DBCLIENT(1) General Commands Manual DBCLIENT(1) (NAME) dbclient - SSH (SYNOPSIS) dbclient [flag arguments] [-p port] [-i id] [-L l:h:p] [-R l:h:p] [-l user] host [more flags] [command] dbclient [args] [user1]@host1[^port1],[user2]@host2[^port2],... (DESCRIPTION) dbclient Dropbear SSH . (OPTIONS) command . . . ( -t -T ). -p port port () . hostname^port . 22 . -i idfile (). idfile ( ). dropbearkey(1) OpenSSH dropbearconvert(1) . ~/.ssh/id_dropbear . -L [listenaddress]:listenport:host:port (Local port forwarding). listenport SSH port host . -R [listenaddress]:listenport:host:port (Remote port forwarding). listenport SSH port host . -l user . user . user@host . -t PTY (). . . -T PTY. . -t . -N . . -f ( ) . ( -N) . . -g . -L -R -R ssh . -y . . . -A (Agent) . dbclient OpenSSH ( SSH_AUTH_SOCK ) . -A . . . Dropbear . SSH -o DisableTrivialAuth . -W windowsize . . -h . -K timeout_seconds (Keepalive). . . 0 . . -I idle_timeout idle_timeout . -z Dropbear AF21 QoS . -z . -J proxy_command | -J &fd / proxy_command TCP. . `exec proxy_command ...' . &fd dbclient . . socat : socat EXEC:'dbclient -J &38 ev',fdin=38,fdout=38 TCP4:host.example.com:22 -B endhost:endport Netcat Dropbear endhost . / dbclient . -c cipherlist (Ciphers) . -c help . -m MAClist (MAC) . -m help . -o option OpenSSH . . ssh_config(5) . yes/no y/n . : BatchMode . yes no () . BindAddress . Compression yes no . ( ). . . DisableTrivialAuth ( ). SSH . ExitOnForwardFailure dbclient . yes no () . ForwardAgent . yes no () . GatewayPorts . yes no () . IdentityFile . PasswordAuthentication . DROPBEAR_PASSWORD . yes () no . Port -p. ProxyCommand . ServerAliveInterval (keep-alive) . 0 () . StrictHostKeyChecking yes known_hosts . known_hosts . no known_hosts. accept-new known_hosts . ask . UseSyslog dbclient stderr syslog. -s (subsystem) sftp . Dropbear sftp sftp OpenSSH : sftp -S dbclient user@host -b [address][:port] . . ( ) . -Q algo . kex sig cipher mac compress. -V (MULTI-HOP) Dropbear <<>> (hop) . TCP . SSH . (caret) ( matt@martello^44). scp rsync ( dbclient ssh/rsh). SSH : scp -S dbclient matt@martello,root@wrt,canyons:/tmp/dump . ( "canyons" "wrt" ) TCP -L. . (ESCAPE CHARACTERS) `~.' ( ) . `~^Z' ( ctrl-z) . PTY . `~R' . (ENVIRONMENT) DROPBEAR_PASSWORD DROPBEAR_PASSWORD . . SSH_ASKPASS dbclient . SSH_ASKPASS . DISPLAY TTY SSH_ASKPASS_ALWAYS . (FILES) ~/.ssh/dropbear_config . ssh_config(5) . `=' . . `#' () . . . . (case insensitive). Host . Host EOF ( ) . HostName . DNS IP . Port . User . IdentityFile . Dropbear . dropbearkey(1) . ~/ . / . . : / . (NOTES) zlib dbclient . (SEE ALSO) dropbearkey(1), dropbear(8) https://matt.ucc.asn.au/dropbear/dropbear.html (AUTHORS) Matt Johnston . Mihnea Stoenescu Dropbear . Gerrit Pape . Linux 6.12.107+deb13-amd64 February 1, 2023 Linux 6.12.107+deb13-amd64