Merge v0.44

# Conflicts: # setup/bootstrap.sh
2026-03-15 17:37:22 +01:00 · 2020-03-02 21:52:44 +02:00
parent 8e94402282 30c2c60f59
commit 9b96b93260
22 changed files with 217 additions and 82 deletions
--- a/setup/bootstrap.sh
+++ b/setup/bootstrap.sh
@@ -20,7 +20,7 @@ if [ -z "$TAG" ]; then
 	# want to display in status checks.
 	if [ "`lsb_release -d | sed 's/.*:\s*//' | sed 's/18\.04\.[0-9]/18.04/' `" == "Ubuntu 18.04 LTS" ]; then
 		# This machine is running Ubuntu 18.04.
-		TAG=v0.43-quota-0.22-beta
+		TAG=v0.44-quota-0.22-beta

 	elif [ "`lsb_release -d | sed 's/.*:\s*//' | sed 's/14\.04\.[0-9]/14.04/' `" == "Ubuntu 14.04 LTS" ]; then
 		# This machine is running Ubuntu 14.04.
--- a/setup/dkim.sh
+++ b/setup/dkim.sh
@@ -31,6 +31,7 @@ if grep -q "ExternalIgnoreList" /etc/opendkim.conf; then
 else
 	# Add various configuration options to the end of `opendkim.conf`.
 	cat >> /etc/opendkim.conf << EOF;
+Canonicalization		relaxed/simple
 MinimumKeyBits          1024
 ExternalIgnoreList      refile:/etc/opendkim/TrustedHosts
 InternalHosts           refile:/etc/opendkim/TrustedHosts
--- a/setup/mail-dovecot.sh
+++ b/setup/mail-dovecot.sh
@@ -80,17 +80,16 @@ tools/editconf.py /etc/dovecot/conf.d/10-auth.conf \
 	"auth_mechanisms=plain login"

 # Enable SSL, specify the location of the SSL certificate and private key files.
-# Disable obsolete SSL protocols and allow only good ciphers per http://baldric.net/2013/12/07/tls-ciphers-in-postfix-and-dovecot/.
-# Enable strong ssl dh parameters
-
+# Use Mozilla's "Intermediate" recommendations at https://ssl-config.mozilla.org/#server=dovecot&server-version=2.2.33&config=intermediate&openssl-version=1.1.1,
+# except that the current version of Dovecot does not have a TLSv1.3 setting, so we only use TLSv1.2.
 tools/editconf.py /etc/dovecot/conf.d/10-ssl.conf \
 	ssl=required \
 	"ssl_cert=<$STORAGE_ROOT/ssl/ssl_certificate.pem" \
 	"ssl_key=<$STORAGE_ROOT/ssl/ssl_private_key.pem" \
-	"ssl_protocols=!SSLv3" \
-	"ssl_cipher_list=ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS" \
-	"ssl_prefer_server_ciphers = yes" \
-	"ssl_dh_parameters_length = 2048"
+	"ssl_protocols=TLSv1.2" \
+	"ssl_cipher_list=ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384" \
+	"ssl_prefer_server_ciphers=no" \
+	"ssl_dh_parameters_length=2048"

