From: Ian Kelling <ian@iankelling.org>
Date: Wed, 26 Apr 2017 14:59:02 +0000 (-0700)
Subject: merge scripts, add lets encrypt
X-Git-Url: https://iankelling.org/git/?a=commitdiff_plain;h=6761d31c8b47efb9361c0d8b69eda24da97769fa;p=basic-https-conf

merge scripts, add lets encrypt
---

diff --git a/README b/README
index f4de843..21d18a7 100644
--- a/README
+++ b/README
@@ -1,8 +1,7 @@
-apache/nginx site automation
+apache/nginx config & let's encrypt
 
-Uses let's encrypt's https settings, plus a small bit of extra settings,
-and accepts site specific settings in stdin. More focused on apache,
-nginx is missing some features in the apache script.
+The main documentation is availiable via --help and near the top of the
+bash script file next to this file.
 
 Please email me if you have a patches, bugs, feedback, or republish this
 somewhere else: Ian Kelling <ian@iankelling.org>.
diff --git a/apache-site b/apache-site
deleted file mode 100755
index 8ff08b8..0000000
--- a/apache-site
+++ /dev/null
@@ -1,277 +0,0 @@
-#!/bin/bash
-# Copyright (C) 2016 Ian Kelling
-
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-
-#     http://www.apache.org/licenses/LICENSE-2.0
-
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-[[ $EUID == 0 ]] || exec sudo -E "$BASH_SOURCE" "$@"
-
-set -eE -o pipefail
-trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
-
-shopt -s nullglob # used in apache config file expansion
-
-usage() {
-    cat <<EOF
-Usage: ${0##*/} [OPTIONS] [EXTRA_SETTINGS_FILE] DOMAIN
-Setup apache virtualhost config with https using
-ssl config provided by let's encrypt and my standard
-location for storing certs.
-
-EXTRA_SETTINGS_FILE can be - for stdin
--c CERT_DIR       In priority: this arg, $ACME_TINY_WRAPPER_CERT_DIR,
-                  $HOME/webservercerts, if the other options aren't set.
--f [ADDR:]PORT    Enable proxy to [ADDR:]PORT. ADDR default is 127.0.0.1
--i                Insecure, no ssl
--p PORT           Main port to listen on, default 443. 80 implies -i.
--r DIR            DocumentRoot
--h|--help         Print help and exit
-
-Note: Uses GNU getopt options parsing style
-EOF
-    exit $1
-}
-
-##### begin command line parsing ########
-
-cert_dir="$ACME_TINY_WRAPPER_CERT_DIR"
-if [[ ! $cert_dir ]]; then
-    cert_dir=$HOME/webservercerts
-fi
-ssl=true
-extra_settings=
-port=443
-temp=$(getopt -l help ic:f:p:r:h "$@") || usage 1
-eval set -- "$temp"
-while true; do
-    case $1 in
-        -c) cert_dir="$2"; shift 2 ;;
-        -f) proxy="$2"; shift 2 ;;
-        -i) ssl=false; shift ;;
-        -p) port="$2"; shift 2 ;;
-        -r) root="$2"; shift 2 ;;
-        --) shift; break ;;
-        -h|--help) usage ;;
-        *) echo "$0: Internal error!" ; exit 1 ;;
-    esac
-done
-
-if (( ${#@} == 2 )); then
-    read -r extra_settings h <<<"${@}"
-else
-    read -r h <<<"${@}"
-fi
-
-if [[ ! $h ]]; then
-    echo "$0: error: expected domain arg"
-    usage 1
-fi
-
-if [[ ! $root ]]; then
-    root=/var/www/$h/html
-fi
-
-if [[ $proxy ]]; then
-    [[ $proxy == *:* ]] || proxy=127.0.0.1:$proxy
-fi
-
-
-##### end command line parsing ########
-
-# taken from the let's encrypt generated site, using
-# ./certbot-auto --apache (should use the test mode to check if there are updates)
-# on 5/29/2016
-
-# I could have also used the mozilla generator this, but it had some open issues
-# with no response
-# so I figured I would check out let's encrypt.
-# It's a little more liberal, but still get's an A in ssl labs,
-# so, meh, I'll use it.
