Questions tagged [debian]
Debian is a popular and influential GNU/Linux distribution. Questions here should generally be about Debian Server.
1,896
questions with no upvoted or accepted answers
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answers
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Creating a fallback error page for nginx when root directory does not exist
I have set up an any-domain config on my nginx server - to reduce the amount of work needed when I open a new site/domain. This config allows me to simply create a folder in /usr/share/nginx/sites/ ...
6
votes
0
answers
1k
views
How to make RabbitMQ start and stop faster
On Debian 10, service rabbitmq-server start takes 10 seconds; service rabbitmq-server stop takes 5 seconds.
This is for a Docker development environment where load is extremely low and start/stop ...
- 2,626
6
votes
1
answer
1k
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Debian Buster: How to start ZFS after open-iscsi in systemd
I have Debian 10 (Buster) installed and have added ZFS from Backports. I have 4 iSCSI-LUNs that I use as disks for ZFS. Each LUN holds a separate zpool.
So far the ZFS setup works. But the system is ...
6
votes
0
answers
7k
views
Debian 10 Buster can't renew DHCP as client, when IPv6 is disabled
After I upgraded Debian 9 to 10 Buster server lost network connection after 24 hours since reboot, I think problem is it can't renew IP address from DHCP server.
In /var/lib/dhcp I see the file ...
- 63
6
votes
1
answer
504
views
Folder Showing up as a File when viewed via Samba on a NetApp
we want to change files on our NetApp file server, and on every change of these files - a Debian machine duplicates the files to two other shares.
Because of the duplication method we're using lsync, ...
- 59
5
votes
0
answers
6k
views
docker-compose `restart: always` randomly not working
I administer a few Debian servers with Docker CE installed and docker-compose orchestrating several services (roughly 20 containers per machine)..
Every single service is configured with restart: ...
- 295
5
votes
2
answers
4k
views
100% CPU usage reported, but no processes using the CPU
I am running Debian 10 (kernel 4.19.0-18-amd64) on bare metal and I have recently noticed strange CPU usage.
Screenshot of htop, sorted by CPU%
Screenshot of top, sorted by CPU%
As you can see, 100% ...
- 51
5
votes
0
answers
404
views
How to share a ZFS pool between Debian and FreeBSD?
I am having a setup of a dual boot PC running FreeBSD 12 and Debian 10. There is a three disk zraid in the system created by FreeBSD which I would like to use as a common storage pool for both ...
- 497
5
votes
1
answer
1k
views
ModSecurity on Apache (Debian Wheezy), Authentication logging
I am new to ModSecurity, it works great on the server, but I would like to control the way it logs things. For example as I am troubleshooting my website in order to whitelist or correct php coding ...
- 51
5
votes
0
answers
4k
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NAT64 configuration with tayga on Debian 6
I'm trying to implement NAT64 with tayga on my server and came to a point where I'm not sure how to proceed.
My server is connected via one IPv4 address and one /64 IPv6 address block to the internet....
5
votes
2
answers
3k
views
How to log the whole SMTP session including DATA with postfix?
I am running a Debian 8.5 with postifx 2.11.3-1 and i try to log the whole smtp session including DATA to mail.log.
it was possible to see a part of the data by increasing the verbosity by adding -...
- 1,535
4
votes
1
answer
865
views
How to route IPv6 to the external interface?
I have purchased a VPS from IONOS. While they provide an IPv6 range 2a00:xxxx:xxxx:67::/64, they don't route it to the VPS itself, which is quite odd.
I wonder how I can achieve that. I have only 254 ...
- 1,675
4
votes
0
answers
1k
views
unattended-upgrades conffile prompt
To enable unattended-upgrades for packages which can show dpkg config change menu, one has to configure apt and dpkg with these config options:
Dpkg::Options {
"--force-confdef";
"--...
- 50.7k
4
votes
0
answers
6k
views
ERROR 1006 (HY000): Can't create database 'webdata' (errno: 2 "No such file or directory")
On Debian 10, I'm logging into MariaDB with
sudo mysql -u root -p
Then trying to create a DB
create database webdata;
ERROR 1006 (HY000): Can't create database 'webdata' (errno: 2 "No such file ...
- 41
4
votes
0
answers
321
views
MDADM Raid10 event mismatch after restart
I made a raid10 with 8x8TB drives the file system on it is XFS. I never had any issue with it. The raid is configured as near2 and internal bitmap. The drives are connected to a LSI-9211-8i in HBA ...
- 41
4
votes
0
answers
3k
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Adminer not working - Configuration file is missing
I have a VM running Debian 9.7.0 64-bit off a Windows 10 host machine. This VM has the packages openssh-server, ufw, mysql-server, mysql-client, adminer, and their dependencies installed via apt.
...
