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20

Seems like it's a bug in recent DD-WRT builds. Use iptables: iptables -t nat -I POSTROUTING -o br0 -s 192.168.1.0/24 -d 192.168.1.0/24 -j MASQUERADE (change your subnet according to your specific LAN) From http://hax.at/text/41


16

You cannot set a CNAME record for a root domain (e.g., example.com) because that would break RFC 1034 section 3.6.2, which states, If a CNAME RR is present at a node, no other data should be present; this ensures that the data for a canonical name and its aliases cannot be different. You can’t do this for example.com because example.com will also have ...


16

Famous one – I can haz IP: $ curl icanhazip.com 1.2.3.4 And that's it.


13

You can do that with the command: ipconfig /flushdns edit: You need to first write cmd into the search box. That will open a command prompt.


7

ssh is asking again; just because you connected to a host doesn't mean you trust that host to be the real something.there.foo. You can compare the fingerprints to check they are indeed the same host: diff -u <(ssh-keygen -F something.there.foo -l) <(ssh-keygen -F xx.xx.xx.xx -l) There are ways to put the key fingerprint in DNS, but without DNSSEC ...


6

It sounds like you might be a litle bit confused as to the difference between DynDns and port-forwarding. DynDns provides hostname resolution for your public IP address, or the "global" IP address of your router. Whenever your ISP assigns you a new public IP, the DynDns client (typically on your router) updates the DynDns servers. Port-forwarding takes ...


6

bind v9 has support for dynamic updates: zone "example.net" { type master; file "zones/example.net.db"; update-policy local; auto-dnssec allow; key-directory "keys/example.net"; }; You can use nsupdate to manage the zone locally, or call nsupdate from a CGI script (accessed by the client PC, like DynDNS updater), or use nsupdate ...


6

You have some misconceptions, so I'll try to explain the whole process. (I'm good with the details since I involved in operating a public dynamic DNS service). Let's say your domain is example.com, and let's say example.com domain hosted with some dynamic DNS company, let's call it lightfastdns.net (fictional name). Your domain contains DNS record - ...


5

Your not doing anything wrong, this is exactly how dyndns works. Dyndns is returning your public ip for your home internet connection, which the router responds on. Because you are inside the network it is assuming you want to connect to the router itself and not the port forwarding rules because you are already behind the firewall. To be able to use your ...


5

The URL provided by DynDNS should always point to your external IP address, however you need to make sure that DynDNS updates your record if your IP address changes. For some ISPs, this isn't necessary, while for others your IP could change on a daily basis. To do that, there are two possibilities: Your router is DynDNS-capable and will allow you to enter ...


5

Yes, the issue is because you're behind a router. The best solution would be to see if you can install a ddns client on the router itself. Otherwise there are ddns update tools that finger a remote server and ascertain your IP by what this yields. This can be done by replacing: use=if, if=eth0 With this: use=web, web=checkip.dyndns.org/ Which is ...


4

Running an email server on dynamic DNS, while certainly possible, is a bad idea. Here's why: http://www.arschkrebs.de/postfix/postfix_why_dyndns_does_not_work.shtml If you don't want to get a static IP, then I'd suggest checking into the various email hosting services (google for "email hosting") and see if one of those might fit your needs.


4

You can not set naked domain name in CNAME records. You must have to do ONLY those settings for alias domains like www.example.com , about.example.com and more at CNAME records and the primary or ROOT domain settings must be done at A Records and you have to provide IP address of host. First delete the settings from CNAME about the naked domain and set it ...


4

You can remotely access SSH shell to your computer without IP Public using desktop or just a smart phone (e.g. Android) by installing robotito in your computer that u want to access SSH remotely. This will allow you to access SSH using from Google Talk Client Apps anywhere. There is no need for a public IP address or special setting. I'ts Free and Open ...


4

First of all, this AirPort feature relies on a working "dynamic DNS" setup. If you let someone else host your domain and manage your DNS, get them to set it up and get the TSIG key name and private key for updates. If you manage your own, first follow a tutorial on configuring dynamic updates in your DNS server. Afterwards: In the (dynamic global) ...


3

No. The change does not need to propagate to every DNS server in the world. If you change something and someone queries the changed record on your DNS server the result is instantaneous. The problem is if you queried this name before and it got cached. Then you will get the old IP until the cache expires. In DNS you can set how long an old query is valid, ...


3

My previous answer contained false information because I had a few misconceptions regarding how DNS changes are propagated. So here is a second attempt. For a detailed explanation, I encourage you to read Alex answer. To my understanding, there are 2 factors involved in how quickly a DNS change propagates: Zone transfers between the DNS servers that are ...


3

2. There is a command line client for MacOS - inadyn. Inadyn is configurable and supports different Dynamic DNS providers. Also with some services you can use simple curl run as a cron job as a client. curl is a command-line tool, and is installed by default on MacOS. For an examples of how to do dynamic DNS with command-line, you can look at instructions ...


3

So, the support team at AVM was incorrect, the URL for updates supports placeholders for things like IP address. The one for IPv6 address is not listed on the help page but is <ip6addr>. Together with freedns's address field this lets me solve the problem. The following ended up working for me: ...


3

If you haven't accessed the server via something.there.foo, it will ask even if you've accessed the same server via other methods (ip address or alternate domain).


3

For DynDns to work automatically, you need a router that supports dynamic DNS. I'm not familiar with the Airport, but in my D-Link router, there is a Dynamic DNS page where I put in my login information. The router then automatically updates my DNS settings every time my public IP address changes. If your router doesn't support that feature, you'll need ...


3

Static IPs are used to make sure that they will always be accessible from the outside work at a consistent address. While it is possible to do without one with something like DynDNS, if you are running a server that is meant to be externally accessible, you should have a static IP. With regard to the IPv4 or IPv6 part, your should support both, though it ...


3

In this situation I would recommend just using LogMeIn. It is a simple to use, secure remote desktop solution that works PC-PC, Mac-Mac, PC-Mac, and Mac-PC. It is browser based, so there is no software to install on the viewing machine, and only a small application to install on the host machine. Their website allows you access to all of the hosts you have ...


3

Both dyndns and, for example, freedns work, but your testing method is invalid. You should specify that you want AAAA entry in the DNS request: $ dig -t AAAA vi.dyndns.org | egrep -v '^$|^;' vi.dyndns.org. 172680 IN AAAA 2001:0:53aa:64c:c5b:4f1e:a9c6:61b1 $ dig -t AAAA vi0oss.twilightparadox.com | egrep -v '^$|^;' vi0oss.twilightparadox.com. ...


3

Just to add to the already helpful answers, here's confirmation from GoDaddy that as of 1 week ago (May 2012) they do not directly support dynamic DNS: http://support.godaddy.com/groups/domains-management-and-services/forum/topic/dynamic-ip-1/ Sounds like you would be best off migrating your domain to another company. If you like No-IP they can handle a ...


3

See your router's manual... Sounds like you have it badly misconfigured if the management page is publicly available.


3

There's a few options. Pagekite sounds the most simple and direct - it does everything you ask for and is publically accessible You might be able to go with some form of reverse ssh and tunnel everything through that. You'd need to establish the connection from the campus network to your home connection (where you'd need to set up port forwarding and such), ...


2

Your webserver is redirecting but has not been configured with a DNS name so uses it's internal IP_address in the redirection response. Configure the domain name in the webserver software.


2

That has got nothing to do with your router. You need to add your domain name to the web-server. If you are using apache, then you may have to add your domain name to the vhosts file. Read more here: http://support.aiso.net/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=243



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