 # Disable in-the-clear IMAP/POP because there is no reason for a user to transmit
 # login credentials outside of an encrypted connection. Only the over-TLS versions
--- a/setup/mail-postfix.sh
+++ b/setup/mail-postfix.sh
@@ -80,8 +80,7 @@ tools/editconf.py /etc/postfix/main.cf \
 #   OpenDKIM milter only. See dkim.sh.
 # * Even though we dont allow auth over non-TLS connections (smtpd_tls_auth_only below, and without auth the client cant
 #   send outbound mail), don't allow non-TLS mail submission on this port anyway to prevent accidental misconfiguration.
-# * Require the best ciphers for incoming connections per http://baldric.net/2013/12/07/tls-ciphers-in-postfix-and-dovecot/.
-#   By putting this setting here we leave opportunistic TLS on incoming mail at default cipher settings (any cipher is better than none).
+#   Setting smtpd_tls_security_level=encrypt also triggers the use of the 'mandatory' settings below.
 # * Give it a different name in syslog to distinguish it from the port 25 smtpd server.
 # * Add a new cleanup service specific to the submission service ('authclean')
 #   that filters out privacy-sensitive headers on mail being sent out by
@@ -93,7 +92,6 @@ tools/editconf.py /etc/postfix/master.cf -s -w \
 	  -o syslog_name=postfix/submission
 	  -o smtpd_milters=inet:127.0.0.1:8891
 	  -o smtpd_tls_security_level=encrypt
-	  -o smtpd_tls_ciphers=high -o smtpd_tls_exclude_ciphers=aNULL,DES,3DES,MD5,DES+MD5,RC4 -o smtpd_tls_mandatory_protocols=!SSLv2,!SSLv3
 	  -o cleanup_service_name=authclean" \
 	"authclean=unix  n       -       -       -       0       cleanup
 	  -o header_checks=pcre:/etc/postfix/outgoing_mail_header_filters
@@ -108,20 +106,35 @@ cp conf/postfix_outgoing_mail_header_filters /etc/postfix/outgoing_mail_header_f
 sed -i "s/PRIMARY_HOSTNAME/$PRIMARY_HOSTNAME/" /etc/postfix/outgoing_mail_header_filters
 sed -i "s/PUBLIC_IP/$PUBLIC_IP/" /etc/postfix/outgoing_mail_header_filters

-# Enable TLS on these and all other connections (i.e. ports 25 *and* 587) and
-# require TLS before a user is allowed to authenticate. This also makes
-# opportunistic TLS available on *incoming* mail.
-# Set stronger DH parameters, which via openssl tend to default to 1024 bits
-# (see ssl.sh).
+# Enable TLS on incoming connections. It is not required on port 25, allowing for opportunistic
+# encryption. On port 587 it is mandatory (see above). Shared and non-shared settings are
+# given here. Shared settings include:
+# * Require TLS before a user is allowed to authenticate.
+# * Set the path to the server TLS certificate and 2048-bit DH parameters for old DH ciphers.
+# For port 25 only:
+# * Disable extremely old versions of TLS and extremely unsafe ciphers, but some mail servers out in
+#   the world are very far behind and if we disable too much, they may not be able to use TLS and
+#   won't fall back to cleartext. So we don't disable too much. smtpd_tls_exclude_ciphers applies to
+#   both port 25 and port 587, but because we override the cipher list for both, it probably isn't used.
+#   Use Mozilla's "Old" recommendations at https://ssl-config.mozilla.org/#server=postfix&server-version=3.3.0&config=old&openssl-version=1.1.1
+# For port 587 (via the 'mandatory' settings):
+# * Use Mozilla's "Intermediate" TLS recommendations from https://ssl-config.mozilla.org/#server=postfix&server-version=3.3.0&config=intermediate&openssl-version=1.1.1
+#   using and overriding the "high" cipher list so we don't conflict with the more permissive settings for port 25.
 tools/editconf.py /etc/postfix/main.cf \
 	smtpd_tls_security_level=may\
 	smtpd_tls_auth_only=yes \
 	smtpd_tls_cert_file=$STORAGE_ROOT/ssl/ssl_certificate.pem \
 	smtpd_tls_key_file=$STORAGE_ROOT/ssl/ssl_private_key.pem \
 	smtpd_tls_dh1024_param_file=$STORAGE_ROOT/ssl/dh2048.pem \
-	smtpd_tls_protocols=\!SSLv2,\!SSLv3 \
+	smtpd_tls_protocols="!SSLv2,!SSLv3" \
 	smtpd_tls_ciphers=medium \
+	tls_medium_cipherlist=ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA256:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA \
 	smtpd_tls_exclude_ciphers=aNULL,RC4 \
+	smtpd_tls_mandatory_protocols="!SSLv2,!SSLv3,!TLSv1,!TLSv1.1" \
+	smtpd_tls_mandatory_ciphers=high \
+	tls_high_cipherlist=ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384 \
+	smtpd_tls_mandatory_exclude_ciphers=aNULL,DES,3DES,MD5,DES+MD5,RC4 \
+	tls_preempt_cipherlist=no \
 	smtpd_tls_received_header=yes