- 141
4
votes
0
answers
2k
views
NFS ignores secondary groups
My NFS server seems to be ignoring secondary groups. I have fewer than 16 groups per user, but have --manage-gids on. The NFS share doesn't mount when this option is missing. Users and groups are ...
- 141
4
votes
0
answers
209
views
Single partition mounted to multiple directories with different files
I have a systemd mount for a single partition which results in three different directories being mounted.
The file /etc/systemd/system/var-lib-docker.mount
[Unit]
Description=Mount LSSD Volume at ...
- 141
4
votes
0
answers
1k
views
Is it possible to apt-pin two packages.sury.org repositories, which have no unique Label, Component, Origin, etc?
This has taken me two separate multi-hour sessions to fully comprehend exactly how the preferences.d system works in apt.
On my local dev machine, I have a lot of different apt sources .. :
/etc/...
- 565
4
votes
0
answers
2k
views
MemoryError when using gdb's Python extension on Jessie
In the past, I frequently used the possibility to attach gdb to a running Python process and use the py-* extensions for debugging. However, since Debian Jessie, this does not work anymore and throws ...
- 51
4
votes
1
answer
10k
views
Unbound refuses requests from localhost even though `access-control: 127.0.0.1 allow_snoop`
This is my unbound.conf
server:
interface: 0.0.0.0
access-control: 10.0.0.0/8 allow_snoop
access-control: 127.0.0.1 allow_snoop
access-control: 192.168.0.0/16 allow_snoop
...
Reading the ...
- 210
4
votes
0
answers
5k
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Postgresql 9.4 clusters not auto starting on Debian
I have Debian 8.2 x64 and Postgresql 9.4 (from repo). I've recreated default cluster in different location like this:
# service postgresql stop
# pg_dropcluster 9.4 main
# pg_createcluster -d /srv/...
- 186
4
votes
0
answers
2k
views
IOTOP on LXC -> Netlink error
unfortunately I can not use iotop on proxmox-lxc-container and debian 8 template.
This is the output:
Traceback (most recent call last):
File "/usr/sbin/iotop", line 17, in <module>
main()
...
- 913
4
votes
0
answers
3k
views
OpenVPN ERROR: could not insert 'tun': Unknown symbol in module, or unknown parameter (see dmesg)
I'm trying to configure OpenVPN on my Debian 7 VPN but I'm getting the following error ERROR: could not insert 'tun': Unknown symbol in module, or unknown parameter (see dmesg)
I tried the ...
- 141
4
votes
1
answer
2k
views
Supervisor cannot correctly stop uwsgi
Supervisor can start uwsgi but after stopping uwsgi, when i try to start it again I get this error:
2014-03-16 08:38:34,249 DEBG 'app' stderr output: ...
- 1,123
4
votes
0
answers
1k
views
mdadm error: found two disks with the number 0
Im running a server deep in the forest , and after a hard disco failure i got this error.
error: found two disks with the number 0.
It a server with 2, 1 TB disc in raid 1 with mdadm 0.9
SDA failed ...
- 181
4
votes
1
answer
184
views
Puppet removes packages while installing "lsscsi"
We wanted to install the "lsscsi" package on all our Linux Servers and build a manifest for it:
# pack_lsscsi.pp
class common::pack_lsscsi {
case $operatingsystem {
RedHat, ...
- 41
4
votes
1
answer
2k
views
Installing openssh-server on Debian 10 with libc6 issues
I'm trying to install openssh-server. However, I keep getting this error:
The following packages have unmet dependencies:
libc6 : Breaks: openssh-server (< 1:8.1p1-5) but 1:7.9p1-10+deb10u2 is to ...
- 41
4
votes
1
answer
2k
views
Easily spoof lsb_release output for different versions
I’m often rebuilding software packages (mostly Debian) for older versions (of both Debian and Ubuntu, including oldoldstable). Some of these packages use the lsb_release command to figure out the ...
- 749
3
votes
0
answers
664
views
Apparmor and libvirt - warnings and errors
I have a fresh Debian 12 installed and updated. Along with Cockpit and Cockpit virtual machines.
I am getting the following errors and warning when looking at the log section in Cockpit:
Failed to ...
- 31
3
votes
0
answers
687
views
Does Nginx aio work with linux?
We have a VOD service and we are using nginx as webserver.
Our system doesn't use nginx-vod-module instead it just has all the small m4s files for a dash stream.
I came across this article(Thread ...
- 131
3
votes
0
answers
834
views
LinuxPTP slave not using master and sync timeout tx announce timeout
And:
I'm using G8316 as swtich with ptp transparent enable and Mellanox 354 adapter.
Ports using LACP bonding and trunk.
First: Server A ptp4l -m -l 7 -i xxxx -i xxxx -S
I can capture ServerA ...
- 133
3
votes
0
answers
87
views
Limit resources of a group of users on Debian 10
I know how to set limits per user:
systemctl set-property user-1000.slice CPUQuota=5%
However, I don't know how to set the limit for a group of users. I want to limit the sum of the CPU usage of all ...
