coTurn是一个开源的STUN和TURN及ICE服务项目，只是不支持Windows。
为了在window平台上使用coTurn源码，需要在windows平台下安装Cygwin环境，并编译coTurn源码，使其可以运行在windows平台上。

步骤：

1、安装Cygwin，地址：https://cygwin.com/install.html，按照其说明进行安装。参照说明地址：https://cygwin.com/cygwin-ug-net/cygwin-ug-net.html

最好选择64位的，我一开始用的32位的，安装gcc总是报错，换到64位就可以了（也许是我机子问题）。

　  安装过程中选择的镜像源地址，为了更加快速，使用http://mirrors.163.com/cygwin/

这里有几个坑，要注意，不然编译的时候 会报错：

在这个页面，要在del列表下选择四个工具库：

①gcc

②openssl

③libevent

④make（bin和source都要选择）

2、下载coTurn源码。目前Release最新版本的地址为：https://codeload.github.com/coturn/coturn/zip/4.5.0.4

解压后，把coturn-4.5.0.4文件夹放在cygwin的安装路劲C:\cygwin64\bin下。后面就开始编译了。

3、编译:

编译过程：

$ ./configure
install 是 /usr/bin/install
sqlite3 是 /cygdrive/c/Users/Administrator/AppData/Local/Android/Sdk/platform-tools/sqlite3
Use TMP dir /var/tmp
Compiler: cc
Library option -lsocket cannot be used
CYGWIN ?
Library option -lwldap64 cannot be used
Library option -lintl cannot be used
Library option -lnsl cannot be used
Sockets code is fine: no sin_len field present
Ignore IP_RECVERR
Crypto SSL lib found.
SSL lib found.
Libevent2 development found.
Libevent2 runtime found.
Libevent2 runtime 'extra' found.
Libevent2 openssl found.
Libevent2 pthreads found.
Library option -lsqlite3 cannot be used
SQLite3 development library cannot be found.

SQLite DEVELOPMENT LIBRARY (libsqlite3) AND/OR HEADER (sqlite3.h)
        ARE NOT INSTALLED PROPERLY ON THIS SYSTEM.
        THAT'S OK BUT THE TURN SERVER IS BUILDING WITHOUT SQLITE SUPPORT.

POSTGRESQL DEVELOPMENT LIBRARY (libpq.a) AND/OR HEADER (libpq-fe.h)
        ARE NOT INSTALLED PROPERLY ON THIS SYSTEM.
        THAT'S OK BUT THE TURN SERVER IS BUILDING WITHOUT POSTGRESQL DATABASE SUPPORT.

MYSQL DEVELOPMENT LIBRARY (libmysqlclient) AND/OR HEADER (mysql.h)
        ARE NOT INSTALLED PROPERLY ON THIS SYSTEM.
        THAT'S OK BUT THE TURN SERVER IS BUILDING WITHOUT MYSQL DATABASE SUPPORT.

MONGODB DEVELOPMENT LIBRARIES (libmongoc-1.0 and libbson-1.0) AND/OR HEADER (mongoc.h)
        ARE NOT INSTALLED PROPERLY ON THIS SYSTEM.
        THAT'S OK BUT THE TURN SERVER IS BUILDING WITHOUT MONGODB SUPPORT.

HIREDIS DEVELOPMENT LIBRARY (libhiredis.*) AND/OR HEADERS (hiredis/*.h)
        ARE NOT INSTALLED PROPERLY ON THIS SYSTEM.
        THAT'S OK BUT THE TURN SERVER IS BUILDING WITHOUT REDIS SUPPORT.

PREFIX=/usr/local LOCALSTATEDIR=/usr/local/var OSLIBS= -L/usr/local/lib/ -L/usr/local/lib/ -lrt -lwldap32 -lresolv -lcrypto -lssl -levent_core -levent_extra -levent_openssl -levent_pthreads  -Wl,-rpath,/usr/local/lib/ -Wl,-rpath,/usr/local/lib/ -Wl,-rpath,/usr/local/lib DBLIBS= OSCFLAGS=-g  -Wall -Wno-deprecated-declarations -Wextra -Wformat-security -Wnested-externs -Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith -Wcast-qual -I/usr/local/include -I/usr/local/include/ -I/usr/local/include  -DTURN_HAS_DAEMON       -DINSTALL_PREFIX=/usr/local -DTURNDB=/usr/local/var/db/turndb DBCFLAGS=
Makefile created: success.

