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Unanswered Questions

4,159 questions with no upvoted or accepted answers
10 votes
1 answer
3k views

Is it possible to do multiseat the systemd way with one graphic card / two heads?

I would like to setup a multi-seat configuration using Ubuntu Xenial 16.04. After some researches, it seems the way to do now is by systemd through "loginctl" calls. (saw here for example). Before ...
7 votes
1 answer
1k views

Ubuntu server hang with ascii NUL characters in syslog and other files ( ^@^@^@… )

We are experiencing occasional hangs with ubuntu 16.04 LTS (kernel 4.4.0-34-generic) and we wonder if somebody has some clues how to get to bottom of this. The log looks like this: Aug 24 10:02:04 ...
7 votes
0 answers
1k views

How to re-compile iconv on Linux (Ubuntu 14.04 LTS) with pseudo-charset UTF8-MAC?

I was googling around for hours to find a solution for my problem and I couldn't get it to work: I have to rsync a file structure on an ext4 formatted drive to a hfs+ formatted drive. Folders and ...
7 votes
1 answer
4k views

postgres not starting after reboot on ubuntu

I'm not familiar with ubuntu (raring), so could someone help me please: I'm using postgresql 9.1 from apt. It installed the appropriate init script in /etc/init.d/postgresql. I can start the server ...
6 votes
2 answers
3k views

Apache2 stops after system graceful-restart

System's effected: Ubuntu 16.04, Ubuntu 18.04, not 14.04. Frequency: Approx. around 24 - 36 hours. [Wed May 08 03:44:25.964597 2019] [mpm_prefork:notice] [pid 7670] AH00171: Graceful restart ...
6 votes
0 answers
379 views

How can one php-fpm 5.6 site cause an outage across all sites?

I have a real head scratcher with one site on a server affecting others in separate php-fpm pools. I thought the idea was that php-fpm pools gave isolation to stop (reduce) this from happening. We ...
6 votes
2 answers
4k views

Creating a virtual network for KVM guests spanning multiple host machines

I have 5 physical machines running Ubuntu 14.04, all of them are together in a network. These all have static IP addresses. Each of these machines has 1 to 4 virtual machines via KVM/QEMU running ...
6 votes
1 answer
5k views

Turn off EPMD listening port (4369) in Ubuntu / RabbitMQ

I'm trying to secure an install of RabbitMQ, and am not sure how to secure the Erlang EPMD port. I only have one machine running anything, so I'd like to make it listen only on the loopback device. ...
6 votes
1 answer
3k views

docker network freezing randomly

Sometimes , all network's of my dedicate server is freezing (ssh also not working). it's randomly repeated. OS: Ubuntu 14.04.3 LTS On server installed docker containers, and i see in dmesg logs: [...
5 votes
0 answers
4k views

HyperV Type Clipboard Text does not work in Ubuntu 20.04 (or Linux in general)

I am using Hyper-V in Windows Server 2022. I installed Ubuntu Server 20.04 from ISO in Hyper-V. Now, all I want to do is use the "Clipboard > Type Clipboard Text" command in HyeprV ...
5 votes
0 answers
2k views

Ways to integrate incoming and outgoing mail webhook in Postfix

I am trying to build an application in PHP which will be able to create a Ticket whenever a new mail arrives on a specific account and whenever a reply is done for that email, the application will ...
5 votes
0 answers
9k views

ntp_gettime() returns code 5

I'm trying syncronize clock on ubuntu server with commands: $sudo apt-get install ntp $sudo service ntp stop $sudo ntpd -gq $sudo service ntp start But it anyway gives me: $sudo ntptime ...
5 votes
1 answer
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 ...
5 votes
1 answer
8k views

nginx - CORS configuration that allows files to be served to localhost?

Here is my current nginx configuration file: server { listen 80 default_server; listen [::]:80 default_server; root /var/www/html; # Add index.php to the list if you are using PHP index index.html ...
5 votes
1 answer
3k views

Proper way to override Mysql my.cnf on CentOS/RHEL?

Context: I'm porting an opensource server software (and writing associated documentation) from Debian/Ubuntu to CentOS/RHEL. For the software to run correctly, I need to add a dozen of specific ...

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