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中国制造再获认可，挑战韩国在行业内的领导地位

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jekyll本地环境安装o运行o增文-基础2

一、环境安装 1、安装高版本 ruby（3.0） ​ 过程： #导入密钥： gpg --keyserver hkp://pgp.mit.edu --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB # sudo apt install ca-certificates # curl -skSL https://get.rvm.io | bash -s stable ## rvm list known rvm install ruby-3 #出现异常提示：再次执行了 rvm install ruby-3 ruby -v ​ 参考：https://blog.csdn.net/mydo/article/details/126951981 2、安装jekyll ​ Install Ruby and other prerequisites: sudo apt-get install ruby-full build-essential zlib1g-dev # echo '# Install Ruby Gems to ~/gems' >> ~/.bashrc echo 'export GEM_HOME="$HOME/gems"' >> ~/.bashrc echo 'export PATH="$HOME/gems/bin:$PATH"' >> ~/.bashrc source ~/.bashrc # gem install jekyll bundler ​ 参考链接：https://jekyllrb.com/docs/installation/ubuntu/ 二、拉取仓库代码后，添加新文档 ​ https://github.com/wbxxgit/wbxxgit.github.io ​ 添加文档步骤： 1.复制模版文档。套用文档名以标记时间、套用头部标签可改写标签。 2.删除内容，添加新内容。 3.如添加图片，参考后面方法x。 三、提交与部署 1、进入仓库目录下执行更新 ​ 执行更新命令：（已添加完新文档，在本地测试验证） bundle update bundle install 2、查看本地运行正常，执行命令 #后期重新登录后执行下：bundle update bundle exec jekyll serve -H 192.168.231.130 ​ 后续改动文章，不需要执行第一步命令。 ​ 以后调试需执行下更新： bundle update 3、提交平台代码 217 git status 218 git add . 219 git status 220 git commit -m 'update bundle test' 221 git status 222 git push 4、到github仓库触发部署 ​ 触发：action - deploy。 ​ 部署图示： 四、文章中挂图方法 ​ 1、在md文档中，放置图片时，直接粘贴图片路径。示例格式： ![img](/assets/images/图片路径格式.png) ​ 2、《/assets/images/》为工程目录。需提前将想挂图片命名合宜，复制到工程中。 其他命令参考： #删除升级进程： sudo rm /var/lib/dpkg/lock-frontend sudo rm /var/lib/dpkg/lock sudo dpkg --configure -a sudo apt-get update

Ubuntu裸机环境配置o网络-基础0

一、安装必备工具 ​ 如无网络，更改下临时dns配置 #1、编辑DNS配置文件 sudo vi /etc/resolv.conf #2、添加DNS配置信息： nameserver 223.6.6.6 #或 nameserver 114.114.114.114 ​ 安装远程连接： sudo apt-get install openssh-server #远程连接后更改，#配置源 sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak sudo vi /etc/apt/sources.list # sudo apt-get update sudo apt-get install vim lrzsz -y #编译命令安装 sudo apt install gcc make -y 二、配置源 ​ 配置源参考： #阿里源地址 deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse ##22 镜像源 deb http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse ##20 镜像源： deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse ##16.04源 deb https://mirrors.aliyun.com/ubuntu/ xenial main deb-src https://mirrors.aliyun.com/ubuntu/ xenial main deb https://mirrors.aliyun.com/ubuntu/ xenial-updates main deb-src https://mirrors.aliyun.com/ubuntu/ xenial-updates main deb https://mirrors.aliyun.com/ubuntu/ xenial universe deb-src https://mirrors.aliyun.com/ubuntu/ xenial universe deb https://mirrors.aliyun.com/ubuntu/ xenial-updates universe deb-src https://mirrors.aliyun.com/ubuntu/ xenial-updates universe deb https://mirrors.aliyun.com/ubuntu/ xenial-security main deb-src https://mirrors.aliyun.com/ubuntu/ xenial-security main deb https://mirrors.aliyun.com/ubuntu/ xenial-security universe deb-src https://mirrors.aliyun.com/ubuntu/ xenial-security universe 三、设置永久dns 1、找到文件，增加内容 sudo vim /etc/systemd/resolved.conf #尾行增加 DNS=114.114.114.114 8.8.8.8 2、删除原软连接，增加新软连接 sudo rm /etc/resolved.conf sudo ln -s /run/systemd/resolve/resolv.conf /etc 3、重启服务，可查看 sudo systemctl restart systemd-resolved.service #查看 cat /etc/systemd/resolved.conf 四、安装samba #开始安装 sudo apt-get install samba samba-common -y #查看版本 samba -V #添加用户 sudo smbpasswd -a my #修改配置，/home/my/samba sudo vim /etc/samba/smb.conf ​ 增加修改内容 [share] comment=This is samba dir path=/home/my create mask=0755 directory mask=0755 writeable=yes valid users=my browseable=yes #重启服务 sudo /etc/init.d/smbd restart

