nginx client intended to send too large body技术
nginx 出现了报错日志，咋一看，就是 POST 了大数据，只能修改配置了，怎么设置，请看：
报错类似：
2021/05/08 12:16:13 [error] 11798#11798: *28202901 client intended to send too large body: 1268248 bytes, client: , server: , request: "POST HTTP/1.1", host: ""
解决办法：
http {
...
client_max_body_size 5m;
}更换服务器后，出现了久违的错误，因为我配置的是域名。
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: POSSIBLE DNS SPOOFING DETECTED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ The ECDSA host key for [lmlphp.com]:has changed, and the key for the corresponding IP address [192.46.218.18]: is unknown. This could either mean that DNS SPOOFING is happening or the IP address for the host and its host key have changed at the same time. @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)! It is also possible that a host key has just been changed. The fingerprint for the ECDSA key sent by the remote host is SHA256:t8bG23KQlimQ5MvG5rea0eKq1Jps8W8lOpaoi0AVyro. Please contact your system administrator. Add correct host key in /root/.ssh/known_hosts to get rid of this message. Offending ECDSA key in /root/.ssh/known_hosts:1 remove with: ssh-keygen -f "/root/.ssh/known_hosts" -R "[lmlphp.com]:" ECDSA host key for [lmlphp.com]:has changed and you have requested strict checking. Host key verification failed. rsync: connection unexpectedly closed (0 bytes received so far) [Receiver] rsync error: unexplained error (code 255) at io.c(235) [Receiver=3.1.3]
突发，写了一段测试电脑速度的代码技术
突发奇想，想试试电脑循环一个 INT MAX 需要多久，发现可以测量下电脑的速度，一举两得！
为什么会这么想呢，因为我总是担心 MySQL 自增超出了怎么办，如何自动的避免这些带来的报错！
测试下 INT_MAX 循环下来耗时多久吧，我比较担心自动增长是不是有问题的设计，如果达到了最大值怎么办？这样程序崩溃了啊，对于频繁增删的表来讲，达到这个最大值不需要多久。
test.php 文件内容：
for ($i=0; $i<2147483647; $i++) {
if ($i==2147483646) {
var_dump('ok');
}
}
普通人终于比首富更厉害一些了院内
首富都离婚了，离婚和财富是没有太大关系了！盖茨离了，姐夫离了！
盖茨离婚事件，被媒体争锋推送。
有钱人一定很幸福吧，至少烦恼会少很多，但是面对感情，也依然是有烦恼啊！
为什么父母会变成扶不起的阿斗院内
这是一个国内的普遍性现象，很多人越来越疏远父母，但都是无奈啊。
很多时候，谁不想爱父母啊！
可很多时候，父母有事不问子女，遇到问题不咨询子女，不信任子女。
这才让很多地推骗子下乡高价卖劣质商品。
很多时候，很残酷，你告诉父母，这个不好，这样不对，要怎么怎么样才是对的。但父母不信你啊，崽子是我生的，崽子还能有我聪明，这就是典型的父母思维。但是子女由于忙，由于各种事情和压力，怎么可能有骗子那么有耐心和嘴脸。
于是骗子随便做几个实验，在乡下召集一推人，卖东西的同时送一点劣质商品，很多老人都中招了，连忙叫好，都买了，这就是真实的中国，你若是告诉你的父母买到了假货，人家还要和你理论一番。
最近几年的高价劣质商品，净水器、亦或是空气净化器等。骗子净水器公司全国巡演，导致高价劣质（甚至完全是假的）净水器进入了寻常老百姓家里，那滤芯拿出来一看就是纸筒子啊！！！
Raspberry Pi 偶尔的网络问题公告
树莓派大概每两个多月的样子就会出现一些问题，连不上网，这个偶尔发生的问题，不知道深层次的原因是什么，因为没法联网，该报警的都报警了！
https://andreas.scherbaum.la/blog/archives/1001-Reboot-the-Raspberry-Pi-on-network-failures-brcmfmac-brcmf_cfg80211_scan-scan-error-110.html
May 1 03:20:34 raspberrypi kernel: [1996808.530881] ieee80211 phy0: brcmf_run_escan: error (-110) May 1 03:20:34 raspberrypi kernel: [1996808.530896] ieee80211 phy0: brcmf_cfg80211_scan: scan error (-110) May 1 03:21:34 raspberrypi kernel: [1996868.434696] brcmfmac: brcmf_sdio_bus_rxctl: resumed on timeout May 1 03:21:34 raspberrypi kernel: [1996868.435178] brcmfmac: brcmf_sdio_checkdied: firmware trap in dongle May 1 03:21:34 raspberrypi kernel: [1996868.435431] brcmfmac: dongle trap info: type 0x4 @ epc 0x0007a094 May 1 03:21:34 raspberrypi kernel: [1996868.435431] cpsr 0x6000019f spsr 0x600001bf sp 0x0025f888 May 1 03:21:34 raspberrypi kernel: [1996868.435431] lr 0x0007a093 pc 0x0007a094 offset 0x25f830 May 1 03:21:34 raspberrypi kernel: [1996868.435431] r0 0x00000037 r1 0x00000005 r2 0x00000000 