![]() Currently, ''blowfish'', ''3des'', and ''des'' are supported. Specifies the cipher to use for encrypting the session in protocol version 1. If the option is set to ''no'', the check will not be executed. This allows ssh to detect if a host keyĬhanged due to DNS spoofing. If this flag is set to ''yes'', ssh(1) will additionally check the host IP address in the known_hosts file. The argument to this keyword must be ''yes'' or ''no''. Specifies whether to use challenge-response authentication. Option does not work if UsePrivilegedPort is set to ''yes''. Only useful on systems with more than one address. Use the specified address on the local machine as the source address of the connection. This option is useful in scripts and other batch jobs where no user is present to supply the If set to ''yes'', passphrase/password querying will be disabled. Valid arguments are ''any'', ''inet'' (use IPv4 only), or ''inet6'' (use IPv6 only). Specifies which address family to use when connecting. See PATTERNS for more information on patterns. the name is not converted to a canonicalized host name before matching). ![]() The host is the hostname argument given on the command line (i.e. A single '*' as a pattern can be used to provide global defaults forĪll hosts. If more than one pattern is provided, they should be separated by whitespace. Host' Restricts the following declarations (up to the next Host keyword) to be only for those hosts that match one of the patterns given after The possible keywords and their meanings are as follows (note that keywords are case-insensitive and arguments are case-sensitive): Arguments may optionally be enclosed in double quotes (") in order to represent arguments Whitespace or optional whitespace and exactly one '=' the latter format is useful to avoid the need to quote whitespace when specifying configuration options ![]() Configuration options may be separated by Otherwise a line is of the format ''keyword arguments''. The configuration file has the following format:Įmpty lines and lines starting with '#' are comments. Since the first obtained value for each parameter is used, more host-specific declarations should be given near the beginning of the file, and general The matched host name is the one given on the command line. Is only applied for hosts that match one of the patterns given in the specification. The configuration files contain sections separated by ''Host'' specifications, and that section system-wide configuration file ( /etc/ssh/ssh_config)įor each parameter, the first obtained value will be used. user's configuration file ( ~/.ssh/config)ģ. Ssh(1) obtains configuration data from the following sources in the following order:ġ. Ssh_config - OpenSSH SSH client configuration files ![]()
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