Dear Experts,
I put below command-
could you please describe the outputs column-
let me describe some them-
col_1: (10.131.60.48.55880) The IP address of the local computer and the port number being used for this particular connection appear in the Local Address column.
col_2:... (3 Replies)
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)
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)
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)
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)
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)
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)
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 MOJAVE
curlopt_connect_to
CURLOPT_CONNECT_TO(3) curl_easy_setopt options CURLOPT_CONNECT_TO(3)NAME
CURLOPT_CONNECT_TO - Connect to a specific host and port instead of the URL's host and port
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CONNECT_TO,
struct curl_slist *connect_to);
DESCRIPTION
Pass a pointer to a linked list of strings with "connect to" information to use for establishing network connections with this handle. The
linked list should be a fully valid list of struct curl_slist structs properly filled in. Use curl_slist_append(3) to create the list and
curl_slist_free_all(3) to clean up an entire list.
Each single string should be written using the format HOST:PORT:CONNECT-TO-HOST:CONNECT-TO-PORT where HOST is the host of the request, PORT
is the port of the request, CONNECT-TO-HOST is the host name to connect to, and CONNECT-TO-PORT is the port to connect to.
The first string that matches the request's host and port is used.
Dotted numerical IP addresses are supported for HOST and CONNECT-TO-HOST. A numerical IPv6 address must be written within [brackets].
Any of the four values may be empty. When the HOST or PORT is empty, the host or port will always match (the request's host or port is
ignored). When CONNECT-TO-HOST or CONNECT-TO-PORT is empty, the "connect to" feature will be disabled for the host or port, and the
request's host or port will be used to establish the network connection.
This option is suitable to direct the request at a specific server, e.g. at a specific cluster node in a cluster of servers.
The "connect to" host and port are only used to establish the network connection. They do NOT affect the host and port that are used for
TLS/SSL (e.g. SNI, certificate verification) or for the application protocols.
In contrast to CURLOPT_RESOLVE(3), the option CURLOPT_CONNECT_TO(3) does not pre-populate the DNS cache and therefore it does not affect
future transfers of other easy handles that have been added to the same multi handle.
The "connect to" host and port are ignored if they are equal to the host and the port in the request URL, because connecting to the host
and the port in the request URL is the default behavior.
If an HTTP proxy is used for a request having a special "connect to" host or port, and the "connect to" host or port differs from the
requests's host and port, the HTTP proxy is automatically switched to tunnel mode for this specific request. This is necessary because it
is not possible to connect to a specific host or port in normal (non-tunnel) mode.
When this option is passed to curl_easy_setopt(3), libcurl will not copy the entire list so you must keep it around until you no longer use
this handle for a transfer before you call curl_slist_free_all(3) on the list.
DEFAULT
NULL
PROTOCOLS
All
EXAMPLE
CURL *curl;
struct curl_slist *connect_to = NULL;
connect_to = curl_slist_append(NULL, "example.com::server1.example.com:");
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_CONNECT_TO, connect_to);
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
curl_easy_perform(curl);
/* always cleanup */
curl_easy_cleanup(curl);
}
curl_slist_free_all(connect_to);
AVAILABILITY
Added in 7.49.0
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
SEE ALSO CURLOPT_URL(3), CURLOPT_RESOLVE(3), CURLOPT_FOLLOWLOCATION(3), CURLOPT_HTTPPROXYTUNNEL(3),
libcurl 7.54.0 May 20, 2016 CURLOPT_CONNECT_TO(3)