Embedded Files
Show interface
# netstat -ei
Kernel Interface table
bond0 Link encap:Ethernet HWaddr 00:21:5A:F4:D2:A0
inet addr:192.168.62.120 Bcast:192.168.62.255 Mask:255.255.255.0
UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
RX packets:104833387430 errors:0 dropped:10057 overruns:0 frame:0
TX packets:47058991939 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:24718851194762 (22.4 TiB) TX bytes:11242273168528 (10.2 TiB)
eth0 Link encap:Ethernet HWaddr 00:21:5A:F4:D2:A0
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:12137112442 errors:0 dropped:1361 overruns:0 frame:0
TX packets:5649050420 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2558770819366 (2.3 TiB) TX bytes:1371019425823 (1.2 TiB)
Interrupt:185 Memory:f6000000-f6012100
# netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
192.168.84.0 192.168.222.1 255.255.255.0 UG 0 0 0 eth5
10.8.62.0 0.0.0.0 255.255.255.0 U 0 0 0 bond0
192.168.222.0 0.0.0.0 255.255.255.0 U 0 0 0 eth5
192.168.80.0 192.168.222.1 255.255.252.0 UG 0 0 0 eth5
0.0.0.0 10.8.62.1 0.0.0.0 UG 0 0 0 bond0
Raw Network stats
# netstat --statistics --raw
Ip:
1740181076 total packets received
242 with invalid addresses
0 forwarded
60 with unknown protocol
0 incoming packets discarded
1740180696 incoming packets delivered
4171292189 requests sent out
2 outgoing packets dropped
5 fragments received ok
2 fragments failed
10 fragments created
Icmp:
188045 ICMP messages received
721 input ICMP message failed.
ICMP input histogram:
destination unreachable: 68518
timeout in transit: 470
source quenches: 10334
echo requests: 536
echo replies: 108106
timestamp request: 21
address mask request: 60
78611 ICMP messages sent
0 ICMP messages failed
ICMP output histogram:
destination unreachable: 78054
echo replies: 536
timestamp replies: 21
TCP Stats
# netstat -st
Tcp:
45749178 active connections openings
249960 passive connection openings
5499 failed connection attempts
247556 connection resets received
12 connections established
1404748681 segments received
3871419769 segments send out
1321751 segments retransmited
3160 bad segments received.
1035401 resets sent
TcpExt:
3243 resets received for embryonic SYN_RECV sockets
16387873 packets pruned from receive queue because of socket buffer overrun
242 ICMP packets dropped because they were out-of-window
35985192 TCP sockets finished time wait in fast timer
1795 time wait sockets recycled by time stamp
2144 packets rejects in established connections because of timestamp
175579265 delayed acks sent
86517 delayed acks further delayed because of locked socket
Quick ack mode was activated 1916248 times
3519347504 packets directly queued to recvmsg prequeue.
4029807573 packets directly received from backlog
2759163788 packets directly received from prequeue
3389092448 packets header predicted
1719216948 packets header predicted and directly queued to user
617393506 acknowledgments not containing data received
1557569762 predicted acknowledgments
26 times recovered from packet loss due to fast retransmit
3919 times recovered from packet loss due to SACK data
Detected reordering 11 times using FACK
Detected reordering 7 times using SACK
Detected reordering 1 times using reno fast retransmit
Detected reordering 24 times using time stamp
80 congestion windows fully recovered
90 congestion windows partially recovered using Hoe heuristic
TCPDSACKUndo: 1687
309368 congestion windows recovered after partial ack
3537 TCP data loss events
TCPLostRetransmit: 4
87 timeouts after reno fast retransmit
25728 timeouts after SACK recovery
87 timeouts in loss state
4099 fast retransmits
183 forward retransmits
1329 retransmits in slow start
652270 other TCP timeouts
229 sack retransmits failed
321 times receiver scheduled too late for direct processing
693393128 packets collapsed in receive queue due to low socket buffer
1192293 DSACKs sent for old packets
27857 DSACKs sent for out of order packets
1919672 DSACKs received
66 DSACKs for out of order packets received
40 connections reset due to unexpected SYN
201453 connections reset due to unexpected data
51538 connections reset due to early user close
140026 connections aborted due to timeout
UDP Stats
# netstat -su
Udp:
298340145 packets received
77724 packets to unknown port received.
1 packet receive errors
299681248 packets sent
Show TCP Servers
# netstat -tnl
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 127.0.1.1:53 0.0.0.0:* LISTEN
Show TCP connections ESTABLISHED
# netstat -tn
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 192.168.18.52:43140 172.217.1.110:443 ESTABLISHED
tcp 0 0 192.168.18.52:43138 172.217.1.110:443 ESTABLISHED
tcp 0 0 192.168.18.52:40276 172.217.3.142:443 ESTABLISHED
Add p for process
# netstat -tnp
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 192.168.18.52:59866 23.197.205.228:443 ESTABLISHED 3796/chrome
tcp 0 0 192.168.18.52:40424 172.217.3.142:443 ESTABLISHED 3796/chrome
Page updated
Google Sites
Report abuse