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Linux Glibc幽灵漏洞允许黑客远程获取系统权 - 操作系统(内核) - 清泛网 - ...
...yname_r(name,&resbuf, temp.buffer, sizeof(temp.buffer), &result, &herrno); if (strcmp(temp.canary, CANARY) !=0) { puts("vulnerable"); exit(EXIT_SUCCESS); } if (retval == ERANGE) { puts("notvulnerable"); exit(EXIT_SUCCESS); } puts("should nothappen"); exit(EXIT_FAILURE); } EOF [test] $ gcc GHOST.c -o...
MySQL和MongoDB设计实例进行对比 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...很大，所以还需要一个参数表来单独保存。
CREATE TABLE IF NOT EXISTS `mobiles` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`name` VARCHAR(100) NOT NULL,
`brand` VARCHAR(100) NOT NULL,
PRIMARY KEY (`id`)
);
CREATE TABLE IF NOT EXISTS `mobile_params` (
...
MongoDB.Driver.MongoConnectionException: Unable to connect to the prim...
...I create a new connection.When I try to connect,the exception happened.
If slaveOk of this connection setting is true.
Stack:
MongoDB.Driver.MongoConnectionException: Unable to connect to any slaveOk
member of the replica set: Too many threads are already waiting for a
connection.. ---> Mon...
推荐引擎easyrec半天学习分享 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...var json = eval(transport);
var items = json.recommendeditems.item;
if( "undefined" == typeof(items.length) ) {
items = new Array(items);
}
if (items.length>0) {
$("#recommendation").html("<div class='headline'>Other users also viewed...</div>");
for (x=0;x<5 && x <items.le...
Python Charts库(Highcharts API的封装) - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...入目录下的chart目录,拷贝下图这些文件替换
1.If you want to plot a single series, you can use the name argument:
charts.plot(data, name='My list')
show = 'inline',如果没有这个选项,会开启一个网页展示图表
2.If you want to plot multiple serie...
PHPCMS V9不能上传图片的原因与解决方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...stem','up_path'));
3、修改/phpcms/libs/classes/form.class.php，将
if($allowupload) $str .= "filebrowserUploadUrl : '".APP_PATH."index.php?m=attachment&c=attachments&a=upload&module=".$module."&catid=".$catid."&d
改为：
if($allowupload) $str .= "filebrowserUploadUrl : '".UP_PATH."inde...
今天开始应该使用 5 个JavaScript调试技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...中加入强制断点。
需要断点条件吗？只需将它包装它在IF子句中：
if (somethingHappens) {
debugger;
}
只需记住在上线前移除。
2. 当节点变化时断开
有时DOM像有了自己的想法。当不可思议的变化发生时很难找到问题的根源。
...
闲扯Nginx的accept_mutex配置 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...() and select(), this is called thundering herd problem. This is a problem if you have a lot of workers as in Apache (hundreds and more), but this insensible if you have just several workers as nginx usually has. Therefore turning accept_mutex off is as scheduling incoming connection by OS via selec...
Linux日志切分工具：Logrotate - 更多技术 - 清泛网 - 专注C/C++及内核技术
...：
#!/bin/sh
/usr/sbin/logrotate /etc/logrotate.conf
EXITVALUE=$?
if [ $EXITVALUE != 0 ]; then
/usr/bin/logger -t logrotate "ALERT exited abnormally with [$EXITVALUE]"
fi
exit 0
实际运行时，Logrotate会调用配置文件「/etc/logrotate.conf」：
# see "man logrotate" for...
PHP中的错误处理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...：ob_start + error_get_last
<?php
ob_start(function($buffer) {
if ($error = error_get_last()) {
return var_export($error, true);
}
return $buffer;
});
// Fatal error: Call to undefined function undefined_function()
undefined_function();
?>
第二种：regist...