-# https://mozilla.github.io/server-side-tls/ssl-config-generator/
-
-
-rm -f /etc/apache2/sites-enabled/000-default.conf
-
-mkdir -p $root
-vhost_file=/etc/apache2/sites-enabled/$h.conf
-redir_file=/etc/apache2/sites-enabled/httpsredir.conf
-
-# note, we exepct ServerRoot of /etc/apache2
-# apache requires exactly 1 listen directive per port (when no ip is also given),
-# so we have to parse the config to do it programatically.
-listen_80=false
-listen_port=false
-cd /etc/apache2
-conf_files=(apache2.conf)
-
-
-if [[ $port == 80 ]]; then
-    ssl=false
-    # remove any thats hanging around
-    rm -f $redir_file
-fi
-
-for (( i=0; i < ${#conf_files[@]}; i++ )); do
-    f="${conf_files[i]}"
-    # note: globs are expanded here.
-    conf_files+=( $(sed -rn "s,^\s*Include(Optional)?\s+(\S+).*,\2,p" "$f") )
-    case $(readlink -f "$f") in
-        $vhost_file|$redir_file) continue ;;
-    esac
-    for p in $(sed -rn "s,^\s*listen\s+(\S+).*,\1,Ip" "$f"); do
-        case $p in
-            80) listen_80=true ;;
-            $port) listen_port=true ;;
-        esac
-    done
-done
-
-if $ssl; then
-    https_arg=" https"
-fi
-
-
-echo "$0: creating $vhost_file"
-cat >$vhost_file <<EOF
-<VirtualHost *:$port>
-        ServerName $h
-        ServerAlias www.$h
-        DocumentRoot $root
-EOF
-
-if [[ $extra_settings ]]; then
-    cat -- $extra_settings >>$vhost_file
-fi
-
-# go faster!
-if [[ -e /etc/apache2/mods-available/http2.load ]]; then
-    # https://httpd.apache.org/docs/2.4/mod/mod_http2.html
-    a2enmod http2
-    cat >>$vhost_file <<EOF
-        Protocols h2 http/1.1
-EOF
-fi
-
-if [[ $proxy ]]; then
-    a2enmod proxy proxy_http
-    # fyi: trailing slash is important
-    # reference: https://httpd.apache.org/docs/2.4/howto/reverse_proxy.html
-    cat >>$vhost_file <<EOF
-        ProxyPass "/"  "http://$proxy/"
-        ProxyPassReverse "/"  "http://$proxy/"
-EOF
-fi
-
-
-
-if $ssl; then
-    certbot_ssl_conf=/etc/apache2/apache-site-ssl.conf
-    cat >>$vhost_file <<EOF
-        SSLCertificateFile $cert_dir/$h-chained.pem
-        SSLCertificateKeyFile $cert_dir/$h-domain.key
-        Include $certbot_ssl_conf
-EOF
-
-    # if we are using a non-standard port, setup don't setup
-    # irrelevant 443 redirect.
-    if [[ $port == "443" ]]; then
-        echo "$0: creating $redir_file"
-        cat >$redir_file <<'EOF'
-# vhost_combined with %D (request time in microseconds)
-# this file is just a convenient place to drop it.
-LogFormat "%v:%p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\" %D" vhost_time_combined
-<VirtualHost *:80>
-        ServerAdmin webmaster@localhost
-        DocumentRoot /var/www/html
-
-        ErrorLog ${APACHE_LOG_DIR}/error.log
-        CustomLog ${APACHE_LOG_DIR}/httpsredir-access.log combined
-
-RewriteEngine on
-# ian: removed so it's for all sites
-#RewriteCond %{SERVER_NAME} =certbot.iank.bid
-RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]
-</VirtualHost>
-EOF
-        if ! $listen_80; then
-            cat >>$redir_file <<'EOF'
-Listen 80
-EOF
-        fi
-    fi
-
-    mkdir -p /etc/letsencrypt
-
-    # this is from cerbot, see below.
