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58 29-Dez.-2024 12:26 8 KB Administrator zur vorherigen
57 29-Dez.-2024 12:23 8 KB Administrator zur vorherigen | zur neuesten
56 29-Dez.-2024 12:13 7 KB Administrator zur vorherigen | zur neuesten
55 29-Dez.-2024 11:58 7 KB Administrator zur vorherigen | zur neuesten
54 29-Dez.-2024 11:54 7 KB Administrator zur vorherigen | zur neuesten
53 29-Dez.-2024 11:49 6 KB Administrator zur vorherigen | zur neuesten
52 29-Dez.-2024 11:48 6 KB Administrator zur vorherigen | zur neuesten
51 29-Dez.-2024 11:45 6 KB Administrator zur vorherigen | zur neuesten
50 29-Dez.-2024 11:43 6 KB Administrator zur vorherigen | zur neuesten
49 29-Dez.-2024 11:20 5 KB Administrator zur vorherigen | zur neuesten
48 29-Dez.-2024 10:58 5 KB Administrator zur vorherigen | zur neuesten
47 29-Dez.-2024 10:54 5 KB Administrator zur vorherigen | zur neuesten
46 29-Dez.-2024 10:51 4 KB Administrator zur vorherigen | zur neuesten
45 29-Dez.-2024 10:50 4 KB Administrator zur vorherigen | zur neuesten DynDNS and ipv6 ==> DNS, DynDNS and ipv6
44 29-Dez.-2024 10:49 4 KB Administrator zur vorherigen | zur neuesten
43 29-Dez.-2024 10:35 4 KB Administrator zur vorherigen | zur neuesten Raspberry Security ==> DynDNS and ipv6
42 24-Dez.-2024 12:15 4 KB Administrator zur vorherigen | zur neuesten
41 24-Dez.-2024 11:35 4 KB Administrator zur vorherigen | zur neuesten