 # Prevent non-authenticated users from sending mail that requires being
@@ -143,8 +156,12 @@ tools/editconf.py /etc/postfix/main.cf \
 # offers it, otherwise it will transmit the message in the clear. Postfix will
 # accept whatever SSL certificate the remote end provides. Opportunistic TLS
 # protects against passive easvesdropping (but not man-in-the-middle attacks).
+# Since we'd rather have poor encryption than none at all, we use Mozilla's
+# "Old" recommendations at https://ssl-config.mozilla.org/#server=postfix&server-version=3.3.0&config=old&openssl-version=1.1.1
+# for opportunistic encryption but "Intermediate" recommendations when DANE
+# is used (see next and above). The cipher lists are set above.
+
 # DANE takes this a step further:
-#
 # Postfix queries DNS for the TLSA record on the destination MX host. If no TLSA records are found,
 # then opportunistic TLS is used. Otherwise the server certificate must match the TLSA records
 # or else the mail bounces. TLSA also requires DNSSEC on the MX host. Postfix doesn't do DNSSEC
@@ -157,11 +174,12 @@ tools/editconf.py /etc/postfix/main.cf \
 # now see notices about trusted certs. The CA file is provided by the package `ca-certificates`.
 tools/editconf.py /etc/postfix/main.cf \
 	smtp_tls_protocols=\!SSLv2,\!SSLv3 \
-	smtp_tls_mandatory_protocols=\!SSLv2,\!SSLv3 \
 	smtp_tls_ciphers=medium \
 	smtp_tls_exclude_ciphers=aNULL,RC4 \
 	smtp_tls_security_level=dane \
 	smtp_dns_support_level=dnssec \
+	smtp_tls_mandatory_protocols="!SSLv2,!SSLv3,!TLSv1,!TLSv1.1" \
+	smtp_tls_mandatory_ciphers=high \
 	smtp_tls_CAfile=/etc/ssl/certs/ca-certificates.crt \
 	smtp_tls_loglevel=2

@@ -208,7 +226,7 @@ tools/editconf.py /etc/postfix/main.cf \
 # e-mails really latter, delay of greylisting has been set to
 # 180 seconds (default is 300 seconds).
 tools/editconf.py /etc/default/postgrey \
-	POSTGREY_OPTS=\"'--inet=127.0.0.1:10023 --delay=180 --whitelist-recipients=/etc/postgrey/whitelist_clients'\"
+	POSTGREY_OPTS=\"'--inet=127.0.0.1:10023 --delay=180'\"


 # We are going to setup a newer whitelist for postgrey, the version included in the distribution is old
@@ -218,7 +236,7 @@ cat > /etc/cron.daily/mailinabox-postgrey-whitelist << EOF;
 # Mail-in-a-Box

 # check we have a postgrey_whitelist_clients file and that it is not older than 28 days
-if [ ! -f /etc/postgrey/whitelist_clients ] || find /etc/postgrey/whitelist_clients -mtime +28 > /dev/null ; then
+if [ ! -f /etc/postgrey/whitelist_clients ] || find /etc/postgrey/whitelist_clients -mtime +28 | grep -q '.' ; then
    # ok we need to update the file, so lets try to fetch it
    if curl https://postgrey.schweikert.ch/pub/postgrey_whitelist_clients --output /tmp/postgrey_whitelist_clients -sS --fail > /dev/null 2>&1 ; then
        # if fetching hasn't failed yet then check it is a plain text file
--- a/setup/management.sh
+++ b/setup/management.sh
@@ -93,7 +93,8 @@ source $venv/bin/activate
 exec python `pwd`/management/daemon.py
 EOF
 chmod +x $inst_dir/start
-hide_output systemctl link -f conf/mailinabox.service
+cp --remove-destination conf/mailinabox.service /lib/systemd/system/mailinabox.service # target was previously a symlink so remove it first
+hide_output systemctl link -f /lib/systemd/system/mailinabox.service
 hide_output systemctl daemon-reload
 hide_output systemctl enable mailinabox.service

