README
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Bridge
Bridge is a TCP proxy tool Support http(s)-connect socks4/4a/5/5h ssh proxycommand
Supported protocols
Example
Mapping example.org:80 TCP port to 8080 port of the local machines.
bridge -b :8080 -p example.org:80
# `curl -H 'Host: example.org' 127.0.0.1:8080` will return to the target page
Proxy that can go through various protocols.
bridge -b :8080 -p example.org:80 -p ssh://username:password@my_server:22
bridge -b :8080 -p example.org:80 -p ssh://username@my_server:22?identity_file=~/.ssh/id_rsa
bridge -b :8080 -p example.org:80 -p socks5://username:password@my_server:1080
bridge -b :8080 -p example.org:80 -p http://username:password@my_server:8080
bridge -b :8080 -p example.org:80 -p 'cmd:nc %h %p'
bridge -b :8080 -p example.org:80 -p 'cmd:ssh sshserver nc %h %p'
It can also go through multi-level proxy.
bridge -b :8080 -p example.org:80 -p http://username:password@my_server2:8080 -p http://username:password@my_server1:8080
Using proxy protocol(http/socks4/socks5) instead of direct TCP forwarding.
bridge -b :8080 -p -
bridge -b :8080 -p - -p http://username:password@my_server1:8080
# `http_proxy=http://127.0.0.1:8080 curl example.org` Will be the proxy
You can also use ssh to listen for port mapping from local port to server port,
due to the limitation of sshd, only 127.0.0.1 ports can be monitored.
if you want to provide external services,
you need to change the 'GatewayPorts no' in /etc/ssh/sshd_config to yes
and then reload sshd.
bridge -b :8080 -b ssh://username:password@my_server:22 -p 127.0.0.1:80
More of the time I'm acting as a ssh proxy.
# in ~/.ssh/config
ProxyCommand bridge -p %h:%p -p "ssh://username@my_server?identity_file=~/.ssh/id_rsa"
Usage
Usage: bridge [-d] \
[-b=[[tcp://]bind_address]:bind_port \
[-b=ssh://bridge_bind_address:bridge_bind_port [-b=(socks4://|socks4a://|socks5://|socks5h://|https://|http://|ssh://|cmd:)bridge_bind_address:bridge_bind_port ...]]] \ //
-p=([tcp://]proxy_address:proxy_port|-) \
[-p=(socks4://|socks4a://|socks5://|socks5h://|https://|http://|ssh://|cmd:)bridge_proxy_address:bridge_proxy_port ...]
-b, --bind strings The first is the listening address, and then the proxy through which the listening address passes.
If it is not filled in, it is redirected to the pipeline.
only SSH and local support listening, so the last proxy must be ssh.
-d, --debug Output the communication data.
-p, --proxy strings The first is the dial-up address, followed by the proxy through which the dial-up address passes.
Installation
go install github.com/wzshiming/bridge/cmd/bridge@latest
or
or
License
Licensed under the MIT License. See LICENSE for the full license text.
Documentation
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Index ¶
Constants ¶
This section is empty.
Variables ¶
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Functions ¶
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Types ¶
type BridgeFunc ¶
BridgeFunc type is an adapter for Bridger.
type Bridger ¶
type Bridger interface {
Bridge(ctx context.Context, dialer Dialer, address string) (Dialer, error)
}
Bridger contains options for crossing a bridge address.
type CommandDialFunc ¶ added in v0.2.0
CommandDialFunc type is an adapter for Dialer with command.
func (CommandDialFunc) CommandDialContext ¶ added in v0.2.0
func (d CommandDialFunc) CommandDialContext(ctx context.Context, name string, args ...string) (net.Conn, error)
CommandDialContext calls d(ctx, name, args...)
type CommandDialer ¶ added in v0.2.0
type CommandDialer interface {
CommandDialContext(ctx context.Context, name string, args ...string) (net.Conn, error)
}
CommandDialer contains options for connecting to an address with command.
type CommandListenConfig ¶ added in v0.6.8
type CommandListenConfig interface {
CommandListen(ctx context.Context, name string, args ...string) (net.Listener, error)
}
CommandListenConfig contains options for listening to an address with command.
type CommandListenConfigFunc ¶ added in v0.6.8
type CommandListenConfigFunc func(ctx context.Context, name string, args ...string) (net.Listener, error)
CommandListenConfigFunc type is an adapter for ListenConfig with command.
func (CommandListenConfigFunc) CommandListen ¶ added in v0.6.8
func (l CommandListenConfigFunc) CommandListen(ctx context.Context, name string, args ...string) (net.Listener, error)
CommandListen calls b(ctx, network, address)
type Dialer ¶
type Dialer interface {
DialContext(ctx context.Context, network, address string) (net.Conn, error)
}
Dialer contains options for connecting to an address.
type ListenConfig ¶
type ListenConfig interface {
Listen(ctx context.Context, network, address string) (net.Listener, error)
}
ListenConfig contains options for listening to an address.
type ListenConfigFunc ¶
ListenConfigFunc type is an adapter for ListenConfig.
Source Files
Directories