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TCP wrapper cannot resolve netbios addresses?

I recently reconfigured my Linux systems to exchange their hostname via NetBios name server, in broadcast mode. Basically, it means that I appended wins in the hosts line of /etc/nsswitch.conf; I ...
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1answer
135 views

Can /etc/hosts.deny/allow be overridden?

I have security measures put in place to keep unwanted users out of my server. I've changed the SSH port, disabled root login, have a software firewall to block portscans, and have entries in ...
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2answers
148 views

What services does hosts.allow NOT affect?

I know that hosts.allow and host.deny only affect things that are tcpwrappered, but what does this mean in practice? It seems that most people use hosts.allow to handle ssh and nfs blocking, but what ...
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2answers
628 views

Allowing access to MPD from local network

I have successfully installed MPD (Music Player Daemon) on my desktop computer. Everything works fine when the client runs on the same machine as the server. Now I would like to access MPD from my ...
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2answers
1k views

Linux: hosts.allow, hosts.deny - how do I allow all except hosts mentioned in hosts.deny

How do I configure hosts.allow and hosts.deny to allow all connections from all hosts except for some hosts/ports specified in hosts.deny? This is what I have now in these files: hosts.allow: ...
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6answers
372 views

Accessing IP restricted server from dynamic IP

Our servers (all CentOS) are all restricted by IP but often i am out and about and stuck on a dynamic IP address. Using a DynDNS widget I have set this dynamic IP to always sync with a DynDNS hostname ...
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2answers
186 views

What exactly is handling hosts.allow and hosts.deny?

On a Linux machine, there is hosts.allow and hosts.deny to either allow or deny certain hosts to access services running on the machine. The question is, what exactly is taking care of allowing or ...