[pve-devel] [PATCH docs 1/3] pveproxy: add note about bindv6only sysctl
Stoiko Ivanov
s.ivanov at proxmox.com
Tue May 4 12:12:20 CEST 2021
Seems certain hosting environments (e.g. OVH) set net.ipv6.bindv6only
to 1, which caused problems for those users after the 6.4 upgrade.
Signed-off-by: Stoiko Ivanov <s.ivanov at proxmox.com>
---
pveproxy.adoc | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/pveproxy.adoc b/pveproxy.adoc
index 8d02418..665e575 100644
--- a/pveproxy.adoc
+++ b/pveproxy.adoc
@@ -62,6 +62,9 @@ The default policy is `allow`.
Listening IP
------------
+By default the `pveproxy` and `spiceproxy` daemons listen on the wildcard
+address and accept connections from both IPv4 and IPv6 clients.
+
By setting `LISTEN_IP` in `/etc/default/pveproxy` you can control to which IP
address the `pveproxy` and `spiceproxy` daemons bind. The IP-address needs to
be configured on the system.
@@ -102,6 +105,12 @@ long-running worker processes, for example a running console or shell from a
virtual guest. So, please use a maintenance window to bring this change in
effect.
+NOTE: setting the `sysctl` `net.ipv6.bindv6only` to `1` will cause the daemons
+ to only accept connection from IPv6 clients. This non-default setting usually
+ also causes other issues. Either remove the `sysctl` setting, or set the
+ `LISTEN_IP` to `0.0.0.0` (which will only allow IPv4 clients).
+
+
SSL Cipher Suite
----------------
--
2.20.1
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