Questions tagged [debian]

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

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Debian installation - how to correctly partition the disk?

My system: most recent Debian 11 image vServer running at my hosting provider virtualized via Xen normal HDD, no SSD; no lvm or raid used Somehow I managed to install Debian 11 with misaligned ...
archygriswald's user avatar
1 vote
0 answers
650 views

A process just won't die

For context: I have been playing with stable diffusion on my home server lately, but because my GPU is pretty old, the process often crashes and hangs when I try to go too far. Usually, I'd just kill ...
Julien Ripet's user avatar
1 vote
1 answer
83 views

My debian server have a dynamic ip address. Have one program like a vpn to give [closed]

I have a problem with a debian server. I need put a website to work, but my desktop doesn't have a Static IP, only a dynamic IP. The internet provider creat a lot of dificulties to upgrade my internet ...
Eletroinformática Brasil's user avatar
1 vote
1 answer
951 views

Unable to access port 8000 on my Debian server

I have a Debian server running fusionPBX, I installed it using this official script. It uses nginx to host the application, I tried adding another server (Django) in the config file of nginx to ...
Vaibhav Vishwakarma's user avatar
2 votes
1 answer
2k views

Why is mirroring debian-security a bad idea?

I'm setting up a debian (apt) mirror for internal networking (approximately 250 devices, including containers and vms). I'm using debmirror with rsync to mirror relevant packages. This drastically ...
cegfault's user avatar
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Large Docker images get stuck towards the end of downloading

Whenever I pull medium-to-large Docker images onto my server, they download almost all the way, but then they get stuck for multiple minutes before eventually finishing. I've looked in the Docker ...
Southpaw1496's user avatar
1 vote
0 answers
119 views

debian apache server slow & not responding - cpu low

i have a debian server with apache and mysql installed there. i have more visitors from 8pm to 22 pm and apache server to slow and lot of times page cant open on this period. error: This site can’t ...
wuqn yqow's user avatar
0 votes
0 answers
356 views

Apache halts with error: Invalid argument: AH00146: couldn't release the accept mutex

My webserver running Debian Bullseye has been running for years without any problems. Everything is up to date. The apache version is 2.4.54. Yesterday I noticed none of my websites were up so I ...
Zippy1970's user avatar
  • 269
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1 answer
2k views

iperf3 test bandwidth : TCP much slower than UDP

I'm trying to find out why one of my servers, used for fileserving, is sending files at a very slow rate, around 7 Mbits/sec, through nginx. I've been using iperf3 to test transfer rate between ...
Baptiste Placé's user avatar
0 votes
1 answer
705 views

How to set up OpenVPN server on Debian to route VPN traffic to the Internet

I am setting up an OpenVPN server on Debian. I have the server configured, and clients can connect - they are assigned IP addresses in the 10.11.22.0/24 range. I have the following in my server.conf ...
Nikki Locke's user avatar
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1k views

debian 11 + mariadb remote connections

I'm having trouble getting mariadb to accept remote connections on Debian 11 on a fresh installation. I've changed bind address to bind-address: 0.0.0.0. From the same server, I can telnet into port ...
Aaron A's user avatar
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121 views

Connecting postfix to mysql with ssl

I've been trying to get the correct recipe of settings to allow postfix to connect to mysql where ssl is required. So far I have the following config that is not working: user = mysqluser password = ...
Aaron A's user avatar
  • 249
1 vote
2 answers
639 views

Logrotate is not working in /tmp

I'm facing a strange problem with logrotate on my Debian 10 server. All in one, logrotate (v3.20.1) is working and rotating fine... except for some files in /tmp that I want to "skrink" ...
sbocquet's user avatar
0 votes
1 answer
78 views

Debian x64 limited to 4GB Memory- why?

I have a virtual machine (running on a QNAP NAS) which is configured for 8GB of memory. But my Debian only uses 4GB of them. See outputs: root@backuppc:/# lshw | grep "*-memory" -A 40 *-...
Christian's user avatar
3 votes
2 answers
1k views

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....
Aleks G's user avatar
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3k views

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, ...
Chris Woelkers's user avatar
0 votes
1 answer
389 views

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 ...
AminMZ's user avatar
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0 votes
1 answer
478 views

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 ...
gstackoverflow's user avatar
0 votes
1 answer
446 views

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 ...
dami3n's user avatar
  • 1
0 votes
1 answer
1k views

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 ...
Ralph's user avatar
  • 101
2 votes
1 answer
425 views

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 ...
Marcelo Andrade's user avatar
0 votes
1 answer
1k views

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: /...
hendr1x's user avatar
  • 101
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0 answers
976 views

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 ...
J. Mick's user avatar
  • 101
1 vote
0 answers
137 views

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 ...
Ralequi's user avatar
  • 140
1 vote
0 answers
328 views

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 ...
t11n's user avatar
  • 11
0 votes
1 answer
108 views

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 ...
Thomas P's user avatar
0 votes
0 answers
676 views

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....
Matthieu's user avatar
0 votes
1 answer
183 views

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 ...
Dave's user avatar
  • 25
0 votes
0 answers
36 views

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/...
Max Muster's user avatar
1 vote
1 answer
71 views

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 ...
Marc's user avatar
  • 21
1 vote
1 answer
66 views

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 ...
Darwick's user avatar
  • 121
0 votes
1 answer
317 views

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 ...
ICT Teacher's user avatar
1 vote
0 answers
724 views

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 ...
Lorenzo Sorace's user avatar
0 votes
1 answer
203 views

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?
Module_art's user avatar
0 votes
1 answer
60 views

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 [...
ArnOCP's user avatar
  • 11
0 votes
0 answers
1k views

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-...
Andrés Alvarez's user avatar
0 votes
1 answer
865 views

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.
sbx's user avatar
  • 13
1 vote
1 answer
1k views

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 ...
sbx's user avatar
  • 13
0 votes
1 answer
407 views

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 ...
Anders's user avatar
  • 142
0 votes
2 answers
3k views

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 ...
miroslav22's user avatar
0 votes
1 answer
84 views

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
Gill-Bates's user avatar
1 vote
1 answer
41 views

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 ...
Utkonos's user avatar
  • 426
-1 votes
1 answer
184 views

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 ...
HDR's user avatar
  • 1
0 votes
1 answer
443 views

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 ...
InterLinked's user avatar
0 votes
1 answer
1k views

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 ...
Michael's user avatar
0 votes
1 answer
352 views

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 ...
Amar172's user avatar
  • 11
0 votes
1 answer
2k views

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 ...
Anderson Silvestre's user avatar
0 votes
0 answers
268 views

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 ...
I Moustafa's user avatar
0 votes
1 answer
125 views

SystemRescueCd and Linux KVM

I need to boot one KVM VM with SystemRescueCD. However, the keyboard doesn't work then... I tried adding USB keyboard in VM configuration, but that doesn't help. PS/2 keyboard in there cannot be ...
LetMeSOThat4U's user avatar
0 votes
1 answer
274 views

Debian 10, very slow disk i/o, related to software raid

Hey got a server here that's gotten very slow on disk i/o, mdstat mentions something about a check, but I can't find anything about that when googling for it. What is it doing here? root@tynix /home/...
Tyron's user avatar
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