2021年10月7日 · But unfortunately, after creating a new inbound rule in Windows firewall settings, my port 22 is still not open. I've checked that my port isn't open by using this command : netstat -a -n and. netstat -ab I've also checked that my rule is enabled : netsh firewall show config and it returns : 22 TCP Activer Entrant SSH

2015年3月18日 · The generic answer of "every exposed port is an attack surface" misses important port 22 nuances like the authentication method, SSH has a wide array of auth options, password authentication is more dangerous than private key, I believe there's also federated authentication like ldap.

Officially port 22 is reserved for secure shell access (ssh/sftp). It is good practice to follow the standards set out by the IANA, but so long as you don't require those services there isn't a problem with running your HTTP port forwarding against 22. It will work (I have done this before due to similar reasons).

2011年7月15日 · SFTP runs on top of SSH, which - by convention - uses the well known port of 22. The well known port, however, is only a convention - there is no way (and indeed no point) in preventing the server from listening on a different port. (i.e. you can run the server on port 63251 and it would still work, as long as the clients are connecting to that ...

2011年4月13日 · While TCP port 22 is the general right answer, this is dependent on the fact that SSH is configured to use the standard port and not an alternative port. As SFTP runs as a subsystem of SSH it runs on whatever port the SSH daemon is listening on and that is administrator configurable.

2017年11月2日 · This new server will pass through a firewall configured to only allow port 22. It may sound strange, but for security reasons, they prefer not to open other ports on the firewall. They are asking if the server can use port 22 for the server itself but also for the client. The server is running Windows Server 2008 64 (with freeSSH/OpenSSH)

2019年3月4日 · What I did: 1. Close the Windows Firewall. 2. Check the network devices if any limit between two server. 3. Execute command "telnet 127.0.0.1 22" on server, and it said "connect failed". 4. Because I operation this server by remote desktop, so the network adapter and it's driver is ok.

Thanks for the detail @computergeek125. Unfortunately, even after setting up the config as suggested, I still get the same message ssh: connect to host domain.com port 22: Resource temporarily unavailable When I run nc -v <host> <port>, for verbose output, I get the same error: Resource temporarily unavailable.

I'm a programmer, and I have worked for a few clients whose networks block outgoing connections on port 22. Considering that programmers often need to use port 22 for ssh, this seems like a counterproductive procedure. At best, it forces the programmers to bill the company for 3G Internet. At worst, it means they can't do their jobs effectively.

if ftps is the same as sftp, then you only need to be able to access port 22 on the vendor's site. On your end you should configure your firewall to allow port 22 outgoing, and related incoming traffic. This will allow communication on any incoming port that is related to the initial outgoing connection on port 22.