如何架设稳定的vpn服务器呢?

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mnz hz

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May 20, 2015, 1:21:15 PM5/20/15
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在国外服务器架设了l2tp服务器,连接上几分钟后就没法下东西了,可是vpn还是连着的,怎么回事?
是不是设置加密会稳定些?

Liang Guo

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May 20, 2015, 9:34:41 PM5/20/15
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2015-05-21 1:21 GMT+08:00 mnz hz <mnz...@gmail.com>:
> 在国外服务器架设了l2tp服务器,连接上几分钟后就没法下东西了,可是vpn还是连着的,怎么回事?
> 是不是设置加密会稳定些?
>
恐怕是因为GFW干扰吧。试一下ocserv,用下来感觉还比较稳定。


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Xiaoxiao Pu

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May 21, 2015, 6:27:57 AM5/21/15
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可以考虑 ShadowVPN 这种 Stateless VPN

在 2015年5月21日星期四 UTC+8上午1:21:15,mnz hz写道:
在国外服务器架设了l2tp服务器,连接上几分钟后就没法下东西了,可是vpn还是连着的,怎么回事?
是不是设置加密会稳定些?

mnz hz

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May 21, 2015, 7:33:27 PM5/21/15
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ShadowVPN 无法在windows上跑,可惜了

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tib

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May 21, 2015, 11:26:26 PM5/21/15
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可以哦。

http://toby.so/arch/71  参考这个

不过,shadowvpn用起来还是无法很流畅的观看youtube,丢包太厉害。不过也感觉比socks的TCP要好点。



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Xiaoxiao Pu

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May 22, 2015, 1:21:24 PM5/22/15
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不过,shadowvpn用起来还是无法很流畅的观看youtube,丢包太厉害。不过也感觉比socks的TCP要好点。

丢包严重的话可以修改 ShadowVPN 的源码来实现双倍发包(把 src/vpn.c 中调用 sendto 的地方都调用两次),会浪费流量,但确实有效 

Xiaoxiao Pu

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May 22, 2015, 1:32:13 PM5/22/15
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ShadowVPN 无法在windows上跑,可惜了

tib

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May 22, 2015, 8:26:37 PM5/22/15
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这个丢包也许是GFW有意为之。所以我一般在shadowvpn不行时,换个ip差不多。

有一个疑问,想请教下各位大神。
目前来说,这种udp模式,GFW只能看到IP和port,其他都是加密的。是不是意味着GFW不可能完全封禁?因为这都是最基本的协议,如果连这也全部禁掉,真的就是大局域网了。

Shadowsocks使用的tcp+udp,如果我没弄错的话。

2015年5月23日 1:32 AM于 "Xiaoxiao Pu" <king...@gmail.com>写道:
ShadowVPN 无法在windows上跑,可惜了

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Xiaoxiao Pu

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May 23, 2015, 1:11:29 AM5/23/15
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GFW 确实只能看到 IP 和 port,不过加密是不能掩盖流量特征的,仍然有被识别出来的可能。
丢包也不一定是 GFW,本来国内到国际网络就不太稳定,线路影响也比较大。

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tib

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May 23, 2015, 9:04:06 AM5/23/15
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特征的话,勤换密钥和加密算法即可。GFW想要大规模的找到规律并且全部封掉成本蛮高,也蛮难的吧。 :)

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mnz hz

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May 23, 2015, 6:28:39 PM5/23/15
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2015-05-23 1:32 GMT+08:00 Xiaoxiao Pu <king...@gmail.com>:
ShadowVPN 无法在windows上跑,可惜了

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mnz hz

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May 23, 2015, 6:40:15 PM5/23/15
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shadowsocks比shadowvpn要稳定么?

