[SOLVED] RHEL Linux

Bhakti1982 · 11-16-2011, 05:43 AM

Hello,
I have set up a RHEL 64 bit, I can ping other machines from that server, however I am trying to ping the Linux server from other machines, I am not able to do so.
Firewall is disabled. Can you please suggest?

bluesatbridge · 11-16-2011, 06:23 AM

firewall on the servers u want to ping and you are pinging from or both the server??

regards

Bhakti1982 · 11-16-2011, 06:26 AM

I am pinging from windows xp to linux, and firewall on both machines is disabled.

lleb · 11-16-2011, 11:47 AM

then the firewall is not disabled, nor is SELinux on the RHE box.

as root type setup and verify that the firewall is off, and that the service ipfilter does not have a * next to it.

you can also just type:

service ipfilter stop

as root to disable ipfilters NOW. this will not turn off the firewall, nor disable SELinux.

Bhakti1982 · 11-17-2011, 02:40 AM

Quote:

Originally Posted by lleb

then the firewall is not disabled, nor is SELinux on the RHE box.

as root type setup and verify that the firewall is off, and that the service ipfilter does not have a * next to it.

you can also just type:

service ipfilter stop

as root to disable ipfilters NOW. this will not turn off the firewall, nor disable SELinux.

------------------------------------------------------------------------------------

setup -- firewall and SELinux is disabled
there is no ipfilter service
when I type service ipfilter stop , I a see 'unrecognised service' message

lithos · 11-17-2011, 03:20 AM

you should try as 'root'

Code:

service iptables stop

and look for SELinux status:

Code:

sestatus

you can read about SELinux here or here

Bhakti1982 · 11-17-2011, 04:00 AM

Thanks, i tried iptables stop, but it didn't solve the problem and sestatus is disabled

Bhakti1982 · 11-17-2011, 04:47 AM

can anyone give me some more suggestions Please?

lithos · 11-17-2011, 05:23 AM

look at disable ping reply

Bhakti1982 · 11-17-2011, 05:40 AM

nooooo.
I tried that in sysctl I put net.ipv4.icmp_echo_ignore_all = 0,
Still when I ping from my windows machine I see 'request timed out'

kostya · 11-17-2011, 06:31 AM

Assuming your IP on the RHEL machine is set with correct netmask?

kostya · 11-17-2011, 06:34 AM

Oh, and try, for the purity sake,

Quote:

$sudo iptables -L -n

Just who knows, perhaps stopping iptables service somehow doesnt' disable iptables rules?

Bhakti1982 · 11-28-2011, 11:19 PM

Thanks everyone for your inputs, The issue was solved.
we had set the ip details in ifcfg-lo and ifcfg-eth0, both the files, which caused the server to loop back.and ping all ips, but other machines were not able to ping the server.
We restored ifcfg-lo to original file and restarted the network.
We have the server in LAN now.