SHIFT-WIKI - Sjoerd Hooft's InFormation Technology
This WIKI is my personal documentation blog. Please enjoy it and feel free to reach out through blue sky if you have a question, remark, improvement or observation. See below for the latest additions, or use the search or tags to browse for content.
Forwarding DNS Server
Summary: How to setup a linux DNS forwarding server.
Date: Around 2015
Refactor: 7 March 2025: Checked links and formatting.
This is the installation of bind on SLES 11 to create a forwarding DNS Server. This is installed on the proxy server since that is the only server which has internet access. The main DNS servers (which handle the internal domain) will then use this DNS server as their forwarding server.
Multisite SSO for vCenter 5.1
Summary: How to configure Multisite SSO for vCenter 5.1.
Date: Around 2014
Refactor: 6 March 2025: Checked links and formatting.
I used to install vCenter 5.1 using the simple install method. I like it easy. Then… I had to configure vCenter Linked Mode. Then I got bitten. It turned out that if you do a vCenter 5.1 simple install, the Single Sign On component gets installed like a single site SSO. So I had to reinstall, and that's what I did.
Fix: After ADMT Migration Users Cannot Logon - Profile Errors - Kerberos - MaxTokenSize
Summary: How to change the maximum allowed size of a Kerberos Token.
Date: Around 2014
Refactor: 6 March 2025: Checked links and formatting.
After migrating AD User Accounts between Active Directory Domains, and enabling the SID history, some users were not able to logon anymore. This is because the Kerberos token size is too big so users cannot access their profile anymore, cannot access their network mappings and policies are not applied anymore.
I will discuss the quick fix here, and give some detailed background information and additional fixes.