Questions tagged [linux]
Linux is the generic term for a UNIX-like open source operating system based on the Linux kernel.
35,926
questions
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Can not see the new installed kernel during the boot screen
We have upgraded to RHEL7.6- 7.9 also the new kernel has been installed(kernel-3.10.0-1160.15.2.el7.x86_64) but we are unable to see the new kernel menu entry during the boot menu screen.
As I have ...
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Debugging Redis/Jedis performance issues
I have an application that currently has an in-memory cache and, of course, the performance is blazing fast. But due to some reasons (that are out of scope here) I want to start using Redis but the ...
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votes
1answer
25 views
How to resend bounced email messages using mutt
Background
An email relaying issue was resolved.
32 email messages to sponsors had bounced to root.
I copied /var/mail/root to /tmp/root.
I deleted irrelevant messages from /tmp/root (using mutt).
...
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9 views
Linux cifs share allow different user than mounted/masked uid to do cp -p
I have a specific linux-server that runs several batch jobs at night creating files and copying them to various locations on a NAS, previously mounted with NFS but as of lately with CIFS.
The reason ...
0
votes
1answer
23 views
Allow user to execute sudo commands without inserting password
I have a Debian-based system (most likely an Ubuntu 18.04 LTS) with a user, say user, that executes an application (as a service). The system is not exposed to the Internet with a public IP address.
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1answer
19 views
Nginx proxy_store can't write on a user directory tree
CentOS 7 server used for shared hosting. No chroot. 99% WordPress installs.
Every user gets a /home/someuser skeleton including ~/web where all web-accessible files reside. All dirs below and ...
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0answers
8 views
How to force cupsd printer server to use FQDN with Opportunistic TLS prompt?
Currently, when CUPSD asks to upgrade the connection to TLS, I get the prompt:
Upgrade Required You must access this page using the URL
https://192.168.0.7
How can I force this prompt to use the ...
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0answers
15 views
Move to a new server - redirect complete traffic (http + https)
I have a runninig server with multiple services on subdomains running on it (all using https), with nginx as reverse proxy.
In some days I will move everything 1:1 to another server (new IP, new ...
1
vote
1answer
64 views
nginx under high traffic: network goes down when log writes to disk?
An VPS with 2 vCPUs, with Ubuntu 20.04 and nginx.
Nothing changed regarding to loging: neither on nginx, rsyslogd, or journald.
I launch ab (apache-benchmark) from a nearby VPS, like this:
ab -k -c ...
2
votes
0answers
13 views
Modprobe error at boot
I'm using LMDE4 with LVM on LUKS and recently I've been getting these cryptic error messages at boot:
modprobe: module aes-i586 not found in modules.dep
Volume group "lvmlmde" not found
...
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0answers
6 views
virsh domifaddr and net-dhcp-leases show no results
running CentOS 8, virsh 4.5.0, and libvirt. when i run either virsh domifaddr <domain> or virsh net-dhcp-leases default, i get no results whatsoever:
Name MAC address Protocol ...
2
votes
2answers
60 views
Ansible management of frequently off machines
I'd like to use Ansible to manage configuration on about a dozen Linux workstations. The problem is that, being physical machines that people use, they're frequently off. So I need a solution for ...
1
vote
1answer
22 views
Cannot stop screen started with systemctl start
On ubuntu server 20.04
I created a service definition for a Minecraft server within a screen session like that
[Unit]
Description=Minecraft Server
After=network.target
[Service]
User=minecraft
Nice=...
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votes
0answers
8 views
Impact on Recovery Time Using A Single Perpetual Base Backup and WAL Archives
What would be the impact on recovery time when restoring a Postgres database from a backup where one base backup was taken at the start of the backup strategy and then only applying WAL archives from ...
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2answers
32 views
Can't access VNC port from local network
I've installed VNC on CentOS and enabled it on port 5901. I made sure that selinux, firewalld and iptables were disabled/stopped on the system for troubleshooting purposes. Now I can successfully ...