- 31
3
votes
3
answers
928
views
Unwanted DHCP setting on server
I'm configuring a new Debian 11 server running on a private network. It is determinedly taking a DHCP address in addition to the static IP I am manually configuring. I don't understand where it gets ...
- 31
3
votes
0
answers
211
views
SSH tunnel reconnecting after WAN change or server drop
I am fighting with autoSSH configuration.
My setup
VPS as a public contact point, clients will access the VPS IP to get to the server
My home server running the service. This machine has dualwan ...
- 31
3
votes
0
answers
416
views
Why su command takes to long in nested Debian LXD containers?
I observed that the command su takes too long (30 seconds) when it is executed in a LXD Debian container that is nested into an Ubuntu LXD container. This overhead does not occur Debian containers ...
- 263
3
votes
0
answers
626
views
Samba only sees first group of a user
I have a samba server on Debian Buster that was upgraded from Debian Stretch. This upgraded Samba from 4.5.16 to 4.9.5. Somewhere in this process, it seems that handling of groups changed. Users that ...
- 173
3
votes
0
answers
271
views
Track multiple directories with etckeeper
I'm trying to provide a solution to use etckeeper as a keeper of multiple locations (directories). I'm using Debian 8. With the default config etckeeper "watches" the /etc directory but I want to have ...
- 133
3
votes
0
answers
404
views
Proxmox Centralized Management
At my workplace, we use a lot of Proxmox servers, on various locations (some are on premise, some are hosted by hosting companies). As we are currently managing about 20 proxmox hypervisors, we would ...
- 31
3
votes
0
answers
421
views
Reconnecting secondary node in shared-nothing active-passive DRBD cluster after secondary reboot
I'm using DRBD (config below) and tried to test reliability of the setup.
I have rebooted secondary node (host1) and noticed it went into this state:
host1:
0:r0/0 WFConnection Secondary/Unknown ...
- 1,471
3
votes
0
answers
2k
views
Nginx - 400 Request Header Or Cookie Too Large (Angular + Symfony)
I have two projects on the same server:
a Symfony 3 API (api.example.com)
an Angular 5 webapp that uses the API mentionned above (www.example.com)
Both are on the same server, served with one Nginx ...
- 131
3
votes
0
answers
377
views
Matrix Synapse matrix-appservice-irc messages only travel from IRC to Matrix
My irc bridge has connected the rooms i wanted, except messages are only passed from irc to matrix! Also the matrix[m] users are not appearing in the irc chatroom.
Here are my configs:
$ cat config....
- 63
3
votes
1
answer
1k
views
Why does the 'nomatch' option of ipset not work in this case?
I am using ipset 6.23-2 on Debian Jessie. I created a hash:net set for and an iptables rule to drop all traffic for addresses in the set.
Chain INPUT (policy ACCEPT)
target prot opt source ...
- 31
3
votes
0
answers
246
views
Make puppet run without overwriting my gems in RVM installation
I have a puppet setup containing a puppet master and couple of nodes - this works as intended.
However - on the latest node I am working on I need to install rvm/ruby+nginx/passenger. This is done ...
- 31
3
votes
1
answer
2k
views
ip6tables blocking outgoing+incoming connections
i just changed to a server with ipv6 and therefore i changed my firewall script. Changing my iptables-script to ip6tables does not seem to work though. This is the ipv6 part which neither allows ...
- 33
3
votes
1
answer
1k
views
service --status-all freezes part way through displaying list
debian 8.0, logged in over ssh
service --status-all freezes part way through displaying list of services
it gets to ssh and then doesn't display anything else and doesn't finish, it doesn't matter ...
- 237
3
votes
0
answers
378
views
crm_mon -E does not run the external-agent on Debian Jessie
Setup
I'm currently having a working 2-nodes HA cluster using Pacemaker+Corosync. My nodes are running on Debian 8 (Jessie). Now I would be able to get notified when changes occur in the cluster (...
- 271
3
votes
0
answers
1k
views
Auto-Reboot on Kernel BUG (not tainted, “fixing recursive fault but reboot is needed”)
I'm running a sometimes highly loaded Debian 7 VM with the latest 3.2.x kernel on a XenServer 6.2 host.
Sometimes this VM runs into the following state:
Ping is okay, All Services unreachable (...
- 151
3
votes
2
answers
438
views
Issues getting systemd service to start (Jessie)
I've got a systemd service which I need to have run prior to networking having started and I'm struggling with it a little. According to this:
Running Services After the Network is up I need to use ...
- 141
3
votes
0
answers
249
views
Linux Malware Detection Monitoring: Clean files after hit
I'm using LMD ("Maldet") for scanning a web server with different projects. For this purpose I'm using the inotify-monitoring.
Well, the inotify-log shows, that the modified files are noticed, but I ...
- 913