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Create 15-add-ssh-known-hosts.sh (#193)

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enables automation / scripting using ssh and scp without needing prompting for trusting new hosts

Former-commit-id: 166f743781348070b95a8b181c7146ea5930dc2b
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Jason Hobbs 2021-07-03 00:35:09 -05:00 committed by GitHub
parent d7e642e935
commit 6ada451310
1 changed files with 29 additions and 0 deletions
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29
on-boot-script/examples/udm-files/on_boot.d/15-add-ssh-known-hosts.sh Normal file
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#!/bin/sh
#####################################################
# ADD KNOWN HOSTS AS BELOW - CHANGE BEFORE RUNNING #
#####################################################
# set -- "known host text on a line with quotes " \ #
# "second known host on another line " \ #
# "one per line, last line has no backslash" #
#####################################################
set -- "hostname ecdsa-sha2-nistp256 AAAABIGHOSTIDENTIFIERWITHMAGICSTUFF=" \
"otherhost ecdsa-sha2-nistp256 AAAADIFFERENTHOSTMAGICSTUFF!@HJKSL="
KNOWN_HOSTS_FILE="/root/.ssh/known_hosts"
counter=0
for host in "$@"
do
## Places known host in ~/.ssh/known_hosts if not present
if ! grep -Fxq "$host" "$KNOWN_HOSTS_FILE"; then
let counter++
echo "$host" >> "$KNOWN_HOSTS_FILE"
fi
done
echo $counter hosts added to $KNOWN_HOSTS_FILE
exit 0;