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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for April 19th, 2019

Do not use, even if you are a Level 3 customer – The Story Behind a DNS Legend –, ltd.

Posted by jpluimers on 2019/04/19

Interesting bit of history: [WayBack] The Story Behind a DNS Legend –, ltd.


Posted in Development, History, Internet, Power User | Leave a Comment »

“ESXi 6.5” “vSphere Web Client” “VMware Tools” – how to install/upgrade

Posted by jpluimers on 2019/04/19

This got me zero good hits in the top 10: “ESXi 6.5” “vSphere Web Client” “VMware Tools” – Google Search

Since how to install/upgrade moved, here is a screenshot how to install or upgrade the VMware Tools using the “new” vSphere Web Client that standard in ESXi 6.5 and up:

It would be much more intuitive if the blue bar just linked to that action.


Posted in ESXi6.5, Power User, Virtualization, VMware, VMware ESXi | Leave a Comment »

Postfix and blacklists

Posted by jpluimers on 2019/04/19

Still learning postfix configuration, below are some links on how to enable various blacklists that use the RBL DNS (aka [WayBack] DNSBL) way of operations.

They are centered around using the of the [WayBack] Postfix Documentation entry reject_rbl_client listings:

Basically reject_rbl_client is part of smtpd_client_restrictions.


I need to dig further into some other blacklist options than reject_rbl_clientreject_rhsbl_client, reject_rhsbl_reverse_client, reject_rhsbl_sender or reject_rhsbl_recipient restriction.

Then I need to go through these links:

Some blacklist checking links:


Posted in *nix, *nix-tools, postfix, Power User | Leave a Comment »

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