stun 协议原理？

一、stun 协议原理？

stun协议是一种网络协议，是客户机-服务器的一种协议，由RFC 3489 定义。

该协议定义了一些消息格式，大体上分为Request/Response。

这个协议主要作用就是可以用来在两个处于NAT路由器之后的主机之间建立UDP通信。

它允许位于NAT后的客户端找出自己的公网地址，确定自己位于的NAT是哪种类型，以及NAT为这个客户端的本地端口所绑定的对外端口。

譬如，一个软件包可能会包括一个STUN客户端A，这个客户端A会向STUN服务器发送请求，之后，服务器就会向STUN客户端A发送NAT路由器的公网IP地址以及NAT为这个客户端A开通的端口号。

这个端口号是允许从别的客户端B传入流量传回到这个客户端A的。 

二、stun固定搭配？

stun 带有晕眩效果的技能，击昏，使震惊，私网穿透协议

Stun固定搭配如下：

stun gun 击晕枪，电枪

Stun Mastery 眩晕重拳，迷惑攻击

STUN GRENADE 震撼弹，震眩弹

Stun Shot 顿杆，晕眩射击

Trap Stun 陷阱无力化，陷阱麻痹

STUN ROD 电击棒

Stun knowledge 击晕知识，击晕技巧

Power Word Stun 律令震慑

Be stunned by 使震惊

三、stun是什么车？

stun是奔腾t77的车。

奔腾品牌创立于2006年5月18日。2021年5月18日，一汽奔腾发布全新品牌战略，并基于LOGO“世界之窗”全面升级，打造全新奔腾品牌标志。新奔腾的品牌理念：持续为用户出行创造惊喜。新奔腾的品牌定位：中国主流汽车市场的中高端品牌。

奔腾t系列以“聚势共赢创变新奔腾”为主题的2021年一汽奔腾经销商大会已经于12月19日在长春召开，会上一汽奔腾公司副总经理金叙龙发布奔腾“十四五”产品规划，其中包括2021年将会推出的3款全新车型以及3款在售车型的升级产品。在“T家族”的产品布局中，一汽奔腾已经有中大型SUV-T99、紧凑级SUV-T77、小型SUV-T33，唯独缺失T55这款车型，因此T55车型的推出是时间问题。

四、stun 防火墙配置？

配置stun服务器实现穿墙

Turn服务器的配置流程

Webrtc是基于P2P的，在两个客户端建立连接之前需要服务器建立连接，这时两台设备一般都处于一个或者多个NAT中，那么两台设备建立连接就需要穿墙技术。

这时就用到了turn服务器，他包括stun服务器,stun服务器主要用来获得外网的地址，而turn服务器则负责在P2P连接失败时进行转发

推荐一个部署turn服务器的方式，下载地址https://github.com/coturn/coturn

下载完成以后进行安装，cd到下载coturn的目录下

执行./configure

make

make install

执行时会报错Libevent2 development is not installed properly

ERROR: Libevent2 development libraries are not installed properly in required location.

ERROR: may be you have just too old libevent tool - then you have to upgrade it.

See the INSTALL file.

说明你需要安装libevent，以ubuntu为例执行命令进行安装sudo apt-get install libevent-dev

如果执行成功会在conturn的bin目录下生成一些文件

配置iceServer

turnserver -o -a -f -v --mobility -m 10 --max-bps=100000 --min-port=32355 --max-port=65535 --user=username1:password1 --user=username2:password2 -r demo –m 10

其中username1和username2分配了两个不同的账号和密码

在服务器内的配置

webrtc的服务器一般使用SkyRTC,下载地址https://github.com/LingyuCoder/SkyRTC-demo

下载后按照文档进行安装和配置

配置stun需要在SkyRTC-client.js

内配置iceServers，配置的端口默认是3478,格式如下

“url“: 'stun:ip:3478'

“username”: 'username1’

“password”:’password1’

五、彼岸游境怎么打stun？

打开进入游戏当中，我们点击键盘的w键，控制人物角色之后，点击鼠标左键 将人物角色拿起手榴弹即可打死stun

六、彼岸游境stun怎么打？

进入游戏，　　可以先现在AI角色先加buff先让AI角色当主操作打配合打出3连SSC触发出连锁同步。

　　然后在切换到别的角色满3个sp打完配合队友在打3个SSC在触发同步完成即可

七、stun的形容词和副词？

stun不是形容词和副词；

stun，英语单词，名词、及物动词，作名词时意为“昏迷；打昏；惊倒；令人惊叹的事物”。作及物动词时意为“使震惊；打昏；给以深刻的印象”。

短语搭配

Stun Mastery眩晕重拳 ; 迷惑攻击

Stun Shot顿杆

Trap Stun陷阱无力化 ; 陷阱麻痹

Stun Grenades震撼弹 ; 震爆弹

Stun Shoot昏迷射击 ; 眩晕射击 ; 昏厥射击

Ranged stun远程击晕

Stun Tilt沉寂星震

Stun Ray慑射线

例句：

In this stage, Talug will resist all stuns—including the stun associated with the Flame Mines.

