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Linux

ElementaryOS: Resolution fix for 2560×1440

December 3, 2019April 19, 2026 Val0 comments

Edit /usr/share/X11/xorg.conf.d/10-monitor.conf and paste the following: And reboot system with sudo reboot Thanks!

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Linux Noteselementaryos fix linux notes resolution vmware

Apache 2.4.6 + mod_wsgi + Python 3.6 + Django 2.2.6 on CentOS 7

October 14, 2019April 19, 2026 Val1 comment

There are many how-to’s on installing Apache with mod_wsgi, python 3.x and Django, but nothing worked for me, looks like mod_wsgi libraries installed by default with yum use Python 2.x,…

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Linux

Nagios environment variables

September 5, 2019April 19, 2026 Val0 comments

As soon as Nagios is managed by systemd, you have to change the passing environment variables from /etc/sysconfig/nagios to systemd Edit the file Add Environment=”” or EnvironmentFile=”” to [service] section…

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Linuxnagios

Happy Independence Day!

July 4, 2019April 19, 2026 Val0 comments

Wishing everybody a wonderful time on this special day in American history. Happy Fourth of July! God bless America!

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Linux

Open-Xchange IMAP: STARTTLS failure

May 2, 2019April 19, 2026 Val0 comments

During some experiments with open-sources code, found an issue with STARTTLS on the latest open-xchange appsuite 7.10.1-Rev9 Something like this: Looks like empty vars for SSL protocol and SSL ciphersuites…

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Linux Experiementsimap starttls

Paperkey: How to backup your GnuPG keys on paper

August 13, 2018April 19, 2026 Val0 comments

To create a backup of your GPG Key, you may use one of the following commands paperkey –secret-key my-secret-key.gpg –output to-be-printed.txt Or using this if you have exported (not armored)…

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Linux Encryptionbackup encryption gpg paperkey

Using YubiKey with GPG

January 28, 2018April 19, 2026 Val0 comments

Using Yubikey with GPG encryption Let me try to show my experience in using Yubikey as a Smartcard for storing signing and GPG encryption keys. There are a lot of…

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Linux DevOps Encryptiondecryption encryption gpg keys yubikey

Happy Halloween!

October 31, 2017April 19, 2026 Val0 comments

Wishing Happy Halloween to everyone!

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Linux

Icinga2 Director: How to import a server IP from local file

October 27, 2017April 19, 2026 Val0 comments

Hey all, #shortstory Today I had a pretty interesting task with Icinga2 and Director. The issue was with accessibility to DNS server which was installed in AWS without any public…

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Linux Icingaicinga monitoring

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