Resolvers
net/resolvers.md, current. One row per address that appears in a
/etc/resolv.conf anywhere in the estate, per the quarterly sweep.
| Address | Name | Added | Added by | Zone served | Queries/day | Notes |
|---|---|---|---|---|---|---|
| 192.0.2.1 | ns-a.fen.internal |
2014-06-02 | build | fen.internal |
4.1 M | Primary. Anycast with ns-b |
| 192.0.2.2 | ns-b.fen.internal |
2014-06-02 | build | fen.internal |
3.9 M | Secondary. Anycast with ns-a |
| 192.0.2.9 | ns-lab.fen.internal |
2021-11-30 | m.reyes | lab.fen.internal |
11 K | Lab only. Do not add to production images |
| 192.0.2.53 | — | — | — | — | 0 | Answers |
Sweep notes, appended by the sweep, not by a person:
| Sweep | 192.0.2.53 present in | Reachable | Serial |
|---|---|---|---|
| 2022-Q1 | 0 hosts | — | — |
| 2022-Q2 | 0 hosts | — | — |
| 2022-Q3 | 1 host (bastion-02) |
yes | 2022093001 |
| 2022-Q4 | 4 hosts | yes | 2022093001 |
| 2023-Q1 | 11 hosts | yes | 2022093001 |
| 2023-Q2 | 38 hosts | yes | 2022093001 |
| 2023-Q3 | 106 hosts | yes | 2022093001 |
| 2023-Q4 | 291 hosts | yes | 2022093001 |
| 2024-Q1 | 604 hosts | yes | 2022093001 |
| 2024-Q2 | 1,180 hosts | yes | 2022093001 |
| 2024-Q3 | 1,181 hosts | yes | 2022093001 |
| 2024-Q4 | 1,181 hosts | yes | 2022093001 |
| 2025-Q1 | 1,181 hosts | yes | 2022093001 |
| 2025-Q2 | 1,181 hosts | yes | 2022093001 |
| 2025-Q3 | 1,181 hosts | yes | 2022093001 |
| 2025-Q4 | 1,181 hosts | yes | 2022093001 |
| 2026-Q1 | 1,181 hosts | yes | 2022093001 |
| 2026-Q2 | 1,181 hosts | yes | 2022093001 |
The estate has 1,181 hosts.
| Query | 192.0.2.1 | 192.0.2.53 |
|---|---|---|
ns-a.fen.internal |
192.0.2.1 |
NXDOMAIN |
bastion-02.fen.internal |
192.0.2.19 |
NXDOMAIN |
hesper-01.fen.internal |
192.0.2.31 |
NXDOMAIN |
kestrel-04.fen.internal |
NXDOMAIN |
192.0.2.104 |
gate-02.fen.internal |
NXDOMAIN |
192.0.2.41 |
hesper-04.fen.internal |
NXDOMAIN |
192.0.2.34 |
sched-a.fen.internal |
NXDOMAIN |
192.0.2.61 |
See stories/kestrel-04, stories/eleven-year-check, stories/quorum, stories/nightly-0300.