-    echo "$0: creating $certbot_ssl_conf"
-    cat >$certbot_ssl_conf <<'EOF'
-# Baseline setting to Include for SSL sites
-
-SSLEngine on
-
-# Intermediate configuration, tweak to your needs
-SSLProtocol             all -SSLv2 -SSLv3
-SSLCipherSuite          ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA
-SSLHonorCipherOrder     on
-SSLCompression          off
-
-SSLOptions +StrictRequire
-
-# Add vhost name to log entries:
-LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-agent}i\"" vhost_combined
-LogFormat "%v %h %l %u %t \"%r\" %>s %b" vhost_common
-
-#CustomLog /var/log/apache2/access.log vhost_combined
-#LogLevel warn
-#ErrorLog /var/log/apache2/error.log
-
-# Always ensure Cookies have "Secure" set (JAH 2012/1)
-#Header edit Set-Cookie (?i)^(.*)(;\s*secure)??((\s*;)?(.*)) "$1; Secure$3$4"
-EOF
-
-    upstream=https://github.com/certbot/certbot/raw/master/certbot-apache/certbot_apache/options-ssl-apache.conf
-    if ! diff -c <(wget -q -O - $upstream) $certbot_ssl_conf; then
-        cat <<EOF
-WARNING!!!!!!!!!
-WARNING!!!!!!!!!
-WARNING!!!!!!!!!
-WARNING!!!!!!!!!
-WARNING!!!!!!!!!
-upstream ssl settings differ from the snapshot we have taken!!!
-We diffed with this command:
-diff -c <(wget -q -O - $upstream) $certbot_ssl_conf
-Update this script to take care this warning!!!!!
-EOF
-        sleep 1
-    fi
-fi # end if $ssl
-
-cat >>$vhost_file <<EOF
-        ErrorLog \${APACHE_LOG_DIR}/error.log
-        CustomLog \${APACHE_LOG_DIR}/access.log vhost_time_combined
-</VirtualHost>
-EOF
-
-if ! $listen_port; then
-    # reference: https://httpd.apache.org/docs/2.4/mod/mpm_common.html#listen
-    cat >>$vhost_file <<EOF
-listen ${port}${https_arg}
-EOF
-fi
-
-
-a2enmod ssl rewrite # rewrite needed for httpredir
-service apache2 restart
-
-# I rarely look at how much traffic I get, so let's keep that info
-# around for longer than the default of 2 weeks.
-sed -ri --follow-symlinks 's/^(\s*rotate\s).*/\1 365/' /etc/logrotate.d/apache2
diff --git a/nginx-site b/nginx-site
deleted file mode 100755
index addd1d4..0000000
--- a/nginx-site
+++ /dev/null
@@ -1,163 +0,0 @@
-#!/bin/bash
-# Copyright (C) 2016 Ian Kelling
-
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-
-#     http://www.apache.org/licenses/LICENSE-2.0
-
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-[[ $EUID == 0 ]] || exec sudo -E "$BASH_SOURCE" "$@"
-
-set -eE -o pipefail
-trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
-
-
-usage() {
-    cat <<EOF
-Usage: ${0##*/} [OPTIONS] [EXTRA_SETTINGS_FILE] DOMAIN
-Note: this is less tested and mature than the apache site script.
-
-Setup nginx config with https using
-ssl config provided by let's encrypt and my standard
-location for storing certs.
-
-EXTRA_SETTINGS_FILE can be - for stdin
--c CERT_DIR       In priority: this arg, $ACME_TINY_WRAPPER_CERT_DIR,
-                  $HOME/webservercerts, if the other options aren't set.
--f [ADDR:]PORT    Enable proxy to [ADDR:]PORT. ADDR default is 127.0.0.1
--p PORT           Port to listen on, default 443
--r DIR            DocumentRoot
--h|--help         Print help and exit
-
-TODO: add https redir site.
