7月 162021
4月 212021
命令行二维码工具qrencode包信息
[root@centos-s-1vcpu-1gb-nyc3-01 ~]# dnf info qrencode
Last metadata expiration check: 0:00:11 ago on Wed 21 Apr 2021 01:24:40 AM UTC.
Installed Packages
Name : qrencode
Version : 3.4.4
Release : 5.el8
Architecture : x86_64
Size : 35 k
Source : qrencode-3.4.4-5.el8.src.rpm
Repository : @System
From repo : appstream
Summary : Generate QR 2D barcodes
URL : http://fukuchi.org/works/qrencode/
License : LGPLv2+
Description : Qrencode is a utility software using libqrencode to encode string data in
: a QR Code and save as a PNG image.
[root@centos-s-1vcpu-1gb-nyc3-01 ~]#
准备内容文件
[root@centos-s-1vcpu-1gb-nyc3-01 ~]# echo "https://www.baidu.com/" > url.txt [root@centos-s-1vcpu-1gb-nyc3-01 ~]# cat url.txt https://www.baidu.com/ [root@centos-s-1vcpu-1gb-nyc3-01 ~]#
生成文本二维码
3月 132021
2月 022021
202102
1月 262021
iptables示例
sudo iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 8080 sudo iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 443 -j REDIRECT --to-port 8443
firewalld示例
# allow incoming connections on port 80. # You can also use --add-service=http instead of adding a port number sudo firewall-cmd --add-port=80/tcp --permanent sudo firewall-cmd --permanent \ --add-forward-port=port=80:proto=tcp:toaddr=127.0.0.1:toport=8080 # allow incoming connections on port 443. # You can also use --add-service=https instead of adding a port number sudo firewall-cmd --add-port=443/tcp --permanent sudo firewall-cmd --permanent \ --add-forward-port=port=443:proto=tcp:toaddr=127.0.0.1:toport=8443 sudo firewall-cmd --reload
内容引用：
https://www.jenkins.io/doc/book/system-administration/reverse-proxy-configuration-iptables/
1月 262021
安装阶段修改配置
[root@jenkins ~]# cd /var/lib/jenkins/ [root@jenkins jenkins]# cat hudson.model.UpdateCenter.xml <?xml version='1.1' encoding='UTF-8'?> <sites> <site> <id>default</id> <url>https://updates.jenkins.io/update-center.json</url> </site> </sites>[root@jenkins jenkins]# [root@jenkins jenkins]# cat hudson.model.UpdateCenter.xml <?xml version='1.1' encoding='UTF-8'?> <sites> <site> <id>default</id> <url>https://mirrors.tuna.tsinghua.edu.cn/jenkins/updates/update-center.json</url> </site> </sites> [root@jenkins jenkins]#
使用阶段修改配置
1月 152021
1月 052021
File -> Settings -> Project -> Python Interpreter -> Install -> Available Packages -> Manage Repositories https://mirrors.163.com/pypi/simple/ https://mirrors.ustc.edu.cn/pypi/web/simple https://pypi.tuna.tsinghua.edu.cn/simple https://mirrors.aliyun.com/pypi/simple/
12月 242020
https://ipinfo.io/developers
C:\Users\harveymei>curl ipinfo.io
{
"ip": "119.137.55.106",
"city": "Shenzhen",
"region": "Guangdong",
"country": "CN",
"loc": "22.5455,114.0683",
"org": "AS4134 CHINANET-BACKBONE",
"timezone": "Asia/Shanghai",
"readme": "https://ipinfo.io/missingauth"
}
C:\Users\harveymei>
10月 122020
#定义一个创建文件的函数
def create_file():
path = 'C:/Users/harveymei/Desktop/' #最后一个斜线必须有
fullname = path + filename + '.txt'
file = open(fullname, 'w')
file.close()
#使用for循环调用创建文件函数
for name in range(1,11): #使用range()函数提供1-10序列数值
filename = str(name) #使用str()函数将整数转换为字符串赋值给变量
create_file() #循环调用函数，创建10个文件
PS D:\Python> & C:/Users/harveymei/AppData/Local/Programs/Python/Python39/python.exe d:/Python/hello.py
PS D:\Python> ls C:\Users\harveymei\Desktop\
目录: C:\Users\harveymei\Desktop
Mode LastWriteTime Length Name
---- ------------- ------ ----
-a---- 2020/10/12 11:51 0 1.txt
-a---- 2020/10/12 11:51 0 10.txt
-a---- 2020/10/12 11:51 0 2.txt
-a---- 2020/10/12 11:51 0 3.txt
-a---- 2020/10/12 11:51 0 4.txt
-a---- 2020/10/12 11:51 0 5.txt
-a---- 2020/10/12 11:51 0 6.txt
-a---- 2020/10/12 11:51 0 7.txt
-a---- 2020/10/12 11:51 0 8.txt
-a---- 2020/10/12 11:51 0 9.txt
-a---- 2020/10/9 9:00 2136 Docker Desktop.lnk
-a---- 2020/4/14 8:55 2371 GitHub Desktop.lnk
-a---- 2020/8/28 15:20 2312 Kindle.lnk
-a---- 2020/8/21 17:59 2255 MockingBot.lnk
-a---- 2020/10/10 9:40 2217 Slack.lnk
PS D:\Python>