Charles Campbell wrote:
> Hello!
>
> I'm pretty sure that I'm running into a security blockade.  I have
> several small example sockets programs which have compiled and worked in
> the past on other platforms.  However, they are not working under SL
> 6.3, even when I change ports multiple times.
>
> I have:
>
>     * disabled SELINUX  (I first tried setenforce 0 as root to make it
> simply permissive, but no luck, so I disabled it instead)
>     * turned iptables off:  /etc/init.d/iptables stop
>
> Still, after having done both of these, I can't get a simple socket and
> client example to work.  The /var/log/messages file simply shows my
> shutting off of iptables.
>
> Is there another thing that I can do to get some simple sockets examples
> to work?   I figure once I have located the problems, I can begin to
> attack the rules needed to get it to work.
>
Upon revisiting this problem:

   * disabling selinux on my laptop (with SL6.3) did result in my 
example  sockets programs to work on my laptop.  Not sure why it didn't 
work before, although perhaps I only tested this disabling with the desktop.

   * disabling selinux on my desktop (with SL6.3) still has 
difficulties.  The sockets programs hang on accept()/connect() calls.   
The major difference that I see between the two is that the desktop is  
running SL6.3 in a VM (vmWare 7.0).

FYI - I ran the sockets program using sockaddr_in although both the 
server and client resided on the same machine.

Anyway, looks to me like there's something awry with the vmWare+SL6.3  
combo which is blocking the socket connections from occurring.

Regards,
C Campbell