LTSP-UPDATE-SSHKEYS(8) - Linux man page online | Administration and privileged commands

Update LTSP chroots to trust the server ssh keys.

February 2018
LTSP-UPDATE-SSHKEYS(8) System Administration Utilities LTSP-UPDATE-SSHKEYS(8)


ltsp-update-sshkeys - update LTSP chroots to trust the server ssh keys


ltsp-update-sshkeys [OPTION] [host...]


If any hosts are specified, their SSH keys are exported in a file, by default /etc/ltsp/ Otherwise, all LTSP chroots are updated to trust the SSH keys of this server along with any additional keys in /etc/ltsp/ssh_known_hosts.* files.


-b, --base[=PATH] The LTSP base directory Defaults to /opt/ltsp if unspecified. -e, --export[=FILE] File name to export the hosts SSH keys to (- for stdout). Defaults to /etc/ltsp/ if unspecified. -h, --help Displays the ltsp-update-sshkeys help message. -p, --port[=PORT] SSH port for remote servers. -u, --update Update the chroot SSH keys even if hosts are specified. --version Output version information and exit.


Part of the ltsp package and the latest versions are available in source form from


/etc/ltsp/<tool>.conf: Upon execution the tool will read a configuration file to override built-in defaults. Values are NAME="VALUE" pairs, with # representing commented lines. most commandline options have an equivalent. an example Debian based system with an alternate base loca‐ tion, architecture, and distribution: # set alternate default location for ltsp chroot (--base) BASE="/srv/ltsp" # build an amd64 chroot by default (--arch) ARCH="amd64" # build a Debian sid environment (--dist) DIST="sid" /etc/ltsp/ltsp-server.conf: Each LTSP server tool will read a generic configuration file. This file is typically used for setting BASE, TFTP_DIRS and TFTP_BOOT_DIR. These settings are overwritten by those set in specific tool configs.


Autogenerated from the script source code with help2man. Distributed under the terms of the GNU General Public License version 2 or any later version.


Report bugs to


ltsp-build-client(8), ltsp-update-kernels(8), ssh-keyscan(1), sshd(8)
ltsp-update-sshkeys 5.5.10-1build1 February 2018 LTSP-UPDATE-SSHKEYS(8)
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ltsp-update-sshkeys(8) referred by ltsp-build-client(8) | ltsp-update-image(8) | ltsp-update-kernels(8)
refer to ltsp-build-client(8) | ltsp-update-kernels(8) | ssh-keyscan(1) | sshd(8)
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