have my Debian VM (5.10.0-15-amd64) accept incoming requests for a plain nginx webserver hosted on Docker. When binding the IPv6 address directly within the docker-compose.yaml file ...
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Debian server changing ip address

I had set up a Debian server with an ip address that was assigned to another device by accident. I forced the server to connect through /etc/network/interfaces but am still finding it switches to the ...
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Windows 10 Doesn't connect with Samba4 server

I'm facing a problem with my samba server. I had a Samba server but it was a very old configuration so I have reinstalled the OS (Debian 5.10.140-1) and the Samba (Samba version 4.13.13). But now all ...
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Nginx running site out of wrong folder

On my Debian 10 VPS I have a MediaWiki deployment that I'm hosting on wiki.myorg.com stored on the filesystem using a soft link to manage versions like this: /var/www/mediawiki/1.34.4 /var/www/...
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Proxmox Networking configuration with multiple VM

I have purchased a dedicated server from Hetzner and it comes with a single IP address. I installed Proxmox and now this IP is used to access the web portal. I got another IP address for a VM on this ...

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