Open port on firewall to allow Remote Desktop
Open port on firewall to allow Remote Desktop
1. Prepare
DC21 : Domain Controller (pns.vn), IP 10.0.0.21 | DC22 : Terminal Server , IP 10.0.0.22
ASA : Cisco ASA 8.42 , IP management 10.0.0.100
DC23 : Domain Member (pns.vn) , IP 10.0.0.23 | WIN1091 : Client , IP 10.0.2.92 ( LAN2 )
2. Step by step : Open port on firewall to allow WIN1091 remote desktop to on DC23 ( Port 3389 )
DC23 : Enable remote desktop service
DC22 : Remote desktop to DC23 === OK
WIN1091 : Test Remote desktop to DC23
Start - mstsc - 10.0.0.23 === cannot access
Start - cmd - ping 10.0.0.23 === OK
Telnet 10.0.0.23 3389 === Connect failed
DC22 : Open port 3389 on firewall
Access the Cisco ASA using ASDM :
Configuration tab - Firewall - Right-click LAN2 - Add Access Rule...
Action : Permit
Source : 10.0.2.91
Destination : 10.0.0.23
Service : - tcp-udp/3389 - OK
Description : Remote desktop === OK - Apply
WIN1091 : Test Remote desktop to DC23
Start - run - cmd - Telnet 10.0.0.23 3389 === OK
Start - mstsc - 10.0.0.23 === OK
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