Clash在ubuntu下的安装使用-基础1

Linux版本 一、下载安装包 ​ 解压、移动到应用程序目录下 tar zxvf clash_2.0.24_linux_amd64.tar.gz sudo cp clash /usr/local/bin/ ​ 可下载链接： ​ https://github.com/doreamon-design/clash/releases ​ https://github.com/doreamon-design/clash/releases/download/v2.0.24/clash_2.0.24_linux_amd64.tar.gz 二、配置与使用 ​ 1、先启动clash（以root用户）。以生成配置目录 ​ 2、准备两个文件： config.yaml Country.mmdb ​ 拷贝到配置目录下：/root/.config/clash Country.mmdb:网络下载或备份 config.yaml：备份或从订阅制作 三、配置代理说明 ​ 普通用户 需设置代理环境变量。（对两种用户均执行下） echo -e "export http_proxy=http://127.0.0.1:7890\nexport https_proxy=http://127.0.0.1:7890" >> ~/.bashrc ​ root用户 需设置代理环境变量。 echo -e "export http_proxy=http://127.0.0.1:7890\nexport https_proxy=http://127.0.0.1:7890" >> ~/.bashrc ​ 系统界面 需设置代理 http_proxy:127.0.0.1:7890 socks host:127.0.0.1:7891 四、 root用户启动clash程序 root: clash 五、普通用户测试上网 curl google.com ​

Linux多线程之pthread_key_create

一、说明 线程特定数据（TSD）：pthread_key_create() 每个线程都有自己独立的数据副本，线程可以访问和修改这些数据，而不影响其他线程的数据。 应用场景： 线程上下文管理：有些情况下，我们需要在线程执行过程中保存一些临时的上下文信息，以便在后续的函数调用中使用。通过pthread_key_create()函数创建线程特定数据的键，并在每个线程中保存这些临时上下文信息。这种方式比通过函数参数传递数据更简洁方便，同时避免了函数参数的传递和维护成本。 *需要注意的是，pthread_key_create()函数用于线程内的数据访问，对于多个线程之间需要共享的数据，仍然需要使用其他线程同步机制，如互斥锁或信号量等。 二、参考链接 https://blog.csdn.net/Lid_23/article/details/132036106 三、示例代码 #include <stdio.h> #include <stdlib.h> #include <pthread.h> // 定义线程特定数据键 pthread_key_t key; // 析构函数 void destructor_function(void* data) { printf("Free thread-specific data\n"); free(data); } void print_threadID() { int* data = pthread_getspecific(key); printf("Print Thread ID: %u\n", *data); } // 线程函数 void* thread_func(void* arg) { // 获取线程特定数据 void* data = pthread_getspecific(key); if (data == NULL) { // 初始化线程特定数据 data = malloc(sizeof(int)); *(int*)data = pthread_self(); printf("Thread ID: %u\n", pthread_self()); pthread_setspecific(key, data); } // 打印线程特定数据 print_threadID(); return NULL; } int main() { // 创建线程特定数据键 pthread_key_create(&key, destructor_function); // 创建两个线程 pthread_t thread1, thread2; pthread_create(&thread1, NULL, thread_func, NULL); pthread_create(&thread2, NULL, thread_func, NULL); // 等待线程结束 pthread_join(thread1, NULL); pthread_join(thread2, NULL); return 0; } 调试 gcc main.c -lpthread my@my-virtual-machine:~/project/sig2/key_create$ ./a.out Thread ID: 2551236352 Print Thread ID: 2551236352 Free thread-specific data Thread ID: 2542843648 Print Thread ID: 2542843648 Free thread-specific data

