记一次ubuntu serverDNS配置修复 安装ubuntu2004 2404并配置网卡后，DNS默认值任然为127.0.0.53# 查看dns nslookup baidu.com ;; Got SERVFAIL reply from 127.0.0.53 Server: 127.0.0.53 Address: 127.0.0.53#53 # 查看DNS文件是链接到stub-resolv.conf ls -al /etc/resolv.conf /etc/resolv.conf -> ../run/systemd/resolve/stub-resolv.conf # 查看/run/systemd/resolve/下有resolv.conf，是正确的，和网卡一致 ls /run/systemd/resolve/ # 更新为正确resolv.conf sudo mv /etc/resolv.conf /etc/resolv.conf.bak sudo ln -s /run/systemd/resolve/resolv.conf /etc/resolv.conf

CentOS 定时同步指定文件到ftp 1、安装lftpsudo yum install lftp -y2、使用命令lftp -u username,password -e "mirror -R /path/to/local /path/to/ftp; quit" ftp://ftpserver同步成功提醒Total: 1 directory, 2 files, 0 symlinks New: 2 files, 0 symlinks 5471 bytes transferred To be removed: 1 directory, 0 files, 0 symlinks可以试用crontab调用或其它方式

配置nginx端口转发 如果本地服务confluence端口为8090,每次打开都要输入端口号貌似有点不优雅。所以我们可以用nginx做本地端口转发：一、安装Nginx:Centos安装Nginx二、编辑配置文件vim /usr/local/nginx/conf/nginx.conf# confluence 8090，一个转发一个server # 将域名confluence.test.com的所有流量转发到8090端口 # 其实真实访问地址就是将“confluence.test.com” 替换成 “http://127.0.0.1:8090” server { listen 80; server_name confluence.test.com; access_log /usr/local/nginx/logs/confluence.log; location / { proxy_pass http://127.0.0.1:8090/; } } 重启服务systemctl restart nginx 三、优雅食用

Centos7安装Nexus maven搭建个人仓库 一、环境要求：装有JDK二、安装软件1.下载链接：Nexus OSS 3.x版2.解压软件：tar -zxvf nexus-3.15.1-01-unix.tar.gz3.移动包到/usr/local目录下mv nexus-3.15.1-01 /usr/local -rf4.创建一个用户sudo useradd -rm nexus chown -R nexus.nexus /usr/local/nexus-3.15.1-01/5.创建服务：vim /etc/systemd/system/nexus.service 插入下面内容[Unit] Description=nexus service After=network.target [Service] Type=forking LimitNOFILE=65536 ExecStart=/usr/local/nexus-3.15.1-01/bin/nexus start ExecStop=/usr/local/nexus-3.15.1-01/bin/nexus stop User=nexus Restart=on-abort [Install] WantedBy=multi-user.target 使服务生效并开机自启sudo systemctl daemon-reload sudo systemctl enable nexus.service sudo systemctl start nexus.service 6.启动：systemctl start nexus 7.配置方向代理：apache：ProxyRequests Off ProxyPreserveHost On <VirtualHost *:80> ServerName repo.example.com ServerAdmin admin@example.com AllowEncodedSlashes NoDecode ProxyPass /nexus http://localhost:8081/nexus nocanon ProxyPassReverse /nexus http://localhost:8081/nexus ErrorLog logs/repo.example.com/nexus/error.log CustomLog logs/repo.example.com/nexus/access.log common </VirtualHost> Nginx:http { proxy_send_timeout 120; proxy_read_timeout 300; proxy_bufferingoff; keepalive_timeout 5 5; tcp_nodelayon; server { listen *:80; server_name repo.example.com; # allow large uploads of files client_max_body_size 1G; # optimize downloading files larger than 1G # proxy_max_temp_file_size 2G; location /nexus { # Use IPv4 upstream address instead of DNS name to avoid attempts by nginx to use IPv6 DNS lookup proxy_pass http://127.0.0.1:8081/nexus; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } } 更多请查看：run-behind-a-reverse-proxy8.更改nexus目录：vim /usr/local/nexus-3.15.1-01/bin/nexus.vmoptions 更改下面三个路径到你想要的路径下： -Dkaraf.data=/opt/sonatype-work/nexus3 -Djava.io.tmpdir=/opt/sonatype-work/nexus3/tmp -XX:LogFile=/opt/sonatype-work/nexus3/log/jvm.log 完美Ending更多详情，请看官方文档：sonatypeDoc

Centos7 安装Jenkins流程 一、环境确认：1.硬件要求：256 MB of RAM1 GB的驱动器空间2.软件要求：确认系统安装了jdk：java -versionJava 8是当前唯一支持的运行时环境，支持32位和64位版本如果没装，运行下面命令进行安装yum install java二、系统安装1.下载依赖sudo wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo 2.导入秘钥sudo rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key3.安装yum install jenkins 4.查找Jenkins的安装路径rpm -ql jenkins /etc/init.d/jenkins /etc/logrotate.d/jenkins /etc/sysconfig/jenkins #jenkins配置文件，“端口”，“JENKINS_HOME”等都可以在这里配置 /usr/lib/jenkins #安装目录，war包会放在这里 /usr/lib/jenkins/jenkins.war /usr/sbin/rcjenkins /var/cache/jenkins /var/lib/jenkins #默认的JENKINS_HOME /var/log/jenkins #jenkins日志目录 5.配置Jenkinsvim /etc/sysconfig/jenkins 6.确认无误后启动systemctl start jenkins systemctl enable jenkins7.添加端口firewall-cmd --permanent --add-port=8080/tcp firewalld reload三、网页安装1.网页打开：http://yourip:8080根据网页提示，cat出初始密码，填入密码框cat /var/lib/jenkins/secrets/initialAdminPassword