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Updates for peering page. #1316

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merged 5 commits into from
Apr 26, 2023
Merged

Updates for peering page. #1316

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15a7c7d
Updates for peering page.
non-fungible-nelson Apr 25, 2023
1179184
wording tweak
non-fungible-nelson Apr 25, 2023
aea4208
lint
non-fungible-nelson Apr 25, 2023
9de6b5c
Merge branch 'main' into peering-adds
non-fungible-nelson Apr 25, 2023
26413f2
minor edits
Apr 26, 2023
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17 changes: 16 additions & 1 deletion docs/public-networks/how-to/troubleshoot/peering.md
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Expand Up @@ -18,6 +18,9 @@ If you have peering issues, start by [configuring your ports](../connect/configu
- Your ports aren't open in your firewall and/or router.
- Your node is sending large numbers of DNS requests.
See [issue #4375](https://github.com/hyperledger/besu/issues/4375).
- You're using [checkpoint sync](../../get-started/connect/sync-node.md#checkpoint-synchronization),
which doesn't download all historical block data, so your peers may disconnect you when
fetching those blocks.
- Your node is experiencing the normal behavior of peers connecting and disconnecting.
This is especially normal soon after you start your node.

Expand All @@ -27,7 +30,7 @@ If you have peering issues, start by [configuring your ports](../connect/configu
inbound connections.
- Restart Besu.
This can take a while to build up again.
- Set `-Xdns-enabled` to `true`.
- Set `-Xdns-enabled` to `true` (only for private networks).
- Set `-Xp2p-peer-lower-bound` to a minimum number of peers.
- Delete the node key (which is autogenerated in your data directory).
There are two reasons that this might help find more peers:
Expand All @@ -40,6 +43,18 @@ If you have peering issues, start by [configuring your ports](../connect/configu
[Prysm EL and CL peering documentation](https://docs.prylabs.network/docs/prysm-usage/p2p-host-ip)
for more information.

??? question "What network or router/modem settings should I check?"
Check the following settings:

- Your machine and router's specified DNS should support TCP.
You can check your DNS online for TCP support.
Google and Cloudflare, 8.8.8.8 and 1.1.1.1, support TCP over port 853.
Other DNS might as well.
- The appropriate ports should be open on your router, or your router should have UPNP enabled.
See the next FAQ for more information on router settings.
- If you use [Docker](https://docs.docker.com/network/network-tutorial-host/) or virtualization,
the container should be able to create outbound connections on the host machine.

??? question "How do I open/forward my ports?"
If you’re behind NAT, you probably need to set up port forwarding in your router.
You might also need to configure your firewall.
Expand Down