Cleanup remote connections
TRAMP provides several ways to flush remote connections.
Command: tramp-cleanup-connection vec &optional keep-debug keep-password
This command flushes all connection related objects. vec is the internal representation of a remote connection. When called interactively, this command lists active remote connections in the minibuffer. Each connection is of the format /method:user@host:.
Flushing remote connections also cleans the password cache (see Reusing passwords for several connections), file cache, connection cache (see Reusing connection related information), and recentf cache. It also deletes session timers (see Setting own connection related information) and connection buffers.
If keep-debug is non-nil, the debug buffer is kept. A non-nil keep-password preserves the password cache.
Command: tramp-cleanup-this-connection
Flushes the current buffer’s remote connection objects, the same as in tramp-cleanup-connection.
Command: tramp-cleanup-all-connections
Flushes all active remote connection objects, the same as in tramp-cleanup-connection. This command removes also ad-hoc proxy definitions (see Declaring multiple hops in the file name).
Command: tramp-cleanup-all-buffers
Just as for tramp-cleanup-all-connections, all remote connections and ad-hoc proxy definition are cleaned up in addition to killing all buffers related to remote connections.
Command: tramp-cleanup-some-buffers
Similar to tramp-cleanup-all-buffers, where all remote connections and ad-hoc proxy definition are cleaned up. However, additional buffers are killed only if one of the functions in tramp-cleanup-some-buffers-hook returns t.
User Option: tramp-cleanup-some-buffers-hook
The functions in this hook determine, whether a remote buffer is killed when tramp-cleanup-some-buffers is called. Per default, remote buffers which are linked to a remote file, remote dired buffers, and buffers related to a remote process are cleaned up.