Links

Eingehende Links Ausgehende Links
DNS, DynDNS and ipv6
DNS, DynDNS and ipv6

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Zeile 6: 110 Zeilen hinzugefügt.
![IPv6] Address
Check/Test IPs
{{{
> ifconfig
> ip a | grep inet6
> ip -4 addr show
> ip -6 -o addr show dev eth0 scope global
> ping -6 2a02:5a0:4110:f590:fdd3:3e99:1234:9876
> ping -6 www.google.com
> nslookup -6 www.google.com
> sudo traceroute -6 www.google.com
}}}
The raspberry may have a random ipv6 to hide target.
This can happen with "privacy extensions" enabled via dhcpcd (Dynamic Host Configuration Protocol Client Daemon).
But this is not enabled by default, check with \\
> service dhcpcd status \\
If "Unit dhcpcd.service could not be found." then the random IP is set from Fritz!Box, \\
If found, you can disable (not recommended):
{{{
> sudo vi /etc/dhcpcd.conf
> slaac private # change to "slaac hwaddr"
> sudo service networking restart
}}}
see Heimnetz > Netzwerk > YourDevice > Heimnetz > "IPv6-GUA-Temporary" \\
The official IPv6-GUA (Global Unicast-Address) is another one.\\
But with dyndns we can use the random/temporary one.
Windows
{{{
> ping -6 www.google.com
> ping -6 2a02:5a0:410f:46f0:51ef:ea06:9875:1234
> nslookup myDevice 192.168.188.1 # for 1. target with 2. nameserver
> nslookup myDevice fd94:725a:490a::d624:ddff:fe70:5c5b
> nslookup -debug -type=any -type=aaaa MyComputer 192.168.188.1
> resolvconf -l
> ipconfig # see also standard gateway here
}}}
Fritzbox\\
temporary vs permanent/secured ipv6
* LLA - Local Link Address
* ULA - Unique Local Address
* GUA - Global Unicast-Address
IP lifetime
{{{
> ip addr show eth0
set lifetime to forever:
> sudo ip addr change 2a02:5a0:4110:f590:6547:1234:9876:ee dev eth0 valid_lft forever preferred_lft forever
}}}
! [Network Manager|https://wiki.debian.org/NetworkConfiguration#DNS_configuration_for_NetworkManager]
I use a custom DNS server setting, because the fritzbox does not resolve my dynv6 domains (?).\\
Do not modify file "/etc/resolv.conf". Use network manager instead with "nmcli".
{{{
> systemctl status NetworkManager
> sudo vi /etc/NetworkManager/NetworkManager.conf # config
> sudo vi /etc/NetworkManager/system-connections/*Wired* # config
> sudo /etc/init.d/networking restart
> sudo systemctl reload NetworkManager
> sudo systemctl status NetworkManager.service
> sudo systemctl restart NetworkManager.service # log in > journalctl -u NetworkManager.service -b
> sudo nmcli device reapply eth0
> sudo nmcli general
> sudo nmcli general reload dns-full # flush dns cache
> sudo nmcli -o device show # show interfaces settings
> sudo nmcli -p connection show # show interface status
#THIS IS NECESSARY
> sudo nmcli con mod "Wired connection 1" ipv4.dns "1.1.1.1,8.8.8.8" # add cloudflare and google dns
> sudo nmcli con mod "Wired connection 1" ipv4.ignore-auto-dns no # this adds "search fritz.box" to get ips at all from frit.box
> sudo nmcli con mod "Wired connection 1" ipv6.ignore-auto-dns yes # we skip ipv6 dns
> sudo nmcli c down "Wired connection 1" && sudo nmcli c up "Wired connection 1" # restart
> sudo nmtui # visual tool for network manager
> sudo nmcli conn up eth0
> sudo nmcli con mod "Wired connection 1" ipv4.dns 10.0.0.1
> sudo nmcli con mod "Wired connection 1" ipv6.dns 2606:4700:4700::1111
> sudo nmcli con mod "Wired connection 1" ipv6.dns-priority 100 ipv4.dns-priority 50
> sudo vi /etc/resolv.conf # validate settings
> sudo nmcli connection modify help # help
> nmcli connection modify "Wired connection 1" -ipv6.dns fd94:725a:490a:0:d624:ddff:9867:1234
> nmcli device modify eth0 ipv4.ignore-auto-dns yes # remove dns nameservers
> sudo nmcli con mod "Wired connection 1" ipv6.ignore-auto-dns no # remove dns nameservers
}}}
Reset
{{{
sudo rm /etc/resolv.conf
sudo systemctl restart NetworkManager
}}}
DHCP
{{{
> service --status-all # check all services
}}}
If you see "networking", this seems do be dhclient
{{{
> sudo vi /etc/default/networking # config
> sudo vi /etc/dhcp/dhclient.conf # config
> sudo dhclient -v eth0 # renew
> sudo dhclient -6 -r -v eth0 # force renew
> sudo systemctl restart networking # restart
> sudo ifconfig eth0 down && sudo ifconfig eth0 up
}}}
!! DynDNS
Zeile 42: 9 Zeilen gelöscht.
!Configure
Check IPs
{{{
> ifconfig
> ip a | grep inet6
> ip -4 addr show
> ip -6 -o addr show dev eth0 scope global
}}}
Zeile 69: 2 Zeilen geändert.
! Test DynDNS
Note: it is sufficient to register just an ipv6 address with your dyndns provider (AAAA record). You do neither need an ip4 address nor any other DNS zone entry. \\
! Test DynDNS / Error DNS_PROBE_FINISHED_NXDOMAIN
Note: it is sufficient to register just an ipv6 address with your dyndns provider (AAAA record). You do neither need an ip4 address (A record) nor any other DNS zone entry. \\
Zeile 76: 5 Zeilen geändert.
||Cloudflare||1.1.1.1||2606:4700:4700::1111
||Google||8.8.8.8 or 8.8.4.4||2001:4860:4860::8888 or 2001:4860:4860::8844
||Digitalcourage e.V.||46.182.19.48||2a02:2970:1002::18
||Digitale Gesellschaft||185.95.218.42||2a05:fc84::42
||dismail.de||80.241.218.68||2a02:c205:3001:4558::1
[{Table style='width:auto'
|Cloudflare|1.1.1.1|2606:4700:4700::1111
|Google|8.8.8.8 or 8.8.4.4|2001:4860:4860::8888 or 2001:4860:4860::8844
|Digitalcourage e.V.|46.182.19.48|2a02:2970:1002::18
|Digitale Gesellschaft|185.95.218.42|2a05:fc84::42
|dismail.de|80.241.218.68|2a02:c205:3001:4558::1
}]
Zeile 188: 3 Zeilen hinzugefügt.
> netsh int ip show address
> route print -6
> arp -a
Zeile 88: 15 Zeilen geändert.
![IPv6] Address
The raspberry may have a random ipv6 to hide target.
This can happen with "privacy extensions" enabled via dhcpcd (Dynamic Host Configuration Protocol Client Daemon).
But this is not enabled by default, check with \\
> service dhcpcd status \\
If "Unit dhcpcd.service could not be found." then the random IP is set from Fritz!Box, \\
If found, you can disable (not recommended):
{{{
> sudo vi /etc/dhcpcd.conf
> slaac private # change to "slaac hwaddr"
> sudo service networking restart
}}}
see Heimnetz > Netzwerk > YourDevice > Heimnetz > "IPv6-GUA-Temporary" \\
The official IPv6-GUA (Global Unicast-Address) is another one.\\
But with dyndns we can use the random/temporary one.
!DNS Cache Lookup / Purge
* Firefox: about:networking#dns
* Chrome: chrome://net-internals/#dns
* Edge: edge://net-internals/#dns
* Windows:
** > ipconfig /release + ipconfig /flushdns + ipconfig /renew
** > ipconfig /displaydns|findstr pi5
* Linux:
** > sudo nmcli general reload dns-full
Zeile 106: 3 Zeilen gelöscht.
Diese Seite (Version-58) wurde zuletzt am 29-Dez.-2024 12:26 von Administrator geändert.Top