VMware : Transfer failed: The OVF descriptor is not available

Encountering the following error while importing OVF template in vCenter? Transfer failed: The OVF descriptor is not available This is usually caused by file corruption. Either the source template is corrupted, or the corruption occurred in transit between the source and vCenter. Try first reimporting again, if failing, check md5sum signature if available, re-export the… Read More »

Linux : MySQL/MariaDB Invalid (old?) table or database name ‘lost+found’

Encountering the following error in your Linux syslog/message or mysql error log? mariadbd[16354]: 2023-09-08 22:36:13 2520 [ERROR] Invalid (old?) table or database name ‘lost+found’ mariadbd[16354]: message repeated 3 times: [ 2023-09-08 22:36:13 2520 [ERROR] Invalid (old?) table or database name ‘lost+found’] This is most likely because your MySQL/MariaDB database folder (eg: /var/lib/mysql) is within a… Read More »

Linux : cPanel – The service “mailman” appears to be down

Receiving the following alert/error from your cPanel server? The service “mailman” appears to be down. Try first to manually restart the service from WHM, or by SSH using the following command : /scripts/restartsrv_mailman You’ll most likely end up with the following error/output : [root@hostname root]# /scripts/restartsrv_mailman Waiting for “mailman” to start ……info [restartsrv_mailman] systemd failed… Read More »

JunOS : ERROR: Package signature validation failed. Aborting install.

The following error may occur during the JunOS software upgrade process : [Jul 28 15:11:32]: Checking pending install on fpc0 fpc0: Verify the signature of the new package verify-sig: cannot validate certs.pem certificate is not yet valid: /C=US/ST=CA/L=Sunnyvale/O=Juniper Networks/OU=Juniper CA/CN=PackageProductionSHA1RSACA/emailAddress=ca@juniper.net ERROR: Package signature validation failed. Aborting install. This is usually a sign that your Juniper… Read More »

Linux : CloudLinux Yum could not load PEM client certificate

The following error may occur when runnong “yum update” on a new installation of CloudLinux from official ISO : CloudLinux-8 – Gradual Rollout Slot 1 0.0 B/s | 0 B 00:00 Errors during downloading metadata for repository ‘cloudlinux-rollout-1’: – Curl error (58): Problem with the local SSL certificate for https://rollout.cloudlinux.com/slot-1/8/x86_64/repodata/repomd.xml [could not load PEM client… Read More »

Web : Unable to add group in NextCloud v27.0.0

With the latest version 27.0.0 of NextCloud at the time of writing this article, the group add feature from the admin WebUI is broken (adding a group and press the save button does nothing). This is a known bug and should be fixed in version 27.0.1 which should be pubished in the next week(s). In… Read More »

Windows : How to list and export installed software with PowerShell CLI

Use the following PowerShell command (run as admin) to list and export all installed software on Windows and export to a text file : Get-ItemProperty HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\* | Select-Object DisplayName, DisplayVersion, Publisher, InstallDate | Format-Table –AutoSize > C:\InstalledSoftware.txt This will save the output to C:\InstalledSoftware.txt

Linux : Move from FleetSSL to AutoSSL on cPanel

In the early ages of free automated SSL certificates, FleetSSL cPanel Plugin (earlier known as Let’s Encrypt for cPanel) was the standard. cPanel then announced in 2016 that the official plugin was now AutoSSL, which is provided by cPanel. The move from FleetSSL to AutoSSL is quite simple : 1. Uninstall FleetSSL Let’s Encrypt :… Read More »