Recently i got my vps corrupted and restored it from a snap shot. Unfortunately, the snap shot doesn't contain my previous https certificate and ssl certificate key. So i have to reissue all the stuff. Below is the steps about … Read the rest
最近晚上要整理整理博客， 发现博客经常无法打开。 查看 vps 进程发现 php5-fpm 进程占用了 CPU 的大部分时间，于是去网上搜了一圈，改了改配置文件，现在 CPU 使用率基本在 20% 以下，各服务都算正常，顺手做一个总结。
/var/log/php5-fpm.log 文件，判断大概是什么问题。我的日志当时一直报这个 warning:
WARNING: [pool www] seems busy (you may need to increase pm.start_servers, or pm.min/max_spare_servers), spawning 32 children, there are 0 idle, and 10 total unix 下的 mkdir 函数只能在一个已经存在的目录下创建一个子目录，而常见的情况是创建一个多级目录，就像 shell 中的 mkdir -p 一样。看过工作中的不少实现，感觉不够简洁和清晰，于是找到了这个实现(链接：sharp2wing)，应该可以了。
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/stat.h>
#define RWXRR (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IROTH)
int make_path(const char *path, mode_t mode)
{
char considering the following code:
class Test
{
int num;
public:
Test(int x):num(x){}
Test(const Test &rhs):num(rhs.num+1){}
};
int main()
{
Test test(10);
Test copy = test;
}
The num in the copy should be 11, and my question is about inside … Read the rest
最近git push一直提示文件太大，无法push，想到应该是自己之前不小心git add *把可执行文件什么的也加入跟踪列表了，于是就想把它们从历史commits中删除，步骤总结如下：
git log --statgit filter-branch --tree-filter 'rm -f non_code_files' HEADgit filter-branch -f --tree-filter 'rm -f non_code_files_left' HEADgit push -fAs a serious terminal user, i have to use 'ls' command thousands of times.
Coloful output of 'ls' is a must. Thus i installed gnu coreutils, which can provide custom schemes for showing directoies and files.(this is a guide … Read the rest
对于在自己购买的vps上搭建wordpress博客的用户而言，需要先手动搭建wordpress安装环境，然后按照wordpress官网教程安装wordpress。本文将介绍在vultr的vps上搭建wordpress安装环境的步骤。主要参考了vultr documentation 和 wordpress documentation。
root@localhost:~# apt-get install python-software-properties
root@localhost:~# add-apt-repository -y ppa:rtcamp/nginx
root@localhost:~# apt-get update
root@localhost:~# apt-get install nginx
root@localhost:~# service nginx start
Test if the