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[leafnode-list] Re: xinetd on centos 7 install

On 30-5-2015 13:42, Doug Laidlaw wrote:
On Sat, 30 May 2015 11:54:33 +0200
Matthias Andree <matthias.andree@xxxxxx> wrote:

Am 30.05.2015 um 10:30 schrieb Danil Smirnov:
Thanks Matthias!

Good question.

Can you connect internally?

I'm not familar with any console nntp readers. Are there easy way
to do that?

Is xinetd actually running or is just some configuration tool
listing it (or leafnode) as enabled?

Can you check, for instance, with netstat or lsof, what process is
listening on port 119?  What address is the listener bound to?
Should be the wildcard (

lsof -i | grep xinetd
xinetd     7581     root    5u  IPv6 16752624      0t0  TCP *:nntp

Hm, does this mean that is listen with TCP6 only?

I presume so, on Ubuntu Linux 14.04 LTS,
I get this lsof for Postfix's smtp port (one IPv4 and one IPv6):

master  5156 root   12u  IPv4  22130      0t0  TCP *:smtp (LISTEN)
master  5156 root   13u  IPv6  22131      0t0  TCP *:smtp (LISTEN)

I do not have the CentOS 7 manuals here, only Fedora 20, and there

	flags = IPv4 IPv6

might help. Check the xinetd.conf manual.

Just for comparison, I have Leafnode running on Mageia5 RC, with a new
ipv6-compliant router, and I get:

$ sudo lsof | grep nntp
xinetd     3073                   root    5u     IPv4
24976          0t0        TCP *:nntp (LISTEN)


luuk@opensuse:~> sudo lsof | grep nntp
xinetd 1133 root 5u IPv4 11041 0t0 TCP *:nntp (LISTEN)

luuk@opensuse:~> cat /etc/xinetd.d/leafnode
service nntp
        disable         = no
        socket_type     = stream
        protocol        = tcp
        wait            = no
        user            = news
        server          = /usr/sbin/leafnode

In my /etc/xinetd.conf i have:
    v6only          = no

running opensuse 13.1

to test if this server is working, you can do:
luuk@opensuse:~> telnet opensuse nntp
Connected to opensuse.
Escape character is '^]'.
200 Leafnode NNTP Daemon, version 1.11.10 running at opensuse.example.com (my fqdn: somewhere.example.com)
205 Always happy to serve!
Connection closed by foreign host.

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