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Alerts/upnp: show banner / describe manual port forwarding

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David A. Harding 2015-10-12 09:10:57 -04:00
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_alerts/2015-10-12-upnp-vulnerability.md
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@ -5,7 +5,7 @@
title: "Vulnerability in UPnP library used by Bitcoin Core"
shorturl: "upnp-vulnerability"
active: true
#banner: "WARNING: serious vulnerability in UPnP library used by Bitcoin Core (click here to read)"
banner: "WARNING: serious vulnerability in UPnP library used by Bitcoin Core (click here to read)"
bannerclass: "alert"
---
@ -54,3 +54,11 @@ makes it harder to use this vulnerability for remote code execution or private
key leaks. However, it is still advised to upgrade, or if not possible, disable
UPnP as soon as possible.
## Manual Port Forwarding
With UPnP turned off, your node will still connect to 8 other peers on
the Bitcoin network to receive new blocks and transactions. However, it
will not accept incomming connections from other peers unless you
manually enable port forwarding on your router. If you wish to do
that---it isn't required---please [follow these
instructions](/en/full-node#network-configuration).