--- a/setup/munin.sh
+++ b/setup/munin.sh
@@ -53,7 +53,7 @@ find /etc/munin/plugins/ -lname /usr/share/munin/plugins/ntp_ -print0 | xargs -0
 # Deactivate monitoring of network interfaces that are not up. Otherwise we can get a lot of empty charts.
 for f in $(find /etc/munin/plugins/ \( -lname /usr/share/munin/plugins/if_ -o -lname /usr/share/munin/plugins/if_err_ -o -lname /usr/share/munin/plugins/bonding_err_ \)); do
 	IF=$(echo $f | sed s/.*_//);
-	if ! ifquery $IF >/dev/null 2>/dev/null; then
+	if ! grep -qFx up /sys/class/net/$IF/operstate 2>/dev/null; then
 		rm $f;
 	fi;
 done
@@ -64,7 +64,8 @@ mkdir -p /var/lib/munin-node/plugin-state/
 # Create a systemd service for munin.
 ln -sf $(pwd)/management/munin_start.sh /usr/local/lib/mailinabox/munin_start.sh
 chmod 0744 /usr/local/lib/mailinabox/munin_start.sh
-hide_output systemctl link -f conf/munin.service
+cp --remove-destination conf/munin.service /lib/systemd/system/munin.service # target was previously a symlink so remove first
+hide_output systemctl link -f /lib/systemd/system/munin.service
 hide_output systemctl daemon-reload
 hide_output systemctl unmask munin.service
 hide_output systemctl enable munin.service
--- a/setup/nextcloud.sh
+++ b/setup/nextcloud.sh
@@ -40,18 +40,18 @@ InstallNextcloud() {
 	# their github repositories.
 	mkdir -p /usr/local/lib/owncloud/apps

-	wget_verify https://github.com/nextcloud/contacts/releases/download/v3.1.1/contacts.tar.gz a06bd967197dcb03c94ec1dbd698c037018669e5 /tmp/contacts.tgz
+	wget_verify https://github.com/nextcloud/contacts/releases/download/v3.1.6/contacts.tar.gz d331dc6db2ecf7c8e6166926a055dfa3b59722c3 /tmp/contacts.tgz
 	tar xf /tmp/contacts.tgz -C /usr/local/lib/owncloud/apps/
 	rm /tmp/contacts.tgz

-	wget_verify https://github.com/nextcloud/calendar/releases/download/v1.6.5/calendar.tar.gz 79941255521a5172f7e4ce42dc7773838b5ede2f /tmp/calendar.tgz
+	wget_verify https://github.com/nextcloud/calendar/releases/download/v1.7.1/calendar.tar.gz bd7c846bad06da6d6ba04280f6fbf37ef846c2ad /tmp/calendar.tgz
 	tar xf /tmp/calendar.tgz -C /usr/local/lib/owncloud/apps/
 	rm /tmp/calendar.tgz

 	# Starting with Nextcloud 15, the app user_external is no longer included in Nextcloud core,
 	# we will install from their github repository.
-	if [[ $version =~ ^15 ]]; then
-		wget_verify https://github.com/nextcloud/user_external/releases/download/v0.6.3/user_external-0.6.3.tar.gz 0f756d35fef6b64a177d6a16020486b76ea5799c /tmp/user_external.tgz
+	if [[ $version =~ ^1[567] ]]; then
+		wget_verify https://github.com/nextcloud/user_external/releases/download/v0.7.0/user_external-0.7.0.tar.gz 555a94811daaf5bdd336c5e48a78aa8567b86437 /tmp/user_external.tgz
 		tar -xf /tmp/user_external.tgz -C /usr/local/lib/owncloud/apps/
 		rm /tmp/user_external.tgz
 	fi
@@ -91,8 +91,8 @@ InstallNextcloud() {
 }

 # Nextcloud Version to install. Checks are done down below to step through intermediate versions.
-nextcloud_ver=15.0.8
-nextcloud_hash=4129d8d4021c435f2e86876225fb7f15adf764a3
+nextcloud_ver=17.0.2
+nextcloud_hash=8095fb46e9e0c536163708aee3d17fab8b498ad6

