OT: Centos 6 question

Ken A ka at pacific.net
Tue Dec 27 15:07:23 GMT 2011


On 12/22/2011 3:02 PM, Jeremy McSpadden wrote:
> or chkconfig iptables stop .. until you get around to building the rules out

but _do_ get around to it, since otherwise you leave yourself open to a 
variety of attacks on other 'running' things.
Ken




> Jeremy McSpadden
> Flux Labs, Inc
> http://www.fluxlabs.net<http://www.fluxlabs.net/>
> Endless Solutions
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>
> On Dec 22, 2011, at 2:46 PM, Alex Neuman van der Hans wrote:
>
> Oh, and if you reboot the server it'll load the default rules again - which are "allow SSH and that's it".
> You need to do something like:
>
> echo "# I did this to get rid of the default rules">  /etc/sysconfig/iptables
>
> ... as root in order to wipe the defaults.
>
> On 12/22/2011 3:25 PM, Steve Campbell wrote:
> OK, got the new version installed, turned iptables off (even though 'ps' didn't show them running) and seems well now.
>
> I'm not sure what ps is supposed to show for iptables in this version, but it appears it's iptables that was stopping it.
>
> Thanks all for all the help and have a great holiday.
>
> steve
>
> On 12/22/2011 2:35 PM, Mauricio Tavares wrote:
> See if
>
> yum grouplist | less
>
> gives you any ideas. then you can do, say,
>
> yum groupinfo 'Development Tools'
> yum groupinstall 'Development Tools'
> yum groupremove 'Development Tools'
>
> On Thu, Dec 22, 2011 at 2:12 PM, Steve Campbell<campbell at cnpapers.com<mailto:campbell at cnpapers.com>>   wrote:
> I'm installing 6.2 now. One thing I noticed is that I did not see the little
> "network configuration" box on the install the first time. Once I get this
> installed, I check iptables.
>
> I'm using the "workstation" type install this time. Looking for something
> that gives me the least post-install headaches. Once this is all done, and
> I've got the grouplists installed, I'll see where I'm at.
>
> The types of installation isn't very informative, for instance, does the
> "workstation" install any server type apps, etc. This really belongs on the
> Centos list up to this point, but since the basic server will end up with
> MySQL, a mail server, HTTPD, PHP, and Perl, I was originally asking which
> "type" of installation would get me closest to that configuration.
>
> Thanks all,
>
> steve
>
>
> On 12/22/2011 12:57 PM, Mauricio Tavares wrote:
> You probably checked that, but the vm's NIC is in bridge mode, right?
>
> On Thu, Dec 22, 2011 at 12:36 PM, Jeremy McSpadden<jeremy at fluxlabs.net<mailto:jeremy at fluxlabs.net>>
>   wrote:
> Stop iptables and make sure you can telnet in. then work from there. yes
> the
> network configuration is different.
>
> --
> Jeremy McSpadden
> Flux Labs, Inc
> http://www.fluxlabs.net
> Endless Solutions
> Office : 850-588-4626
> Cell : 850-890-2543
> Fax : 850-254-2955
>
> On Dec 22, 2011, at 11:10 AM, Steve Campbell wrote:
>
>
>
> On 12/22/2011 11:53 AM, Jeremy McSpadden wrote:
>
> The host setup shouldn't matter. Are you able to telnet into the xen vm
> on
> port 25? have you disabled iptables or allowed port 25 through ? Verify
> you
> have connectivity from the outside first, then start working back on your
> config files.
> --
> Jeremy McSpadden
> Flux Labs, Inc
> http://www.fluxlabs.net
> Endless Solutions
> Office : 850-588-4626
> Cell : 850-890-2543
> Fax : 850-254-2955
>
> On Dec 22, 2011, at 10:26 AM, Steve Campbell wrote:
>
> I've tried installing Centos 6.1 on a 5.7 xen host. I'm having a little
> trouble getting sendmail to work, and I'm not sure why. Could be the way
> the
> network NIC is configured, the fact that I'm running 6.1 under a 5.7
> host,
> or who knows, but the server isn't accepting mail at all, even after
> changing the line in the .mc file to accept mail from hosts other than
> localhost and rebuilding the .cf file.
>
> The new GUI for the Centos 6 installation seems to be somewhat confusing
> when it comes to asking what type of installation I would like (types
> being
> things like SQL server, web server etc.)
>
> I'm going to try the new 6.2 DVDs, but wonder what type of installation
> others have chosen since I'm sure there's something closer than the
> Workstation type I chose.
>
> Thanks and sorry for OT
>
> steve campbell
>
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>
> I originally tried just sending mail to the server, and got a bounce. I
> then
> tried telnet, and it too failed. The network setup in 6.1, as I recall,
> is
> nothing like the previous versions of Centos. I eventually installed
> Webmin
> and was surprised at how the NIC was configured from the install when I
> went
> to modify it. I could get to the internet, but sendmail didn't seem to be
> accepting mail. "ps ax" showed it running though.
>
> Thanks
>
> steve
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-- 
Ken Anderson
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