[stunnel-users] How to get stunnel to listen on an IPv6 interface?

[jshardlo]

Hi - my server was recently connected to IPv6 as well as the original IPv4
network.

I have been using stunnel for some time on the IPv4 network but now that I
have IPv6 access I can't work out how to get stunnel to listen on that
interface as well.

I checked that my stunnel has IPv6 support:-

/usr/sbin/stunnel -version
stunnel 4.15 on i686-redhat-linux-gnu with OpenSSL 0.9.8e-fips-rhel5 01 Jul
2008
Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv6 Auth:LIBWRAP
 
Global options
debug           = 5
pid             = /var/run/stunnel.pid
RNDbytes        = 64
RNDfile         = /dev/urandom
RNDoverwrite    = yes
 
Service-level options
cert            = /etc/stunnel/stunnel.pem
ciphers         = AES:ALL:!aNULL:!eNULL:+RC4:@STRENGTH
key             = /etc/stunnel/stunnel.pem
session         = 300 seconds
TIMEOUTbusy     = 300 seconds
TIMEOUTclose    = 60 seconds
TIMEOUTconnect  = 10 seconds
TIMEOUTidle     = 43200 seconds
verify          = none

I have a configuration like this:

[pop3s]
accept  = 995
connect = 110

But when I do netstat I can see that it is only listening for port 995 on
IPv4...

netstat -an | grep 995
tcp        0      0 0.0.0.0:995                 0.0.0.0:*                  
LISTEN      

netstat -an -A inet6 | grep 995

And of course when I connect to port 995 over the IPv6 network I get
"connection refused".

Any ideas how to get stunnel to listen on the v6 address?

Thanks !

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