作者:Dionyseus
http://www.skyperunners.com/instant/ (发送匿名消息)
http://www.skyperunners.com/instant/?abs=1 (发送署名消息)
点击上面的网址,你可以通过它给任何Skype用户发送消息,这个功能的实现,可以使没有安装Skype的用户只要上网就可以给任何一个Skype用户发送消息。效果如下图:
skype杂志报道了Skype超级节点全球图(1.1MB)和发布这张图的Coobol公司,并提出了十个问题:
1、什么是超级节点间距的频率贡献?
2、为何中国的超级节点未被标注在图上?
3、如何定期对超级节点的数目进行校验,每天还是每周?
4、有多少超级节点是Skype自己控制而非用户自己担任?
5、攻击多少个超级节点才会使剩余超级节点过载而瘫痪?
6、得到超级节点支持的Skype用户范围是多大?
7、多少个超级节点正在负责连接通话?
8、地区间普通节点和超级节点的比例相近吗?还是会变化?
9、超级节点的数目和活跃Skype用户的数目有联系吗?还是每分钟都在变化?
10、如果你能确定Skype超级节点的IP地址,你能测量这个节点上交通流量的繁忙情况吗?还是各类服务的中转带宽?
维基百科上关于超级节点(SuperNode)词条的解释:
In peer-to-peer networking, a supernode works as one of that network's relayers and proxy servers, handling data flow and connections for other users. This usually requires a fairly fast Internet connection with a lot of bandwidth and a modest amount of CPU time, as a lot of data will invariably pass the supernode and needs to be processed.
Some peer-to-peer designs allow for the user to choose whether they ever want to be treated as supernodes; others do not. Popular Skype is one of the latter, and spawned another minor controversy with this particular attribute.
搜索引擎 | 搜索力指数 | 排名升降 | 份额 |
1. Baidu |
157979106 |
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55.84% |
2. 3721 |
46530262 |
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16.45% |
3. Google |
33774922 |
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11.94% |
4. Yahoo |
24666302 |
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8.72% |
5. Yisou |
6374578 |
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2.25% |
6. Sogou |
5860614 |
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2.07% |
7. QQ |
3995706 |
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1.41% |
8. 163 |
1583790 |
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0.56% |
9. iAsk |
1459362 |
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0.52% |
10. Zhongsou |
381814 |
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0.13% |
11. Tom |
199370 |
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0.07% |
12. Sohu |
74942 |
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0.03% |
13. China |
33394 |
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0.01% |
14. Sina |
134 |
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0.00% |