r3 0x00000001 May 1 03:21:34 raspberrypi kernel: [1996868.435431] r4 0x002494d0 r5 0x00000000 r6 0x00249460 r7 0x00000004 May 1 03:21:34 raspberrypi kernel: [1996868.435454] ieee80211 phy0: brcmf_run_escan: error (-110) May 1 03:21:34 raspberrypi kernel: [1996868.435470] ieee80211 phy0: brcmf_cfg80211_scan: scan error (-110) May 1 03:22:34 raspberrypi kernel: [1996928.339272] ieee80211 phy0: brcmf_run_escan: error (-110) May 1 03:22:34 raspberrypi kernel: [1996928.339296] ieee80211 phy0: brcmf_cfg80211_scan: scan error (-110) May 1 03:23:34 raspberrypi kernel: [1996988.499861] ieee80211 phy0: brcmf_run_escan: error (-110) May 1 03:23:34 raspberrypi kernel: [1996988.499882] ieee80211 phy0: brcmf_cfg80211_scan: scan error (-110) May 1 03:23:37 raspberrypi kernel: [1996991.061905] CIFS VFS: \\192.168.31.103 has not responded in 180 seconds. Reconnecting... May 1 03:24:34 raspberrypi kernel: [1997048.404442] ieee80211 phy0: brcmf_run_escan: error (-110) May 1 03:24:34 raspberrypi kernel: [1997048.404465] ieee80211 phy0: brcmf_cfg80211_scan: scan error (-110) May 1 03:25:34 raspberrypi kernel: [1997108.309023] ieee80211 phy0: brcmf_run_escan: error (-110) May 1 03:25:34 raspberrypi kernel: [1997108.309044] ieee80211 phy0: brcmf_cfg80211_scan: scan error (-110) May 1 03:26:34 raspberrypi kernel: [1997168.469616] ieee80211 phy0: brcmf_run_escan: error (-110) May 1 03:26:34 raspberrypi kernel: [1997168.469636] ieee80211 phy0: brcmf_cfg80211_scan: scan error (-110) May 1 03:27:34 raspberrypi kernel: [1997228.374194] ieee80211 phy0: brcmf_run_escan: error (-110) May 1 03:27:34 raspberrypi kernel: [1997228.374214] ieee80211 phy0: brcmf_cfg80211_scan: scan error (-110) May 1 03:28:34 raspberrypi kernel: [1997288.534795] ieee80211 phy0: brcmf_run_escan: error (-110) May 1 03:28:34 raspberrypi kernel: [1997288.534816] ieee80211 phy0: brcmf_cfg80211_scan: scan error (-110) May 1 03:29:34 raspberrypi kernel: [1997348.439387] ieee80211 phy0: brcmf_run_escan: error (-110) May 1 03:29:34 raspberrypi kernel: [1997348.439408] ieee80211 phy0: brcmf_cfg80211_scan: scan error (-110) May 1 03:30:01 raspberrypi CRON[24311]: (pi) CMD (php /script.php) May 1 03:30:34 raspberrypi kernel: [1997408.343978] ieee80211 phy0: brcmf_run_escan: error (-110) May 1 03:30:34 raspberrypi kernel: [1997408.343999] ieee80211 phy0: brcmf_cfg80211_scan: scan error (-110) May 1 03:30:52 raspberrypi CRON[24307]: (CRON) info (No MTA installed, discarding output) May 1 03:31:34 raspberrypi kernel: [1997468.504589] ieee80211 phy0: brcmf_run_escan: error (-110) May 1 03:31:34 raspberrypi kernel: [1997468.504609] ieee80211 phy0: brcmf_cfg80211_scan: scan error (-110) May 1 03:32:34 raspberrypi kernel: [1997528.409178] ieee80211 phy0: brcmf_run_escan: error (-110) May 1 03:32:34 raspberrypi kernel: [1997528.409199] ieee80211 phy0: brcmf_cfg80211_scan: scan error (-110) May 1 03:33:34 raspberrypi kernel: [1997588.313804] ieee80211 phy0: brcmf_run_escan: error (-110) May 1 03:33:34 raspberrypi kernel: [1997588.313826] ieee80211 phy0: brcmf_cfg80211_scan: scan error (-110) May 1 03:34:34 raspberrypi kernel: [1997648.474380] ieee80211 phy0: brcmf_run_escan: error (-110) May 1 03:34:34 raspberrypi kernel: [1997648.474401] ieee80211 phy0: brcmf_cfg80211_scan: scan error (-110)