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dns setting for Debian 12 using nmcli (#4407)
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openoms
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commit
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1 changed files with 53 additions and 21 deletions
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@ -2,9 +2,9 @@
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# command info
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if [ $# -eq 0 ] || [ "$1" = "-h" ] || [ "$1" = "-help" ]; then
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echo "config script to set a the DNS server that should be used"
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echo "internet.dns.sh [DNS-SERVER|test|off]"
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exit 1
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echo "config script to set a the DNS server that should be used"
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echo "internet.dns.sh [DNS-SERVER|test|off]"
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exit 1
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fi
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# 1. parameter
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@ -14,7 +14,7 @@ DNSSERVER="$1"
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NODIALOG="$2"
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# just if auto reboot is needed after dialog
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autoreboot=0
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autoreboot=0
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if [ "${DNSSERVER}" = "off" ]; then
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# setting DNS address
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@ -22,7 +22,7 @@ if [ "${DNSSERVER}" = "off" ]; then
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sudo /home/admin/config.scripts/blitz.conf.sh delete "static domain_name_servers" /etc/dhcpcd.conf
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/home/admin/config.scripts/blitz.conf.sh delete dnsServer
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echo "# OK - needs reboot to activate"
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echo ""
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echo
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exit 0
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fi
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@ -44,39 +44,71 @@ Do you want to set the fixed DNS 1.1.1.1 by Cloudflare (they claim they provide
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if [ $? -eq 0 ]; then
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echo "# SETTING 1.1.1.1"
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DNSSERVER="1.1.1.1"
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# for IPv6: DNSSERVER="2606:4700:4700::1111"
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autoreboot=1
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else
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echo "# Ignoring DNS-Test fail"
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fi
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fi
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echo "The DNS server you want to set is: ${DNSSERVER}"
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# checking parameter
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if [[ $DNSSERVER =~ ^(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))$ ]]; then
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echo "# OK IPv6"
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echo "# OK ipv6"
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DNSTYPE=ipv6
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elif [[ $DNSSERVER =~ ^([0-9]{1,2}|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.([0-9]{1,2}|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.([0-9]{1,2}|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.([0-9]{1,2}|1[0-9][0-9]|2[0-4][0-9]|25[0-5])$ ]]; then
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echo "# OK IPv4"
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echo "# OK ipv4"
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DNSTYPE=ipv4
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else
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echo "error='not an IPv4 or IPv6 address'"
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exit 1
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fi
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echo ""
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echo
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dnsconfFile="/etc/dhcpcd.conf"
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isUbuntu=$(cat /etc/os-release 2>/dev/null | grep -c 'Ubuntu')
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if [ ${isUbuntu} -gt 0 ]; then
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echo "# adapting dhcpd.conf path for ubuntu"
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dnsconfFile="/etc/dhcp/dhcpd.conf"
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# check if /etc/dhcpcd.conf or /etc/dhcp/dhcpd.conf exists
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if sudo test -f /etc/dhcpcd.conf || sudo test -f /etc/dhcp/dhcpd.conf; then
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dnsconfFile="/etc/dhcpcd.conf"
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if grep Ubuntu /etc/os-release; then
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echo "# adapting dhcpd.conf path for ubuntu"
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dnsconfFile="/etc/dhcp/dhcpd.conf"
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fi
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# setting DNS address
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echo "# Setting DNS server ${DNSSERVER} in ${dnsconfFile} ..."
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sudo /home/admin/config.scripts/blitz.conf.sh set "static domain_name_servers" "${DNSSERVER}" "${dnsconfFile}"
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echo "# OK"
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echo
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else
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# Get a list of all active Ethernet and Wi-Fi connections
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ACTIVE_CONNECTIONS=$(nmcli -t -f TYPE,NAME con show --active | grep -E 'ethernet|wireless' | cut -d: -f2)
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for CON in $ACTIVE_CONNECTIONS; do
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if [[ -n "$CON" && "$CON" != "-" ]]; then
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echo "Setting ${DNSTYPE} DNS $DNSSERVER for $CON..."
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# Set the DNS servers for this connection
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if sudo nmcli con mod "$CON" $DNSTYPE.dns "$DNSSERVER" &&
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sudo nmcli con mod "$CON" $DNSTYPE.ignore-auto-dns yes &&
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sudo nmcli con mod "$CON" $DNSTYPE.method auto; then
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# if set successfully restart the connection to apply changes
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sudo nmcli con down "$CON"
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sudo nmcli con up "$CON"
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echo "${DNSTYPE} DNS set for $CON."
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else
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echo "Error: Failed to set DNS for $CON. It might not be an active connection."
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fi
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else
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echo "Skipping invalid or inactive connection name: $CON"
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fi
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done
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echo "DNS settings updated for all active Ethernet and Wi-Fi connections."
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# show the DNS setting
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nmcli dev show | grep DNS
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fi
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# setting DNS address
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echo "# Setting DNS server in /etc/dhcpcd.conf ..."
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sudo /home/admin/config.scripts/blitz.conf.sh set "static domain_name_servers" "${DNSSERVER}" /etc/dhcpcd.conf
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echo "# OK"
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echo ""
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# make sure entry in raspiblitz.conf exists
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/home/admin/config.scripts/blitz.conf.sh set dnsServer "${DNSSERVER}"
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echo "# OK"
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@ -85,4 +117,4 @@ echo ""
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echo "# DNS Server is set - needs reboot to get active"
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if [ ${autoreboot} -eq 1 ]; then
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sudo shutdown -r now
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fi
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fi
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