01-12-2009
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
# netstat -in
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll
net1 1500 192.168 192.168.0.11 24508 0 12212 112931 2795
lo0 8232 127 127.0.0.1 42 0 42 0 0
atl0* 8232 none none No Statistics... (1 Reply)
Discussion started by: samprax
1 Replies
2. Shell Programming and Scripting
i'd like to grep a range of ports on a netstat -nt output, localaddress, say :1 to :1023. how do i do it via sed/awk/grep?
Thanks,
Marc (1 Reply)
Discussion started by: marcpascual
1 Replies
3. HP-UX
Hi,
Does anyone know why I get a different output when using "netstat -a" or "netstat -an" ??
# netstat -a | grep ts15r135
tcp 0 0 nbsol152.62736 ts15r135.23211 ESTABLISHED
# netstat -an | grep 172.23.160.78
tcp 0 0 135.246.39.152.51954 ... (4 Replies)
Discussion started by: ejdv
4 Replies
4. UNIX for Dummies Questions & Answers
hi all,
when I run-
wcars1j5#netstat -an | grep 8090
127.0.0.1.8090 *.* 0 0 49152 0 LISTEN
wcars1j5#
1. does this mean that no one is connected to this port?
Regards,
akash (1 Reply)
Discussion started by: akash_mahakode
1 Replies
5. IP Networking
I can't tell what the output of the netstat command means. Is there anywhere that has this information? I tried the man pages, but they weren't helpful. (3 Replies)
Discussion started by: Ultrix
3 Replies
6. IP Networking
I have a TCPIP server application (a Vendor package) which by default allows 10 connections. It provides a parameter to allow us to increase the maximum allowable connections in case it is needed. Intermittently this application is failing with maximum number of connections reached even when there... (1 Reply)
Discussion started by: AIX_user
1 Replies
7. UNIX for Advanced & Expert Users
Hi,
I'm trying to figure out how much traffic has been generated and received from netstat -s output (using Linux). I can see the output shows packet counts and Octet values, how would I correctly calculate how much traffic in and how much out?
My output below:
Ip:
88847576 total... (1 Reply)
Discussion started by: wilsonee
1 Replies
8. UNIX for Dummies Questions & Answers
Hi,
I have old SCO O/S. System keeps crashing. I made lot of changes to kernel but so for nothing helped. I wrote a script which takes netstat -an output every one minute. I saw some thing right before the system crashed. Not sure if this means anything..
uname -a
SCO_SV djx2 3.2... (2 Replies)
Discussion started by: samnyc
2 Replies
9. Shell Programming and Scripting
Hi Team,
Below is the output of netstat -an | grep 1533
tcp 0 0 17.18.18.12:583 10.3.2.0:1533 ESTABLISHED
tcp 0 0 17.18.18.12:370 10.3.2.0:1533 ESTABLISHED
Below is the o/p of netstat -a | grep server_name
tcp 0 ... (4 Replies)
Discussion started by: Girish19
4 Replies
10. UNIX for Beginners Questions & Answers
Hi All,
I am trying to collect the listen ports info from netstat command in centos 7
From that info i am trying to collect all the foreign address IP for those ports.
I am using below script to do the same.
netstat -an |grep -w "LISTEN" |grep -v "127.0.0.1" |awk '{print $4}' >... (3 Replies)
Discussion started by: sravani25
3 Replies
LEARN ABOUT LINUX
tc-pfifo
PBFIFO(8) Linux PBFIFO(8)
NAME
pfifo - Packet limited First In, First Out queue
bfifo - Byte limited First In, First Out queue
SYNOPSIS
tc qdisc ... add pfifo [ limit packets ]
tc qdisc ... add bfifo [ limit bytes ]
DESCRIPTION
The pfifo and bfifo qdiscs are unadorned First In, First Out queues. They are the simplest queues possible and therefore have no overhead.
pfifo constrains the queue size as measured in packets. bfifo does so as measured in bytes.
Like all non-default qdiscs, they maintain statistics. This might be a reason to prefer pfifo or bfifo over the default.
ALGORITHM
A list of packets is maintained, when a packet is enqueued it gets inserted at the tail of a list. When a packet needs to be sent out to
the network, it is taken from the head of the list.
If the list is too long, no further packets are allowed on. This is called 'tail drop'.
PARAMETERS
limit Maximum queue size. Specified in bytes for bfifo, in packets for pfifo. For pfifo, defaults to the interface txqueuelen, as speci-
fied with ifconfig(8) or ip(8).
For bfifo, it defaults to the txqueuelen multiplied by the interface MTU.
OUTPUT
The output of tc -s qdisc ls contains the limit, either in packets or in bytes, and the number of bytes and packets actually sent. An
unsent and dropped packet only appears between braces and is not counted as 'Sent'.
In this example, the queue length is 100 packets, 45894 bytes were sent over 681 packets. No packets were dropped, and as the pfifo queue
does not slow down packets, there were also no overlimits:
# tc -s qdisc ls dev eth0
qdisc pfifo 8001: dev eth0 limit 100p
Sent 45894 bytes 681 pkts (dropped 0, overlimits 0)
If a backlog occurs, this is displayed as well.
SEE ALSO
tc(8)
AUTHORS
Alexey N. Kuznetsov, <kuznet@ms2.inr.ac.ru>
This manpage maintained by bert hubert <ahu@ds9a.nl>
iproute2 10 January 2002 PBFIFO(8)