Openssl, make multi DNS certificat
openssl req -new -sha256 -key domain.key -subj "/C=US/ST=CA/O=Acme, Inc./CN=example.com" -reqexts SAN -config <(cat /etc/ssl/openssl.cnf <(printf "[SAN]\nsubjectAltName=DNS:example.com,DNS:www.example.com")) -out domain.csr
Debian Netinstallation
https://www.debian.org/releases/stable/i386/ch04s05.html.en
AUtofs sample conf
dir -fstype=nfs,rw,bg,hard,retrans=1000,vers=4,proto=tcp,nosuid,nodev,intr host:/mount/point
Soft RAID
mdadm --detail --scan > /etc/mdadm.conf