 # Current Nextcloud Version, #1623
 # Checking /usr/local/lib/owncloud/version.php shows version of the Nextcloud application, not the DB
@@ -142,11 +142,19 @@ if [ ! -d /usr/local/lib/owncloud/ ] || [[ ! ${CURRENT_NEXTCLOUD_VER} =~ ^$nextc
 		elif [[ ${CURRENT_NEXTCLOUD_VER} =~ ^13 ]]; then
 			# If we are running Nextcloud 13, upgrade to Nextcloud 14
 			InstallNextcloud 14.0.6 4e43a57340f04c2da306c8eea98e30040399ae5a
-		elif [[ ${CURRENT_NEXTCLOUD_VER} =~ ^14 ]]; then
+			CURRENT_NEXTCLOUD_VER="14.0.6"
+		fi
+		if [[ ${CURRENT_NEXTCLOUD_VER} =~ ^14 ]]; then
 			# During the upgrade from Nextcloud 14 to 15, user_external may cause the upgrade to fail.
 			# We will disable it here before the upgrade and install it again after the upgrade.
 			hide_output sudo -u www-data php /usr/local/lib/owncloud/console.php app:disable user_external
+			InstallNextcloud 15.0.8 4129d8d4021c435f2e86876225fb7f15adf764a3
+			CURRENT_NEXTCLOUD_VER="15.0.8"
 		fi
+		if [[ ${CURRENT_NEXTCLOUD_VER} =~ ^15 ]]; then
+                        InstallNextcloud 16.0.6 0bb3098455ec89f5af77a652aad553ad40a88819
+                        CURRENT_NEXTCLOUD_VER="16.0.6"
+                fi
 	fi

 	InstallNextcloud $nextcloud_ver $nextcloud_hash
@@ -295,10 +303,6 @@ tools/editconf.py /etc/php/7.2/cli/conf.d/10-opcache.ini -c ';' \
 	opcache.save_comments=1 \
 	opcache.revalidate_freq=1

-# Configure the path environment for php-fpm
-tools/editconf.py /etc/php/7.2/fpm/pool.d/www.conf -c ';' \
-		env[PATH]=/usr/local/bin:/usr/bin:/bin
-
 # If apc is explicitly disabled we need to enable it
 if grep -q apc.enabled=0 /etc/php/7.2/mods-available/apcu.ini; then
 	tools/editconf.py /etc/php/7.2/mods-available/apcu.ini -c ';' \
@@ -306,12 +310,15 @@ if grep -q apc.enabled=0 /etc/php/7.2/mods-available/apcu.ini; then
 fi

 # Set up a cron job for Nextcloud.
-cat > /etc/cron.hourly/mailinabox-owncloud << EOF;
+cat > /etc/cron.d/mailinabox-nextcloud << EOF;
 #!/bin/bash
 # Mail-in-a-Box
-sudo -u www-data php -f /usr/local/lib/owncloud/cron.php
+*/5 * * * *	root	sudo -u www-data php -f /usr/local/lib/owncloud/cron.php
 EOF
-chmod +x /etc/cron.hourly/mailinabox-owncloud
+chmod +x /etc/cron.d/mailinabox-nextcloud
+
+# Remove previous hourly cronjob
+rm -f /etc/cron.hourly/mailinabox-owncloud

 # There's nothing much of interest that a user could do as an admin for Nextcloud,
 # and there's a lot they could mess up, so we don't make any users admins of Nextcloud.
--- a/setup/spamassassin.sh
+++ b/setup/spamassassin.sh
@@ -64,8 +64,8 @@ tools/editconf.py /etc/default/spampd \
 # the X-Spam-Status & X-Spam-Score mail headers and related headers.
 tools/editconf.py /etc/spamassassin/local.cf -s \
 	report_safe=0 \
-	add_header="all Report _REPORT_" \
-    add_header="all Score _SCORE_"
+	"add_header all Report"=_REPORT_ \
+	"add_header all Score"=_SCORE_

 # Bayesean learning
 # -----------------
--- a/setup/system.sh
+++ b/setup/system.sh
@@ -86,6 +86,10 @@ if [ ! -f /usr/bin/add-apt-repository ]; then
 	apt_install software-properties-common
 fi

+# Ensure the universe repository is enabled since some of our packages
+# come from there and minimal Ubuntu installs may have it turned off.
+hide_output add-apt-repository -y universe
+
 # Install the certbot PPA.
 hide_output add-apt-repository -y ppa:certbot/certbot

