proxychains是一款相当好用的命令行命令proxy设置工具。一般来说使用ssh登录、curl、wget等一系列命令，有的时候都很需要进行proxy设置，理由么大家都懂的。这时候有像proxychains这样的工具就会非常方便。
官网：
在MAC下安装仍旧非常简单：
$ brew update --verbose
$ brew install proxychains-ng --verbose然后创建配置文件：
$ mkdir ~/.proxychains
$ vim ~/.proxychains/proxychains.conf内容如下，其实也就没几条有用的：
# proxychains.conf VER 4.x
#
# HTTP, SOCKS4a, SOCKS5 tunneling proxifier with DNS.
# The option below identifies how the ProxyList is treated.
# only one option should be uncommented at time,
# otherwise the last appearing option will be accepted
#
dynamic_chain
#
# Dynamic - Each connection will be done via chained proxies
# all proxies chained in the order as they appear in the list
# at least one proxy must be online to play in chain
# (dead proxies are skipped)
# otherwise EINTR is returned to the app
#
#strict_chain
#
# Strict - Each connection will be done via chained proxies
# all proxies chained in the order as they appear in the list
# all proxies must be online to play in chain
# otherwise EINTR is returned to the app
#
#round_robin_chain
#
# Round Robin - Each connection will be done via chained proxies
# of chain_len length
# all proxies chained in the order as they appear in the list
# at least one proxy must be online to play in chain
# (dead proxies are skipped).
# the start of the current proxy chain is the proxy after the last
# proxy in the previously invoked proxy chain.
# if the end of the proxy chain is reached while looking for proxies
# start at the beginning again.
# otherwise EINTR is returned to the app
# These semantics are not guaranteed in a multithreaded environment.
#
#random_chain
#
# Random - Each connection will be done via random proxy
# (or proxy chain, see chain_len) from the list.
# this option is good to test your IDS :)
# Make sense only if random_chain or round_robin_chain
#chain_len = 2
# Quiet mode (no output from library)
#quiet_mode
# Proxy DNS requests - no leak for DNS data
#proxy_dns
# set the class A subnet number to use for the internal remote DNS mapping
# we use the reserved 224.x.x.x range by default,
# if the proxified app does a DNS request, we will return an IP from that range.
# on further accesses to this ip we will send the saved DNS name to the proxy.
# in case some control-freak app checks the returned ip, and denies to
# connect, you can use another subnet, e.g. 10.x.x.x or 127.x.x.x.
# of course you should make sure that the proxified app does not need
# *real* access to this subnet.
# i.e. dont use the same subnet then in the localnet section
#remote_dns_subnet 127
#remote_dns_subnet 10
#remote_dns_subnet 224
# Some timeouts in milliseconds
tcp_read_time_out 15000
tcp_connect_time_out 8000
### Examples for localnet exclusion
## localnet ranges will *not* use a proxy to connect.
## Exclude connections to 192.168.1.0/24 with port 80
# localnet 192.168.1.0:80/255.255.255.0
## Exclude connections to 192.168.100.0/24
# localnet 192.168.100.0/255.255.255.0
## Exclude connections to ANYwhere with port 80
# localnet 0.0.0.0:80/0.0.0.0
## RFC5735 Loopback address range
## if you enable this, you have to make sure remote_dns_subnet is not 127
## you'll need to enable it if you want to use an application that
## connects to localhost.
# localnet 127.0.0.0/255.0.0.0
## RFC1918 Private Address Ranges
# localnet 10.0.0.0/255.0.0.0
# localnet 172.16.0.0/255.240.0.0
# localnet 192.168.0.0/255.255.0.0
# ProxyList format
# type ip port [user pass]
# (values separated by'tab'or'blank')
#
# only numeric ipv4 addresses are valid
#
#
# Examples:
#
# socks5 192.168.67.78 1080 lamer secret
# http 192.168.89.3 8080 justu hidden
# socks4 192.168.1.49 1080
# http 192.168.39.93 8080
#
#
# proxy types: http, socks4, socks5
# ( auth types supported:"basic"-http"user/pass"-socks )
#
[ProxyList]
# add proxy here ...
# meanwile
# defaults set to"tor"
socks5 127.0.0.1 6153
http 127.0.0.1 6152这里需要注意，安装完之后的命令名为：proxychains4，而不是proxychains。
MAC下如果使用proxychains来进行操作的话，会发现一些命令其实并没有生效。这里就会遇到一个SIP的问题，具体可以看：
上面的处理方法是完全关闭SIP，这其实是不太可取的，这里还有另一个解决思路，见：
最后使用的命令会如下：
$ cp /usr/bin/ssh ~/Prog/Cmd
$
$ proxychains4 ~/Prog/Cmd/ssh -v -p 22 user@ipEOF