-
-Note: Uses GNU getopt options parsing style
-EOF
-    exit $1
-}
-
-##### begin command line parsing ########
-
-cert_dir="$ACME_TINY_WRAPPER_CERT_DIR"
-if [[ ! $cert_dir ]]; then
-    cert_dir=$HOME/webservercerts
-fi
-port=443
-extra_settings=
-temp=$(getopt -l help: c:f:p:r:h "$@") || usage 1
-eval set -- "$temp"
-while true; do
-    case $1 in
-        -c) cert_dir="$2"; shift 2 ;;
-        -f) proxy="$2"; shift 2 ;;
-        -p) port="$2"; shift 2 ;;
-        -r) root="$2"; shift 2 ;;
-        --) shift; break ;;
-        -h|--help) usage ;;
-        *) echo "$0: Internal error!" ; exit 1 ;;
-    esac
-done
-
-if (( ${#@} == 2 )); then
-    read -r extra_settings h <<<"${@}"
-else
-    read -r h <<<"${@}"
-fi
-
-if [[ ! $h ]]; then
-    echo "$0: error: expected domain arg"
-    usage 1
-fi
-
-if [[ ! $root ]]; then
-    root=/var/www/$h/html
-fi
-
-if [[ $proxy ]]; then
-    [[ $proxy == *:* ]] || proxy=127.0.0.1:$proxy
-fi
-
-
-##### end command line parsing ########
-
-rm -f /etc/nginx/sites-enabled/default
-
-if nginx -V |& grep -- '--with-http_v2_module\b' &>/dev/null; then
-    http2_arg=http2
-fi
-
-echo "$0: creating /etc/nginx/sites-enabled/$h.conf"
-cat >/etc/nginx/sites-enabled/$h.conf <<EOF
-# ssecurty settings taken from
-# https://mozilla.github.io/server-side-tls/ssl-config-generator/
-# using modern config. last checked 2017/2/20
-server {
-    server_name $h www.$h;
-    root $root;
-    listen $port ssl $http2_arg;
-    listen [::]:$port ssl $http2_arg;
-
-    # certs sent to the client in SERVER HELLO are concatenated in ssl_certificate
-    ssl_certificate $cert_dir/$h-chained.pem;
-    ssl_certificate_key $cert_dir/$h-domain.key;
-    ssl_session_timeout 1d;
-    ssl_session_cache shared:SSL:50m;
-    ssl_session_tickets off;
-
-    # Diffie-Hellman parameter for DHE ciphersuites, recommended 2048 bits
-    ssl_dhparam $cert_dir/dh2048.pem;
-
-    # modern configuration. tweak to your needs.
-    ssl_protocols TLSv1.2;
-    ssl_ciphers 'ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256';
-    ssl_prefer_server_ciphers on;
-
-    # HSTS (ngx_http_headers_module is required) (15768000 seconds = 6 months)
-    add_header Strict-Transport-Security max-age=15768000;
-
-    # OCSP Stapling ---
-    # fetch OCSP records from URL in ssl_certificate and cache them
-    ssl_stapling on;
-    ssl_stapling_verify on;
-
-    # ian: todo: something is missing here, stapling is not enabled
-    # per ssllabs.com test. need to put root cert in chain?.
-    # ssl labs still says we are A+.
-    # https://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_stapling
-    ## verify chain of trust of OCSP response using Root CA and Intermediate certs
-    ssl_trusted_certificate $cert_dir/$h-chained.pem;
-
-    # ian: left commented out, our local dns is expected to work fine.
-    #resolver <IP DNS resolver>;
-EOF
-if [[ $extra_settings ]]; then
-    cat $extra_settings >>/etc/nginx/sites-enabled/$h.conf
-fi
-
-if [[ $proxy ]]; then
-    cat >>/etc/nginx/sites-enabled/$h.conf <<EOF
-    location / {
-        proxy_set_header Host \$host;
-        proxy_set_header X-Real-IP \$remote_addr;
-        proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
-        proxy_set_header X-Forwarded-Ssl on;
-        proxy_set_header X-Forwarded-Port $port;
-        proxy_pass http://$proxy;
-    }
-EOF
-fi
-
-
-cat >>/etc/nginx/sites-enabled/$h.conf <<EOF
-}
-EOF
-mkdir -p /var/www/$h/html
-chown -R ian:ian /var/www/$h
-service nginx restart
diff --git a/web-conf b/web-conf
new file mode 100755
index 0000000..b953668
--- /dev/null
+++ b/web-conf
@@ -0,0 +1,376 @@
+#!/bin/bash
+# Copyright (C) 2016 Ian Kelling
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[[ $EUID == 0 ]] || exec sudo -E "$BASH_SOURCE" "$@"
+
+set -eE -o pipefail
+trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
+
+shopt -s nullglob # used in apache config file expansion
+
+usage() {
+    cat <<EOF
+Usage: ${0##*/} [OPTIONS] [EXTRA_SETTINGS_FILE] apache2|nginx DOMAIN
+apache/nginx config & let's encrypt
+
+If using tls then it expects certbot to be installed and in PATH.
