glider

command module
v0.12.0 Latest Latest
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 Go to latest Published: Oct 15, 2020 License: GPL-3.0 Imports: 36 Imported by: 0

README

glider

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glider is a forward proxy with multiple protocols support, and also a dns/dhcp server with ipset management features(like dnsmasq).

we can set up local listeners as proxy servers, and forward requests to internet via forwarders.

                |Forwarder ----------------->|
   Listener --> |                            | Internet
                |Forwarder --> Forwarder->...|

Features

  • Act as both proxy client and proxy server(protocol converter)
  • Flexible proxy & protocol chains
  • Load balancing with the following scheduling algorithm:
    • rr: round robin
    • ha: high availability
    • lha: latency based high availability
    • dh: destination hashing
  • Rule & priority based forwarder choosing: Config Examples
  • DNS forwarding server:
    • dns over proxy
    • force upstream querying by tcp
    • association rules between dns and forwarder choosing
    • association rules between dns and ipset
    • dns cache support
    • custom dns record
  • IPSet management (linux kernel version >= 2.6.32):
    • add ip/cidrs from rule files on startup
    • add resolved ips for domains from rule files by dns forwarding server
  • Serve http and socks5 on the same port
  • Periodical availability checking for forwarders
  • Send requests from specific local ip/interface
  • Services:
    • dhcpd: a simple dhcp server that can detect existing dhcp server and avoid conflicts

Protocols

click to see details
Protocol Listen/TCP Listen/UDP Forward/TCP Forward/UDP Description
mixed √ √ http+socks5 server
http √ √ client & server
socks5 √ √ √ √ client & server
ss √ √ √ √ client & server
trojan √ √ √ √ client & server
trojanc √ √ √ √ trojan cleartext(without tls)
vless √ √ √ √ client & server
vmess √ client only
ssr √ client only
ssh √ client only
socks4 √ client only
tls √ √ transport client & server
kcp √ √ transport client & server
unix √ √ transport client & server
websocket √ transport client only
simple-obfs √ transport client only
tcptun √ transport server only
udptun √ transport server only
redir √ linux only
redir6 √ linux only(ipv6)
reject √ √ reject all requests

Install

Download:

ArchLinux:

sudo pacman -S glider

Usage

glider -h
click to see details 
glider 0.12.0 usage:
  -checkdisabledonly
    	check disabled fowarders only
  -checkinterval int
    	fowarder check interval(seconds) (default 30)
  -checktimeout int
    	fowarder check timeout(seconds) (default 10)
  -checktolerance int
    	fowarder check tolerance(ms), switch only when new_latency < old_latency - tolerance, only used in lha mode
  -checkwebsite string
    	fowarder check HTTP(NOT HTTPS) website address, format: HOST[:PORT], default port: 80 (default "www.apple.com")
  -config string
    	config file path
  -dialtimeout int
    	dial timeout(seconds) (default 3)
  -dns string
    	local dns server listen address
  -dnsalwaystcp
    	always use tcp to query upstream dns servers no matter there is a forwarder or not
  -dnscachesize int
    	size of CACHE (default 4096)
  -dnsmaxttl int
    	maximum TTL value for entries in the CACHE(seconds) (default 1800)
  -dnsminttl int
    	minimum TTL value for entries in the CACHE(seconds)
  -dnsrecord value
    	custom dns record, format: domain/ip
  -dnsserver value
    	remote dns server address
  -dnstimeout int
    	timeout value used in multiple dnsservers switch(seconds) (default 3)
  -forward value
    	forward url, format: SCHEME://[USER|METHOD:PASSWORD@][HOST]:PORT?PARAMS[,SCHEME://[USER|METHOD:PASSWORD@][HOST]:PORT?PARAMS]
  -include value
    	include file
  -interface string
    	source ip or source interface
  -listen value
    	listen url, format: SCHEME://[USER|METHOD:PASSWORD@][HOST]:PORT?PARAMS
  -maxfailures int
    	max failures to change forwarder status to disabled (default 3)
  -relaytimeout int
    	relay timeout(seconds)
  -rulefile value
    	rule file path
  -rules-dir string
    	rule file folder
  -service value
    	run specified services, format: SERVICE_NAME[,SERVICE_CONFIG]
  -strategy string
    	forward strategy, default: rr (default "rr")
  -verbose
    	verbose mode

