== setup/integrate a new machine ==

Note: this is partially obsolete now that we have [[puppet|howto/puppet-setup]].  We should probably update/rework some parts.

* install ssh if it isn't there already
{{{
    apt-get install ssh
}}}

* make apt sane
{{{
    echo 'Acquire::PDiffs "false";' > /etc/apt/apt.conf.d/local-pdiff
    echo 'APT::Install-Recommends 0;' > /etc/apt/apt.conf.d/local-recommends
}}}

* sane locales: (make sure there is _no_ locale defined in /etc/environment and /etc/default/locale)
{{{
   echo -n > /etc/environment
   echo -n > /etc/default/locale
}}}

* make debconf the same on every host: - dialog, - high
{{{
    apt-get install dialog &&
    echo "debconf debconf/priority        select high" | debconf-set-selections &&
    echo "debconf debconf/frontend        select Dialog" | debconf-set-selections
}}}

* setup [[puppet|howto/puppet-setup]]

* on draghi, add the host to /home/sshdist/.ssh/authorized_keys and generate.conf
(you want the host's rsa host key there: {{{cat /etc/ssh/ssh_host_rsa_key.pub}}})
{{{
    : :: draghi :: && sudo vi /home/sshdist/.ssh/authorized_keys
    : :: draghi :: && sudo vi /etc/userdir-ldap/generate.conf
}}}
* run generate, or wait until cron runs it for you
{{{
    : :: draghi :: && sudo -u sshdist ud-generate
}}}

* fix nsswitch for ud fu.  (you might have to restart sshd here)
{{{
    sed -i -e 's/^passwd:\[[:space:]]\+compat$/passwd:         compat db/;
              s/^group:\[[:space:]]\+compat$/group:          db compat/;
              s/^shadow:\[[:space:]]\+compat$/shadow:         compat db/' \
        /etc/nsswitch.conf
    (cd / && env -i /etc/init.d/ssh restart)
}}}

* install userdir-ldap
{{{
    apt-get update && apt-get install userdir-ldap
}}}

* on the host, run ud-replicate
{{{
    echo draghi.debian.org,draghi,db.debian.org,db,82.195.75.106,::ffff:82.195.75.106 ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAy1mAS0xIOZH9OrJZf1Wv9qYORv5Z5fmpF0o8Y4IMdS+ZzTjN1Sl8M77jaFTJbumJNs+n2CMcX8CoMemQEPBoRe20a5t3dExPQ3c7FNU0z+WIVFbu/oTTkAWGp5gCDwF3pg2QxUjqYc0X4jpv6pkisyvisij6V/VJ5G1hsIMuKqrCKYyyyiJJytfzSfRrBx2QvB5ZWQxhYeSYDoLDvuF31qUy4TLZ/HR3qZQ1cBrP9dCh5d+GQxdY9LuO6zjlnSyU64GHkyjYt3p03AKG4plD7WHX01bD0DQQ/NOFVwFhOZ63mePyridPuqBMFW39jBf4jSsewV95RE5VbY04+MY4XQ== root@draghi >> /etc/ssh/ssh_known_hosts &&
    ud-replicate
}}}

* check if it worked:
{{{
    id weasel
}}}

* install debian.org which brings you shells and much other fun
{{{
    apt-get install debian.org
}}}

* in /etc/ssh/sshd_config:
** disable the DSA hostkey, so that it only does RSA
** remove old host keys:
** disable X11 forwarding
** Tell it to use alternate authorized_keys locations
** maybe link root's auth key there:
{{{
    #| HostKey /etc/ssh/ssh_host_rsa_key
    #| X11Forwarding no
    #| AuthorizedKeysFile /etc/ssh/userkeys/%u
    #| AuthorizedKeysFile2 /var/lib/misc/userkeys/%u

    cd /etc/ssh/ && rm -f ssh_host_dsa_key ssh_host_dsa_key.pub ssh_host_key ssh_host_key.pub &&
    mkdir -p /etc/ssh/userkeys && ln -s /root/.ssh/authorized_keys /etc/ssh/userkeys/root &&
    sed -i -e 's/^HostKey.*_dsa_key/# &/;
               s/^X11Forwarding yes/X11Forwarding no/;
               $ a AuthorizedKeysFile /etc/ssh/userkeys/%u
               $ a AuthorizedKeysFile2 /var/lib/misc/userkeys/%u' sshd_config &&
    (cd / && env -i /etc/init.d/ssh restart)
}}}

* try to login using your user and ssh key.  you should get a homedir.

* try to become root using sudo.

* disable password auth with ssh (again: once you verified you can log in and become root using keys.)
{{{
    #vi /etc/ssh/sshd_config
    #  | PasswordAuthentication no

    sed -i -e 's/^PasswordAuthentication yes/PasswordAuthentication no/' /etc/ssh/sshd_config &&
    (cd / && env -i /etc/init.d/ssh restart)
}}}

* make ca-certificates sane:  (choose to *not* trust new certs, and we only want the spi cert activated)
{{{
    echo "ca-certificates ca-certificates/trust_new_crts  select no" | debconf-set-selections
    sed -i -e 's/^[^#!].*/!&/; s#^!spi-inc.org/spi-cacert-2008.crt#spi-inc.org/spi-cacert-2008.crt#' /etc/ca-certificates.conf
    dpkg-reconfigure ca-certificates
}}}

* Add debian-admin@debian.org to root in /etc/aliases
{{{
	if ! egrep '^root:' /etc/aliases > /dev/null; then
		echo "root: debian-admin@debian.org" >> /etc/aliases
	elif ! egrep '^root:.*debian-admin@debian.org' /etc/aliases > /dev/null; then
		sed -i -e 's/^root: .*/&, debian-admin@debian.org/' /etc/aliases
	fi
	newaliases
}}}

* sane default editor
{{{
    apt-get install vim && update-alternatives --set editor /usr/bin/vim.basic
}}}

* add to munin on spohr
{{{
    : :: spohr :: && sudo vi /etc/munin/munin.conf
}}}

* if it is a HP Proliant, or has other management fu, read [[howto/ilo-https]]

* edit dedication into in $DSA-PUPPET/modules/debian-org/misc/local.yaml

* add to nagios

* add host to ldap: ud-host -a $USER -h ....

-- weasel, Wed, 04 Jun 2008 20:52:56 +0200