+
+
+EXTRA_SETTINGS_FILE can be - for stdin
+-e EMAIL          Contact address for let's encrypt. Default is
+                  root@\$(hostname -A|awk '{print $1}')
+                  which is root@$(hostname -A|awk '{print $1}') on this host.
+-f [ADDR:]PORT    Enable proxy to [ADDR:]PORT. ADDR default is 127.0.0.1
+-i                Insecure, no ssl. Not implemented for nginx.
+-p PORT           Main port to listen on, default 443. 80 implies -i.
+-r DIR            DocumentRoot
+-h|--help         Print help and exit
+
+Note: Uses GNU getopt options parsing style
+EOF
+    exit $1
+}
+
+##### begin command line parsing ########
+
+ssl=true
+extra_settings=
+port=443
+temp=$(getopt -l help e:i:f:p:r:h "$@") || usage 1
+eval set -- "$temp"
+while true; do
+    case $1 in
+        -e) email="$2"; shift 2 ;;
+        -f) proxy="$2"; shift 2 ;;
+        -i) ssl=false; shift ;;
+        -p) port="$2"; shift 2 ;;
+        -r) root="$2"; shift 2 ;;
+        --) shift; break ;;
+        -h|--help) usage ;;
+        *) echo "$0: Internal error!" ; exit 1 ;;
+    esac
+done
+
+if (( ${#@} == 3 )); then
+    read -r extra_settings t h <<<"${@}"
+else
+    read -r t h <<<"${@}"
+fi
+
+case $t in
+    apache2|nginx) : ;;
+    *) echo "$0: error: expected apache2 or nginx arg"; usage 1 ;;
+esac
+
+if [[ ! $h ]]; then
+    echo "$0: error: expected domain and type arg"
+    usage 1
+fi
+
+if [[ ! $root ]]; then
+    root=/var/www/$h/html
+fi
+
+if [[ $proxy ]]; then
+    [[ $proxy == *:* ]] || proxy=127.0.0.1:$proxy
+fi
+
+if [[ ! $email ]]; then
+    email=root@$(hostname -A|awk '{print $1}')
+fi
+
+
+##### end command line parsing ########
+
+se=/etc/$t/sites-enabled
+cert_dir=/etc/letsencrypt/live/$h
+
+mkdir -p $root
+vhost_file=$se/$h.conf
+redir_file=$se/$h-redir.conf
+
+if [[ $port == 80 ]]; then
+    ssl=false
+    # remove any thats hanging around
+    rm -f $redir_file
+fi
+
+
+if $ssl; then
+    f=$cert_dir/fullchain.pem
+    if [[ ! -e $f ]] || openssl x509 -checkend 86400 -noout -in $f; then
+        $0 -p 80 $t $h
+        # adds every security option
+        certbot certonly -n --hsts --staple-ocsp --uir --must-staple  --email $email --staple-ocsp --no-self-upgrade --agree-tos --apache -d $h
+        rm $vhost_file
+    fi
+fi
+
+
+if [[ $t == apache2 ]]; then
+    rm -f $se/000-default.conf
+    # note, we exepct ServerRoot of /etc/apache2
+    # apache requires exactly 1 listen directive per port (when no ip is also given),
+    # so we have to parse the config to do it programatically.
+    listen_80=false
+    listen_port=false
+    cd /etc/apache2
+    conf_files=(apache2.conf)
+
+
+    for (( i=0; i < ${#conf_files[@]}; i++ )); do
+        f="${conf_files[i]}"
+        # note: globs are expanded here.
+        conf_files+=( $(sed -rn "s,^\s*Include(Optional)?\s+(\S+).*,\2,p" "$f") )
+        case $(readlink -f "$f") in
+            $vhost_file|$redir_file) continue ;;
+        esac
+        echo "$f"
+        for p in $(sed -rn "s,^\s*listen\s+(\S+).*,\1,Ip" "$f"); do
+            case $p in
+                80) listen_80=true ;;&
+                $port) listen_port=true ;;
+            esac
+        done
+    done
+
+
+    cat >$vhost_file <<EOF
+<VirtualHost *:$port>
+        ServerName $h
+        ServerAlias www.$h
+        DocumentRoot $root
+EOF
+
+    if [[ $extra_settings ]]; then
+        cat -- $extra_settings >>$vhost_file
+    fi
+
+    # go faster!
