cd /
;
apropos
;
find *
;
less /var/log/prx
;
The script below will encrypt all incoming emails with gpg, as long as you own your public key (of course you do).
It just require mblaze
https://github.com/leahneukirchen/mblaze
First, set up a .forward file on your server home:
echo "|/usr/local/bin/encrypt-mail.sh -r you@domain.tld" > ~/.forward chmod 600 ~/.forward
Copy in /usr/local/bin/encrypt-mail.sh :
#!/bin/sh -x # encrypt incoming mail # Require mblaze # # "Initial setup:\n" # "echo "|/usr/local/bin/encrypt-mail.sh" > ~/.forward\n" # "chmod 600 ~/.forward\n" usage() { printf "usage: $0 [-r email@domain.tld] [-h]\n" printf " -h: show this help\n" printf " -r: set recipient email, default to user@hostname\n" printf "---\n" exit 1 } # default user email recipient="$(whoami)@$(hostname)" while getopts 'r:h' c do case $c in h) usage ;; r) recipient="${OPTARG}" ;; esac done tmpcryptd="$(mktemp -d -t mencrypt.XXXXXXXXXX)" tmpplainmsg="$(mktemp -t msg.XXXXXXXXXX)" trap "rm -rf ${tmpcryptd} ${tmpplainmsg}" INT TERM EXIT # check if Maildir/new is here d="$HOME/Maildir/new" test ! -d "${d}" && mkdir -p "${d}" # create a path to a new email # format: # gettimeofday().uniqu-id.gethostname() timeofday="$(date +%s)" uniq_id="$$" myhostname="$(hostname | sed -e 's;/;\\057;' -e 's;:;\\072;g')" new_mail_filename="$HOME/Maildir/new/${timeofday}.${uniq_id}.${myhostname}" cat > "${tmpplainmsg}" # check if already encrypted mhdr -h Content-Type - < "${tmpplainmsg}" |\ grep -q "multipart/encrypted" if [ $? -eq 0 ]; then mv "${tmpplainmsg}" "${new_mail_filename}" exit fi # from here, message is unencrypted, so call gpg { # print all after header, set mime and encrypt awk '/^$/,0' "${tmpplainmsg}" |\ mmime |\ gpg --output "${tmpcryptd}/msg.asc" --encrypt --armor --recipient "${recipient}" || exit $? printf "Version: 1\n" > "${tmpcryptd}/version" { awk '1 {print} /^$/ {exit}' "${tmpplainmsg}" printf "#application/pgp-encrypted %s/version\n" "${tmpcryptd}" printf "#application/octet-stream %s/msg.asc\n" "${tmpcryptd}" } |\ mmime -t 'multipart/encrypted; protocol="application/pgp-encrypted"' } > "${new_mail_filename}" exit $?