Available schemes:
  listen: mixed ss socks5 http vless trojan trojanc redir redir6 tcptun udptun tls unix kcp
  forward: reject ss socks4 socks5 http ssr ssh vless vmess trojan trojanc tls ws unix kcp simple-obfs

Socks5 scheme:
  socks://[user:pass@]host:port

SS scheme:
  ss://method:pass@host:port

Available methods for ss:
  AEAD Ciphers:
    AEAD_AES_128_GCM AEAD_AES_192_GCM AEAD_AES_256_GCM AEAD_CHACHA20_POLY1305 AEAD_XCHACHA20_POLY1305
  Stream Ciphers:
    AES-128-CFB AES-128-CTR AES-192-CFB AES-192-CTR AES-256-CFB AES-256-CTR CHACHA20-IETF XCHACHA20 CHACHA20 RC4-MD5
  Alias:
    chacha20-ietf-poly1305 = AEAD_CHACHA20_POLY1305, xchacha20-ietf-poly1305 = AEAD_XCHACHA20_POLY1305
  Plain: DUMMY

SSR scheme:
  ssr://method:pass@host:port?protocol=xxx&protocol_param=yyy&obfs=zzz&obfs_param=xyz

SSH scheme:
  ssh://user[:pass]@host:port[?key=keypath]

VMess scheme:
  vmess://[security:]uuid@host:port?alterID=num

VLESS scheme:
  vless://uuid@host:port[?fallback=127.0.0.1:80]

Trojan client scheme:
  trojan://pass@host:port[?serverName=SERVERNAME][&skipVerify=true]
  trojanc://pass@host:port     (cleartext, without TLS)

Trojan server scheme:
  trojan://pass@host:port?cert=PATH&key=PATH[&fallback=127.0.0.1]
  trojanc://pass@host:port[?fallback=127.0.0.1]     (cleartext, without TLS)

Available securities for vmess:
  none, aes-128-gcm, chacha20-poly1305

TLS client scheme:
  tls://host:port[?serverName=SERVERNAME][&skipVerify=true]

Proxy over tls client:
  tls://host:port[?skipVerify=true][&serverName=SERVERNAME],scheme://
  tls://host:port[?skipVerify=true],http://[user:pass@]
  tls://host:port[?skipVerify=true],socks5://[user:pass@]
  tls://host:port[?skipVerify=true],vmess://[security:]uuid@?alterID=num

TLS server scheme:
  tls://host:port?cert=PATH&key=PATH

Proxy over tls server:
  tls://host:port?cert=PATH&key=PATH,scheme://
  tls://host:port?cert=PATH&key=PATH,http://
  tls://host:port?cert=PATH&key=PATH,socks5://
  tls://host:port?cert=PATH&key=PATH,ss://method:pass@

Websocket scheme:
  ws://host:port[/path][?host=HOST]

Websocket with a specified proxy protocol:
  ws://host:port[/path][?host=HOST],scheme://
  ws://host:port[/path][?host=HOST],http://[user:pass@]
  ws://host:port[/path][?host=HOST],socks5://[user:pass@]
  ws://host:port[/path][?host=HOST],vmess://[security:]uuid@?alterID=num

TLS and Websocket with a specified proxy protocol:
  tls://host:port[?skipVerify=true][&serverName=SERVERNAME],ws://[@/path[?host=HOST]],scheme://
  tls://host:port[?skipVerify=true],ws://[@/path[?host=HOST]],http://[user:pass@]
  tls://host:port[?skipVerify=true],ws://[@/path[?host=HOST]],socks5://[user:pass@]
  tls://host:port[?skipVerify=true],ws://[@/path[?host=HOST]],vmess://[security:]uuid@?alterID=num