在此阶段，塔鲁格会抵抗所有的昏迷效果—包括烈焰矿井产生的昏迷。

八、CentOS Stun: Everything You Need to Know About CentOS Security

The Importance of CentOS Security

When it comes to server security, CentOS is one of the most popular choices for businesses and individuals alike. It is a reliable and stable operating system based on the Linux kernel. However, no operating system is immune to vulnerabilities and potential attacks. That's why understanding CentOS security and how to protect your system is crucial.

What is Stun?

STUN stands for Session Traversal Utilities for NAT. It is a protocol used by networked devices to discover their public IP address and determine the type of NAT they are behind. STUN is particularly useful in cases where NAT traversal is required for real-time communication, such as VoIP or video conferencing.

The Potential Security Risks of STUN on CentOS

While STUN itself is not inherently insecure, certain implementations or configurations can introduce security risks. For CentOS users, it's important to be aware of these risks to ensure the overall security of your server.

Oversights or misconfigurations in STUN servers can potentially expose your network to attacks or unauthorized access. It is crucial to stay up-to-date with the latest patches and security advisories for the STUN software you are using on CentOS. Regularly monitoring and testing your STUN server for any vulnerabilities is also recommended.

Best Practices for CentOS STUN Security

To enhance the security of your CentOS server using STUN, consider implementing the following best practices:

• Regularly update CentOS: Keep your CentOS server up-to-date with the latest security patches and updates to ensure that known vulnerabilities are addressed.
• Use reputable STUN software: Choose well-known and trusted STUN software that has a good track record for security.
• Secure your STUN server: Implement secure configurations, such as strong passwords, firewall rules, and access controls to protect your server from unauthorized access.
• Monitor server logs: Regularly review server logs for any suspicious activities or attempts to exploit your STUN server.
• Encrypt communication: If possible, use encrypted communication protocols, such as TLS, to protect data exchanged between your server and clients.

Conclusion

CentOS is a widely used and trusted operating system in the server community. However, it's essential to pay attention to the security aspects of any protocol or software you use on CentOS. By following best practices and staying informed about potential risks, you can ensure the security and integrity of your CentOS server, particularly in the context of using STUN. Remember to regularly update your CentOS system, employ secure configurations, and monitor your server's logs for any suspicious activities.

Thank you for reading this article and we hope it has provided you with valuable insights into CentOS security and the important considerations when it comes to using STUN. Implementing the recommended best practices will help safeguard your server and mitigate potential security risks.

九、webrtc stun服务器必须是公网ip吗？

一般需要公网IP，如果不是公网IP，那么只能让两个都能连上该服务器的设备进行通信 也就是限制了它应尽的功能，这个stun服务器主要用来穿透防火墙，进行两个网络的通信，如果在同一个内网通信，就没有太大的意义，但也是可以实现的

十、stun的名词，形容词和副词形式？

stun，英语单词，名词、及物动词，作名词时意为“昏迷；打昏；惊倒；令人惊叹的事物”。作及物动词时意为“使震惊；打昏；给以深刻的印象”。

短语搭配

Stun Mastery眩晕重拳 ; 迷惑攻击

Stun Shot顿杆

Trap Stun陷阱无力化 ; 陷阱麻痹

Stun Grenades震撼弹 ; 震爆弹

Stun Shoot昏迷射击 ; 眩晕射击 ; 昏厥射击

Ranged stun远程击晕

Stun Tilt沉寂星震

Stun Ray慑射线

双语例句

In this stage, Talug will resist all stuns—including the stun associated with the Flame Mines.

在此阶段，塔鲁格会抵抗所有的昏迷效果—包括烈焰矿井产生的昏迷。

Blessing of Protection: This spell can no longer be cast on others when stunned. It can only be cast on self (to break the stun) under those circumstances.

保护祝福：这个法术不再能在昏迷时对其他人施放。在这些状况下它仅能对自己施放（解除昏迷）。

The cooldown for this ability might be longer than the Charge ability, but it will also apply a stun effect so you can make sure the target will still be there when you land.

这个技能的冷却时间可能会比冲锋要长一些，但是它同样会提供一个昏迷效果所以你可以确定当你落地时目标仍然会呆在那里。