As mentioned by others, having some connections in TIME_WAIT is a normal part of the socket close process. If you have a large number of TIME_WAIT connections you might want to decrease the wait interval.
You can see the current number of seconds by examining /proc/sys/net/ipv4/tcp_fin_timeout:
And modify the value:
Hi
what is the command to see the process name/application name
along with the port number, connection status ...
netstat is not giving process/application name
Is there any way to know which application is holding which port?
Thanks in advance (3 Replies)
Hi..,
Now, I am reading about the netstat command and its implementation. I have doubts in some options and its functionalities,
natstat - M (Which is described as display masqueraded connections), what it means?
What is Forwarding Information Base.?(--fib)
Thanks in advance,... (3 Replies)
For FreeBSD I use this command to determine what ports are listenning
netstat -an | grep LISTEN
is there another way, perhaps another command? (2 Replies)
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)
Greetings to all,
Here is a line of output from my netstat command
cbp031.904 wdcprodhome.nfsd 98304 0 49640 0 ESTABLISHED
The only thing i recognize is the unix machine "cbp031" but what is .904 and all the other data telling me?
Thanks in advance. (3 Replies)
Hi,
In my project we use sftp with batch mode (password less) script in parallel for 14 sessions which connects to 2 different servers alternatively i.e. 7 connects to one server say server1 and the other 7 connects to say server 2.
Now the problem is that these 14 sessions are run in... (5 Replies)
Hi,
I want to list the time for how long a secure connections last to my server/blade. i am using netstat command to get the same, but not sure how to get the time for how long connections is being ESTABLISHED.
netstat -na | grep 'ESTABLISHED' | grep :443 |awk '{print $4}' | cut -d: -f1 |... (1 Reply)
Do I have this command correct to show all current connections/sessions my Solaris box has? It does not seem to do anything.
netstat -an | grep EST (6 Replies)
When running netstat -i from the Command Terminal,
It returns with 21 different connections..
The addresses all look like this:
::1
fe80:1::1
10:dd:b1:a5:c4:ba
with Network names like
Linke#2
fe80::8e2d
How can I delve deeper into this to clarify what is going on with my network?... (0 Replies)
Discussion started by: dwfiedler
0 Replies
LEARN ABOUT LINUX
network_namespaces
NETWORK_NAMESPACES(7) Linux Programmer's Manual NETWORK_NAMESPACES(7)NAME
network_namespaces - overview of Linux network namespaces
DESCRIPTION
Network namespaces provide isolation of the system resources associated with networking: network devices, IPv4 and IPv6 protocol stacks, IP
routing tables, firewall rules, the /proc/net directory (which is a symbolic link to /proc/PID/net), the /sys/class/net directory, various
files under /proc/sys/net, port numbers (sockets), and so on. In addition, network namespaces isolate the UNIX domain abstract socket
namespace (see unix(7)).
A physical network device can live in exactly one network namespace. When a network namespace is freed (i.e., when the last process in the
namespace terminates), its physical network devices are moved back to the initial network namespace (not to the parent of the process).
A virtual network (veth(4)) device pair provides a pipe-like abstraction that can be used to create tunnels between network namespaces, and
can be used to create a bridge to a physical network device in another namespace. When a namespace is freed, the veth(4) devices that it
contains are destroyed.
Use of network namespaces requires a kernel that is configured with the CONFIG_NET_NS option.
SEE ALSO nsenter(1), unshare(1), clone(2), veth(4), proc(5), sysfs(5), namespaces(7), user_namespaces(7), brctl(8), ip(8), ip-address(8), ip-
link(8), ip-netns(8), iptables(8), ovs-vsctl(8)Linux 2018-02-02 NETWORK_NAMESPACES(7)