Unix domain socket scheme:
  unix://path

KCP scheme:
  kcp://CRYPT:KEY@host:port[?dataShards=NUM&parityShards=NUM]

Available crypt types for KCP:
  none, sm4, tea, xor, aes, aes-128, aes-192, blowfish, twofish, cast5, 3des, xtea, salsa20

Simple-Obfs scheme:
  simple-obfs://host:port[?type=TYPE&host=HOST&uri=URI&ua=UA]

Available types for simple-obfs:
  http, tls

DNS forwarding server:
  dns=:53
  dnsserver=8.8.8.8:53
  dnsserver=1.1.1.1:53
  dnsrecord=www.example.com/1.2.3.4
  dnsrecord=www.example.com/2606:2800:220:1:248:1893:25c8:1946

Available forward strategies:
  rr: Round Robin mode
  ha: High Availability mode
  lha: Latency based High Availability mode
  dh: Destination Hashing mode

Forwarder option scheme: FORWARD_URL#OPTIONS
  priority: set the priority of that forwarder, default:0
  interface: set local interface or ip address used to connect remote server
  -
  Examples:
    socks5://1.1.1.1:1080#priority=100
    vmess://[security:]uuid@host:port?alterID=num#priority=200
    vmess://[security:]uuid@host:port?alterID=num#priority=200&interface=192.168.1.99
    vmess://[security:]uuid@host:port?alterID=num#priority=200&interface=eth0

Config file format(see `./glider.conf.example` as an example):
  # COMMENT LINE
  KEY=VALUE
  KEY=VALUE
  # KEY equals to command line flag name: listen forward strategy...

Examples:
  ./glider -config glider.conf
    -run glider with specified config file.

  ./glider -listen :8443 -verbose
    -listen on :8443, serve as http/socks5 proxy on the same port, in verbose mode.

  ./glider -listen ss://AEAD_CHACHA20_POLY1305:pass@:8443 -verbose
    -listen on 0.0.0.0:8443 as a ss server.

  ./glider -listen socks5://user1:pass1@:1080 -verbose
    -listen on :1080 as a socks5 proxy server, enable authentication.

  ./glider -listen tls://:443?cert=crtFilePath&key=keyFilePath,http:// -verbose
    -listen on :443 as a https(http over tls) proxy server.

  ./glider -listen http://:8080 -forward socks5://127.0.0.1:1080
    -listen on :8080 as a http proxy server, forward all requests via socks5 server.

  ./glider -listen redir://:1081 -forward ss://method:pass@1.1.1.1:8443
    -listen on :1081 as a transparent redirect server, forward all requests via remote ss server.

  ./glider -listen redir://:1081 -forward "ssr://method:pass@1.1.1.1:8444?protocol=a&protocol_param=b&obfs=c&obfs_param=d"
    -listen on :1081 as a transparent redirect server, forward all requests via remote ssr server.

  ./glider -listen redir://:1081 -forward "tls://abc.com:443,vmess://security:uuid@?alterID=10"
    -listen on :1081 as a transparent redirect server, forward all requests via remote tls+vmess server.

  ./glider -listen redir://:1081 -forward "ws://1.1.1.1:80,vmess://security:uuid@?alterID=10"
    -listen on :1081 as a transparent redirect server, forward all requests via remote ws+vmess server.

  ./glider -listen tcptun://:80=2.2.2.2:80 -forward ss://method:pass@1.1.1.1:8443
    -listen on :80 and forward all requests to 2.2.2.2:80 via remote ss server.

  ./glider -listen udptun://:53=8.8.8.8:53 -forward ss://method:pass@1.1.1.1:8443
    -listen on :53 and forward all udp requests to 8.8.8.8:53 via remote ss server.

