3
votes
Accepted
MX record pointing to a dynamic IP
MX record never points to an IP, "static" or "dynamic". Period. It points to some domain name which is the name of the server who should process the incoming mail for a domain in ...
- 14.2k
3
votes
IP address limit
Assuming you're using a /24 (255.255.255.0) subnet mask then the limit is 254 ip addresses usable by host systems. If you want to enlarge that address range (increase the number of host usable ip ...
- 111k
3
votes
How to manage redundant ISPs with dynamic DNS
I use AWS Route53 health checks for inbound DNS resolution and internet failover.
Create a health check.
Create an public DNS entry for each service.
Associate the health check with the DNS entry.
- 199k
2
votes
SNMP: How to monitor devices that do not have static IP adress with Zabbix
You can set Zabbix to connect to DNS in your host config:
- 5,360
2
votes
How to use nsupdate to update a wildcard dns record
Better late than never? I'll just add my answer here since I found your question when looking for an answer myself.
Just "slashing" the asterisk worked out fine for me.
update add \*.domain.com 600 ...
2
votes
Accepted
How to run DHCPcd on interface eth1 only
No, your approach isn't correct. Raspbian uses dhcpcd instead of /etc/network/interfaces (which is considered deprecated) by default. But as you've already configured your statics IPs through that ...
- 1,382
2
votes
MX record pointing to a dynamic IP
You need 1 domain you own (or at least can set records for)
You need a subdomain from a dynamic DNS provider which updates (the A record of) your BenjaminBarroisHomeIP.example.com every time your IP ...
- 658
2
votes
MX record pointing to a dynamic IP
As others have said already, standing up a SMTP server on a new IP is something to be avoided like the plague. Not only does most ISPs block tcp/25 everywhere they can, aka. every single consumer ...
- 3,606
1
vote
Netplan- How to configure a static IPv6-address and SLACC
Yes, It is possible. You should edit the netpplan configuration file (etc/netplan/config.yaml) and here is a example to achieve your goal.
dhcp4: no
dhcp6: no
addresses:
- "YOUR_IPV6&...
- 44
1
vote
My debian server have a dynamic ip address. Have one program like a vpn to give
There might be VPN providers out there that will allow port forwarding but I don't think this is very common.
Another option would be to use ngrok basically it will create a URL pointing back to your ...
- 141
1
vote
Accepted
DHCP server failover with dynamic bootp range declaration
From your own log output:
The failover protocol itself does not permit dynamic bootp - this is not a limitation specific to the ISC DHCP server. Please don't ask me to defend this until you have read ...
- 1,316
1
vote
Accepted
ISP configured Dynamic IP is different from what websites see when I access them
The 100.64.0.0/10 subnet is Shared address space
Not a valid public IP address, if you try to connect to that address from the same ISP it might work, but it is not globally routable.
The reason for ...
- 1,316
1
vote
ansible Dynamic inventory Hosts value does not accept list of hosts
Apart from the above error, you can get the same error if you are using a .ini hosts file. Change the extension to a .yml file to match the actual file format. Mine was that simple and it was resolved ...
- 11
1
vote
Accepted
How to manage redundant ISPs with dynamic DNS
It depends on your dual WAN router's features, but I believe the most straight-forward solution could be to make the router to use ISP/WAN 2 only when it detects that ISP/WAN 1 is down. This way you ...
- 50.9k
1
vote
What are our possibilities when we have dynamic IP and want a mail server behind it?
Public MX Server on DHCP
While folks are correct in that it will not work (as stated), there is a way around this. You will need a VM with an IP that has a good reputation (never sent spam).
Set up ...
- 2,869
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