LinuxQuestions.org - ping: sendmsg: operation not permitted

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- - ping: sendmsg: operation not permitted (https://www.linuxquestions.org/questions/linux-networking-3/ping-sendmsg-operation-not-permitted-307848/)

named:

"service named status" or "service named start"

Avatar,
The 'named' service was down and I restarted it. But, there is no improvement. I have tried the iptables -L INPUT and Output commands. The following are the results.

------
#iptables -L INPUT
Chain INPUT (policy DROP)
target prot opt source destination
ACCEPT all -- anywhere anywhere
DROP !icmp -- anywhere anywhere state INVALID
common all -- anywhere anywhere
LOG all -- anywhere anywhere LOG level info prefix 'Shorewall:INPUT:REJECT:'
reject all -- anywhere anywhere

#iptables -L OUTPUT
Chain INPUT (policy DROP)
target prot opt source destination
ACCEPT all -- anywhere anywhere
DROP !icmp -- anywhere anywhere state INVALID
common all -- anywhere anywhere
LOG all -- anywhere anywhere LOG level info prefix 'Shorewall:INPUT:REJECT:'
reject all -- anywhere anywhere

------

Thanks,
Sriram.

Avatar,

Thanks for all your helps...!!! The firewall Shorewell was enabled and I stopped it and immediately I could ping both ways.

Thank you very much and I appreciate.

Thanks.
Sriram.

Avatar,

I am going to physically connect the second LAN card now on the machine. What are the issues I have to take care? I want both of the LAN cards work in tandem and the second one should be our Internet Gateway. Please throw some light.

TIA,
Sriram.

Glad you got your problem solved! I can't believe I didn't think of that as I also had to disable shorewall on my server.

For your 2 network cards I have the same setup, with eth1 connected to the LAN and eth0 connected to the ADSL modem (Internet.)

Eth1 static IP address is be on the same subnet, and your clients' gateway should be the IP address on the LAN side.

Eth0 is connected via ppp0 and has a dynamic, public IP address assigned by the ISP. (so don't give it a static IP address).

Internet -- eth0 (ppp0) -- server -- eth1 -- LAN

Here's my ifconfig, in case it helps.

Code:

[root@localhost etc]# ifconfig

eth0      Link encap:Ethernet  HWaddr 00:09:6B:63:15:4E

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:9892005 errors:28924 dropped:0 overruns:0 frame:0

          TX packets:9277365 errors:0 dropped:0 overruns:0 carrier:0

          collisions:28924 txqueuelen:100

          RX bytes:221140017 (210.8 Mb)  TX bytes:1556996141 (1484.8 Mb)

          Interrupt:24 Memory:fbff0000-fc000000



eth1      Link encap:Ethernet  HWaddr 00:09:6B:63:15:4F

          inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:9001890 errors:0 dropped:0 overruns:0 frame:0

          TX packets:10775050 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:100

          RX bytes:1644557709 (1568.3 Mb)  TX bytes:1519710749 (1449.3 Mb)

          Interrupt:25 Memory:fbfe0000-fbff0000



lo        Link encap:Local Loopback

          inet addr:127.0.0.1  Mask:255.0.0.0

          UP LOOPBACK RUNNING  MTU:16436  Metric:1

          RX packets:4497506 errors:0 dropped:0 overruns:0 frame:0

          TX packets:4497506 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:446697552 (426.0 Mb)  TX bytes:446697552 (426.0 Mb)



ppp0      Link encap:Point-to-Point Protocol

          inet addr:64.231.100.148  P-t-P:64.230.254.76  Mask:255.255.255.255

          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1

          RX packets:567950 errors:0 dropped:0 overruns:0 frame:0

          TX packets:548420 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:3

          RX bytes:497050156 (474.0 Mb)  TX bytes:81051346 (77.2 Mb)

Hi Avatar,

Thanks for your reply. In my ifconfig, pppo is not listed. How can i get it listed?

TIA,
Sriram.

Hi, I've a similar problem to br_sriram
When I ping any ip address, I receive the same message
operation not permitted

I've Fedora 4, and it was working until I update the kernel to 2.6-1.16
I update the kernel via a rpm downloaded from de fedora web page.

I try to disable iptables, but this don't work for me ..

any help ??

I have the same problem me too, except it's only for one of two nic's. I have currently flushed and rebuilt my routing tables, and iptables is empty with default INPUT, OUTPUT, FORWARD set to ACCEPT.
I can ping with my first nic, and get reasonable responses, but with my second nic i get
ping: sendmsg: Operation not permitted.
and that goes not only for ping, it seems to be something blocking the damn thing, and i can't figure out what :(

The title of the thread is such and the content good so it comes on google easy.

I just thought it was worth adding to all this that quite often on a LAN the ping error
is due to the firewall not letting anything out, and as shorewall is used by many,
worth saying "have a look in /etc/shorewall/policy or rules and be sure to have"
ACCEPT fw net all
(that is accept all outgoing traffic from the fw to the net.
It is better than stopping shorewall all together. To restart, as root
service shorewall restart (once rules or policy are edited)
But you might want to be more granulous than that...

ping not allowed

hi
I have belkin g router and there's in settings is yes/not allow wan pinging...that's why i'we get that message too.Everything else work's.
Check this setting.

good luck!