  ./glider -listen socks5://:1080 -listen http://:8080 -forward ss://method:pass@1.1.1.1:8443
    -listen on :1080 as socks5 server, :8080 as http proxy server, forward all requests via remote ss server.

  ./glider -listen redir://:1081 -dns=:53 -dnsserver=8.8.8.8:53 -forward ss://method:pass@server1:port1,ss://method:pass@server2:port2
    -listen on :1081 as transparent redirect server, :53 as dns server, use forward chain: server1 -> server2.

  ./glider -listen socks5://:1080 -forward ss://method:pass@server1:port1 -forward ss://method:pass@server2:port2 -strategy rr
    -listen on :1080 as socks5 server, forward requests via server1 and server2 in round robin mode.

  ./glider -verbose -dns=:53 -dnsserver=8.8.8.8:53 -dnsrecord=www.example.com/1.2.3.4
    -listen on :53 as dns server, forward dns requests to 8.8.8.8:53, return 1.2.3.4 when resolving www.example.com.

Services:
  dhcpd: service=dhcpd,INTERFACE,START_IP,END_IP
    e.g.,service=dhcpd,eth1,192.168.50.100,192.168.50.199

run:

glider -verbose -listen :8443 -forward SCHEME://HOST:PORT

glider -config CONFIGPATH

glider -config CONFIGPATH -listen :8080 -verbose

Config

Service

  • dhcpd:
    • service=dhcpd,INTERFACE,START_IP,END_IP
    • e.g., service=dhcpd,eth1,192.168.50.100,192.168.50.199

Linux Service

Customize Build

You can customize and build glider if you want a smaller binary (click to see details)
  1. Clone the source code:
git clone https://github.com/nadoo/glider
  1. Customize features:
open `feature.go` & `feature_linux.go`, comment out the packages you don't need
// _ "github.com/nadoo/glider/proxy/kcp"
  1. Build it(requires Go 1.15+ )
cd glider && go build -v -i -ldflags "-s -w"

Proxy & Protocol Chains

In glider, you can easily chain several proxy servers or protocols together (click to see details)

  • Chain proxy servers:

    forward=http://1.1.1.1:80,socks5://2.2.2.2:1080,ss://method:pass@3.3.3.3:8443@

  • Chain protocols: https proxy (http over tls)

    forward=tls://server.com:443,http://

  • Chain protocols: vmess over ws over tls

    forward=tls://server.com:443,ws://,vmess://5a146038-0b56-4e95-b1dc-5c6f5a32cd98@?alterID=2

  • Chain protocols and servers:

    forward=socks5://1.1.1.1:1080,tls://server.com:443,vmess://5a146038-0b56-4e95-b1dc-5c6f5a32cd98@?alterID=2

  • Chain protocols in listener: https proxy server

    listen=tls://:443?cert=crtFilePath&key=keyFilePath,http://
  • ipset: netlink ipset package for Go.
  • conflag: a drop-in replacement for Go's standard flag package with config file support.
  • ArchLinux: a great linux distribution with glider pre-built package.
  • urlencode: you should encode special characters in scheme url. e.g., @->%40

Documentation

The Go Gopher

There is no documentation for this package.

Source Files

View all Source files

Directories

Path Synopsis
http
Package http implements a http proxy.
 Package http implements a http proxy.
kcp
mixed
obfs
Package obfs implements simple-obfs of ss
 Package obfs implements simple-obfs of ss
redir
reject
Package reject implements a virtual proxy which always reject requests.
 Package reject implements a virtual proxy which always reject requests.
socks
socks4
socks5
Package socks5 implements a socks5 proxy.
 Package socks5 implements a socks5 proxy.
ss
ssh
ssr
tcptun
tls
trojan
udptun
unix
vless
vmess
ws
Package ws implements a simple websocket client.
 Package ws implements a simple websocket client.
dhcpd

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