sudo nano /etc/apt/sources.list
#中科大
deb http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib
deb-src http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib
#aliyun
deb http://mirrors.aliyun.com/kali kali-rolling main non-free contrib
deb-src http://mirrors.aliyun.com/kali kali-rolling main non-free contrib
#清华
deb http://mirrors.tuna.tsinghua.edu.cn/kali kali-rolling main contrib non-free
deb-src https://mirrors.tuna.tsinghua.edu.cn/kali kali-rolling main contrib non-free
sudo nano /etc/apt/sources.list
deb http://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/ buster main contrib non-free rpi
deb-src http://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/ buster main contrib non-free rpi
完成源的更新软件包索引
sudo apt-get update
接着更新系统源
sudo nano /etc/apt/sources.list.d/raspi.list
deb http://mirrors.tuna.tsinghua.edu.cn/raspberrypi/ buster main ui
deb-src http://mirrors.tuna.tsinghua.edu.cn/raspberrypi/ buster main ui
import os
# Return CPU temperature as a character string
def getCPUtemperature():
res = os.popen('vcgencmd measure_temp').readline()
return(res.replace("temp=","").replace("'C\n",""))
# Return RAM information (unit=kb) in a list
# Index 0: total RAM
# Index 1: used RAM
# Index 2: free RAM
def getRAMinfo():
p = os.popen('free')
i = 0
while 1:
i = i + 1
line = p.readline()
if i==2:
return(line.split()[1:4])
# Return % of CPU used by user as a character string
def getCPUuse():
return(str(os.popen("top -n1 | awk '/Cpu\(s\):/ {print $2}'").readline().strip()))
# Return information about disk space as a list (unit included) # Index 0: total disk space # Index 1: used disk space # Index 2: remaining disk space # Index 3: percentage of disk used def getDiskSpace():
p = os.popen("df -h /")
i = 0
while 1:
i = i +1
line = p.readline()
if i==2:
return(line.split()[1:5])
# CPU informatiom
CPU_temp = getCPUtemperature()
CPU_usage = getCPUuse()
# RAM information
# Output is in kb, here I convert it in Mb for readability
RAM_stats = getRAMinfo()
RAM_total = round(int(RAM_stats[0]) / 1000,1)
RAM_used = round(int(RAM_stats[1]) / 1000,1)
RAM_free = round(int(RAM_stats[2]) / 1000,1)
# Disk information
DISK_stats = getDiskSpace()
DISK_total = DISK_stats[0]
DISK_used = DISK_stats[1]
DISK_perc = DISK_stats[3]
if __name__ == '__main__':
print('')
print('CPU Temperature = '+CPU_temp)
print('CPU Use = '+CPU_usage)
print('')
print('RAM Total = '+str(RAM_total)+' MB')
print('RAM Used = '+str(RAM_used)+' MB')
print('RAM Free = '+str(RAM_free)+' MB')
print('')
print('DISK Total Space = '+str(DISK_total)+'B')
print('DISK Used Space = '+str(DISK_used)+'B')
print('DISK Used Percentage = '+str(DISK_perc))
MariaDB [(none)]> use mysql;
MariaDB [mysql]> UPDATE mysql.user SET password = PASSWORD('xzlxr@mysql') WHERE user = 'root';
MariaDB [mysql]> UPDATE user SET plugin='mysql_native_password' WHERE user = 'root';
MariaDB [mysql]> FLUSH PRIVILEGES; #刷新权限相关表格
可以 可以 周围有 视频网站关灯的效果 嘿嘿嘿
很棒,这样的话相当于把服务器放在自己家里了。
不过访问速度怎么保证呢?用了CDN吗?
老实说,我现在还没有使用CDN,访问速度应该是由你购买的VPS的网络速度和树莓派的网络环境共同决定。
为了维持正常的访问速度的问题,某种程度上,也就如何减少图片加载图片的时间。解决方案的话,我利用图床上的图片,而不是WORDPRESS上的图片,同时尽可能不用图片。
现在访问速度挺快的~
图床的话,我用aliyun oss,装上插件后在wordpress上传图片会自动上传到aliyun,这样网站目录不会太重,访问图片也挺快。你用什么图床,有些图床突然不提供服务的话照片没有了比较麻烦
我用的是七牛云oss(挺稳的),配个typoar(markdown)和picGO(自动上传图片到图床),贼方便。?前辈,你上次访问的时候慢,是因为我用手机热点为Pi提供网络,现在的话是校园网(工作日晚上会断网)。