socket网络通讯及select使用

一、介绍 服务端 socket:创建套接字，返回文件描述符。 bind：套接字绑定信息。绑定ip，端口。 listen:用于被动监听客户链接。将套接字变为被动描述符。 accept:三次握手Ok,返回一个通信描述符。 注：示例程序中，将新返回描述符加入的监听集合。继续监听通讯数据链接。 客户端 connect:向服务器发起握手请求。socket之后。 二、链接参考 https://vigourtyy-zhg.blog.csdn.net/article/details/102535706?spm=1001.2101.3001.6650.1&utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-1-102535706-blog-117226481.235%5Ev43%5Epc_blog_bottom_relevance_base4&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-1-102535706-blog-117226481.235%5Ev43%5Epc_blog_bottom_relevance_base4&utm_relevant_index=2&ydreferer=aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80OTg0MDI4NS9hcnRpY2xlL2RldGFpbHMvMTE3MjI2NDgxP3V0bV9tZWRpdW09ZGlzdHJpYnV0ZS5wY19yZWxldmFudC5ub25lLXRhc2stYmxvZy0yfmRlZmF1bHR%2BYmFpZHVqc19iYWlkdWxhbmRpbmd3b3JkfmRlZmF1bHQtMS0xMTcyMjY0ODEtYmxvZy04OTQwMDIxNS4yMzVedjQzXnBjX2Jsb2dfYm90dG9tX3JlbGV2YW5jZV9iYXNlNCZzcG09MTAwMS4yMTAxLjMwMDEuNDI0Mi4yJnV0bV9yZWxldmFudF9pbmRleD00 https://blog.csdn.net/weixin_51086006/article/details/132253704 Linux中对文件描述符的操作（FD_ZERO、FD_SET、FD_CLR、FD_ISSET）： https://blog.csdn.net/houxiaoni01/article/details/103316774?utm_medium=distribute.pc_relevant.none-task-blog-2~default~baidujs_baidulandingword~default-1-103316774-blog-51736431.235^v43^pc_blog_bottom_relevance_base4&spm=1001.2101.3001.4242.2&utm_relevant_index=4 三、示例代码 server #include <stdio.h> #include <string.h> #include <unistd.h> #include <stdlib.h> #include <fcntl.h> #include <sys/select.h> #include <sys/time.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #define LISTEN_BACKLOG (5) #define BUF_SIZE (1500) #define ACK_STR "ack ok" void usage(void) { printf("*********************************\n"); printf("./server 本端ip 本端端口\n"); printf("*********************************\n"); } int main(int argc, char *argv[]) { struct sockaddr_in local; struct sockaddr_in peer; int sock_fd = 0, new_fd = 0; int ret = 0; socklen_t addrlen = 0; char send_buf[BUF_SIZE] = {0}; char recv_buf[BUF_SIZE] = {0}; if (argc != 3) { usage(); return -1; } char *ip = argv[1]; unsigned short port = atoi(argv[2]); printf("ip:port->%s:%u\n", argv[1], port); sock_fd = socket(AF_INET, SOCK_STREAM, 0); if (sock_fd == -1) { perror("socket error"); return -1; } memset(&local, 0, sizeof(struct sockaddr_in)); local.sin_family = AF_INET; local.sin_addr.s_addr = inet_addr(ip); local.sin_port = htons(port); ret = bind(sock_fd, (struct sockaddr *)&local, sizeof(struct sockaddr)); if (ret == -1) { close(sock_fd); perror("bind error"); return -1; } ret = listen(sock_fd, LISTEN_BACKLOG); if (ret == -1) { close(sock_fd); perror("listen error"); return -1; } fd_set rfds; fd_set rfds_storage; FD_ZERO(&rfds_storage); FD_SET(sock_fd, &rfds_storage); int max_fd = sock_fd; while (1) { rfds = rfds_storage; struct timeval tv = {.tv_sec = 5, .tv_usec = 0}; ret = select(max_fd + 1, &rfds, NULL, NULL, &tv); if (ret == -1) { perror("select error"); break; } else if (ret == 0) { printf("select timeout\n"); continue; } else { printf("select ok\n"); } for (int fd = 0; fd < max_fd + 1; fd++) { if (FD_ISSET(fd, &rfds)) { if (fd == sock_fd) { addrlen = sizeof(peer); new_fd = accept(sock_fd, (struct sockaddr *)&peer, &addrlen); if (new_fd == -1) { perror("accept error"); continue; } FD_SET(new_fd, &rfds_storage); max_fd = (new_fd <= max_fd) ? max_fd : new_fd; printf("accept success new fd:%d. listen fd:%d\n", new_fd, fd); } else { memset(recv_buf, 0, BUF_SIZE); ret = recv(fd, recv_buf, BUF_SIZE, 0); if (ret <= 0) { close(fd); FD_CLR(fd, &rfds_storage); } else { printf("recv len:%d, %s\n", ret, recv_buf); } } } } } for (int fd = 0; fd < max_fd + 1; fd++) { if (FD_ISSET(fd, &rfds)) { printf("clsoe fd:%d\n", fd); close(fd); } } FD_ZERO(&rfds); FD_ZERO(&rfds_storage); return 0; } client #include <stdio.h> #include <string.h> #include <unistd.h> #include <stdlib.h> #include <fcntl.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #define LISTEN_BACKLOG (5) #define BUF_SIZE (1500) #define REQUEST_STR "tcp pack" void usage(void) { printf("*********************************\n"); printf("./client 对端ip 1对端端口\n"); printf("*********************************\n"); } int main(int argc, char *argv[]) { struct sockaddr_in server; int sock_fd = 0; int ret = 0; socklen_t addrlen = 0; char send_buf[BUF_SIZE] = {0}; char recv_buf[BUF_SIZE] = {0}; if (argc != 3) { usage(); return -1; } char *ip = argv[1]; unsigned short port = atoi(argv[2]); printf("ip:port->%s:%u\n", argv[1], port); sock_fd = socket(AF_INET, SOCK_STREAM, 0); if (sock_fd == -1) { perror("socket error"); return -1; } memset(&server, 0, sizeof(struct sockaddr_in)); server.sin_family = AF_INET; server.sin_addr.s_addr = inet_addr(ip); server.sin_port = htons(port); ret = connect(sock_fd, (struct sockaddr *)&server, sizeof(struct sockaddr)); if (ret == -1) { close(sock_fd); perror("connect error"); return -1; } int seq = 0; while(1) { memset(send_buf, 0, BUF_SIZE); sprintf(send_buf, "%s:%d", REQUEST_STR, seq++); send(sock_fd, send_buf, strlen(send_buf), 0); printf("send %s\n", send_buf); sleep(1); } close(sock_fd); return 0; }