$ make
mkdir -p build/obj
cc  -g  -Wall -Wno-deprecated-declarations -Wextra -Wformat-security -Wnested-externs -Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith -Wcast-qual -I/usr/local/include -I/usr/local/include/ -I/usr/local/include  -DTURN_HAS_DAEMON       -DINSTALL_PREFIX=/usr/local -DTURNDB=/usr/local/var/db/turndb -Isrc -Isrc/apps/common -Isrc/server -Isrc/client -Isrc/client++ -I/usr/local/include/ -I/usr/local/include/  -c src/client/ns_turn_ioaddr.c -o build/obj/ns_turn_ioaddr.o
mkdir -p build/obj
cc  -g  -Wall -Wno-deprecated-declarations -Wextra -Wformat-security -Wnested-externs -Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith -Wcast-qual -I/usr/local/include -I/usr/local/include/ -I/usr/local/include  -DTURN_HAS_DAEMON       -DINSTALL_PREFIX=/usr/local -DTURNDB=/usr/local/var/db/turndb -Isrc -Isrc/apps/common -Isrc/server -Isrc/client -Isrc/client++ -I/usr/local/include/ -I/usr/local/include/  -c src/client/ns_turn_msg_addr.c -o build/obj/ns_turn_msg_addr.o
mkdir -p build/obj
cc  -g  -Wall -Wno-deprecated-declarations -Wextra -Wformat-security -Wnested-externs -Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith -Wcast-qual -I/usr/local/include -I/usr/local/include/ -I/usr/local/include  -DTURN_HAS_DAEMON       -DINSTALL_PREFIX=/usr/local -DTURNDB=/usr/local/var/db/turndb -Isrc -Isrc/apps/common -Isrc/server -Isrc/client -Isrc/client++ -I/usr/local/include/ -I/usr/local/include/  -c src/client/ns_turn_msg.c -o build/obj/ns_turn_msg.o
mkdir -p lib
ar -r lib/libturnclient.a build/obj/ns_turn_ioaddr.o build/obj/ns_turn_msg_addr.o build/obj/ns_turn_msg.o
ar: 正在创建 lib/libturnclient.a
pwd
/cygdrive/e/workspace/webrtc/coturn-master
mkdir -p bin
cc  -g  -Wall -Wno-deprecated-declarations -Wextra -Wformat-security -Wnested-externs -Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith -Wcast-qual -I/usr/local/include -I/usr/local/include/ -I/usr/local/include  -DTURN_HAS_DAEMON       -DINSTALL_PREFIX=/usr/local -DTURNDB=/usr/local/var/db/turndb -Isrc -Isrc/apps/common -Isrc/server -Isrc/client -Isrc/client++ -I/usr/local/include/ -I/usr/local/include/  src/apps/oauth/oauth.c src/apps/common/apputils.c src/apps/common/ns_turn_utils.c src/apps/common/stun_buffer.c -o bin/turnutils_oauth -Llib -lturnclient -Llib -L/usr/local/lib/ -L/usr/local/lib/ -lrt -lwldap32 -lresolv -lcrypto -lssl -levent_core -levent_extra -levent_openssl -levent_pthreads  -Wl,-rpath,/usr/local/lib/ -Wl,-rpath,/usr/local/lib/ -Wl,-rpath,/usr/local/lib
pwd
/cygdrive/e/workspace/webrtc/coturn-master
mkdir -p bin
