Forum Mihai Moldovan

Service failed to start during MSI install. Fix:

Click Ignore to finish install.
Check port conflict:
netstat -ano | findstr :9182
Check service log: Event Viewer → Windows Logs → System, filter for windows_exporter
Verify config file syntax if using --config.file (YAML) or collector flags — bad ...

Overview:
This document describes the full process of configuring SSH access for a GitLab instance running inside a Docker container, behind an ISP router with dynamic IP, using Cloudflare DNS and a Cloudflare Tunnel for HTTPS.

Environment:

GitLab Docker Image | gitlab/gitlab-ce:18.10.0-ce.0 ...

Update and install usb-modeswitch:
apt update && sudo apt install usb-modeswitch -y

Create FIx service:
touch /etc/systemd/system/nic-fix.service

Add configuration:

[Unit]
Description=Fix Realtek USB NIC Mode
After=network.target

[Service]
Type=oneshot
# ExecStart=/usr/sbin/usb_modeswitch ...

PiHole and Unbound docker compose install and configuration:

Docker network inteface creation

docker network create -d macvlan \
--ipv6 \
--subnet=192.168.1.0/24 \
--gateway=192.168.1.1 \
--subnet=fd53:50:50::/64 \
--gateway=fd53:50:50::1 \
-o parent=eth0 \
lan_ipv6

docker-compose ...

Download image from https://www.freebsd.org/where/ website > SD Card > RPI (3/4)
Chose FreeBSD-14.3-RELEASE-arm64-aarch64-RPI.img.xz or latest Version.
Write the .img.xz to SD Card using Raspberry Pi Manager.
Install the SD Card in the Raspberry Pi.
Connect a keyboard and a monitor the the Raspberry ...

Admin password reset:

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grafana-cli admin reset-admin-password your-new-password

For installed gitlab omnibus

Edit file default.rb from the gitlab installation path ( example: /opt/gitlab/...... ):
vim /opt/gitlab/embedded/cookbooks/monitoring/recipes/default.rb

Add the following code in the file:

# Disable Grafana service.
runit_service 'grafana' do
action :disable
end ...

Hard reset to a older commit

Clone Repository branch dev:

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git clone --branch dev https://git.url/repo

Hard reset to a older commit:

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git reset --hard 0d13251515b04e69d589737b0fa6b4c40069f175

Force push changes from origin to remote branch dev:

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git push origin dev -f

For Ubuntu/Debian:

Install dependencies:
sudo apt install build-essential zlib1g-dev libssl-dev -y

Download the SSH package:
wget https://cloudflare.cdn.openbsd.org/pub/OpenBSD/OpenSSH/portable/openssh-9.8p1.tar.gz

Extract the package from archive:
tar xzvf openssh-9.8p1.tar.gz

Call ...

Custom Prompt (GLOBAL for all users):
The following configuration will apply to all users in the system.
If you have personalized Prompt for every user individually, the following configuration will override it.

Create and edit file custom_prompt.sh
vim /etc/profile.d/custom_prompt.sh

Add the ...

Starting a Rails console session:

Linux package (Omnibus):
sudo gitlab-rails console -e production

Docker:
docker exec -it <container-id> gitlab-rails console

Self-compiled (source):
sudo -u git -H bundle exec rails console -e production

Helm chart (Kubernetes):
# find the pod ...

Create a file with the following content:

#!/bin/bash -e
# Run this script without any arguments for a dry run
# Run the script with root and with exec arguments for removing old kernels and modules after checking
# the list printed in the dry run

uname -a
IN_USE=$(uname -a | awk '{ print $3 ...

This list will be upgraded with time.

Update all images:
docker images | grep -v IMAGE | awk '{print $1}' | xargs -L1 docker pull

Remove all images with no tags ( <none> ):
docker image ls | egrep none | awk '{print $3}' | xargs docker image rm

Show disk usage detailed
docker system df ...

Cannot change Home page URL from the admin page

Login into internal gitlab database
sudo -u gitlab-psql /opt/gitlab/embedded/bin/psql -h /var/opt/gitlab/postgresql -d gitlabhq_production

Check home_page_url:
select home_page_url from application_settings;

home_page_url ...

Press SHIFT + F10 to open the command prompt (cmd).
The command CD C:\windows\system32\oobe is executed in cmd.
Press the Enter key.
The command is executed in cmd: msoobe.
Press the Enter key.
A window opens with the creation of the username.
After creating the username, the operating ...

Cause: Most probably the USB stick was physically removed from the USB port without applying the unmount or eject function ( FROM THE WINDOWS OPERATING SYSTEM ).
This phenomenon can cause the stick's functionality to be ineffective on Linux-type operating systems as well. The actual error in the ...

Command

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[root @ centos ~]$ grep -H -R "Board index" /var/www/* | cut -d: -f1

Output

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/var/www/phpBB/language/en/common.php

Error
X Error: BadAccess (attempt to access private resource denied) 10
Extension: 130 (MIT-SHM)
Minor opcode: 1 (X_ShmAttach)
Resource id: 0x13d

Add QT_X11_NO_MITSHM=1 to /etc/environment file.
In most cases, the operating system requires a restart after modifying the /etc/environment file.

This tutorial shows replacing iRedMail's default SSL certificates with Let's Encrypt certificates.
Replacing iRedMail certificates:
A back-up is created for the old certificates (in case the Let`s Encrypt certificate creation operation fails):
[root @ CentOS ~]$ mv /etc/pki/tls/certs/iRedMail.crt ...

This error occurs after attempting a platform upgrade.
Solution:
We access the root folder where the NextCloud platform is installed. In our case /var/www/html/nextcloud/data
[root @ CentOS7]$ cd /var/www/html/nextcloud/data
[root @ CentOS7]$ ls -asl | egrep "updater-"
4 drwxr-x---. 4 apache ...

Search found 65 matches

Windows node exporter install error

GitLab SSH Access Configuration

USB NICs not recognized: Debian 13

Docker compose: PiHole and Unbound [arm64]

FreeBSD Install on RaspberryPi4

Grafana CLI

GitLab Grafana service force disabled

Git: Some useful cmds

Ubuntu / Debian: Update SSH from source

Configuration file for Bash shell environment

GitLab: Terminal CMDS

Ubuntu / Debian: Remove all old kernels script

Docker sysadmin

Gitlab change the default home page url

Windows could not complete the installation

Windows: USB Stick: Device Not Recognized / Unknown Device in Windows 7/8/10

Search in files containing a "key" word

Ampps: X Error: BadAccess

RHEL/CentOS: iRedMail SSL Certificates

NexCloud: [UPGRADE] Step 5 is currently in process. Please reload this page later.