Looking for information on Protocol TCP 514? This page will attempt to provide you with as much port information as possible on TCP Port 514.
TCP Port 514 may use a defined protocol to communicate depending on the application. A protocol is a set of formalized rules that explains how data is communicated over a network. Think of it as the language spoken between computers to help them communicate more efficiently.
Protocol HTTP for example defines the format for communication between internet browsers and web sites. Another example is the IMAP protocol that defines the communication between IMAP email servers and clients or finally, the SSL protocol which states the format to use for encrypted communications.
TCP Port 514
Here is what we know about protocol TCP Port 514. If you have information on TCP port 514 that is not reflected on this page, simply leave a comment and we’ll update our information.
PORT 514 – Information
- Port Number: 514
- TCP / UDP: TCP
- Delivery: Yes
- Protocol / Name: [Malware known as RPCBackdoor]
- Port Description: [malware info: RPC Backdoor]
- Virus / Trojan: Yes, Caution!
Use our free Digital Footprint and Firewall Test to help verify you are not infected.
Side note: TCP port 514 uses the Transmission Control Protocol. TCP is one of the main protocols in TCP/IP networks. Whereas the IP protocol deals only with packets, TCP enables two hosts to establish a connection and exchange streams of data. TCP guarantees delivery of data and also guarantees that packets will be delivered on port 514 in the same order in which they were sent. Guaranteed communication over port 514 is the key difference between TCP and UDP. UDP port 514 would not have guaranteed communication in the same way as TCP.
Because protocol TCP port 514 was flagged as a virus (colored red) does not mean that a virus is using port 514, but that a Trojan or Virus has used this port in the past to communicate.
TCP 514 – Disclaimer
We do our best to provide you with accurate information on PORT 514 and work hard to keep our database up to date. This is a free service and accuracy is not guaranteed. We do our best to correct any errors and welcome feedback!
514/udp is the syslog port. This is very common; if Qwest support does not know this, they are not “tech” support!
Take a look at the syslog configuration on whatever host is sending the traffic, and remove the MAC’s IP address from the config.
If that host is getting its IP via DHCP, it’s also possible that the syslog server IP address is sent to the host by the DHCP server as one of the DHCP options, in which case you’d need to tell the DHCP server to stop doing this. (From your description it sounds like the source host for the syslog traffic is your DLS modem. The DSL modem probably get’s it’s IP info from Qwest’s DHCP server. If it’s Qwest’s DHCP server, they will need to make this change.)
My firewall logs indicate that my DSl modem tries to access port 514. My service provider is Qwest communications, my modem is is an ActionTech GT724R. The access to port 514 shows up as a UDP port attempt.
Qwest Tech support says they do not know what that port is for, and it should not be something that shows up. They recommend blocking the port in my firewall.
I am on a apple Mac G5 PPC operating OSX 10.5.8 running Door Stop, Brick House/Flying Buttress and Netmine. My DSl modem is also set to firewall as well.