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linux-cheat-sheet.md

How do I get ssh-agent to work in all terminals?

export SSH_AUTH_SOCK=~/.ssh/ssh-agent.$HOSTNAME.sock
ssh-add -l 2>/dev/null >/dev/null
if [ $? -ge 2 ]; then
  ssh-agent -a "$SSH_AUTH_SOCK" >/dev/null
fi

How do I configure the search domain correctly?

# /etc/systemd/resolved.conf
[Resolve]
DNS=X.Y.Z.W
Domains=x.y.z.pl
service systemd-resolved restart
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