Conner Mo

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May 23, 2015, 11:25:26 PM5/23/15
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 用squid开25端口,只能告诉你这么多了。
Best Regards, 
Conner Mo

Xiaoxiao Pu

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May 24, 2015, 7:17:29 AM5/24/15
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与加密无关,只通过分析包的大小就可以分析流量特征。比如,如果发现一个 UDP session 有明显的 HTTPS/HTTP 的流量特征,就可以发现。要想彻底掩盖特征,需要进行混淆,可以参考这篇论文 http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6778916&tag=1

在 2015年5月23日星期六 UTC+8下午9:04:06,tiger_BB写道:
特征的话,勤换密钥和加密算法即可。GFW想要大规模的找到规律并且全部封掉成本蛮高,也蛮难的吧。 :)

在 2015年5月23日 下午1:11,Xiaoxiao Pu <king...@gmail.com>写道:
GFW 确实只能看到 IP 和 port,不过加密是不能掩盖流量特征的,仍然有被识别出来的可能。
丢包也不一定是 GFW,本来国内到国际网络就不太稳定,线路影响也比较大。

在 2015年5月23日星期六 UTC+8上午8:26:37,tiger_BB写道:

这个丢包也许是GFW有意为之。所以我一般在shadowvpn不行时,换个ip差不多。

有一个疑问,想请教下各位大神。
目前来说,这种udp模式,GFW只能看到IP和port,其他都是加密的。是不是意味着GFW不可能完全封禁?因为这都是最基本的协议,如果连这也全部禁掉,真的就是大局域网了。

Shadowsocks使用的tcp+udp,如果我没弄错的话。

2015年5月23日 1:32 AM于 "Xiaoxiao Pu" <king...@gmail.com>写道:
ShadowVPN 无法在windows上跑,可惜了

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tib

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May 24, 2015, 9:14:55 AM5/24/15
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Good.. 学习一下。。

在 2015年5月24日 下午7:17,Xiaoxiao Pu <king...@gmail.com>写道:
与加密无关,只通过分析包的大小就可以分析流量特征。比如,如果发现一个 UDP session 有明显的 HTTPS/HTTP 的流量特征,就可以发现。要想彻底掩盖特征,需要进行混淆,可以参考这篇论文 http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6778916&tag=1

在 2015年5月23日星期六 UTC+8下午9:04:06,tiger_BB写道:
特征的话,勤换密钥和加密算法即可。GFW想要大规模的找到规律并且全部封掉成本蛮高,也蛮难的吧。 :)

在 2015年5月23日 下午1:11,Xiaoxiao Pu <king...@gmail.com>写道:
GFW 确实只能看到 IP 和 port,不过加密是不能掩盖流量特征的,仍然有被识别出来的可能。
丢包也不一定是 GFW,本来国内到国际网络就不太稳定,线路影响也比较大。

在 2015年5月23日星期六 UTC+8上午8:26:37,tiger_BB写道:

这个丢包也许是GFW有意为之。所以我一般在shadowvpn不行时,换个ip差不多。

有一个疑问,想请教下各位大神。
目前来说,这种udp模式,GFW只能看到IP和port,其他都是加密的。是不是意味着GFW不可能完全封禁?因为这都是最基本的协议,如果连这也全部禁掉,真的就是大局域网了。

Shadowsocks使用的tcp+udp,如果我没弄错的话。

2015年5月23日 1:32 AM于 "Xiaoxiao Pu" <king...@gmail.com>写道:
ShadowVPN 无法在windows上跑,可惜了

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Benjamin

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May 24, 2015, 9:00:31 PM5/24/15
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用OpenVPN 架设的,用了一年多了都挺稳定的。

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Shell Xu

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May 24, 2015, 10:36:57 PM5/24/15
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我将多个链路封装在一个tcp链路里来进行混淆。。。

在 2015年5月24日 下午7:17,Xiaoxiao Pu <king...@gmail.com>写道:
与加密无关,只通过分析包的大小就可以分析流量特征。比如,如果发现一个 UDP session 有明显的 HTTPS/HTTP 的流量特征,就可以发现。要想彻底掩盖特征,需要进行混淆,可以参考这篇论文 http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6778916&tag=1

