# install
sudo apt-get install ubuntu-mate-desktop

# reset panel
mate-panel --reset

# configuration
https://github.com/vinadoros/CustomScripts/blob/master/DMATE.sh

gsettings set org.mate.caja.preferences default-folder-viewer 'list-view'

# Caja bookmarks
~/.gtk-bookmarks

{% for host in groups['db_servers'] %}
{{ host }}
{{ hostvars[host]['ansible_eth0']['ipv4']['address'] }}
{% endfor %}

{% elif student.department.upper() != "MATHS DEPARTMENT" %}
Maths department
{% endif %}

# generate SSH config
{% for host in groups['vm.example.com'] %}
Host {{ host }}
Hostname {{ hostvars[host]['ansible_eth0']['ipv4']['address'] }}
{% endfor %}

# value by group (condition)
{% if 'www' in group_names and ansible_fqdn in groups['www'] %}
foo=true
{% else %}
foo=false
{% endif %}

{% if 'index.html' in request.build_absolute_uri %}

openssl \
req \
-nodes \
-newkey rsa:2048 \
-keyout www.example.com.key \
-out www.example.com.csr \
-subj "/C=DE/ST=NRW/L=Berlin/O=My Inc/OU=DevOps/CN=www.example.com/emailAddress=dev@www.example.com"

a2enmod ssl
a2ensite default-ssl
service apache2 restart

cp /tmp/2_*.crt /etc/ssl/certs/
cp /tmp/1_root_bundle.crt /etc/ssl/certs/
cp /tmp/*.key /etc/ssl/private/

/etc/apache2/sites-enabled/default-ssl.conf
SSLEngine on
SSLProtocol all -SSLv2 -SSLv3
SSLCipherSuite ALL:!DH:!EXPORT:!RC4:+HIGH:+MEDIUM:!LOW:!aNULL:!eNULL

# check certificate
https://www.ssllabs.com/ssltest/analyze.html
http://www.panticz.de/Check-SSL-TLS-server-encryption-support

# determine SSL certificate expiration date
openssl x509 -enddate -noout -in www.example.com.pem

# list certificate domains
cat cert.pem | openssl x509 -text | grep DNS
openssl s_client -showcerts -connect www.example.com:443 | openssl x509 -text | grep DNS

# Letsencrypt
http://www.panticz.de/letsencrypt

# remove password from private key
openssl rsa -in www.example.key.pass -out www.example.key

# cat / deploy certificate to remote host

# mount the btrfs root subvolume
mount /dev/sda1 /mnt -o subvol=/

# (optional) set the default subvolume
btrfs sub set @ /mnt

mount /proc /mnt/proc --bind
mount /dev /mnt/dev --bind
mount /sys /mnt/sys --bind

chroot /mnt

grub-install /dev/sda
update-grub /dev/sda

# activate first partition
fdisk -l /dev/sda

<?php
$URL="https://raw.githubusercontent.com/panticz/scripts/master/compile.squid.with.ssl.support.sh";
echo "wget -q --no-check-certificate $URL -O - | bash -s";
echo "

";
$c = curl_init();
curl_setopt($c, CURLOPT_URL, $URL);
curl_setopt($c, CURLOPT_RETURNTRANSFER, 1);
echo htmlspecialchars(curl_exec($c));
curl_close($c);
echo "

";
?>

Install packages
apt-get install logrotate
dpkg -i *.deb
apt-get install -f

Test configuration
# squid3 -v
Squid Cache: Version 3.4.8
configure options: '--build=x86_64-linux-gnu' '--prefix=/usr' '--includedir=${prefix}/include' '--mandir=${prefix}/share/man' '--infodir=${prefix}/share/info' '--sysconfdir=/etc' '--localstatedir=/var' '--libexecdir=${prefix}/lib/squid3' '--srcdir=.' '--disable-maintainer-mode' '--disable-dependency-tracking' '--disable-silent-rules' '--datadir=/usr/share/squid3' '--sysconfdir=/etc/squid3' '--mandir=/usr/share/man' '--enable-inline' '--disable-arch-native' '--enable-async-io=8' '--enable-storeio=ufs,aufs,diskd,rock' '--enable-removal-policies=lru,heap' '--enable-delay-pools' '--enable-cache-digests' '--enable-icap-client' '--enable-follow-x-forwarded-for' '--enable-auth-basic=DB,fake,getpwnam,LDAP,MSNT,MSNT-multi-domain,NCSA,NIS,PAM,POP3,RADIUS,SASL,SMB' '--enable-auth-digest=file,LDAP' '--enable-auth-negotiate=kerberos,wrapper' '--enable-auth-ntlm=fake,smb_lm' '--enable-external-acl-helpers=file_userip,kerberos_ldap_group,LDAP_group,session,SQL_session,unix_group,wbinfo_group' '--enable-url-rewrite-helpers=fake' '--enable-eui' '--enable-esi' '--enable-icmp' '--enable-zph-qos' '--enable-ecap' '--disable-translation' '--with-swapdir=/var/spool/squid3' '--with-logdir=/var/log/squid3' '--with-pidfile=/var/run/squid3.pid' '--with-filedescriptors=65536' '--with-large-files' '--with-default-user=proxy' '--enable-ssl' '--with-open-ssl=/etc/ssl/openssl.cnf' '--enable-linux-netfilter' 'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -fPIE -fstack-protector-strong -Wformat -Werror=format-security -Wall' 'LDFLAGS=-fPIE -pie -Wl,-z,relro -Wl,-z,now' 'CPPFLAGS=-D_FORTIFY_SOURCE=2' 'CXXFLAGS=-g -O2 -fPIE -fstack-protector-strong -Wformat -Werror=format-security'

Links
http://ubuntuforums.org/showthread.php?t=2171061

<?php
$URL="https://raw.githubusercontent.com/panticz/preseed/master/pxe/scripts/create.network.install.iso.sh";
echo "wget -q --no-check-certificate $URL -O - | bash -s";
echo "

";
$c = curl_init();
curl_setopt($c, CURLOPT_URL, $URL);
curl_setopt($c, CURLOPT_RETURNTRANSFER, 1);
echo htmlspecialchars(curl_exec($c));
curl_close($c);
echo "

";
?>

<?php
$URL="https://raw.githubusercontent.com/panticz/lxc/master/create_ubuntu_xenial.sh";
echo "wget -q --no-check-certificate $URL -O - | bash -s";
echo "

";
$c = curl_init();
curl_setopt($c, CURLOPT_URL, $URL);
curl_setopt($c, CURLOPT_RETURNTRANSFER, 1);
echo htmlspecialchars(curl_exec($c));
curl_close($c);
echo "

";
?>

Allow root SSH login with password
sed -i 's|PermitRootLogin without-password|PermitRootLogin yes|' /etc/ssh/sshd_config
sed -i 's|PasswordAuthentication no|PasswordAuthentication yes|' /etc/ssh/sshd_config
service ssh restart