@@ -121,11 +125,12 @@ apt_get_quiet autoremove
 # * sudo: allows privileged users to execute commands as root without being root
 # * coreutils: includes `nproc` tool to report number of processors, mktemp
 # * bc: allows us to do math to compute sane defaults
+# * openssh-client: provides ssh-keygen

 echo Installing system packages...
 apt_install python3 python3-dev python3-pip \
 	netcat-openbsd wget curl git sudo coreutils bc \
-	haveged pollinate unzip \
+	haveged pollinate openssh-client unzip \
 	unattended-upgrades cron ntp fail2ban rsyslog

 # ### Suppress Upgrade Prompts
--- a/setup/web.sh
+++ b/setup/web.sh
@@ -31,14 +31,19 @@ sed "s#STORAGE_ROOT#$STORAGE_ROOT#" \
 	conf/nginx-ssl.conf > /etc/nginx/conf.d/ssl.conf

 # Fix some nginx defaults.
+#
 # The server_names_hash_bucket_size seems to prevent long domain names!
 # The default, according to nginx's docs, depends on "the size of the
 # processor’s cache line." It could be as low as 32. We fixed it at
 # 64 in 2014 to accommodate a long domain name (20 characters?). But
 # even at 64, a 58-character domain name won't work (#93), so now
 # we're going up to 128.
+#
+# Drop TLSv1.0, TLSv1.1, following the Mozilla "Intermediate" recommendations
+# at https://ssl-config.mozilla.org/#server=nginx&server-version=1.17.0&config=intermediate&openssl-version=1.1.1.
 tools/editconf.py /etc/nginx/nginx.conf -s \
-	server_names_hash_bucket_size="128;"
+	server_names_hash_bucket_size="128;" \
+	ssl_protocols="TLSv1.2 TLSv1.3;"

 # Tell PHP not to expose its version number in the X-Powered-By header.
 tools/editconf.py /etc/php/7.2/fpm/php.ini -c ';' \
@@ -48,13 +53,47 @@ tools/editconf.py /etc/php/7.2/fpm/php.ini -c ';' \
 tools/editconf.py /etc/php/7.2/fpm/php.ini -c ';' \
        default_charset="UTF-8"

-# Switch from the dynamic process manager to the ondemand manager see #1216
+# Configure the path environment for php-fpm
 tools/editconf.py /etc/php/7.2/fpm/pool.d/www.conf -c ';' \
-	pm=ondemand
+	env[PATH]=/usr/local/bin:/usr/bin:/bin \

-# Bump up PHP's max_children to support more concurrent connections
-tools/editconf.py /etc/php/7.2/fpm/pool.d/www.conf -c ';' \
-	pm.max_children=8
+# Configure php-fpm based on the amount of memory the machine has
+# This is based on the nextcloud manual for performance tuning: https://docs.nextcloud.com/server/17/admin_manual/installation/server_tuning.html
+# Some synchronisation issues can occur when many people access the site at once.
+# The pm=ondemand setting is used for memory constrained machines < 2GB, this is copied over from PR: 1216
+TOTAL_PHYSICAL_MEM=$(head -n 1 /proc/meminfo | awk '{print $2}' || /bin/true)
+if [ $TOTAL_PHYSICAL_MEM -lt 1000000 ]
+then
+        tools/editconf.py /etc/php/7.2/fpm/pool.d/www.conf -c ';' \
+                pm=ondemand \
+                pm.max_children=8 \
+                pm.start_servers=2 \
+                pm.min_spare_servers=1 \
+                pm.max_spare_servers=3
+elif [ $TOTAL_PHYSICAL_MEM -lt 2000000 ]
+then
+        tools/editconf.py /etc/php/7.2/fpm/pool.d/www.conf -c ';' \
+                pm=ondemand \
+                pm.max_children=16 \
+                pm.start_servers=4 \
+                pm.min_spare_servers=1 \
+                pm.max_spare_servers=6
+elif [ $TOTAL_PHYSICAL_MEM -lt 3000000 ]
+then
+        tools/editconf.py /etc/php/7.2/fpm/pool.d/www.conf -c ';' \
+                pm=dynamic \
+                pm.max_children=60 \
+                pm.start_servers=6 \
+                pm.min_spare_servers=3 \
+                pm.max_spare_servers=9
+else
+        tools/editconf.py /etc/php/7.2/fpm/pool.d/www.conf -c ';' \
+                pm=dynamic \
+                pm.max_children=120 \
+                pm.start_servers=12 \
+                pm.min_spare_servers=6 \
+                pm.max_spare_servers=18
+fi