在 2015年5月23日星期六 UTC+8下午9:04:06,tiger_BB写道:
特征的话,勤换密钥和加密算法即可。GFW想要大规模的找到规律并且全部封掉成本蛮高,也蛮难的吧。 :)

在 2015年5月23日 下午1:11,Xiaoxiao Pu <king...@gmail.com>写道:
GFW 确实只能看到 IP 和 port,不过加密是不能掩盖流量特征的,仍然有被识别出来的可能。
丢包也不一定是 GFW,本来国内到国际网络就不太稳定,线路影响也比较大。

在 2015年5月23日星期六 UTC+8上午8:26:37,tiger_BB写道:

这个丢包也许是GFW有意为之。所以我一般在shadowvpn不行时,换个ip差不多。

有一个疑问,想请教下各位大神。
目前来说,这种udp模式,GFW只能看到IP和port,其他都是加密的。是不是意味着GFW不可能完全封禁?因为这都是最基本的协议,如果连这也全部禁掉,真的就是大局域网了。

Shadowsocks使用的tcp+udp,如果我没弄错的话。

2015年5月23日 1:32 AM于 "Xiaoxiao Pu" <king...@gmail.com>写道:
ShadowVPN 无法在windows上跑,可惜了

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Shell Xu

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May 24, 2015, 10:37:40 PM5/24/15
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找所有不认识的协议,一个点到几个点,上行流量小而下行流量大的。。。

Yongwei Wu

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May 25, 2015, 1:28:18 AM5/25/15
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应该用类似的方法,加上协议识别。去年上半年我主要用一家OpenVPN,首先是很难连得上,即使连上速度也让人发疯。GFW可能采取一些丢包的策略,不过这样足以把我玩残了,至少YouTube没法看了。

感觉最近管制有点放松了。可能是这种策略误报率有点高吧。纯属猜测。
Wu Yongwei
URL: http://wyw.dcweb.cn/

Shell Xu

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May 25, 2015, 7:58:54 AM5/25/15
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openvpn是因为他是基于openssl的,哪怕是udp模式。因此他的协议特征很明显。你可以观察到,未经混淆的openvpn死的非常快,经过混淆后就慢很多。因为通过协议特征统计是非常消耗资源的,而且收敛情况很差。没有足够多的数据很难精确找到。

Jian Wen

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May 26, 2015, 10:17:57 PM5/26/15
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我以前的OpenVPN服务器用的是TCP协议,然后跑在SSH隧道里。
看YouTube挺爽。

RackSpace免费两年的促销到期后,切到Google 香港的虚拟机。
RTT提高了3~4倍。

推荐有钱的老板用RackSpace香港的虚拟机。
我上面跑了一两年的Squid, SSH, OpenVPN服务。
只要GFW不抽风,速度不错。北京访问的RTT在 70 ms 左右吧
Best,

Jian

宋为

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May 30, 2015, 11:08:05 AM5/30/15
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如此看来,应该和国外的朋友沟通,各买一个服务器,中间架上管道,他进来,你
出去,这样一来流量特征就和谐了。

在 2015年05月25日 10:36, Shell Xu 写道:
> 找所有不认识的协议,一个点到几个点,上行流量小而下行流量大的。。。
>
> 在 2015年5月23日 下午9:04,tib <liu.xia...@gmail.com
> <mailto:liu.xia...@gmail.com>>写道:
>
> 特征的话,勤换密钥和加密算法即可。GFW想要大规模的找到规律并且全部封
> 掉成本蛮高,也蛮难的吧。 :)
>
> 在 2015年5月23日 下午1:11,Xiaoxiao Pu <king...@gmail.com
> <mailto:king...@gmail.com>>写道:
> <mailto:sh...@googlegroups.com>. To unsubscribe from this group,
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Zoom.Quiet

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May 30, 2015, 11:10:45 AM5/30/15
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嗯啍?! 流量只有上下行,无分内外的哪
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mnz hz

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Chaos Eternal

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May 30, 2015, 11:12:38 PM5/30/15
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you are not prepared!