cc  -g  -Wall -Wno-deprecated-declarations -Wextra -Wformat-security -Wnested-externs -Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith -Wcast-qual -I/usr/local/include -I/usr/local/include/ -I/usr/local/include  -DTURN_HAS_DAEMON       -DINSTALL_PREFIX=/usr/local -DTURNDB=/usr/local/var/db/turndb -Isrc -Isrc/apps/common -Isrc/server -Isrc/client -Isrc/client++ -I/usr/local/include/ -I/usr/local/include/  src/apps/natdiscovery/natdiscovery.c src/apps/common/apputils.c src/apps/common/ns_turn_utils.c src/apps/common/stun_buffer.c -o bin/turnutils_natdiscovery -Llib -lturnclient -Llib -L/usr/local/lib/ -L/usr/local/lib/ -lrt -lwldap32 -lresolv -lcrypto -lssl -levent_core -levent_extra -levent_openssl -levent_pthreads  -Wl,-rpath,/usr/local/lib/ -Wl,-rpath,/usr/local/lib/ -Wl,-rpath,/usr/local/lib
pwd
/cygdrive/e/workspace/webrtc/coturn-master
mkdir -p bin
cc  -g  -Wall -Wno-deprecated-declarations -Wextra -Wformat-security -Wnested-externs -Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith -Wcast-qual -I/usr/local/include -I/usr/local/include/ -I/usr/local/include  -DTURN_HAS_DAEMON       -DINSTALL_PREFIX=/usr/local -DTURNDB=/usr/local/var/db/turndb -Isrc -Isrc/apps/common -Isrc/server -Isrc/client -Isrc/client++ -I/usr/local/include/ -I/usr/local/include/  src/apps/stunclient/stunclient.c src/apps/common/apputils.c src/apps/common/ns_turn_utils.c src/apps/common/stun_buffer.c -o bin/turnutils_stunclient -Llib -lturnclient -Llib -L/usr/local/lib/ -L/usr/local/lib/ -lrt -lwldap32 -lresolv -lcrypto -lssl -levent_core -levent_extra -levent_openssl -levent_pthreads  -Wl,-rpath,/usr/local/lib/ -Wl,-rpath,/usr/local/lib/ -Wl,-rpath,/usr/local/lib
pwd
/cygdrive/e/workspace/webrtc/coturn-master
mkdir -p bin
cc  -g  -Wall -Wno-deprecated-declarations -Wextra -Wformat-security -Wnested-externs -Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith -Wcast-qual -I/usr/local/include -I/usr/local/include/ -I/usr/local/include  -DTURN_HAS_DAEMON       -DINSTALL_PREFIX=/usr/local -DTURNDB=/usr/local/var/db/turndb -Isrc -Isrc/apps/common -Isrc/server -Isrc/client -Isrc/client++ -I/usr/local/include/ -I/usr/local/include/  src/apps/rfc5769/rfc5769check.c src/apps/common/apputils.c src/apps/common/ns_turn_utils.c src/apps/common/stun_buffer.c -o bin/turnutils_rfc5769check -Llib -lturnclient -Llib -L/usr/local/lib/ -L/usr/local/lib/ -lrt -lwldap32 -lresolv -lcrypto -lssl -levent_core -levent_extra -levent_openssl -levent_pthreads  -Wl,-rpath,/usr/local/lib/ -Wl,-rpath,/usr/local/lib/ -Wl,-rpath,/usr/local/lib
mkdir -p bin
cc  -g  -Wall -Wno-deprecated-declarations -Wextra -Wformat-security -Wnested-externs -Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith -Wcast-qual -I/usr/local/include -I/usr/local/include/ -I/usr/local/include  -DTURN_HAS_DAEMON       -DINSTALL_PREFIX=/usr/local -DTURNDB=/usr/local/var/db/turndb -Isrc -Isrc/apps/common -Isrc/server -Isrc/client -Isrc/client++ -I/usr/local/include/ -I/usr/local/include/  src/apps/uclient/uclient.c src/apps/uclient/startuclient.c src/apps/uclient/mainuclient.c src/apps/common/apputils.c src/apps/common/ns_turn_utils.c src/apps/common/stun_buffer.c -o bin/turnutils_uclient -Llib -lturnclient -Llib -L/usr/local/lib/ -L/usr/local/lib/ -lrt -lwldap32 -lresolv -lcrypto -lssl -levent_core -levent_extra -levent_openssl -levent_pthreads  -Wl,-rpath,/usr/local/lib/ -Wl,-rpath,/usr/local/lib/ -Wl,-rpath,/usr/local/lib
