scp can copy directory over ssh, but sparse parameter is not supported (unlike cp). To efficiently copy directory with sparse files, use tar and ssh instead. # Copy "images" directory to re...
CentOS
screenrc configuration example
This is an example of .screenrc configuration file. Just for your reference. .screenrc # Bind F11 and F12 (NOT F1 and F2) to previous and next screen window bindkey -k F1 prev bindkey -k F...
Test Peer to Peer Connection Speed with iperf3
Hi! I am writing to explain how to test your network connection between your client (Windows or Linux) and another client (say, a remote server). The tool is iperf version 3. You can find some u...
FreeRadius3 of CentOS7: [sql] = notfound
Problem (0) sql : expand: "%{User-Name}" -> 'demo' (0) sql : SQL-User-Name set to 'demo' rlm_sql (sql): Reserved connection (4) (0) sql : expand: "SELECT id, username, attribute, ...
加速WEB访问：使用DNSmasq与squid代理并过滤广告
简介 DNSmasq是一个小巧且方便地用于配置DNS和DHCP的工具，适用于小型网络，提供了DNS功能和可选择的DHCP功能。通过其DNS缓存的功能，可以大大提高公共网络中的域名解析速度，从而提升网站访问速度。 squid代...
CentOS 7 安装wordpress 权限问题
如果你的wordpress安装目录是wordpress，则通过默认向导配置会出现权限不足的情况： Sorry, but I can’t write the wp-config.php file. You can create the wp-config.php manually and paste the following...