wireshark 显示语法
data.len==16 and data.data[0-3]==c0:a8:06:fb
wireshark 根据数据内容显示过滤示例效果图：
查找 wireshark data.data filter
可以在官网上看到关于data display 的 filter
https://www.wireshark.org/docs/dfref/d/data.html
对于太长的数据，可以使用 data.md5_hash 来判断是否是指定内容的数据。不过一般来说，长度和指定数据部分内容就能够区分了。
tcp.stream eq 0 and frame contains "\x7e\xff"
查找tcp包里面是否包含某个字符串,使用frame contains 就可以了.
获取当前Url的4种方法
var url = window.location.href;
var url = self.location.href;
var url = document.URL;
var url = document.location;
JS基础篇-- body.scrollTop与documentElement.scrollTop - SegmentFault 思否
Chrome： 谷歌浏览器只认识document.body.scrollTop;
Certificate error while pushing no… | Apple Developer Forums
We did a temporary fix by setting lower SSL security level.
In particular, the openSSL configuration file /etc/ssl/openssl.cnf shall be modified in the following way.
At the beginning, add openssl_conf = default_conf
At the end, add
Code Block
[ default_conf ]
ssl_conf = ssl_sect
[ssl_sect]
system_default = ssl_default_sect
[ssl_default_sect]
MinProtocol = TLSv1.2
CipherString = DEFAULT:@SECLEVEL=0
After this modification, the certificate is recognized without security errors.
Referenced from: itectec.com/ubuntu/ubuntu-certificate-error-after-upgrade-to-20-04
c++ - std::string formatting like sprintf
最简单的方法就是用c语言的。
char buff[100];
snprintf(buff, sizeof(buff), "%s", "Hello");
std::string buffAsStdStr = buff;
Referenced from:https://stackoverflow.com/questions/2342162/stdstring-formatting-like-sprintf