mkdir -p bin
rm -rf bin/turnadmin
cc  -g  -Wall -Wno-deprecated-declarations -Wextra -Wformat-security -Wnested-externs -Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith -Wcast-qual -I/usr/local/include -I/usr/local/include/ -I/usr/local/include  -DTURN_HAS_DAEMON       -DINSTALL_PREFIX=/usr/local -DTURNDB=/usr/local/var/db/turndb -Isrc -Isrc/apps/common -Isrc/server -Isrc/client -Isrc/client++ -I/usr/local/include/ -I/usr/local/include/  -DTURN_NO_PQ -DTURN_NO_MYSQL -DTURN_NO_SQLITE -DTURN_NO_MONGO -DTURN_NO_HIREDIS src/apps/relay/ns_ioalib_engine_impl.c src/apps/relay/turn_ports.c src/apps/relay/http_server.c -Ilib src/apps/relay/mainrelay.c src/apps/relay/netengine.c src/apps/relay/libtelnet.c src/apps/relay/turn_admin_server.c src/apps/relay/userdb.c src/apps/relay/tls_listener.c src/apps/relay/dtls_listener.c src/apps/common/hiredis_libevent2.c src/apps/relay/dbdrivers/dbdriver.c src/apps/relay/dbdrivers/dbd_sqlite.c src/apps/relay/dbdrivers/dbd_pgsql.c src/apps/relay/dbdrivers/dbd_mysql.c src/apps/relay/dbdrivers/dbd_mongo.c src/apps/relay/dbdrivers/dbd_redis.c src/apps/common/apputils.c src/apps/common/ns_turn_utils.c src/apps/common/stun_buffer.c src/client/ns_turn_ioaddr.c src/client/ns_turn_msg_addr.c src/client/ns_turn_msg.c  src/server/ns_turn_allocation.c src/server/ns_turn_maps_rtcp.c src/server/ns_turn_maps.c src/server/ns_turn_server.c -o bin/turnserver  -L/usr/local/lib/ -L/usr/local/lib/ -lrt -lwldap32 -lresolv -lcrypto -lssl -levent_core -levent_extra -levent_openssl -levent_pthreads  -Wl,-rpath,/usr/local/lib/ -Wl,-rpath,/usr/local/lib/ -Wl,-rpath,/usr/local/lib
cd bin; ln -s turnserver turnadmin
mkdir -p bin
cc  -g  -Wall -Wno-deprecated-declarations -Wextra -Wformat-security -Wnested-externs -Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith -Wcast-qual -I/usr/local/include -I/usr/local/include/ -I/usr/local/include  -DTURN_HAS_DAEMON       -DINSTALL_PREFIX=/usr/local -DTURNDB=/usr/local/var/db/turndb -Isrc -Isrc/apps/common -Isrc/server -Isrc/client -Isrc/client++ -I/usr/local/include/ -I/usr/local/include/  src/apps/peer/mainudpserver.c src/apps/peer/udpserver.c src/apps/common/apputils.c src/apps/common/ns_turn_utils.c src/apps/common/stun_buffer.c -o bin/turnutils_peer -Llib -lturnclient -Llib -L/usr/local/lib/ -L/usr/local/lib/ -lrt -lwldap32 -lresolv -lcrypto -lssl -levent_core -levent_extra -levent_openssl -levent_pthreads  -Wl,-rpath,/usr/local/lib/ -Wl,-rpath,/usr/local/lib/ -Wl,-rpath,/usr/local/lib
rm -rf include
mkdir -p include/turn/client
cp -pf src/client/*.h include/turn/client/
cp -pf src/client++/*.h include/turn/client/
cp -pf src/ns_turn_defs.h include/turn/
install -d sqlite
rm -rf sqlite/turndb
sqlite3 sqlite/turndb < turndb/schema.sql

