Just another IT blog

WSL

WSL fix using random private subnets 12 Jul 2021

Windows

WSL fix using random private subnets 12 Jul 2021

acl

Ansible recursive ACLs: workaround for fast apply 27 Apr 2016

android

Removing all unnecessary bloatware from Xiaomi MIUI 11/12 (Android 9/10) without root 25 Feb 2020

ansible

Using Ansible with bastion or jump host with variables 30 Oct 2020
APT repository signing key id for ansible 12 Feb 2020
Jinja 2 delete an item from dictionary inside a template 07 Oct 2019
Ansible snippet to update Elasticsearch cluster settings 19 Aug 2019
Encrypted local PKI CA for SSL/TLS keys and certificates with ansible vault 27 Dec 2018
VSCode: open ansible files with right syntax 27 Sep 2018
Using Ansible dynamic AWS EC2 inventory with encrypted credentials in vault 31 Jan 2018
Using Ansible with bastion host 29 Jan 2018
Ansible: multi-line shell script inside playbook 01 Jan 2018
Ansible: properly copy local files within the target host 07 Jun 2017
Ansible: check before commit that all *.vault files are encrypted 08 Apr 2017
Ansible running multiple handlers subtelty 15 Jan 2017
Ansible: human readable git diff for vault encrypted files 29 Nov 2016
Ansible recursive ACLs: workaround for fast apply 27 Apr 2016
Ansible: print role name inside template 08 Apr 2016

ansible-vault

Encrypted local PKI CA for SSL/TLS keys and certificates with ansible vault 27 Dec 2018
Using Ansible dynamic AWS EC2 inventory with encrypted credentials in vault 31 Jan 2018
Ansible: check before commit that all *.vault files are encrypted 08 Apr 2017

apt

APT repository signing key id for ansible 12 Feb 2020

audit

Building McAfee mysql audit plugin for Percona XtraDB Cluster 5.5 on Ubuntu 14.04.Trusty 03 Aug 2016

autologin

Console autologin for Ubuntu with systemd(15.04 and higher) 27 Dec 2017

aws

AWS SES and WorkMail for the same domain in different regions 03 Sep 2018
Using Ansible dynamic AWS EC2 inventory with encrypted credentials in vault 31 Jan 2018

bash

Simple bash debugger using trap DEBUG 21 May 2022
Ansible: multi-line shell script inside playbook 01 Jan 2018
PCI DSS requirement for session idle timeout: implementation and bypass 20 Aug 2017
bash: manage background tasks and terminate them all on Ctrl+C 06 Apr 2016

bastion

Using Ansible with bastion or jump host with variables 30 Oct 2020
Using Ansible with bastion host 29 Jan 2018

chrony

Syncronize time by NTP before starting any services in Linux 23 Dec 2020

console

Console autologin for Ubuntu with systemd(15.04 and higher) 27 Dec 2017

cron

Make notify-send work from user cron file in ubuntu 08 Jul 2016

deploy

Smooth deploy of a loaded PHP web application with php-fpm and nginx, without downtime or errors 09 Apr 2020

desktop

Auto-resize screen in Virtualbox guest Linux system 31 Jan 2019
Add custom display resolution in LightDM 16 Aug 2017
Make notify-send work from user cron file in ubuntu 08 Jul 2016

easy-rsa

Encrypted local PKI CA for SSL/TLS keys and certificates with ansible vault 27 Dec 2018

ec2

Using Ansible dynamic AWS EC2 inventory with encrypted credentials in vault 31 Jan 2018

elasticsearch

Ansible snippet to update Elasticsearch cluster settings 19 Aug 2019

expect

Auto-mount sshfs protected by password with tcl expect 05 Nov 2019

git

Ansible: check before commit that all *.vault files are encrypted 08 Apr 2017
Ansible: human readable git diff for vault encrypted files 29 Nov 2016

gpg

APT repository signing key id for ansible 12 Feb 2020

grok

Parsing Naxsi messages in nginx error log with Logstash 18 Jun 2019
Logstash: parse mysql slow log 09 Jun 2017

