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SME Server:Documentation:Administration Manual:Chapter11 (view source)
Revision as of 17:51, 22 April 2014
, 17:51, 22 April 2014→SSH
===== SSH =====
===== SSH =====
If you need to connect directly to your server and login from a remote system belonging to you, we strongly encourage you to use ssh. In addition to UNIX and Linux systems, ssh client software is now also available for Windows and Macintosh systems. (See the section below.)
If you need to connect directly to your server and login from a remote system belonging to you, we strongly encourage you to use ssh. In addition to UNIX and Linux systems, ssh client software is now also available for Windows and Macintosh systems. (See the section below.)
Configuring SSH access as public will result in lots of script based login attempts which consume bandwidth, CPU and generate log noise. A new iptables rule which blocks repeated connection attempts to the configured sshd port.
It is set to reject connections when there have been 3 or more requests in the previous 15 minutes. By design only IP outside your local network will blocked if too many attempts are done. See [[AutoBlock#Public_SSH_Acess|AutoBlock_SSH]]
If you do not have any reason to allow remote access, we suggest you set this to No access.
If you do not have any reason to allow remote access, we suggest you set this to No access.
SSH (secure shell) provides a secure, encrypted way to login to a remote machine across a network or to copy files from a local machine to a server. Many people do not realize that many programs such as telnet and ftp transmit your password in plain, unencrypted text across your network or the Internet. ssh and its companion program scp provide a secure way to login or copy files. The ssh protocol was originally invented by SSH Communications Security which sells commercial ssh servers, clients, and other related products. The protocol itself has two versions - SSH1 and SSH2 - both of which are supported by most clients and servers today. For more information about SSH Communications Security and its commercial products, visit http://www.ssh.com/.
SSH (secure shell) provides a secure, encrypted way to login to a remote machine across a network or to copy files from a local machine to a server. Many people do not realize that many programs such as telnet and ftp transmit your password in plain, unencrypted text across your network or the Internet. ssh and its companion program scp provide a secure way to login or copy files. The ssh protocol was originally invented by SSH Communications Security which sells commercial ssh servers, clients, and other related products. The protocol itself has two versions - SSH1 and SSH2 - both of which are supported by most clients and servers today. For more information about SSH Communications Security and its commercial products, visit http://www.ssh.com/.