反正我是不愿意再去尝试了

mnz hz

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May 31, 2015, 4:10:39 AM5/31/15
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not prepared , 啥意思?

Chaos Eternal

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May 31, 2015, 4:27:41 AM5/31/15
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google一下吧。。

benluo

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On 2015/5/25 10:36, Shell Xu wrote:
我将多个链路封装在一个tcp链路里来进行混淆。。。

在 2015年5月24日 下午7:17,Xiaoxiao Pu <king...@gmail.com>写 道:
与加密无关,只通过分析包的大小就可以分析流量特征。比如,如果发现一个 UDP session 有明显的 HTTPS/HTTP 的流量特征,就可以发现。要想彻底掩盖特征,需要进行混淆,可以参考这篇论文 http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6778916&tag=1

在 2015年5月23日星期六 UTC+8下午9:04:06,tiger_BB写道:
特征的话,勤换密钥和加密算法即可。GFW想要大规模的找到规律并且全部封掉成本蛮高, 也蛮难的吧。 :)

在 2015年5月23日 下午1:11,Xiaoxiao Pu <king...@gmail.com>写 道:
GFW 确实只能看到 IP 和 port,不过加密是不能掩盖流量特征的,仍然有被识别出来的可能。
丢包也不一定是 GFW,本来国内到国际网络就不太稳定,线路影响也比较大。

在 2015年5月23日星期六 UTC+8上午8:26:37,tiger_BB写道:

这个丢包也许是GFW有意为之。所以我一般在 shadowvpn不行时,换个ip差不多。

有一个疑问,想请教下各位大神。
目前来说,这种udp模式,GFW只能看到IP和port,其他都是加密的。是不 是意味着GFW不可能完全封禁?因为这都是最基本的协议,如果连这也全部禁掉,真 的就是大局域网了。

Shadowsocks使用的tcp+udp,如果我没弄 错的话。

2015年5月23日 1:32 AM于 "Xiaoxiao Pu" <king...@gmail.com> 写道:
ShadowVPN 无法在windows上跑,可惜了
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Alpha Cheng

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Dec 29, 2015, 10:10:22 AM12/29/15
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听说 Azure 中国区到 Azure 国际版之间的链接是没有审查的,不知道是真的假的?

我试着用 Plain L2TP 连了一下 Azure CN <=> Azure Japan,感觉丢包好生严重,不知道是不是我设置的问题。如果链接真的是无审查的,那么这倒是个好思路,我反正是搞了好几天没有搞定,客户端连接 Azure CN 用的 IKEv2,不知道是什么原因没有办法路由到 Azure CN 往返日本 L2TP 的 ppp0 上面。

Regards.

Afa.L Cheng

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Yang Fan

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Dec 29, 2015, 8:33:09 PM12/29/15
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前两天才听人说,Azure中国到国际的线路看人品,因为坐落cluster的缘故,人品不好掉包60%,只能删掉实例重建,直到试到一个好的。
无墙专线应该是真的,但也没逆天到哪里去,从上海电信连Azure上海的使用情况看,latency并不稳定,和其他直接国外的线路比,要么好到第一名(多数时候),要么差到倒数第一名(也不少见)。
然后,你Azure中国<=>Azure日本为什么不用haproxy之类直接TCP转发呢?
Regards,
Fan Yang

Alpha Cheng

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Dec 30, 2015, 4:58:04 AM12/30/15
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刚发现 Azure Japan West 的 IKEv2 速度很好也很稳定,延迟在80-100左右,如此连 Azure 上海的跳板也不需要了

kelx

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Dec 30, 2015, 5:06:16 AM12/30/15
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1. 如果只是想访问LAN side 某一个PC, 可以用DMZ.
iptables -t nat -A PREROUTING -i WAN_interface -j DNAT --to-destination LANIP.
iptables -I FORWARD -d LANIP -j ACCEPT

你查查DMZ 或者 DNAT, 能够得到更多的info.
然后你访问第二个route的WAN,  它就自动转到LAN 上了。


2. 如果想放问所有的LAN-PC.
那只能把路由器配成switch.


