Commit Graph

12 Commits

Author SHA1 Message Date
Brian Cunnie
7d6b724cbe Remove traces of nameservers ns-aws, ns-azure
- ns-aws & ns-azure have been replaced by ns-hetzner & ns-ovh
- ns-azure has been completely destroyed (`terraform apply -destroy`);
  the elastic IP has been released, so there's no hope of bringing it
  back.
- ns-aws has been renamed to "blocked.sslip.io". It no longer answers
  DNS queries, but lives on as the website we point "blocked" queries to
  that warns about phishing.
- Some of the Markdown files' changes were mere reformatting changes
2025-01-04 11:28:40 -08:00
Brian Cunnie
b497beddd2 Deprecate custom listLocalIPCIDRs()
We don't need a custom `listLocalIPCIDRs()`; Golang now has a builtin:
`net.InterfaceAddrs()`. [0]

This is one of those wonderful commits that removes more lines than it
adds.

[0] https://pkg.go.dev/net#InterfaceAddrs
2024-12-03 11:21:06 -05:00
Brian Cunnie
3ed466bc74 Placate the linter
- check for errors when I was previously skipping them
- use module `time` better

Drive-by: Shorter way to copy the new `index.html` to the 5 servers.
2024-11-17 07:22:37 -08:00
Brian Cunnie
8c89816eeb 🐞 ns.sslip.io → +ns-hetzner, -ns-azure
When I had introduced ns-hetzner, I forgot to update the records for
ns.sslip.io, which continued to point to the old, deprecated ns-azure.

This commit updates the ns.sslip.io records.
2024-11-17 06:54:33 -08:00
Brian Cunnie
ce852009c5 "ns-azure is dead, long live ns-hetzner"
The nameserver on Azure is probably my least-favorite: much slower, much
higher latency. Even though it would've made more geographic sense to
dismantle my GCP nameserver in favor of the Hetzner, I'm using this
opportunity to get rid of the Azure.

And, of course, introduce the Hetzner nameserver with its 20TB of
bandwidth allowance, which I've come to need.
2024-11-16 16:02:25 -08:00
Brian Cunnie
34318bbb43 Retire DNS server, ns-aws.sslip.io
The torrent of traffic I'm receiving has caused my AWS bill to spike
from $9 to $148, all of the increase due to bandwidth charges.

I'm still maintaining ns-aws; the VM still continue to run, and continue
to serve web traffic, and maintain its hostname and IP addresses;
however, it will no longer be in the list of NS records for sslip.io.

There are much less expensive hosting providers. OVH is my current
favorite.
2024-11-04 17:56:03 -08:00
Brian Cunnie
1f7a54db73 Revert "Introduce new flag, -max_queries_per_sec"
Rather than bloating the code with yet another flag, one that only I
would use, and in only one specific case (ns-aws.sslip.io), it would be
better to simply take ns-aws.sslip.io out of the NS list.
2024-11-04 07:16:52 -08:00
Brian Cunnie
9c8712578d Introduce new flag, -max_queries_per_sec
I'm being gouged by bandwidth costs by AWS. Last month's bill was $148,
and all but $9 was about bandwidth.

My bandwidth has been inexplicably climbing since February:

Billing
Month   Total GB % increase

2024/2		  37.119
2024/3		  52.953	42.66%
2024/4		  58.745	10.94%
2024/5		  69.307	17.98%
2024/6		 173.371	150.15%
2024/7		 334.064	92.69%
2024/8		 539.343	61.45%
2024/9		 568.745	5.45%
2024/10	1365.305	140.06%

The new flag will allow me to throttle the AWS bandwidth to ~287 queries
/ second, which, according to my calculations, will max out the free
100 GB bandwidth without dipping into the for-pay bandwidth.
2024-11-03 17:35:46 -08:00
Brian Cunnie
6855598f0f Introduce new name server, ns-ovh.sslip.io
- located in Warsaw, Poland
- IPv4: 51.75.53.19
- IPv6: 2001:41d0:602:2313::1

The crux of this is to take the load off ns-aws, which jumped from
$12.66 → $20.63 → $38.51 → $62.30 in the last four months due to
bandwidth charges exceeding 10 TB.

The real fix is to randomize the order in which the nameservers are
returned.
2024-09-15 17:21:16 -07:00
Brian Cunnie
093fc5dadf Appease/placate/mollify the linter
- Unnecessarily handle the error in the `defer`
- Do a better comparison of the address-in-use error
2024-06-15 18:49:18 -07:00
Brian Cunnie
8a08e49034 Flag -delegates for delegated domains
Meant for obtaining wildcard certs from Let's Encrypt using the DNS-01
challenge.

- introduce a variant of `blocklist.txt` to be used for testing
  (`blocklist-test.txt`) because the blocklist has grown so large it
  clutters the test output
- more rigorous about lowercasing hostnames when matching against
  customized records. This needs to be extendend when we parse _any_
  arguments

TODOs:

- remove the wildcard DNS servers
- update instructions
2024-06-08 19:40:09 -07:00
Brian Cunnie
1bdd03fd39 Promote Golang code to the root of the repo
- That's where the code is expected to be
- The only reason the code was buried two directories down was because
  it was originally a BOSH release
- There hasn't been a BOSH release in over two years; last one was Feb
  26, 2022
- Other than a slight adjustment to the relative location of
  `blocklist.txt` file in the integration tests, there were no other
  changes
2024-05-11 10:14:23 -07:00