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Wolf

When dealing with network attacks, using iptables to block IP is a common and simple way. Sometimes it may be necessary to block tens of thousands of IPs, adding tens of thousands of rules will greatly affect the performance of the server. ipset was born to solve this problem.

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Sixteenth of the first month
Because the coronavirus in 2020 has not passed yet, I studied at home to use docker to deploy the subversion server in Kali-linux.

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Sunset

Enterprise network management switches can use commands to physically isolate ports in the same VLAN. The home network management switch can only use one of the port mode and VLAN mode. Google did a bit and successfully used VLAN to realize the function of isolation from ports under VLAN.

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Friend ship

IPv4 addresses have dried up in 2019, so network operators have begun to promote IPv6 and use NAT technology on a large scale to recover public network IPv4 addresses. Without the public network IPv4 address, we cannot use many applications (such as a self-built web server). The solution is to use NAT traversal.

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Snow
I have been using the R7800 for two years, most of the time it belongs to the neglected existence. Occasionally I will be unconscious and suddenly press the reset button to restore the factory settings. As a result, the router’s management page cannot be opened after the router restarts.

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Hands, Can do everything

In the recent period, the academic record of bear children has dropped due to their indulgence in television , so there is a need to restrict television without affecting the elderly at home. After thinking about it, I plan to use the crawler technology automatically login the network management switch to limit the speed of the set-top box when the child is after school . when the children is at school release speed of set-top box.
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Journey
When converting OTF / TTF fonts to WOFF online, many websites limit the size of uploaded fonts (< 10MB), while the size of Chinese fonts is inherently large, so when using online font format conversion, it is often not possible to convert. Then I thought about converting the fonts locally.

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Eagle looks to the sky by @peteevans, UK
某日闲得慌,想把家里内部多个网站升级至HTTPS,每个域名都做一个证书?那后期的维护绝对不是人干的。好在有万能的google,才发现多个域名也可以用一个证书来搞定。

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青 春

19年某月某日朋友询问我能否恢复被他手欠删了的微信聊天记录,我说简单,于是顺手就把朋友的手机接了过来。等我开始动手时,才发现我这个牛皮吹得有多大!

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