 # Other nginx settings will be configured by the management service
 # since it depends on what domains we're serving, which we don't know
--- a/setup/webmail.sh
+++ b/setup/webmail.sh
@@ -22,15 +22,15 @@ source /etc/mailinabox.conf # load global vars
 echo "Installing Roundcube (webmail)..."
 apt_install \
 	dbconfig-common \
-	php-cli php-sqlite3 php-intl php-json php-common php-curl \
+	php-cli php-sqlite3 php-intl php-json php-common php-curl php-ldap \
 	php-gd php-pspell tinymce libjs-jquery libjs-jquery-mousewheel libmagic1 php-mbstring

 # Install Roundcube from source if it is not already present or if it is out of date.
 # Combine the Roundcube version number with the commit hash of plugins to track
 # whether we have the latest version of everything.
-VERSION=1.3.10
-HASH=431625fc737e301f9b7e502cccc61e50a24786b8
-PERSISTENT_LOGIN_VERSION=dc5ca3d3f4415cc41edb2fde533c8a8628a94c76
+VERSION=1.4.2
+HASH=d53fcd7f1109a63364d5d4a43f879c6f47d34a89
+PERSISTENT_LOGIN_VERSION=6b3fc450cae23ccb2f393d0ef67aa319e877e435
 HTML5_NOTIFIER_VERSION=4b370e3cd60dabd2f428a26f45b677ad1b7118d5
 CARDDAV_VERSION=3.0.3
 CARDDAV_HASH=d1e3b0d851ffa2c6bd42bf0c04f70d0e1d0d78f8
@@ -51,6 +51,13 @@ elif [[ "$UPDATE_KEY" != `cat /usr/local/lib/roundcubemail/version` ]]; then
 	needs_update=1 #NODOC
 fi
 if [ $needs_update == 1 ]; then
+  # if upgrading from 1.3.x, clear the temp_dir
+  if [ -f /usr/local/lib/roundcubemail/version ]; then
+    if [ "$(cat /usr/local/lib/roundcubemail/version | cut -c1-3)" == '1.3' ]; then
+      find /var/tmp/roundcubemail/ -type f ! -name 'RCMTEMP*' -delete
+    fi
+  fi
+
 	# install roundcube
 	wget_verify \
 		https://github.com/roundcube/roundcubemail/releases/download/$VERSION/roundcubemail-$VERSION-complete.tar.gz \
@@ -110,9 +117,6 @@ cat > $RCM_CONFIG <<EOF;
 );
 \$config['imap_timeout'] = 15;
 \$config['smtp_server'] = 'tls://127.0.0.1';
-\$config['smtp_port'] = 587;
-\$config['smtp_user'] = '%u';
-\$config['smtp_pass'] = '%p';
 \$config['smtp_conn_options'] = array(
  'ssl'         => array(
     'verify_peer'  => false,
@@ -123,7 +127,7 @@ cat > $RCM_CONFIG <<EOF;
 \$config['product_name'] = '$PRIMARY_HOSTNAME Webmail';
 \$config['des_key'] = '$SECRET_KEY';
 \$config['plugins'] = array('html5_notifier', 'archive', 'zipdownload', 'password', 'managesieve', 'jqueryui', 'persistent_login', 'carddav');
-\$config['skin'] = 'larry';
+\$config['skin'] = 'elastic';
 \$config['login_autocomplete'] = 2;
 \$config['password_charset'] = 'UTF-8';
 \$config['junk_mbox'] = 'Spam';
--- a/setup/zpush.sh
+++ b/setup/zpush.sh
@@ -22,8 +22,8 @@ apt_install \
 phpenmod -v php imap

 # Copy Z-Push into place.
-VERSION=2.5.0
-TARGETHASH=30ce5c1af3f10939036361b6032d1187651b621e
+VERSION=2.5.1
+TARGETHASH=4fa55863a429b0033497ae477aca4c8699b8f332
 needs_update=0 #NODOC
 if [ ! -f /usr/local/lib/z-push/version ]; then
 	needs_update=1 #NODOC