In order to improve perfomance there are recommendations to set the MTU for the iSCSI interface to MTU 9000 instead of the default 1500. To do this, it important that you set MTU to 9000 on all devices involved; FreeNAS network interface, VMware NICs and vSwitch and all switch ports on the switches connecting those. […]
Author Archive for: stefan
About Stefan Helander
I was born a nerd! As a child I was fond of fiddling with all kind of thechnical stuff, discovering how things work and often fixing them. As a 6 year old I fixed my grandmothers 220 volts wiring.
The interest in technical stuff grown even bigger in the teenage years where I got my amateur radio license and developed a keen interest in computers.
Today I am proud to be a nerd. It is a part of my profession.
To all of you nerds and geeks out there - remember that nerd is the new sexy! :)
Entries by Stefan Helander
When restoring an Akeeba backup of a WordPress site the restore process was interrupted with the error message saying 1118 – Row size too large (>8126). Solution: Use SSH to log in to your database server Edit /etc/mysql/my.cnf or if you use a config file under /etc/mysql/conf.d, edit that one Under the [mysqld] section add:internal_tmp_disk_storage_engine=MyISAMinnodb_strict_mode […]
When using Contact Form 7 forms in a site where the All-in-One Intranet plugin is installed, it will not be possible to submit the CF7 forms. The solution is quite simple. In the Advanced settings of the Contact Form 7 form, add the line: subscribers_only: true
When looking for the latest iLO2 firmware for HP Proliant DL380 Gen 5 on the HPE website I found version 2.27 dated in 2015. To resolve browser issues with modern browsers I wanted to find a later firmware. On this site you will find an exellent collection of all the latest iLO firmwares: https://pingtool.org/latest-hp-ilo-firmwares/ The latest […]
When getting the latest IPMI firmware for your Supermicro server, you need to know what model of the motherboard your server has. Often the server lives in a datacenter somewhere and you don’t want to go there, take down the server, pull it out of the rack and investigate it. If you are running Linux […]
After a WordPress site move to new hosting, some images wouldn’t load and investigating the php error log revealed: open_basedir restriction in effect. File(/) is not within the allowed path(s) The solutions was to edit the database using phpMyAdmin, go to the table wp_options and set the correct value for upload_path.
On a VMware 5.5 ESXi host I suddenly experienced guest machined that hanged or froze. I had to reset the guest machine to get it up and running again. In the Events tab I could see entries like below at the time of freezing. Lost access to volume 51d15c1a-17706da4-0ae6-001f29e5c998 (datastore1) due to connectivity issues. Recovery […]
When trying to install an APS package on a ISPConfig3 system, the package was never installed and the status “installation_task” remained for the site I tried to install a package. Investigating /var/log/ispconfig/cron.log revealed: PHP Fatal error: Uncaught Error: Call to undefined function curl_init() in /usr/local/ispconfig/server/lib/classes/aps_installer.inc.php:627 This problem can occur when curl is not installed on […]
The Apple products, iPhone, iPad and Mac computers sometimes has problems when connecting to a wifi network where other devices have no problems. The problem seems to be in the encryption used. Make sure the router doesn’t have WPA/WPA2 mixed mode enabled, i.e. set it to WPA2 only. If encryption is configurable, use AES (not […]
When trying to install Samsung Kies 3 on a Windows 10 machine, the error message “Side by side configuration is incorrect” was displayed. The reason to this error is that the Visual C++ 2008 runtime is not installed. To solve the problem you need to download and install Microsoft Visual C++ 2008. Download it from these […]