Author Archives: krylon

Script to Automatically Rescan and Mount Software iSCSI Datastores on Startup for ESXi

There are several reasons you may want to have ESXi rescan for datastores at boot. For this example a FreeNAS guest VM was running an iSCSI target and sharing it back to the ESXi host which used it as a … Continue reading

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Enable BuddyPress Mentions and also Email Notifications in bbPress

BuddyPress @mentions were working perfectly within WordPress posts and comments however not in bbPress. This is one solution to get @mention user lookups and an email notification when used in a topic or thread reply.  However a notification is not … Continue reading

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How to Install Latest WordPress on Ubuntu Server 18.04

These are the minimum steps I needed to get WordPress running on Ubuntu Server 18.04. It is based on the below guide at the time of this writing: How to install WordPress   During the install and setup of Ubuntu … Continue reading

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Suddenly Can’t Connect to UniFi Controller on Windows Server

Specific setup was Windows Server 2012 R2 and UniFi Controller 5.12.35.   The issue was that suddenly neither internal connections (LAN/private) nor external WAN (public/WAN) connections  could access the controller.  If Windows Firewall is enabled, the UniFi controller needs two apps … Continue reading

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Crossflash Dell 0WFN6R 9341-8i to LSI 9300-8i IT Mode

These are the steps to crossflash a Dell 0WFN6R (SAS9341-8i) to an LSI 9300-8i. At the time of this guide the latest firmware available is P16. All files needed for this guide can be downloaded here. The firmware and BIOS … Continue reading

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Aquantia AQC108 No Network Status LEDs

Recent experience with an Aquantia AQtion AQC108 5G network card that was integrated in a motherboard (Supermicro X11SRA-F).    Plugging in an ethernet cable would not activate the port (status LEDs would not light up on either the NIC or … Continue reading

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Supermicro CSE-836 Chassis PWM 80mm Fan Swap

Upgraded a Supermicro CSE-836 from 3 pin fans to 4 pin PWM fans. Here is the before and after matrix of part numbers: Before Middle Fans (Qty 3) FAN-0070L 672042003884 San Ace 80 9G0812G103 Rear Exhaust Fans (Qty 2) FAN-0062L … Continue reading

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Errno 28 When Trying to Update VMware ESXi 6.7.0 Update 3

When trying to update/upgrade ESXi 6.7.0 Update 3 (via software profile update command) you may run into the following error below. This was a host running specifically Update 3 build 15018017 trying to update to build 15160138. [InstallationError] [Errno 28] … Continue reading

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Error When Updating CentOS 7 – GPG keys are not correct for this package

When trying to update a CentOS 7 system after an extended amount of time, I ran into this error: Downloading packages: warning: /var/cache/yum/x86_64/7/ius/packages/yum-plugin-replace-0.2.7-1.ius.el7.noarch.rpm: Header V4 RSA/SHA256 Signature, key ID 4b274df2: NOKEY Retrieving key from file:///etc/pki/rpm-gpg/IUS-COMMUNITY-GPG-KEY The GPG keys listed for … Continue reading

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UniFi Controller Notifications using a STARTTLS Mail Server

Recent issue with UniFi Controller (version 5.12.35) where test emails were failing on a remote SMTP server (Postfix) configured for STARTTLS listening on port 25. The workaround was to open port 587 on the firewall and redirect it to port … Continue reading

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