$ make install
install -d /usr/local
install -d /usr/local/bin
install -d /usr/local/var/db
install -d /usr/local/man/man1
install -d /usr/local/etc
install -d /usr/local/lib
install -d /usr/local/share/examples/turnserver
install -d /usr/local/share/doc/turnserver
install -d /usr/local/share/turnserver
install -d /usr/local/include/turn
install bin/turnserver /usr/local/bin
install bin/turnadmin /usr/local/bin
install bin/turnutils_uclient /usr/local/bin
install bin/turnutils_peer /usr/local/bin
install bin/turnutils_stunclient /usr/local/bin
install bin/turnutils_oauth /usr/local/bin
install bin/turnutils_natdiscovery /usr/local/bin
install man/man1/turnserver.1 /usr/local/man/man1/
install man/man1/turnadmin.1 /usr/local/man/man1/
install man/man1/turnutils.1 /usr/local/man/man1/
install man/man1/turnutils_uclient.1 /usr/local/man/man1/
install man/man1/turnutils_stunclient.1 /usr/local/man/man1/
install man/man1/turnutils_oauth.1 /usr/local/man/man1/
install man/man1/turnutils_natdiscovery.1 /usr/local/man/man1/
install man/man1/turnutils_peer.1 /usr/local/man/man1/
install man/man1/coturn.1 /usr/local/man/man1/
install lib/libturnclient.a /usr/local/lib
install LICENSE /usr/local/share/doc/turnserver
install README.turnserver /usr/local/share/doc/turnserver
install README.turnadmin /usr/local/share/doc/turnserver
install README.turnutils /usr/local/share/doc/turnserver
install INSTALL /usr/local/share/doc/turnserver
install postinstall.txt /usr/local/share/doc/turnserver
install turndb/schema.sql /usr/local/share/doc/turnserver
install turndb/schema.sql /usr/local/share/turnserver
install turndb/schema.mongo.sh /usr/local/share/doc/turnserver
install turndb/schema.mongo.sh /usr/local/share/turnserver
install turndb/testredisdbsetup.sh /usr/local/share/turnserver
install turndb/testmongosetup.sh /usr/local/share/turnserver
install turndb/testsqldbsetup.sql /usr/local/share/turnserver
install turndb/schema.userdb.redis /usr/local/share/doc/turnserver
install turndb/schema.userdb.redis /usr/local/share/turnserver
install turndb/schema.stats.redis /usr/local/share/doc/turnserver
install turndb/schema.stats.redis /usr/local/share/turnserver
if [ -f sqlite/turndb ] ; then install sqlite/turndb /usr/local/var/db/turndb; fi
install examples/etc/turnserver.conf /usr/local/etc/turnserver.conf.default
cp -rpf examples/etc /usr/local/share/examples/turnserver
cp -rpf examples/scripts /usr/local/share/examples/turnserver
rm -rf /usr/local/share/examples/turnserver/scripts/rfc5769.sh
cp -rpf include/turn/client /usr/local/include/turn
install include/turn/ns_turn_defs.h /usr/local/include/turn
cat /usr/local/share/doc/turnserver/postinstall.txt
==================================================================

