Network Topology Reorganization
When there would no longer be any server in Mission Viejo and Phoenix, we can…
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Transfer DHCP Scopes Between Windows Servers
When a new DHCP server is introduced into the system, it's often necessary to configure…
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DHCP Config on Enterasys Core Layer-3 Switch
# Setting ip helper-address to enable all VLANS to be able to access Internal DNS…
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Sample: AWS & Satellite Subnets
Web Tier App Tier Data Tier Zone A 172.31.0.0/20 172.31.64.0/24 172.31.128.0/24 Zone B…
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Linux Networking: Manual Configurations
Ubuntu Systems /etc/resolv.conf specifies the nameservers for resolver lookups. The order of lookup is sequential…
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Open VPN Client Configuration Fix
OpenVPN client works very well on Windows 7 machines. However, its Windows 10 and Linux…
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Network Zones
Corporate Head-Quarter:DMZ: Extranet: VendorsWeb: Front-end Sites (a) Web (b) Application (c) DataPublic: Public, satellite VPN…
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Fixing ‘RPC Server Not Available’
Overview: RPC requires these follow ports to function properly: RPC TCP 135 RPC randomly allocated…
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