[{"data":1,"prerenderedAt":43},["ShallowReactive",2],{"tool-content-en-port-lookup":3},{"id":4,"title":5,"body":6,"description":34,"extension":35,"locale":36,"meta":37,"navigation":38,"path":39,"seo":40,"stem":41,"toolId":12,"__hash__":42},"tools\u002Ftools\u002Fen\u002Fport-lookup.md","Port Lookup",{"type":7,"value":8,"toc":29},"minimark",[9,13,22],[10,11,5],"h2",{"id":12},"port-lookup",[14,15,16,17,21],"p",{},"Firewall prompts, ",[18,19,20],"code",{},"netstat"," output, and security scan reports all reference ports by number. This quick reference covers dozens of everyday TCP\u002FUDP ports — web services, mail, remote access, databases, file transfer, DNS, and security protocols — with the service behind each number.",[14,23,24,25,28],{},"Search by port (partial matches work, so ",[18,26,27],{},"44"," finds both 443 and 8443), by service keyword, or filter by category. Each entry lists whether the service speaks TCP, UDP, or both, helping you write precise firewall rules instead of opening ranges blindly.",{"title":30,"searchDepth":31,"depth":31,"links":32},"",2,[33],{"id":12,"depth":31,"text":5},"Search common TCP and UDP ports by number, service name, or category to identify what uses them.","md","en",{},true,"\u002Ftools\u002Fen\u002Fport-lookup",{"title":5,"description":34},"tools\u002Fen\u002Fport-lookup","J4hm83_V58SRxP-t03GdRScXFzSDffz3mwdWTPT-g_w",1792391419995]