------------------ 原始邮件 ------------------
发件人: "Alpha Cheng";<hmast...@gmail.com>;
发送时间: 2015年12月30日(星期三) 下午5:57
主题: Re: [shlug] Re: 如何架设稳定的vpn服务器呢?

kelx

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Dec 30, 2015, 5:09:27 AM12/30/15
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Hi All,
不好意思,发错topic 了。



------------------ 原始邮件 ------------------
发送时间: 2015年12月30日(星期三) 晚上6:06
主题: 回复: [shlug] Re: 如何架设稳定的vpn服务器呢?

Gelisp Anony

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Jan 1, 2016, 1:59:13 AM1/1/16
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OpenVPN的协议基本过不了GFW。我在EC2架了Shadowsocks,目前的体会是上海电信除了早上时段,其它时段访问国外IP都有问题。用移动4G目前看非常流畅。

brooklynb7

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Jan 1, 2016, 2:20:46 AM1/1/16
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EC2东京节点速度还可以,用了一阵感觉价格略贵,现在换到digital ocean的新加坡节点,速度可以

Gelisp Anony

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Jan 1, 2016, 2:22:59 AM1/1/16
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用电信?全体速度都OK?

Gelisp Anony

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Jan 1, 2016, 2:24:48 AM1/1/16
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为了用GOOGLE服务,还是得选美国IP。这个比较尴尬

brooklynb7

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Jan 1, 2016, 2:25:38 AM1/1/16
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OK,家里宽带是电信的fttb+LAN, 随身用的联通3g,都很流畅

Gelisp Anony

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Jan 4, 2016, 3:24:02 AM1/4/16
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申请了Digital Ocean的,比EC2便宜好多。

brooklynb7

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Jan 4, 2016, 5:33:23 AM1/4/16
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其实搬瓦工更便宜,只用来做ss的话,之前有低配的机器,大概256内存的,一年5刀,现在都没了

Qf Yang

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Jan 4, 2016, 5:36:05 AM1/4/16
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123systems,1年9刀,运气好的话还能找到5折优惠码。跑ss基本够用了


brooklynb7 <brook...@gmail.com>于2016年1月4日周一 下午6:33写道:

Gelisp Anony

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Jan 4, 2016, 6:25:04 AM1/4/16
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一年几刀的估计就是卖流量了,EC2服务太多了。

albe...@redundancy-dns.com

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Jan 4, 2016, 8:33:26 AM1/4/16
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电信小用户出口太拥挤了。
可以在国内的公有云上面做台机器转跳一下速度就快了。

 
发件人: Gelisp Anony
发送时间: 2016-01-04 19:25
主题: Re: [shlug] 如何架设稳定的vpn服务器呢?

tib

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Jan 4, 2016, 9:29:53 PM1/4/16
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求共享一个跳转机。。

我的版瓦工,现在youtube只有100K左右,好忧伤,看不了720.。

我可以分享出来流量,每个月100G根本用不完。。
人生就像蜡烛一样,从顶燃到底,都应该是光明的。

Terry Zheng

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Jan 6, 2016, 9:25:05 PM1/6/16
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HOSTDB24 也有 OpenVZ 的虚拟机,价格和搬瓦工类似。https://clients.hostbd24.com/cart.php?a=confproduct&i=0
我用的也是搬瓦工,5G PROMO V2 跑 Shadowsocks-libev,长宽直连偶尔还能用用,电信每次都是分分钟丢包丢到不能用,目前是通过一台国内的云主机用 HAProxy 做中转,最近也不知道啥原因,经常卡成翔。

我的问题是有没有给企业提供 VPN 的服务商,主要目的还是翻墙,有用过给推荐一下,先行谢过!

