tcpwrappers

[George Toft]

What makes you think Apache is not?  Whe I was at the .com in LA, we had
a script that analyzed Apache log files, and dropped the abuser's IP
netowrk into /etc/host.deny for 48 hours.  That locked him (and a chunk
of his ISP) out so he couldn't redial and continue the attack.

I know for a fact that SNMP is under tpc wrapper control - that was one
of the biggest bitches to solve.

SSH is also controlled by TCP wrappers - I use it as redundancy in case
I make stupid typos and open SSH to my $EXTIF instead of my $INTIF.  I
did this, and I discovered it through looking at my logs.

What I discovered two weeks ago about OpenLDAP was that LOCAL is not the
same as 127.0.0.1.  To every other service I have used in the last 6
years it was, but noooo - not OpenLDAP.

Anyway, it's called TCP wrappers, not inet wrappers, because it affects
all TCP services.  My hosts.allow file looks like this:
	ALL: LOCAL, 127.0.0.1, 192.168.55.
which supports my LDAP, MySQL, Apache and DNS servers.  The 192.196.55
LAN is another interface that needs DNS and HTTP services.

George


Mike Starke wrote:
> 
> Years ago, I seem to recall that the only services
> under control of hosts.allow & hosts.deny were those
> under inetd (/etc/inetd.conf).
> 
> I just spent the past hour trying to figure out why I couldn't
> connect to my new ldap server from a remote site; come to find
> out all I needed was a simple entry in /etc/hosts.allow Being that
> slapd runs as a deamon, I stared at my slapd.conf file and couldn't
> find any reason why a connection was denied.
> 
> Simple question: How does one know when a service is under
> tcpwrappers? Apache & Bind are not, what should have made
> me think slapd was?
> 
> v/r
> Mike
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