grub

GRUB 2: password protection for all but default menu entries 21 Dec 2017

haproxy

Letsencrypt: auto generate bundle certificates for Haproxy 02 Dec 2020

ipset

Persistent ipset for Ubuntu/Debian compatible with ufw and iptables-persistent 27 Jul 2018

iptables

Persistent ipset for Ubuntu/Debian compatible with ufw and iptables-persistent 27 Jul 2018
Limit frequency of new connection attempts with iptables module recent 07 Jul 2018

iptables-persistent

Persistent ipset for Ubuntu/Debian compatible with ufw and iptables-persistent 27 Jul 2018

jekyll

Install jekyll and github-pages on Ubuntu 14.04 Trusty 07 Apr 2016

jinja

Jinja 2 delete an item from dictionary inside a template 07 Oct 2019

jinja2

Jinja 2 delete an item from dictionary inside a template 07 Oct 2019

letsencrypt

Letsencrypt: auto generate bundle certificates for Haproxy 02 Dec 2020

lightdm

Add custom display resolution in LightDM 16 Aug 2017

linux

GRUB 2: password protection for all but default menu entries 21 Dec 2017
Rsyslog configuration: forwarding log files with file names, handle multi-line messages, no messages lost on server downtime, failover server 07 Feb 2017
Fix network hanging for WiFi card Realtek RTL8723BE on Linux kernel 4.4 25 Jan 2017

logstash

Parsing Naxsi messages in nginx error log with Logstash 18 Jun 2019
Logstash: parse mysql slow log 09 Jun 2017

mikrotik

Mikrotik and OpenVPN 2.3 compatibility: error 'Bad LZO decompression header byte: 69' 11 May 2017

miui

Removing all unnecessary bloatware from Xiaomi MIUI 11/12 (Android 9/10) without root 25 Feb 2020

mount

Auto-mount sshfs protected by password with tcl expect 05 Nov 2019

multiline logs

Rsyslog configuration: forwarding log files with file names, handle multi-line messages, no messages lost on server downtime, failover server 07 Feb 2017

mysql

Logstash: parse mysql slow log 09 Jun 2017
Building McAfee mysql audit plugin for Percona XtraDB Cluster 5.5 on Ubuntu 14.04.Trusty 03 Aug 2016
Perona XtraDB Cluster 5.5 work over IPv6 29 Jun 2016

naxsi

Parsing Naxsi messages in nginx error log with Logstash 18 Jun 2019

nginx

Smooth deploy of a loaded PHP web application with php-fpm and nginx, without downtime or errors 09 Apr 2020
Parsing Naxsi messages in nginx error log with Logstash 18 Jun 2019

notify-send

Make notify-send work from user cron file in ubuntu 08 Jul 2016

ntp

Syncronize time by NTP before starting any services in Linux 23 Dec 2020

openssl

Change TLS/SSL version and cypher parameters for Linux service using openssl library 14 May 2021
Encrypted local PKI CA for SSL/TLS keys and certificates with ansible vault 27 Dec 2018

openvpn

Mikrotik and OpenVPN 2.3 compatibility: error 'Bad LZO decompression header byte: 69' 11 May 2017

pcidss

PCI DSS requirement for session idle timeout: implementation and bypass 20 Aug 2017

pexpect

Auto-mount sshfs protected by password with tcl expect 05 Nov 2019

php

Smooth deploy of a loaded PHP web application with php-fpm and nginx, without downtime or errors 09 Apr 2020
Fix 502 error on php-fpm service reload 25 Oct 2016
Change in PHP 7 that may break some of Ubuntu servers on update 16 Sep 2016

pki

Encrypted local PKI CA for SSL/TLS keys and certificates with ansible vault 27 Dec 2018

proxy

Setup a SOCKS5 proxy in a single command 16 Apr 2018

pxc

Building McAfee mysql audit plugin for Percona XtraDB Cluster 5.5 on Ubuntu 14.04.Trusty 03 Aug 2016
Perona XtraDB Cluster 5.5 work over IPv6 29 Jun 2016

pxe

Ubuntu based thin client made with your own hands 08 Mar 2018

redis

Redis replication: prevent split-brain (additional master) in case of network partition 10 Jun 2016