在 2016年1月4日星期一 UTC+8下午6:33:23,Brooklyn Huang写道:

其实搬瓦工更便宜,只用来做ss的话,之前有低配的机器,大概256内存的,一年5刀,现在都没了

2016年1月4日 16:24,"Gelisp Anony" <gel...@gmail.com>写道:
申请了Digital Ocean的,比EC2便宜好多。

2016-01-01 15:25 GMT+08:00 brooklynb7 <brook...@gmail.com>:

OK,家里宽带是电信的fttb+LAN, 随身用的联通3g,都很流畅

2016年1月1日 15:22,"Gelisp Anony" <gel...@gmail.com>写道:
用电信?全体速度都OK?

2016-01-01 15:20 GMT+08:00 brooklynb7 <brook...@gmail.com>:

EC2东京节点速度还可以,用了一阵感觉价格略贵,现在换到digital ocean的新加坡节点,速度可以

2016年1月1日 14:59,"Gelisp Anony" <gel...@gmail.com>写道:
OpenVPN的协议基本过不了GFW。我在EC2架了Shadowsocks,目前的体会是上海电信除了早上时段,其它时段访问国外IP都有问题。用移动4G目前看非常流畅。
2015-12-30 18:09 GMT+08:00 kelx <kelx...@gmail.com>:
Hi All,
不好意思,发错topic 了。



------------------ 原始邮件 ------------------
我将多个链路封装在一个tcp链路里来进行混淆。。。

特征的话,勤换密钥和加密算法即可。GFW想要大规模的找到规律并且全部封掉成本蛮高, 也蛮难的吧。 :)

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Gelisp Anony

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Jan 7, 2016, 1:36:44 AM1/7/16
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VPN一直会是重点看护对象,今天稳定的,明天就难说了。

2016-01-07 10:25 GMT+08:00 Terry Zheng <jfh...@gmail.com>:
HOSTDB24 也有 OpenVZ 的虚拟机,价格和搬瓦工类似。https://clients.hostbd24.com/cart.php?a=confproduct&i=0
我用的也是搬瓦工,5G PROMO V2 跑 Shadowsocks-libev,长宽直连偶尔还能用用,电信每次都是分分钟丢包丢到不能用,目前是通过一台国内的云主机用 HAProxy 做中转,最近也不知道啥原因,经常卡成翔。

我的问题是有没有给企业提供 VPN 的服务商,主要目的还是翻墙,有用过给推荐一下,先行谢过!

在 2016年1月4日星期一 UTC+8下午6:33:23,Brooklyn Huang写道:

其实搬瓦工更便宜,只用来做ss的话,之前有低配的机器,大概256内存的,一年5刀,现在都没了

2016年1月4日 16:24,"Gelisp Anony" <gel...@gmail.com>写道:
申请了Digital Ocean的,比EC2便宜好多。

2016-01-01 15:25 GMT+08:00 brooklynb7 <brook...@gmail.com>:

OK,家里宽带是电信的fttb+LAN, 随身用的联通3g,都很流畅

2016年1月1日 15:22,"Gelisp Anony" <gel...@gmail.com>写道:
用电信?全体速度都OK?

2016-01-01 15:20 GMT+08:00 brooklynb7 <brook...@gmail.com>:

EC2东京节点速度还可以,用了一阵感觉价格略贵,现在换到digital ocean的新加坡节点,速度可以

2016年1月1日 14:59,"Gelisp Anony" <gel...@gmail.com>写道:
OpenVPN的协议基本过不了GFW。我在EC2架了Shadowsocks,目前的体会是上海电信除了早上时段,其它时段访问国外IP都有问题。用移动4G目前看非常流畅。
2015-12-30 18:09 GMT+08:00 kelx <kelx...@gmail.com>:
Hi All,
不好意思,发错topic 了。



------------------ 原始邮件 ------------------
我将多个链路封装在一个tcp链路里来进行混淆。。。

特征的话,勤换密钥和加密算法即可。GFW想要大规模的找到规律并且全部封掉成本蛮高, 也蛮难的吧。 :)

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人 生就像蜡烛一样,从顶燃到底,都应该是光明的。
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blog: http://shell909090.org/blog/
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