How to redirect ALL DNS traffic to OpenDNS – OpenDNS
It’s been a while since I’ve fooled around with DNS but doesn’t it usually listen on port 53 to start with? I let my registrar and CloudFlare take care of all that noise… a more harmonious outcome that way. Anyway, if you need a DNS server, find a linux - When would I open Port 53 for DNS? - Server Fault Port 53 is open for DNS. Why would I need this? You need to have UDP 53 allowed for responses to DNS queries that your server sends, as UDP is a stateless protocol. Don't block it if you want any kind of outbound connectivity, software updates, etc. Commonly Hacked Ports - dummies TCP and UDP port 53 — DNS (Domain Name System) TCP port 443 — HTTP (Hypertext Transport Protocol) and HTTPS (HTTP over SSL) TCP port 110 — POP3 (Post Office Protocol version 3) TCP and UDP port 135 — Windows RPC. TCP and UDP ports 137–139 — Windows NetBIOS over TCP/IP. DNS (Domain Name System) uses Port 53 TCP/UDP. What are
TCP 53 - Port Protocol Information and Warning!
However, if what you did was to block ALL port 53 traffic you will disable all DNS functionality, including OpenDNS. A rule to block all port 53 traffic generally also needs a rule to allow port 53 traffic to OpenDNS to process BEFORE the blocking rule. The effects of this are to allow port 53 …
List of Common Network Port Numbers – Utilize Windows
TCP port 21 — FTP (File Transfer Protocol) TCP port 22 — SSH (Secure Shell) TCP port 23 — Telnet. TCP port 25 — SMTP (Simple Mail Transfer Protocol) TCP and UDP port 53 — DNS (Domain Name System) Port 53 is a true harbor of local food, boutique wines, top shelf spirits and craft beers. Chef owner Adam Mitchell, with help from his dedicated team, have worked hard to create a restaurant that appeals to everyone with a fantastic range of food and beverages and positioned in a great location. 2. Port 53: Port 53 is used by DNS. Let’s see one DNS packet capture. Here 192.168.1.6 is trying to send DNS query. So destination port should be port 53. Now we put “udp.port == 53” as Wireshark filter and see only packets where port is 53. 3. Port 443: Port 443 is used by HTTPS. Let’s see one HTTPS packet capture. The port forwarding tester is a utility used to identify your external IP address and detect open ports on your connection. This tool is useful for finding out if your port forwarding is setup correctly or if your server applications are being blocked by a firewall. The setup that you have shown in your image tells the incoming traffic from internet to route to your computer (192.168.1.172) at port 53. For example, if your public IP address is 205.126.125.214 , then if you type 205.126.125.214:53 from outside of your network, you will be routed to 192.168.1.172:53