routeros

Mikrotik and OpenVPN 2.3 compatibility: error 'Bad LZO decompression header byte: 69' 11 May 2017

rsync

Ansible: properly copy local files within the target host 07 Jun 2017

rsyslog

Rsyslog configuration: forwarding log files with file names, handle multi-line messages, no messages lost on server downtime, failover server 07 Feb 2017

rtl8723be

Fix network hanging for WiFi card Realtek RTL8723BE on Linux kernel 4.4 25 Jan 2017

screen

Restore SSH Agent connection when attaching to existing tmux or screen session 07 Apr 2016

screen resolution

Auto-resize screen in Virtualbox guest Linux system 31 Jan 2019

ses

AWS SES and WorkMail for the same domain in different regions 03 Sep 2018

sftp

Auto-mount sshfs protected by password with tcl expect 05 Nov 2019

socks

Setup a SOCKS5 proxy in a single command 16 Apr 2018

ssh

Using Ansible with bastion or jump host with variables 30 Oct 2020
Auto-mount sshfs protected by password with tcl expect 05 Nov 2019
Using Ansible with bastion host 29 Jan 2018
Restore SSH Agent connection when attaching to existing tmux or screen session 07 Apr 2016

sshfs

Auto-mount sshfs protected by password with tcl expect 05 Nov 2019

ssl

Change TLS/SSL version and cypher parameters for Linux service using openssl library 14 May 2021
Letsencrypt: auto generate bundle certificates for Haproxy 02 Dec 2020

syslog

Rsyslog configuration: forwarding log files with file names, handle multi-line messages, no messages lost on server downtime, failover server 07 Feb 2017
Running syslog-ng as unprivileged user 12 Apr 2016

syslog-ng

Running syslog-ng as unprivileged user 12 Apr 2016

systemd

Change TLS/SSL version and cypher parameters for Linux service using openssl library 14 May 2021
Systemd broken network.online target workaround 23 Dec 2020
Syncronize time by NTP before starting any services in Linux 23 Dec 2020
Systemd service that is always restarted 30 Dec 2017
Console autologin for Ubuntu with systemd(15.04 and higher) 27 Dec 2017

thinclient

Ubuntu based thin client made with your own hands 08 Mar 2018

tls

Change TLS/SSL version and cypher parameters for Linux service using openssl library 14 May 2021
Letsencrypt: auto generate bundle certificates for Haproxy 02 Dec 2020

tmux

Restore SSH Agent connection when attaching to existing tmux or screen session 07 Apr 2016

ubuntu

Ubuntu based thin client made with your own hands 08 Mar 2018
Console autologin for Ubuntu with systemd(15.04 and higher) 27 Dec 2017
Add custom display resolution in LightDM 16 Aug 2017
Change in PHP 7 that may break some of Ubuntu servers on update 16 Sep 2016
Make notify-send work from user cron file in ubuntu 08 Jul 2016

ufw

Persistent ipset for Ubuntu/Debian compatible with ufw and iptables-persistent 27 Jul 2018

virtualbox

Auto-resize screen in Virtualbox guest Linux system 31 Jan 2019

vscode

VSCode: open ansible files with right syntax 27 Sep 2018

wifi

Fix network hanging for WiFi card Realtek RTL8723BE on Linux kernel 4.4 25 Jan 2017

workmail

AWS SES and WorkMail for the same domain in different regions 03 Sep 2018

xiaomi

Removing all unnecessary bloatware from Xiaomi MIUI 11/12 (Android 9/10) without root 25 Feb 2020

xrandr

Add custom display resolution in LightDM 16 Aug 2017

xt_recent

Limit frequency of new connection attempts with iptables module recent 07 Jul 2018

zabbix

Zabbix: aggregate check for text items workaround 14 Apr 2019
Zabbix: user parameter command non-zero exit code silently breaks triggers 18 Jul 2016
Zabbix: unawailable items and hosts caused by wrong default timeout settings 14 Jun 2016


Tags page was created thanks to this instruction by Pavel Dmytrenko.