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diff --git a/content/2022/ddns.md b/content/2022/ddns.md deleted file mode 100644 index abb94c2..0000000 --- a/content/2022/ddns.md +++ /dev/null @@ -1,156 +0,0 @@ ---- -date: 2022-05-13T20:17:00+02:00 -draft: false -category: "engineering" -year: 2022 -title: Adding dynamic DNS to the home server -tags: -- homeserver -- DDND -- DYI -- DNS -abstract: A brief analysis of existing DDNS services. ---- -I am one of the unlucky ones without static IP address. I would get one from my ISP, but this would require me to upgrade to a business contract. And to do such upgrade, I would need a company - which I do not own nor have I any plans to own in the near future. Luckily, I can still have a domain. There is a group of services under the umbrella term Dynamic DNS. -<!--more--> - -[DDNS on Arch Wiki](https://wiki.archlinux.org/title/Dynamic_DNS) - -Basically, I need to point my domain to their name server and keep them up to date with changes of my IP. The DDNS server acts as a middle-man when using a normal domain. In most cases, I just need to fetch a given URL periodically ad the service will treat this as current IP set. - -## Self hosting vs 3rd party - -There are ready-made packages I could instal on any VPS, but debugging DNS is not something I would like to do. Therefore, I will go with 3rd party. - - -I looked through the interwebs for providers and found lots of them. Unfortunately, most of them are dead, so the choice is much less difficult. - - -## Requirements - -After a short analysis, I came up with few requirements: - -``` -Max number of domains........................3 -Max number of subdomains per domain.........20 -Expected uptime..........................>95.5 -Location............................Europe/USA -MX Records.................................YES -TTL.....................................<10min -``` - - -## Instant rejects - -I instantly rejected some providers, since they will now work for my use case: - -``` -| Service | Reason? -|-----------------------+----------------------------- -| activedns.co.za | South Africa only -| bcu.cc | Site does not open -| ddns.nu | Site does not open -| dhcp.io | Domain for sale -| dhs.org | Site does not open -| dns.widge.net | Site does not open -| dnsdynamic.org | Some random site under the address -| dnsmadeeasy.com | It's namecheap now -| dnspark.com | It's namecheap now -| dtdns.com | Broken site -| dyn.ee | Domain for sale -| dyn.ro | Domain for sale (I think) -| dynamicdomain.net | Site reads like poor phising attempt -| dyndsl.com | Domain for sale -| domain-dns.com | Not accepting new zones -| dyndnsservices.com | Offers self-host only -| dynfree.com | Broken site -| dynup.net | Broken site -| hldns.com | No longer offers DDNS -| hn.org | Site does not work -| homepc.org | Site does not work -| hub.turnkeylinux.org | Site does not work -| microtech.co.gg | Site does not work -| minidns.net | Site does not work -| myonlineportal.net | Only 10 domains per account -| myserver.org | Broken site -| nettica.com | Domain for sale -| nicolas.cx | No sign-up via web -| nubem.com | Site does not work -| ods.org | Domain for sale -| powerdns.com | Self hosted solution -| prout.be | Self hosted solution -| spdns.de | No english site -| system-ns.com | No longer offers DDNS -| tzo.com | Site does not work -| whyi.org | Site does not work -| worldwidedns.net | Does not support enough zones -| xname.org | Site does not work -| yi.org | Site does not work -| zerigo.com | Site does not work -``` - -## The potential ones - -After removing most positions from list, I dig a big deeper: - -``` -| Service | Price | Uptime | Location -| | per year | | -|-----------------------+---------------+-----------+--- -| changeip.com | $6 | 99.9% (1) | USA -| dhis.org | Donation | ? | ? -| dns2go.com | lots$ | ? | ? -| dnsexit.com | FREE for TLD | 100% | Distributed -| duckdns.org | FREE | ? | ? -| duiadns.net | $11 | ? | ? -| dynaccess.de | 22EUR | ? | Germany -| dynamip.com | $48 | ? | ? -| dyndns.berlin | FREE | ? | Germany -| dyndns.com | $55 | ? | ? -| dyndns.dk | FREE | ? | ? -| dynip.com | lots$ | ? | ? -| dyns.cx | Donation | ? | ? -| dynu.com | FREE | 100% (2) | Distributed -| easydns.com | FREE | 100% | ? -| freedns.afraid.org | $60 | ~99.3%(3) | ? -| noip.com | $24.99 | 100% (2) | ? -| planetdns.net | $299.95 | ? | ? -| staticcling.org | FREE | ? | ? -| thatip.com | $48 | ? | ? -| thebbs.org | FREE | ? | ? -| totaluptime.com | $1188(SIC!) | ? | ? -| zonomi.com | lots$ | ? | ? - ``` - - [(1) whtop.com](https://www.whtop.com/review/changeip.com) - - [(2) comparingtech.com](https://www.comparitech.com/net-admin/dynamic-dns-providers/) - - [(3) dnsperf.com](https://www.dnsperf.com/dns-provider/afraid-org) - -Notes: -- "?" - I couldn't find data, but also I wasn't looking very hard -- "lots$" - some providers have a complicated pricing and at first glance it was obvious, that it will be expensive. - - As we see, some working providers are crazy expensive. They add extra features, but still - crazy expensive. - -## Conclusion - -DDNS is a strange market. It's mostly dead. But when the service is still available, it seems to be run from someone's basement. There are companies in the space, don't get me wrong - but most of it looks like hacker culture byproduct. And this makes sense, since the primary use case for DDNS is someone without static IP - ergo, an individual and not a company. - -The sad aspect of this is lack of any SLAs in most cases. - -The happy aspect of this is that you can get a lot for very little. - -## Decision - -Looking at the data, I have decided to go with dynu.com as it has 100% uptime, and it's free. - -## Setting up dynu.com on Synology - -First, create a dedicated IP update password on dynu.com. It's optional, but highly recommended. - -Then, in Synology Control Panel open External Access, then click on "DDNS" tab. Click "Customize Provider" and set query URL to - -``` -https://api.dynu.com/nic/update?myip=__MYIP__&username=__USERNAME__&password=__PASSWORD__&hostname__HOSTNAME__&myipv6=no -``` - -Now, add a subdomain. Note, that it would be best to MD5 the password. |