1) If your system supports automatic start-up system daemon services,
then to enable the turnserver as a system service that is automatically
started, you have to:

        a) Create and edit /etc/turnserver.conf or
        /usr/local/etc/turnserver.conf .
        Use /usr/local/etc/turnserver.conf.default as an example.

        b) For user accounts settings: set up SQLite or PostgreSQL or
        MySQL or MongoDB or Redis database for user accounts.
        Use /usr/local/share/turnserver/schema.sql as SQL database schema,
        or use /usr/local/share/turnserver/schema.userdb.redis as Redis
        database schema description and/or
        /usr/local/share/turnserver/schema.stats.redis
        as Redis status & statistics database schema description.

        If you are using SQLite, the default database location is in
        /var/db/turndb or in /usr/local/var/db/turndb or in /var/lib/turn/turndb.

        c) add whatever is necessary to enable start-up daemon for the
        /usr/local/bin/turnserver.

2) If you do not want the turnserver to be a system service,
   then you can start/stop it "manually", using the "turnserver"
   executable with appropriate options (see the documentation).

3) To create database schema, use schema in file
/usr/local/share/turnserver/schema.sql.

4) For additional information, run:

   $ man turnserver
   $ man turnadmin
   $ man turnutils

==================================================================

 

4、配置

 在bin目录下生成六个可执行文件

turnadmin　　turnutils_peer.exe　　turnutils_stunclient.exe　　turnserver.exe　　turnutils_rfc5769check.exe　　turnutils_uclient.exe

turnserver.exe 就是我们需要的服务器. 

turnadmin 用来管理账户. 

turnutils_stunclient.exe 用于测试stun服务

turnutils_uclient.exe 用于测试turn服务. 模拟多个UDP,TCP,TLS or DTLS 类型的客户端

example 目录主要是示范如何配置和使用turn. 包含一些测试用例. 

example/etc 下是pem证书和conf配置文件

example/var/db 下是sqlite的db库. 用于示范数据库的格式.

coturn 支持三种配置. 命令行, conf文件和数据库.

数据库支持sqlite, mysql, postgresql, MongoDB, redis.目前测试的Cygwin环境下编译的coTurn不支持MongoDB和redis,因为暂时用不到，所以也就没有查找如何才能编译支持到上述数据库

更具体的说明可以看源码目录下的README.turnserver README.turnadmin README.turnutils

examples\scripts 下一些测试用例: 

loadbalance 示范如何进行负载均衡.  设置一个master turn server 然后配置若干个slave turn server. 

longtermsecure 示范如何使用long-term 验证

longtermsecuredb 与 longtermsecure 类似, 不过是从数据库配置

shorttermsecure 示范如何使用short-term验证. 

restapi 示范了web方面的使用. 

stun 定义了两种验证方式. 

Long-Term Credential

具体可以参考stun标准 http://tools.ietf.org/html/rfc5389#section-15.4

若用于WebRTC，必须使用long-term

简单配置：

turnserver -o -a -f -v --mobility -m 10 --max-bps=100000 --min-port=32355 --max-port=65535 --user=webrtc0:webrtc1234 --user=webrtc1:webrtc1234 -r demo

-m 10 表示启动十个relay线程. 

当TURN Server用于WebRTC时，必须使用long-term credential mechanism,  即指定 -a 或者 --lt-cred-mech

--max-bps=100000 限制最大速度为100KB/s. 

添加了两个用户webrtc0 和webrtc1. 

可以直接使用turnutils_uclient -u ling -w webrtc1234 来测试. turnutils_uclient 有很多参数可以配置的. 

1 2 3 4 5

webrtc::PeerConnectionInterface::IceServer turnServer; turnServer.uri = "turn:192.168.1.113"; turnServer.username = "webrtc0"; turnServer.password = "webrtc1234"; servers.push_back(turnServer);

下面的配置文件和上面的配置命令是两种方式，在实际应用中只能用一种。　　

在这里要注意，在bin路径下，建配置文件turnserver.conf，内容为：

listening-ip=192.168.1.113//这是个公网ip
listening-port=3478

#relay-ip=0.0.0.0
external-ip=0.0.0.0

min-port=59000
max-port=65000

Verbose
fingerprint

no-stdout-log
syslog

cert=pem/turn_server_cert.pem
pkey=pem/turn_server_pkey.pem

user=demo:demo

no-tcp
no-tls
no-tcp-relay
stun-only
#secure-stun

如果用的是阿里云服务器，要开放3478端口，tcp、udp都打开。

这里turnserver就开启成功了，测试可以用https://webrtc.github.io/samples/src/content/peerconnection/trickle-ice/ 来测试服务器是否成功。

1. Short-Term Credential

 

参考链接:

https://www.cnblogs.com/mobilecard/p/6503301.html