+    if [[ -e /etc/apache2/mods-available/http2.load ]]; then
+        # https://httpd.apache.org/docs/2.4/mod/mod_http2.html
+        a2enmod http2
+        cat >>$vhost_file <<EOF
+        Protocols h2 http/1.1
+EOF
+    fi
+
+    if [[ $proxy ]]; then
+        a2enmod proxy proxy_http
+        # fyi: trailing slash is important
+        # reference: https://httpd.apache.org/docs/2.4/howto/reverse_proxy.html
+        cat >>$vhost_file <<EOF
+        ProxyPass "/"  "http://$proxy/"
+        ProxyPassReverse "/"  "http://$proxy/"
+EOF
+    fi
+
+
+
+    if $ssl; then
+        https_arg=" https"
+        common_ssl_conf=/etc/apache2/common-ssl.conf
+        cat >>$vhost_file <<EOF
+        SSLCertificateFile $cert_dir/fullchain.pem
+        SSLCertificateKeyFile $cert_dir/privkey.pem
+        Include $common_ssl_conf
+        # From cerbot generated config example, taken 4/2017,
+        # should be rechecked once a year or so.
+        Header always set Strict-Transport-Security "max-age=31536000"
+        SSLUseStapling on
+        Header always set Content-Security-Policy upgrade-insecure-requests
+EOF
+
+        cat >/etc/apache2/conf-enabled/local-custom.conf <<'EOF'
+# vhost_combined with %D (request time in microseconds)
+# this file is just a convenient place to drop it.
+LogFormat "%v:%p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\" %D" vhost_time_combined
+SSLStaplingCache shmcb:/var/run/apache2/stapling_cache(128000)
+EOF
+
+        echo "$0: creating $redir_file"
+        cat >$redir_file <<EOF
+<VirtualHost *:80>
+        ServerName $h
+        ServerAdmin webmaster@localhost
+        DocumentRoot /var/www/html
+
+        ErrorLog \${APACHE_LOG_DIR}/error.log
+        CustomLog \${APACHE_LOG_DIR}/access.log vhost_time_combined
+
+        RewriteEngine on
+        RewriteCond %{SERVER_NAME} =$h
+        RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]
+</VirtualHost>
+EOF
+        if ! $listen_80; then
+            cat >>$redir_file <<'EOF'
+Listen 80
+EOF
+        fi
+
+        # this is a copy of a file certbot, see below.
+        echo "$0: creating $common_ssl_conf"
+        cat >$common_ssl_conf <<'EOF'
+# Baseline setting to Include for SSL sites
+
+SSLEngine on
+
+# Intermediate configuration, tweak to your needs
+SSLProtocol             all -SSLv2 -SSLv3
+SSLCipherSuite          ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA
+SSLHonorCipherOrder     on
+SSLCompression          off
+
+SSLOptions +StrictRequire
+
+# Add vhost name to log entries:
+LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-agent}i\"" vhost_combined
+LogFormat "%v %h %l %u %t \"%r\" %>s %b" vhost_common
+
+#CustomLog /var/log/apache2/access.log vhost_combined
+#LogLevel warn
+#ErrorLog /var/log/apache2/error.log
+
+# Always ensure Cookies have "Secure" set (JAH 2012/1)
+#Header edit Set-Cookie (?i)^(.*)(;\s*secure)??((\s*;)?(.*)) "$1; Secure$3$4"
+EOF
+
+        upstream=https://github.com/certbot/certbot/raw/master/certbot-apache/certbot_apache/options-ssl-apache.conf
+        if ! diff -c <(wget -q -O - $upstream) $common_ssl_conf; then
+            cat <<EOF
+WARNING!!!!!!!!!
+WARNING!!!!!!!!!
+WARNING!!!!!!!!!
+WARNING!!!!!!!!!
+WARNING!!!!!!!!!
