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星期二, 12月 30, 2014

Gmail completely blocked in China

All Google products in China have been severely disrupted since June of this year and Chinese users have not been able to access Gmail via its web interface since the summer. However, email protocols such as IMAP, SMTP and POP3 had been accessible but are not anymore. These protocols are used in the default email app on iPhone, Microsoft Outlook on PC and many more email clients.

On December 26, GFW started to block large numbers of IP addresses used by Gmail. These IP addresses are used by IMAP/SMTP/POP3. Chinese users now have no way of accessing Gmail behind the GFW. Before, they could still send or receive emails via email clients even though Gmail's web interface was not accessible. 

Google's own traffic chart shows a sharp decline of Chinese traffic to Gmail. 

Below is a ping request to the Gmail SMTP server, which is completely inaccessible in China.

 

星期一, 11月 24, 2014

GreatFire解封BBC中文网

GreatFire.org从即日起为BBC中文网提供免翻墙镜像网站,供中国大陆用户浏览。

BBC中文网在建网初期,即被中国防火墙封锁。中国的用户只能通过VPN访问其网站。BBC也曾推荐翻墙软件赛风。

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BBC中文网的免翻墙网站上线时间,恰逢台湾地方选举。因此,大陆网民有机会一睹,台湾地方选举是如何在一个透明、公开、民主的过程中进行。BBC中文网将对候选人进行深度介绍与分析。

由于中国当局大量封锁外媒中文网,中国官方媒体垄断了大陆网络资源,中国网民在中文新闻资讯来源上的选择有限。华尔街中文网纽约时报中文网均被防火墙封锁。FT中文网路透社中文网等网站上敏感的内容也被封锁。

随着英文在中国的普及,许多国际新闻的英文网站被封也成为常态。虽然BBC英文网最近短暂遭干扰,但该网站仍未被防火墙完全封锁。

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GreatFire使用“依附的自由”策略解封网站,并借助全球的内容传输网络(CDNs)来存放BBC中文网的镜像。免翻墙的BBC中文网和其他中文资讯网络列在GreatFire.org的Github专页上。

星期二, 11月 18, 2014

HSBC corporate banking blocked in China; in and outbound finance impacted

The censorship authorities in China have blocked access to HSBC’s corporate banking portal, HSBCnet, casting a large shadow over the the ability for both foreign and domestic companies to conduct day-to-day business inside the country.

What happened?

On October 23, 2014 users started to report that they had trouble accessing the online corporate banking service at global behemoth HSBC.

The bank itself was forced to add a note on its website acknowledging a problem:

Important Message: Customers logging in from China

Dear HSBCnet User

Please be advised that HSBCnet Users are currently experiencing problems when attempting to log into the system from within China. We are aware of this issue and are diligently working with local providers to deliver a prompt resolution.

This challenge resides outside the HSBCnet system and activity performed through our online banking platform remains secure.

数千个网站在中国遭“一锅端”

Edgecastcdn.net在中国遭到域名服务器缓存污染攻击,导致其下的所有子域名在中国被封。EdgeCast是全球最大的内容分发网络(CDN),为中国成千上万的网站和app提供云服务。

网络监测组织GreatFire使用“依附的自由”方式为网站解封,其假设便是,中国不会封锁通往全球内容发布网络的连接,因为当局很清楚中国融入全球互联网的价值。但该组织此次宣称,中国当局正试图将中国从全球互联网中孤立出来。

在过去数日内, “依附的自由”技术带来了许多“连带破坏”。GreatFire组织收到一些小网站发来的邮件,这些网站弄不清,为何自己网站的内容并不敏感,却遭到防火墙的封锁。

发生了什么?

据GreatFire称,他们于2014年11月13日监测到对EdgeCast的首个污染攻击。EdgeCast于2014年11月14日在其网站上告示,其服务在中国遭到干扰。并于17日发表相关博客称:

从我们的CDN、业界合作伙伴、和我们的用户处得知,愈来愈多的网站、CDNs和网络遭到中国防火墙过滤和封锁。本周,我们目睹了过滤升级,越来越多的网站遭到影响,甚至我们的一个服务器遭到部分封锁······当局没有提供任何理由。

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该公司称,已推出相应政策和措施,协助用户应付中国此次的封锁,且表示“这是一直持续的问题”。

受影响的网站(皆为EdgeCast用户)包括:

             索尼移动 的全球网站和中国网站均遭到封锁。

《大西洋月刊》The Atlantic

星期二, 10月 28, 2014

苹果、微软信任中国政府来保护你的信息安全

微软、苹果、Mozilla等公司的浏览器都将CNNIC作为系统内置默认可信任的证书(无论用户是在中国还是海外)。CNNIC是中国互联网信息中心,属工信部管理。据报道,CNNIC曾审查网络(并试图隐瞒)、发布恶意软件、安全记录不良。中国的技术型网民多年来一直抵制将CNNIC作为可信任的根证书。中国最近发生了针对谷歌和苹果等产品的中间人攻击,网络监测组织GreatFire.org再次呼吁取消CNNIC作为根证书的资格

星期一, 10月 20, 2014

苹果iCloud在中国遭中间人攻击

中国当局对苹果的云服务iCloud发起中间人攻击(MITM)。此前,有调查显示,中国对Github、谷歌、雅虎和微软都发动了中间人攻击。此次对iCloud的中间人攻击,与此前对谷歌、Github和雅虎的攻击不同。此次对苹果的攻击,是为了盗取用户的登录名和密码,以及储存在iCloud上的所有数据,包括iMessage、照片、联络人等。

星期一, 9月 29, 2014

Wall Street Journal Chinese denies self-censorship

We also know that journalists are under enormous amounts of stress and we respect the fact that both WSJ and Reuters have reporters on the ground, putting themselves in danger to report this story. But why make such an effort if the fruits of that labor become evident more than 24 hours after the event for the audience that deserves to hear this story the most?

路透社中文和华尔街日报中文版自我审查关于香港占中的新闻

路透社中文网和华尔街日报中文网对香港占中抗议只字不提,但其在美国网站的报道确是头条。

星期三, 9月 24, 2014

LinkedIn debacle may come back to haunt the Chinese authorities

As the authorities place even greater restrictions on foreign internet properties who wish to operate in China, they are giving these companies little room to manoeuvre and pushing them to adopt alternative approaches.

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