Port 53 check updated with 4 spaces.
Signed-off-by: RamSet <RamSet@gmail.com>
This commit is contained in:
RamSet
parent
3af61c031d
commit
56b04017e7
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@ -40,9 +40,11 @@ COL_LIGHT_PURPLE="${COL_PURPLE}"
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COL_BROWN="${COL_YELLOW}"
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COL_LIGHT_GRAY="${COL_GRAY}"
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COL_DARK_GRAY="${COL_GRAY}"
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COL_LIGHT_YELLOW="${COL_YELLOW}"
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TICK="[${COL_GREEN}✓${COL_NC}]"
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CROSS="[${COL_RED}✗${COL_NC}]"
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EXCL="[${COL_YELLOW}!${COL_NC}]"
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INFO="[i]"
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QST="[?]"
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DONE="${COL_GREEN} done!${COL_NC}"
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@ -37,6 +37,10 @@ setupVars=/etc/pihole/setupVars.conf
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lighttpdConfig=/etc/lighttpd/lighttpd.conf
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# This is a file used for the colorized output
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coltable=/opt/pihole/COL_TABLE
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# Defining a numeric variable for tracking presence of dnsmasq
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dnsmasq_flag=false
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# Defining a numeric variable for tracking presence of systemd-resolved
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systemd_resolved_flag=false
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# We store several other folders and
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webInterfaceGitUrl="https://github.com/pi-hole/AdminLTE.git"
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@ -82,13 +86,16 @@ skipSpaceCheck=false
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reconfigure=false
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runUnattended=false
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INSTALL_WEB_SERVER=true
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forceFTLDNS=false
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# Check arguments for the undocumented flags
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for var in "$@"; do
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case "$var" in
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"--reconfigure" ) reconfigure=true;;
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"--reconfigure" ) reconfigure=true forceFTLDNS=true;;
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"--i_do_not_follow_recommendations" ) skipSpaceCheck=true;;
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"--unattended" ) runUnattended=true;;
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"--disable-install-webserver" ) INSTALL_WEB_SERVER=false;;
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"--forceFTLDNS" ) forceFTLDNS=true;;
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esac
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done
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@ -102,8 +109,11 @@ else
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COL_NC='\e[0m' # No Color
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COL_LIGHT_GREEN='\e[1;32m'
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COL_LIGHT_RED='\e[1;31m'
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COL_LIGHT_YELLOW='\e[1;33m'
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COL_LIGHT_CYAN='\e[1;96m'
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TICK="[${COL_LIGHT_GREEN}✓${COL_NC}]"
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CROSS="[${COL_LIGHT_RED}✗${COL_NC}]"
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EXCL="[${COL_LIGHT_YELLOW}!${COL_NC}]"
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INFO="[i]"
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# shellcheck disable=SC2034
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DONE="${COL_LIGHT_GREEN} done!${COL_NC}"
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@ -138,6 +148,84 @@ show_ascii_berry() {
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}
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# Compatibility
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port_53_probe(){
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# Probe localhost via 127.0.0.1 for open port 53 and store process name if port 53 is occupied
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if (echo > /dev/tcp/127.0.0.1/53) >/dev/null 2>&1; then
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# What process is using 53?
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who53="$(${SUDO} lsof -i :53 +c 0 | awk 'FNR==2{ print $1 }')"
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fi
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}
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port_53_check(){
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# Print info regarding probing for open port 53
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echo -e " ${INFO} Testing for port 53 availability...${COL_NC}"
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port_53_probe
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# Check running process and see if it's blank
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if [ -z "$who53" ]; then
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echo -e " ${TICK} ${COL_LIGHT_GREEN}Port 53 is available.${COL_NC}"
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# Check running process and see if it's pihole-FTL
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elif [ "$who53" = "pihole-FTL" ]; then
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# Proceed with install
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echo -e " ${TICK} Port 53 is in use by our resolver ${COL_LIGHT_GREEN}($who53)${COL_NC}, proceeding with setup"
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elif [ "$who53" = "dnsmasq" ] && [[ $forceFTLDNS = "true" ]]; then
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# If dnsmasq is present, set the dnsmasq-flag to true for future reference
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# (after packages and dependencies are installed).
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# dnsmasq will be disabled at end of install, prior to FTLDNS start.
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echo -e " ${EXCL} Port 53 is in use by ${COL_LIGHT_RED}$who53${COL_NC}."
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echo -e " --forceFTLDNS flag was used. The installer ${COL_LIGHT_RED}will disable $who53${COL_NC} after dependencies and packages"
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echo -e " have been downloaded, and replace dnsmasq with FTLDNS."
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dnsmasq_flag=true
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elif [ "$who53" = "dnsmasq" ] && [[ $forceFTLDNS = "false" ]]; then
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# If dnsmasq is present, set the dnsmasq-flag to true for future reference
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# (after packages and dependencies are installed).
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# dnsmasq will be disabled at end of install, prior to FTLDNS start.
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echo -e " ${EXCL} Port 53 is in use by ${COL_LIGHT_RED}$who53${COL_NC}."
