Port 135 is used by Messenger Service (not MSN Messenger) and exploited in popup net send messenger spam [MSKB 330904]. To stop the popups you'd need to filter port 135 at the firewall level or stop the messenger service. The service uses all the following ports: 135/tcp, 135/udp, 137/udp 138/udp, 139/tcp, 445/tcp.

4. Block ports 135-139 in your router/firewall. Keep in mind that you might still be leaking out information about your system that can be used against you (such as your computer and workgroup names) to the entire Internet, unless ports are filtered by a firewall. Site server --> Distribution point: RPC endpoint mapper using UDP and TCP port 135. Site server --> Distribution point: RPC dynamic TCP ports. Use IPsec to help secure the traffic between the site server and site systems. If you must restrict the dynamic ports that are used with RPC, you can use the Microsoft RPC configuration tool (rpccfg.exe). SMB mainly used for file sharing. In general SMB protocol is used for inter-process communication between the same host processes or remove host processes. SMB Port 139 or 445. Newcomers to the Windows ecosystem generally confuses port numbers of SMB. SMB service is provided over two ports. TCP port 139 is SMB over NETBIOS. Nov 30, 2017 · UDP Port 88 is used by clients and domain controllers to authenticate with each other. Both UDP and TCP Port 135 are required for communication between domain controllers and clients to domain controllers. TCP Port 139 and UDP 138 network ports are used by the SYSVOL replication service to replicate contents of SYSVOL folder.

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. TCP port 1433 and UDP port 1434 — Microsoft SQL Server

Oct 26, 2016 · Windows 7 to Windows XP or Windows Vista to Windows XP Port 3389 TCP (local/remote) In addition, the Offer RA via DCOM scenario uses port 135 (TCP)." So I am trying to restrict the dynamic range that can be used to a manageable handful. Because protocol UDP port 135 was flagged as a virus (colored red) does not mean that a virus is using port 135, but that a Trojan or Virus has used this port in the past to communicate. UDP 135 – Disclaimer. We do our best to provide you with accurate information on PORT 135 and work hard to keep our database up to date. This is a free When communicating with remote SSIS port 135 is used & if it’s a SSIS package is running against a database server you need 1433 or as specified. Uses msdts1 protocol for service type msdts1. Jun 05, 2006 · Ports 137-139 are NetBios ports which are used for file and printer sharing across a LAN. So if you are behind a router, trust your network, and need to share files or printers, then they should be open.

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telnet [domain name or ip] [port] Put the IP address or domain name of the server you’re trying to connect to in place of [domain name or ip], and replace the second brackets with the port number on the remote machine, connection to which you want to test. For example, to verify connection to 192.168.0.10 on port 25, issue the command: Apr 16, 2020 · Incoming TCP Port 8090 - Used to upload archives for restoration and migrations. This port will only be enabled during the archive uploads process. Outgoing TCP Port 443 - Appliance Update May 15, 2011 · "The process 'System' (as user NT AUTHORITY\SYSTEM) attempted to accept a connection as a server on TCP port 445 from 10.82.209.49 using interface Virtual\Cisco Systems VPN Adapter. The operation A port may refer to any of the following: 1. When referring to a physical device, a hardware port or peripheral port is a hole or connection found on the front or back of a computer. Ports allow computers to access external devices such as printers. Below is a short listing of the different computer ports you may find on a computer.