Command line agent: proxychains configuration

Set up proxychains

Set up ProxyChains

sudo apt-get install proxychains
sudo gedit /etc/proxychains.conf

 Modify the port ：

# defaults set to "tor"
socks5 	127.0.0.1 1088

1088 Is the ladder port number , from agent Obtained in software

And then run

sudo proxychains wget  google.com

result ：

ProxyChains-3.1 (http://proxychains.sf.net)
--2022-01-11 16:42:17--  http://google.com/
Resolving google.com (google.com)... |DNS-request| google.com 
|S-chain|-<>-127.0.0.1:1080-<><>-4.2.2.2:53-<><>-OK
|DNS-response| google.com is 142.250.193.46
142.250.193.46
Connecting to google.com (google.com)|142.250.193.46|:80... |S-chain|-<>-127.0.0.1:1080-<><>-142.250.193.46:80-<><>-OK
connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: http://www.google.com/ [following]
--2022-01-11 16:42:18--  http://www.google.com/
Resolving www.google.com (www.google.com)... |DNS-request| www.google.com 
|S-chain|-<>-127.0.0.1:1080-<><>-4.2.2.2:53-<><>-OK
|DNS-response| www.google.com is 142.250.193.68
142.250.193.68
Connecting to www.google.com (www.google.com)|142.250.193.68|:80... |S-chain|-<>-127.0.0.1:1080-<><>-142.250.193.68:80-<><>-OK
connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Saving to: ‘index.html’

index.html                   [ <=>                               ]  14.69K  --.-KB/s    in 0.07s   

2022-01-11 16:42:20 (201 KB/s) - ‘index.html’ saved [15045]

The successful running

Difficult miscellaneous diseases

There is an error

ERROR: ld.so: object 'libproxychains.so.3' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.

$ proxychains ping google.com
ProxyChains-3.1 (http://proxychains.sf.net)
ERROR: ld.so: object 'libproxychains.so.3' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
PING google.com (142.251.43.14) 56(84) bytes of data.

problem :
libproxychains.so.3 Can't find
solve ：
First look for libproxychains.so.3 Where is the
Know the location ：libproxychains.so: /usr/lib/x86_64-linux-gnu/libproxychains.so.3

whereis libproxychains.so.3  
libproxychains.so: /usr/lib/x86_64-linux-gnu/libproxychains.so.3

modify ：/usr/bin/proxychains

code /usr/bin/proxychains

#!/bin/sh
echo "ProxyChains-3.1 (http://proxychains.sf.net)"
if [ $# = 0 ] ; then
	echo " usage:"
	echo " proxychains <prog> [args]"
	exit
fi
#export LD_PRELOAD=libproxychains.so.3
export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libproxychains.so.3
exec "[email protected]"

Verify changes ：

sudo cat /usr/bin/proxychains
#!/bin/sh
echo "ProxyChains-3.1 (http://proxychains.sf.net)"
if [ $# = 0 ] ; then
	echo " usage:"
	echo " proxychains <prog> [args]"
	exit
fi
#export LD_PRELOAD=libproxychains.so.3
export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libproxychains.so.3
exec "[email protected]"

Verify that the configuration is successful

$ sudo proxychains wget  google.com

....
Saving to: ‘index.html’

index.html                   [ <=>                               ]  14.73K  --.-KB/s    in 0.05s   

2022-01-11 16:22:20 (281 KB/s) - ‘index.html’ saved [15082]

ProxyChains What is it? ：
ProxyChains yes Linux And others Unices Under the agent Tools . It can make any program pass agent surf the internet , allow TCP and DNS adopt agent Tunnel , Support HTTP、SOCKS4 and SOCKS5 Type of agent The server , And multiple can be configured agent.ProxyChains Through a user-defined agent The list forces the connection to the specified application , Disconnect the receiver and sender directly .