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echo -e " In order for the installer to proceed, ${COL_LIGHT_RED}$who53${COL_NC} needs to be disabled."
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echo -e " Please re-run the installer with the following command:"
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echo -e " ${COL_LIGHT_CYAN}curl -sSL https://install.pi-hole.net | bash -s -- --forceFTLDNS${COL_NC}"
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exit 0
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elif [ "$who53" = "systemd-resolve" ] && [[ $forceFTLDNS = "true" ]]; then
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# If systemd-resolved is present, set the systemd-resolved-flag to true for future reference
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# (after packages and dependencies are installed).
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# systemd-resolved will be disabled at end of install, prior to FTLDNS start.
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echo -e " ${EXCL} Port 53 is in use by ${COL_LIGHT_RED}$who53${COL_NC}."
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echo -e " --forceFTLDNS flag was used. The installer ${COL_LIGHT_RED}will disable $who53${COL_NC} after dependencies and packages"
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echo -e " have been downloaded, and replace the system DNS resolver with FTLDNS."
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systemd_resolved_flag=true
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elif [ "$who53" = "systemd-resolve" ] && [[ $forceFTLDNS = "false" ]]; then
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# If systemd-resolved is present, set the systemd-resolved-flag to true for future reference
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# (after packages and dependencies are installed).
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# systemd-resolved will be disabled at end of install, prior to FTLDNS start.
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echo -e " ${EXCL} Port 53 is in use by ${COL_LIGHT_RED}$who53${COL_NC}."
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echo -e " In order for the installer to proceed, ${COL_LIGHT_RED}$who53${COL_NC} needs to be disabled."
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echo -e " Please re-run the installer with the following command:"
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echo -e " ${COL_LIGHT_CYAN}curl -sSL https://install.pi-hole.net | bash -s -- --forceFTLDNS${COL_NC}"
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exit 0
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else
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# Port 53 is used by something else, stop install
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echo -e " ${EXCL} ${COL_LIGHT_YELLOW}WARNING: Port 53 (mandatory for FTLDNS) is already in use by ${COL_LIGHT_RED}$who53${COL_NC}."
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echo -e " Since this will interfere with the functionality of FTLDNS, the installer cannot continue."
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echo -e " Please visit our discourse forum at ${COL_LIGHT_CYAN}https://discourse.pi-hole.net${COL_NC}"
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echo -e " in order to get help related to this issue."
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echo -e " ${COL_LIGHT_RED}Installer will now exit.${COL_NC}"
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exit 0
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fi
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}
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# Creating silent port 53 check
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silent_port_53_check(){
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# Probe localhost via 127.0.0.1 for open port 53 availability
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port_53_probe
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# Check running process and see if it's dnsmasq
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if [ "$who53" = "dnsmasq" ]; then
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# If dnsmasq is present, set the dnsmasq-flag to true for future reference
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# (after packages and dependencies are installed).
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# dnsmasq will be disabled at end of install, prior to FTLDNS start.
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dnsmasq_flag=true
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fi
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}
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distro_check() {
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# If apt-get is installed, then we know it's part of the Debian family
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if command -v apt-get &> /dev/null; then
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@ -1378,28 +1466,62 @@ check_service_active() {
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# Systemd-resolved's DNSStubListener and dnsmasq can't share port 53.
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disable_resolved_stublistener() {
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echo -en " ${INFO} Testing if systemd-resolved is enabled"
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# Check if Systemd-resolved's DNSStubListener is enabled and active on port 53
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if check_service_active "systemd-resolved"; then
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echo -e " ${INFO} Testing if systemd-resolved is enabled"
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# Check if Systemd-resolved's DNSStubListener flag is present
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if [[ $systemd_resolved_flag = "true" ]]; then
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# Check if DNSStubListener is enabled
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echo -en " ${OVER} ${INFO} Testing if systemd-resolved DNSStub-Listener is active"
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echo -e " ${INFO} Testing if systemd-resolved DNSStub-Listener is active"
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if ( grep -E '#?DNSStubListener=yes' /etc/systemd/resolved.conf &> /dev/null ); then
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# Disable the DNSStubListener to unbind it from port 53
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# Note that this breaks dns functionality on host until dnsmasq/ftl are up and running
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echo -en "${OVER} ${TICK} Disabling systemd-resolved DNSStubListener"
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# Make a backup of the original /etc/systemd/resolved.conf
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# (This will need to be restored on uninstallation)
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sed -r -i.orig 's/#?DNSStubListener=yes/DNSStubListener=no/g' /etc/systemd/resolved.conf
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echo -e " and restarting systemd-resolved"
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systemctl reload-or-restart systemd-resolved
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# Disable the DNSStubListener to unbind it from port 53
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# Note that this breaks dns functionality on host until dnsmasq/ftl are up and running
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echo -e " ${TICK} Disabling systemd-resolved DNSStubListener"
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# Make a backup of the original /etc/systemd/resolved.conf
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# (This will need to be restored on uninstallation)
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${SUDO} sed -r -i.orig 's/#?DNSStubListener=yes/DNSStubListener=no/g' /etc/systemd/resolved.conf
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echo -e " ${TICK} Restarting systemd-resolved DNSStubListener"
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${SUDO} systemctl reload-or-restart systemd-resolved
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else
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echo -e "${OVER} ${INFO} Systemd-resolved does not need to be restarted"
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echo -e " ${INFO} Systemd-resolved does not need to be restarted"
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echo -e " ${INFO} DNSStubListener is not enabled"
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fi
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else
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echo -e "${OVER} ${INFO} Systemd-resolved is not enabled"
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echo -e " ${INFO} Systemd-resolved is not enabled"
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fi
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}
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disable_dnsmasq() {
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# Check if dnsmasq flag is present.
