Author Archives: Kaven Gagnon

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About Kaven Gagnon

System & Network Architect

Linux : ownCloud 10.8.0 Debian 10 repository is not signed

If you attempted to upgrade from ownCloud 10.7.0 to 10.8.0 using the APT repository, you most likely encountered a signature error as followed : Get:11 https://download.owncloud.org/download/repositories/10.8.0/Debian_10 Release [964 B] Get:12 https://download.owncloud.org/download/repositories/10.8.0/Debian_10 Release.gpg [481 B] Ign:12 https://download.owncloud.org/download/repositories/10.8.0/Debian_10 Release.gpg Reading package lists… Done W: GPG error: https://download.owncloud.org/download/repositories/10.8.0/Debian_10 Release: The following signatures were invalid: DDA2C105C4B73A6649AD2BBD47AE7F72479BC94B E: The repository… Read More »

Linux : cPanel Exim service keep bouncing up/down

If you are receiving a lot of cPanel notification message stating that the Exim mail server service is flapping (going down and up repeatedly) as followed : The service “exim-26,465,587” appears to be down. The service “exim-26,465,587” is now operational. You are most likely victim of some sort of denial of service attack against your… Read More »

Windows : SQL Server installation wizard stuck at Service Account step

You probably installed SQL Server a few times and it went smoothly. However this time, you ended up with the following issue/symptoms at the installation: the server configuration wizard is stuck with the “Please Wait” and/or (not responding) message. This is often happening when custom domain users (for Service Accounts) are defined instead of local… Read More »

Storage : How to access the serial console on Dell PowerStore

Dell PowerStore does not feature a traditional console port. Instead, it has a “service port” which is IPMI based. Therefore, to access the console, you need to use Serial-over-Ethernet with IPMI Tool. 1. Get ipmitool from Dell Web site ; 2. Change your network adapter IP configuration to the following : ip 128.221.1.10 netmask 255.255.255.0… Read More »

JunOS : Autorecovery information needs to be saved

If your Juniper device indicate an alarm status (red light shown on the unit), you can run the following command to find out the details : show system alarm And the following output is shown: 1 alarms currently active Alarm time Class Description 2021-10-19 03:06:00 UTC Minor Autorecovery information needs to be saved This mean… Read More »

Linux : InRelease’ changed its ‘Version’ value from ‘10.1’ to ‘10.2’

You probably noticed a similar output after running “apt-get update” on your Debian Linux based system: N: Repository ‘http://deb.debian.org/debian buster InRelease ‘ changed its ‘Version’ value from ‘10.9’ to ‘10.11’ E: Repository ‘http://deb.debian.org/debian buster InRelease ‘ changed its ‘Suite’ value from ‘stable’ to ‘oldstable’ […] This means that the major and minor version you are… Read More »

VMware : How to remove invalid virtual machine from inventory

You may at some point end up with virtual machines marked with “Invalid” status in the vSphere Web client or vCenter. You will also notice that the contextual menu does not show up the usual options (mostly everything is greyed out) and more importantly, the “Unregister” or “Delete” options are unfortunately unavailable. Chill out, there… Read More »