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Old 11-27-2017, 09:39 PM   #1
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Some questions regarding netstat -s output

Im new to networking but I have a production dedicated CentOS server with many Wordpress sites on and Im trying to understand the output of netstat -s below.

What I want to know is why are there so many things like 'invalid addresses' and 'packets dropped'? Right now my guess would be that some of this could be bots trying to find vulnerabilities?

1235806416 total packets received
24554 with invalid addresses
0 forwarded
0 incoming packets discarded
1186688093 incoming packets delivered
919658229 requests sent out
1344323 outgoing packets dropped
24 dropped because of missing route
1 fragments dropped after timeout
1 reassemblies required
1 packet reassembles failed
16 fragments received ok
32 fragments created
330011 ICMP messages received
23203 input ICMP message failed.
ICMP input histogram:
destination unreachable: 169765
timeout in transit: 6380
redirects: 176
echo requests: 152616
echo replies: 918
491618 ICMP messages sent
0 ICMP messages failed
ICMP output histogram:
destination unreachable: 338992
time exceeded: 1
echo request: 9
echo replies: 152616
Old 11-30-2017, 03:31 PM   #2
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You need check your routing table. Is there a default route in server?


centos, netstat

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