+upstream ssl settings differ from the snapshot we have taken!!!
+We diffed with this command:
+diff -c <(wget -q -O - $upstream) $common_ssl_conf
+Update this script to take care this warning!!!!!
+EOF
+            sleep 1
+        fi
+    fi # end if $ssl
+
+    cat >>$vhost_file <<'EOF'
+        ErrorLog ${APACHE_LOG_DIR}/error.log
+        CustomLog ${APACHE_LOG_DIR}/access.log vhost_time_combined
+</VirtualHost>
+EOF
+
+    if ! $listen_port; then
+        # reference: https://httpd.apache.org/docs/2.4/mod/mpm_common.html#listen
+        cat >>$vhost_file <<EOF
+listen ${port}${https_arg}
+EOF
+    fi
+
+
+    a2enmod ssl rewrite # rewrite needed for httpredir
+    service apache2 restart
+
+    # I rarely look at how much traffic I get, so let's keep that info
+    # around for longer than the default of 2 weeks.
+    sed -ri --follow-symlinks 's/^(\s*rotate\s).*/\1 365/' /etc/logrotate.d/apache2
+fi  ###### end if apache
+
+if [[ $t == nginx ]]; then
+    common_ssl_conf=/etc/nginx/common-ssl.conf
+
+    rm -f $se/default
+    cd /etc/nginx
+    [[ -e dh2048.pem ]] || openssl dhparam -out dh2048.pem 2048
+
+    if nginx -V |& grep -- '--with-http_v2_module\b' &>/dev/null; then
+        http2_arg=http2
+    fi
+
+    cat >$common_ssl_conf <<'EOF'
+# let's encrypt gives us a bad nginx config, so use this:
+# https://mozilla.github.io/server-side-tls/ssl-config-generator/
+# using modern config. last checked 2017/4/22
+ssl_session_timeout 1d;
+ssl_session_cache shared:SSL:50m;
+ssl_session_tickets off;
+
+# Diffie-Hellman parameter for DHE ciphersuites, recommended 2048 bits
+ssl_dhparam /etc/nginx/dh2048.pem;
+
+# modern configuration. tweak to your needs.
+ssl_protocols TLSv1.2;
+ssl_ciphers 'ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256';
+ssl_prefer_server_ciphers on;
+
+# HSTS (ngx_http_headers_module is required) (15768000 seconds = 6 months)
+add_header Strict-Transport-Security max-age=15768000;
+
+# OCSP Stapling ---
+# fetch OCSP records from URL in ssl_certificate and cache them
+ssl_stapling on;
+ssl_stapling_verify on;
+
+## verify chain of trust of OCSP response using Root CA and Intermediate certs
+# ian: commented out, unnecessary for le certs or my nginx ver.
+#ssl_trusted_certificate $cert_dir/fullchain.pem;;
+
+# ian: commented out, our local dns is expected to work fine.
+#resolver <IP DNS resolver>;
+EOF
+    cat >$vhost_file <<EOF
+server {
+    server_name $h www.$h;
+    root $root;
+    listen $port ssl $http2_arg;
+    listen [::]:$port ssl $http2_arg;
+
+    # certs sent to the client in SERVER HELLO are concatenated in ssl_certificate
+    ssl_certificate $cert_dir/fullchain.pem;
+    ssl_certificate_key $cert_dir/privkey.pem;
+    include $common_ssl_conf;
+EOF
+    if [[ $extra_settings ]]; then
+        cat $extra_settings >>$vhost_file
+    fi
+
+    if [[ $proxy ]]; then
+        cat >>$vhost_file <<EOF
+    location / {
+        proxy_set_header Host \$host;
+        proxy_set_header X-Real-IP \$remote_addr;
+        proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Ssl on;
+        proxy_set_header X-Forwarded-Port $port;
+        proxy_pass http://$proxy;
+    }
+EOF
+    fi
+
+    cat >>$vhost_file <<EOF
+}
+EOF
+
+    cat >$redir_file <<EOF
+server {
+    server_name $h www.$h;
+    listen 80 $http2_arg;
+    listen [::]:80 $http2_arg;
+    return 301 https://$server_name$request_uri;
+}
+EOF
+
+    service nginx restart
+
+fi ####### end if nginx