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--- global [2026-10-08 15:31] – victor
+++ global [2026-10-08 15:52] (current) – victor
@@ Line 36: / Line 36: @@
 I'm thinking about this. The old WHO-AM-I and TI-WHO-AM-I protocols are not quite sufficient, and full-blown DHCP is a bit overkill.
-===== - If you don't have a domain =====
+==== - If you don't have a domain ====
 You can ask to get added to (a subdomain of) Chaosnet.NET.
 I am very reluctant to((Read that as "I will not")) add Chaosnet DNS info for domains none of us are in control of, since they might discover and complain, with possible legal and financial results.
+===== - Changing your Chaosnet address =====
+After joining the Global Chaosnet, you may need to change the Chaosnet addresses of your local hosts. How you do that of course depends on what kind of operating system and emulator you use.
+==== Emulators ====
+  * For PiDP-10 systems, which typically run a simh KA emulator, see [[https://github.com/simh/simh/blob/master/doc/ka10_doc.doc|the documentation]] and look for "SET CH NODE=".
+  * For ITS under klh10, you need to change the `myaddr` parameter of `devdef chaos`.
+  * For CADR systems under usim, you may need to change the `bridgechaos` config (but this info may be outdated).
+==== Operating systems ====
+  * For TOPS-20, edit `SYSTEM:CHAOSNET.ADDRESS` (no changes are needed for the emulator since TOPS-20 uses Chaos-over-IP).
+  * For ITS, you need to edit `SYSHST;H3TEXT` and run `:SYSHST;H3MAKE`, ideally *before* you change the emulator configuration (since ITS might not like it if it doesn't find the name of its address).
+You also need to make sure the cbridge configuration matches the changes you do: typically you change `link chudp` (e.g. for PiDP-10 or usim systems) and `link ip` (for TOPS-20) lines.
 ===== - Configuration examples =====