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  • Jan 31, 2019

    Auto-resize screen in Virtualbox guest Linux system

  • Dec 27, 2018

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

  • Sep 27, 2018

    VSCode: open ansible files with right syntax

  • Sep 3, 2018

    AWS SES and WorkMail for the same domain in different regions

  • Jul 27, 2018

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

  • Jul 7, 2018

    Limit frequency of new connection attempts with iptables module recent

  • Apr 16, 2018

    Setup a SOCKS5 proxy in a single command

  • Mar 8, 2018

    Ubuntu based thin client made with your own hands

  • Jan 31, 2018

    Using Ansible dynamic AWS EC2 inventory with encrypted credentials in vault

  • Jan 29, 2018

    Using Ansible with bastion host

  • Jan 1, 2018

    Ansible: multi-line shell script inside playbook

  • Dec 30, 2017

    Systemd service that is always restarted

  • Dec 27, 2017

    Console autologin for Ubuntu with systemd(15.04 and higher)

  • Dec 21, 2017

    GRUB 2: password protection for all but default menu entries

  • Aug 20, 2017

    PCI DSS requirement for session idle timeout: implementation and bypass

  • Aug 16, 2017

    Add custom display resolution in LightDM

  • Jun 9, 2017

    Logstash: parse mysql slow log

  • Jun 7, 2017

    Ansible: properly copy local files within the target host

  • May 11, 2017

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

  • Apr 8, 2017

    Ansible: check before commit that all *.vault files are encrypted

  • Feb 7, 2017

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

  • Jan 25, 2017

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

  • Jan 15, 2017

    Ansible running multiple handlers subtelty

  • Nov 29, 2016

    Ansible: human readable git diff for vault encrypted files

  • Oct 25, 2016

    Fix 502 error on php-fpm service reload

  • Sep 16, 2016

    Change in PHP 7 that may break some of Ubuntu servers on update

  • Aug 3, 2016

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

  • Jul 18, 2016

    Zabbix: user parameter command non-zero exit code silently breaks triggers

  • Jul 8, 2016

    Make notify-send work from user cron file in ubuntu

  • Jun 29, 2016

    Perona XtraDB Cluster 5.5 work over IPv6

  • Jun 14, 2016

    Zabbix: unawailable items and hosts caused by wrong default timeout settings

  • Jun 10, 2016

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

  • Apr 27, 2016

    Ansible recursive ACLs: workaround for fast apply

  • Apr 12, 2016

    Running syslog-ng as unprivileged user

  • Apr 8, 2016

    Ansible: print role name inside template

  • Apr 7, 2016

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

  • Apr 7, 2016

    Install jekyll and github-pages on Ubuntu 14.04 Trusty

  • Apr 6, 2016

    bash: manage background tasks and terminate them all on Ctrl+C

  • selivan

Just another IT blog