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Questions tagged [netstat]

netstat is a tool for viewing active network connections, listeners and sockets.

netstat is a tool for viewing active network connections, listeners and sockets.

322 questions
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weird netstat output on netscaler

We have a VPX-1000 netscaler. When traffic suddenly increases our website goes offline and doesn't response to requests but our netscaler load is fine (cpu %40 ram %50 4 cores 4gb). After incident occurs every time when traffic increases I've…
ender ulusoy
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"0/2" IPv4 destination in "netstat -nr" command on Mac OS X to view host routing table

I'm using the command "netstat -nr" to view the host routing table on a Mac OS X system, and here's the output I'm getting: Routing tables Internet: Destination Gateway Flags Refs Use Netif Expire 0/2 …
slantalpha
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Track down application/process causing computer broacasting destination 255.255.255.255 port 0

We have installed Untangle and we see many broadcasts from 1 IP (client Windows 7). Almost every minute it is broadcasting to 255.255.255.255 port 0. I would like to know how to trace the source of causing this behaviour. I have tried with netstat…
B.M.
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I cannot ping to destination IP even after adding a ip tunnel

So I have a virtual device with ip 192.168.16.15/24(device X). I'm trying to ping this from another device 10.64.95.120/24(device A). This virtual device(device X) is created on another server 10.64.95.93/24(device B). 1) I'm able to ping from…
mac
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openVPN and myhttpd on port 433

I'm trying to set up OpenVPN to listen on port 443 on my Asustor NAS, and then pass all HTTPS traffic to Apache, by using the port-share option based on: OpenVPN port-share with Apache/SSL However i'm not getting it to work. I think the problem is…
Mni82
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UDP connections with no foreign address

Ubuntu 14.04 $ netstat -anu | less Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State udp 0 0 0.0.0.0:39262 0.0.0.0:* …
Paul Draper
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Check Used Ports on Linux without Command

Is there a way to check Used Ports on Linux without commands, I mean checking files or so on ?
user212051
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Digital Ocean - Outgoing DOS attack

noob here. My droplet has experienced an outgoing DOS attack, as informed by Digital Ocean and networking has been disabled. This has happened twice in the last two days. Previous droplet also was compromised in the similar manner and networking was…
srijanshukla
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What application is connecting to a remote site?

I can see with Wireshark that every 5 minutes I have a connection from my computer to ip 165.254.162.243 on udp/8253. This has been going for months. I cannot identify what application or process is making this connection. I used Wireshark to…
AdiGri
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No webserver running, but replying to packets on ports 80 and 443

I see from iptables that my Centos 7 machine is receiving and sending out packets on ports 80 and 443. I don't have a webserver running, and netstat returned nothing for those ports. Is this normal?
Gavin Serra
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Why alot of netstat poiting to external url

Our server was almost like being DDOS. When doing netstat -a , I saw something that I cannot understand (maybe due to my very limited knowledge) root@NC-PH-0456-19:~# netstat -a Active Internet connections (servers and established) …
Phung D. An
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How can I force a refresh of what ports have listeners

I'm trying to re-launch a WCF service that I killed earlier, but I'm getting an AddressAlreadyInUseException. The port it's attempting to use is 1819. I ran netstat -nao from the command line, and have found there is a listening process on port…
reustmd
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Linux 'ss' command - TCP connections

I am getting below output/summary while running few gatling & AB perf test as a result of command - $ ss -stplu Output - Total: 517 (kernel 0) TCP: 11261 (estab 3, closed 11254, orphaned 1, synrecv 0, timewait 11235/0), ports 0 Transport…
vivekyad4v
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Route Add not taking effect Windows Server 2012

I'm trying to route traffic to a specific subnet through a specific device. I've added the route successfully, yet any time I run a trace route to an IP on that subnet, it is not routing through the gateway I specified. I am trying to route all…
Zer0Cool
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Irresponsive nginx while doing “nginx reload”

While reloading nginx, I started getting errors in messages log "possible SYN flooding on port 443", and it seems like nginx becomes completely irresponsive at that time (quite for a while), cause zabbix reports "nginx is down" with ping 0s. RPS at…
d.ansimov
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