1 files changed, 128 insertions, 0 deletions
diff --git a/post-install.sh b/post-install.sh
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+#!/bin/sh
+#
+# Post-installation script
+#
+# Copyright 2013 Guilhem Moulin <guilhem@fripost.org>
+#
+# Licensed under the GNU GPL version 3 or higher.
+
+set -ue
+
+find /home/ -mindepth 1 -maxdepth 1 -type d -print0 | xargs -r0 chmod og-rwx
+
+user="$(sed -rn '0,/^([^:]*):[^:]*:1000:.*/s//\1/p' /etc/passwd)"
+home="$(sed -rn '0,/^[^:]*:[^:]*:1000:[^:]*:[^:]*:([^:]*):.*/s//\1/p' /etc/passwd)"
+
+test -d "$home/.ssh" || mkdir -m 0700 "$home/.ssh"
+# TODO: make something more generic
+cat > "$home/.ssh/authorized_keys" << EOF
+ssh-rsa ...
+EOF
+chown -R "$user:$user" "$home/.ssh"
+chmod -R og-rwx "$home/.ssh"
+
+# Delete the automatically generated keys, and replace by our own
+rm /etc/ssh/ssh_host_*_key /etc/ssh/ssh_host_*_key.pub
+ssh-keygen -b 4096 -t rsa -N '' -C /etc/ssh/ssh_host_rsa_key -f /etc/ssh/ssh_host_rsa_key
+
+cat > /etc/ssh/sshd_config << EOF
+# What ports, IPs and protocols we listen for
+Port 22
+# Use these options to restrict which interfaces/protocols sshd will bind to
+#ListenAddress ::
+#ListenAddress 0.0.0.0
+Protocol 2
+# HostKeys for protocol version 2
+HostKey /etc/ssh/ssh_host_rsa_key
+#Privilege Separation is turned on for security
+UsePrivilegeSeparation yes
+
+# Lifetime and size of ephemeral version 1 server key
+KeyRegenerationInterval 3600
+ServerKeyBits 768
+
+# Logging
+SyslogFacility AUTH
+LogLevel INFO
+
+# Authentication:
+LoginGraceTime 120
+PermitRootLogin no
+DenyUsers *
+StrictModes yes
+
+RSAAuthentication yes
+PubkeyAuthentication yes
+#AuthorizedKeysFile     %h/.ssh/authorized_keys
+
+# Don't read the user's ~/.rhosts and ~/.shosts files
+IgnoreRhosts yes
+# For this to work you will also need host keys in /etc/ssh_known_hosts
+RhostsRSAAuthentication no
+# similar for protocol version 2
+HostbasedAuthentication no
+# Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication
+#IgnoreUserKnownHosts yes
+
+# To enable empty passwords, change to yes (NOT RECOMMENDED)
+PermitEmptyPasswords no
+
+# Change to yes to enable challenge-response passwords (beware issues with
+# some PAM modules and threads)
+ChallengeResponseAuthentication no
+
+# Change to no to disable tunnelled clear text passwords
+PasswordAuthentication no
+
+# Kerberos options
+#KerberosAuthentication no
+#KerberosGetAFSToken no
+#KerberosOrLocalPasswd yes
+#KerberosTicketCleanup yes
+
+# GSSAPI options
+#GSSAPIAuthentication no
+#GSSAPICleanupCredentials yes
+
+X11Forwarding no
+X11DisplayOffset 10
+PrintMotd no
+PrintLastLog yes
+TCPKeepAlive yes
+#UseLogin no
+
+#MaxStartups 10:30:60
+#Banner /etc/issue.net
+
+# Allow client to pass locale environment variables
+AcceptEnv LANG LC_*
+
+Subsystem sftp /usr/lib/openssh/sftp-server
+
+# Set this to 'yes' to enable PAM authentication, account processing,
+# and session processing. If this is enabled, PAM authentication will
+# be allowed through the ChallengeResponseAuthentication and
+# PasswordAuthentication.  Depending on your PAM configuration,
+# PAM authentication via ChallengeResponseAuthentication may bypass
+# the setting of "PermitRootLogin without-password".
+# If you just want the PAM account and session checks to run without
+# PAM authentication, then enable this but set PasswordAuthentication
+# and ChallengeResponseAuthentication to 'no'.
+UsePAM no
+EOF
+
+# TODO: the full list hangs
+#apt-get autoremove --purge \
+#    dictionaries-common \
+#    eject \
+#    ispell \
+#    laptop-detect \
+#    nano \
+#    tasksel \
+#    wamerican \
+#    wbritish \
+#|| true
+
+sudo update-alternatives --set editor /usr/bin/vim.nox
+
+# TODO: initramfs