October 30, 2026 · Zwiegnet Consulting
Plan a two-node Oracle RAC 19c cluster on Oracle Linux 9: server sizing, ASM disk groups and voting files, public and private networks, node VIPs, SCAN and DNS records.
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August 18, 2026 · Zwiegnet Consulting
Configure DHCP for Dynamic DNS CentOS 6 Configure DHCP for Dynamic DNS CentOS 6 At this point we have setup a Dynamic DNS Master Server, and a Dynamic DNS Slave…
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August 17, 2026 · Zwiegnet Consulting
Dynamic DNS (DDNS) Slave CentOS 6 Dynamic DNS (DDNS) Slave CentOS 6 This blog assumes you went through the previous blog on how to setup a Dynamic DNS Master server,…
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August 2, 2026 · Zwiegnet Consulting
Understanding Public DNS Understanding Outside DNS can be very complicated if you do not have a good understanding of it. Basically outside dns works in reverse of the way you…
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August 2, 2026 · Zwiegnet Consulting
Enable DNS Scavenging Windows Server This one bugs me a little bit, why this is not enabled by default in Microsoft’s Active Directory, DNS Scavenging. The idea behind it is…
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August 2, 2026 · Zwiegnet Consulting
Install Bind/Named/DNS on CentOS Install Bind/Named/DNS on CentOS Need a Linux DNS server in a jiffy? Look no further, here’s the basic steps to get BIND Installed. Please note that…
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August 1, 2026 · Zwiegnet Consulting
Troubleshooting WAN Connections Troubleshooting WAN Connections can be a real pain with multiple ISP’s in-between here and there. This guide should help a little. Say for example we have a…
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July 28, 2026 · Zwiegnet Consulting
nsupdate cheat sheet nsupdate cheat sheet Basic Syntax: 1.) nsupdate -vv -k /etc/rndc.key {file} (must put ‘send’ at end of file) 2.) nsupdate -vv -k /etc/rndc.key > update whatever >…
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July 26, 2026 · Zwiegnet Consulting
Configure Dynamic DNS(DDNS) CentOS Configure Dynamic DNS(DDNS) CentOS Dynamic DNS allows you to dynamically update your zone files, without needing to restart the BIND/Named service, as well as immediately pushes…
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July 25, 2026 · Zwiegnet Consulting
Configure Internal DNS Server CentOS,Redhat Linux Configure Internal DNS Server CentOS,Redhat Linux If you are looking to setup an Internal-Only DNS server, than this article is what you are looking…
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