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echo -e " ${INFO} Checking if dnsmasq is enabled"
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if [[ $dnsmasq_flag = "true" ]]; then
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if ( grep -E '#?dns=dnsmasq' /etc/NetworkManager/NetworkManager.conf &> /dev/null ); then
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# Disable dnsmasq from restarting when Network Manager restarts
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# Note that this breaks dns functionality on host until FTLDNS is up and running
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echo -e " ${TICK} Disabling dnsmasq from restarting when Network manager starts/restarts"
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# Make a backup of the original /etc/NetworkManager/NetworkManager.conf
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# (This will need to be restored on uninstallation)
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${SUDO} sed -r -i.orig '/#?dns=dnsmasq/d' /etc/NetworkManager/NetworkManager.conf
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echo -e " ${TICK} Restarting Network manager"
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${SUDO} systemctl reload-or-restart NetworkManager
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else
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# Disabling dnsmasq via systemctl
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echo -e " ${INFO} Disabling dnsmasq via systemctl"
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${SUDO} systemctl disable dnsmasq &> /dev/null
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fi
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#setting dnsmasq_flag to false in order for the next check to validate or not
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dnsmasq_flag=false
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echo -e " ${INFO} Checking if dnsmasq is still running"
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silent_port_53_check
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if [[ $dnsmasq_flag = "true" ]]; then
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echo -e " ${EXCL} dnsmasq still active, this is most likely due to the fact that ${COL_LIGHT_RED}dnsmasq"
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echo -e " was loaded via a non convetional method. This might cause future conflicts with FTLDNS${COL_NC}"
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${SUDO} pkill dnsmasq
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echo -e " ${TICK} dnsmasq process killed"
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fi
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else
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echo -e " ${INFO} dnsmasq is not enabled"
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fi
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}
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update_package_cache() {
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# Running apt-get update/upgrade with minimal output can cause some issues with
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# requiring user input (e.g password for phpmyadmin see #218)
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@ -1891,6 +2013,7 @@ update_dialogs() {
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${opt1a})
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echo -e " ${INFO} ${opt1a} option selected"
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useUpdateVars=true
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forceFTLDNS=true
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;;
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# reconfigure,
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${opt2a})
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@ -2303,6 +2426,8 @@ main() {
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echo -e " ${TICK} ${str}"
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# Show the Pi-hole logo so people know it's genuine since the logo and name are trademarked
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show_ascii_berry
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# Check for port 53 availability
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port_53_check
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make_temporary_log
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# Otherwise,
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else
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@ -2434,11 +2559,20 @@ main() {
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fi
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fi
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# Check for and disable systemd-resolved-DNSStubListener before reloading resolved
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# Check for systemd-resolved flag and disable systemd-resolved-DNSStubListener before reloading resolved
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# DNSStubListener needs to remain in place for installer to download needed files,
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# so this change needs to be made after installation is complete,
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# but before starting or resarting the dnsmasq or ftl services
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disable_resolved_stublistener
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# but before starting or restarting the FTLDNS service
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if [[ $systemd_resolved_flag = "true" ]]; then
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disable_resolved_stublistener
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fi
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# Check for dnsmasq flag and disable dnsmasq before starting FTLDNS
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# dnsmasq needs to remain in place for installer to download needed files,
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# so this change needs to be made after installation is complete,
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# but before starting or restarting the FTLDNS service
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if [[ $dnsmasq_flag = "true" ]]; then
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disable_dnsmasq
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fi
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# If the Web server was installed,
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if [[ "${INSTALL_WEB_SERVER}" == true ]]; then
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@ -2453,7 +2587,6 @@ main() {
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echo -e " ${INFO} Restarting services..."
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# Start services
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# Enable FTL
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start_service pihole-FTL
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enable_service pihole-FTL
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@ -158,6 +158,12 @@ removeNoPurge() {
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systemctl reload-or-restart systemd-resolved
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fi
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# Restore dnsmasq via Network Manager
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if [[ -e /etc/NetworkManager/NetworkManager.conf.orig ]]; then
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${SUDO} cp /etc/NetworkManager/NetworkManager.conf.orig /etc/NetworkManager/NetworkManager.conf
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systemctl reload-or-restart NetworkManager
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fi
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# Remove FTL
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if command -v pihole-FTL &> /dev/null; then
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echo -ne " ${INFO} Removing pihole-FTL..."
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