一、網絡
centos8
1、# vim /etc/sysconfig/network-scripts/ifcfg-ens33
2、# nmcli c reload ens33
3、# nmcli c up ens33
rhel8
#vim /etc/sysconfig/network-scripts/ifcfg-ens160
TYPE="Ethernet" PROXY_METHOD="none" BROWSER_ONLY="no" BOOTPROTO="none" DEFROUTE="yes" NAME="ens160" UUID="973e78e5-624c-4f72-99ec-ede4a44e4723" DEVICE="ens160" ONBOOT="yes" IPADDR=192.168.40.163 GATEWAY=192.168.40.2 NETMASK=255.255.255.0 DNS1=114.114.114.114
重啟網卡要用
nmcli connection down/up ens160
建議使用
#nmcli connection modify ens160 ipv4.addresses 192.168.1.63/24 ipv4.method manual ipv4.gateway 192.168.1.1 ipv4.dns 192.168.1.1
采用7的system 啟動 network
# dnf install -y network-scripts
采用yum安裝應用
在RHEL8中把軟件源分成了兩部分
一個是BaseOS
一個是AppStream
在rhel8中,統一的ISO自動加載BaseOS和AppStream安裝源存儲庫。已經存在於光盤鏈接中,只不過要分別去配置.repo文件,BaseOS 存儲庫 - BaseOS 存儲庫以傳統 RPM 包的形式提供底層核心 OS 內容
AppStream 存儲庫 - Application Stream 存儲庫提供您可能希望在給定用戶空間中運行的所有應用程序。
# find / -name AppStream /run/media/root/RHEL-8-0-0-BaseOS-x86_64/AppStream # cd /run/media/root/RHEL-8-0-0-BaseOS-x86_64/ # ls AppStream EFI extra_files.json images media.repo RPM-GPG-KEY-redhat-release BaseOS EULA GPL isolinux RPM-GPG-KEY-redhat-beta TRANS.TBL
把yum源指向AppStream和BaseOS
# vim /etc/yum.repos.d/rhel8-local.repo
[localREPO] name=localrhel8 baseurl=file:///run/media/root/RHEL-8-0-0-BaseOS-x86_64/BaseOS enable=1 gpgcheck=0 [localREPO_App] name=localrhel8 baseurl=file:///run/media/root/RHEL-8-0-0-BaseOS-x86_64/AppStream enable=1 gpgcheck=0
直接yum install -y 就能用了
dnf的使用
dnf使用 RPM, libsolv 和 hawkey 庫進行包管理操作,是YUM v4版,之前在RHEL 7上使用的YUM v3相比具有以下優點:
提高性能、支持模塊化內容、設計良好的用於與工具集成的穩定API
查看系統中可用的 DNF 軟件庫
dnf repolist
查看系統中可用和不可用的所有的 DNF 軟件庫
dnf repolist all
列出所有 RPM 包
dnf list
列出所有安裝了的 RPM 包
dnf list installed
列出所有可供安裝的 RPM 包
dnf list available
搜索軟件庫中的 RPM 包
dnf search nano
查找某一文件的提供者
dnf provides /bin/bash
查看軟件包詳情
dnf info nano
刪除無用孤立的軟件包
dnf autoremove
刪除緩存的無用軟件包
dnf clean all
獲取有關某條命令的使用幫助
dnf help clean
查看 DNF 命令的執行歷史
dnf history
查看所有的軟件包組
dnf grouplist
安裝一個軟件包組
dnf groupinstall ‘安全性工具’
從特定的軟件包庫安裝特定的軟件
dnf -enablerepo=epel install nginx
二、安裝飛行駕駛艙
#yum install -y *cockpit*
#systemctl start cockpit
# systemctl enable --now cockpit.socket
瀏覽器+ip+:9090
[root@bogon ~]# netstat -anptul | grep 9090
tcp6 0 0 :::9090 :::* LISTEN 1/systemd
而在rhel8中圖形化已經默認安裝了 cockpit.
執行systemctl enable --now cockpit.socket
最小化
yum -y install cockpit
cetnos版
rhel版
二、安裝docker
[root@localhost ~]# yum install -y docker-ce
Updating Subscription Management repositories.
Unable to read consumer identity
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Docker CE Stable - x86_64 11 kB/s | 20 kB 00:01
錯誤:
問題: package docker-ce-3:19.03.4-3.el7.x86_64 requires containerd.io >= 1.2.2-3, but none of the providers can be installed
- cannot install the best candidate for the job
- package containerd.io-1.2.10-3.2.el7.x86_64 is excluded
- package containerd.io-1.2.2-3.3.el7.x86_64 is excluded
- package containerd.io-1.2.2-3.el7.x86_64 is excluded
- package containerd.io-1.2.4-3.1.el7.x86_64 is excluded
- package containerd.io-1.2.5-3.1.el7.x86_64 is excluded
- package containerd.io-1.2.6-3.3.el7.x86_64 is excluded
(try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)
解決辦法:
下載docker rpm地址
https://download.docker.com/linux/centos/7/x86_64/stable/Packages/
[root@localhost ~]# rpm -ivh containerd.io-1.2.4-3.1.el7.x86_64.rpm
警告:containerd.io-1.2.4-3.1.el7.x86_64.rpm: 頭V4 RSA/SHA512 Signature, 密鑰 ID 621e9f35: NOKEY
錯誤:依賴檢測失敗:
runc 與 containerd.io-1.2.4-3.1.el7.x86_64 沖突
runc 被 containerd.io-1.2.4-3.1.el7.x86_64 取代
[root@localhost ~]# yum erase runc (erase等價與remove,刪除runc)
。。。。。
[root@localhost ~]# rpm -ivh containerd.io-1.2.4-3.1.el7.x86_64.rpm
[root@localhost ~]# systemctl start docker.service
[root@localhost ~]# systemctl enable docker.service
Created symlink /etc/systemd/system/multi-user.target.wants/docker.service → /usr/lib/systemd/system/docker.service.
[root@localhost ~]# docker version
Client: Docker Engine - Community
Version: 19.03.4
。。。。。
Server: Docker Engine - Community
。。。。。。
[root@localhost ~]# docker pull daocloud.io/library/nginx:1.7.9 (拉取鏡像)
1.7.9: Pulling from library/nginx
a3ed95caeb02: Pull complete
6f5424ebd796: Pull complete
d15444df170a: Pull complete
e83f073daa67: Pull complete
a4d93e421023: Pull complete
084adbca2647: Pull complete
c9cec474c523: Pull complete
Digest: sha256:2204e6cc1bbcc3c5587aaada2c59819599847f1dbe5876dc21eba6764aa795ef
Status: Downloaded newer image for daocloud.io/library/nginx:1.7.9
daocloud.io/library/nginx:1.7.9
[root@localhost ~]# docker image list (查看鏡像)
REPOSITORY TAG IMAGE ID CREATED SIZE
daocloud.io/library/nginx 1.7.9 84581e99d807 4 years ago 91.7MB
[root@localhost ~]# docker run -it 8458 /bin/bash (run為老命令)
root@f13c299e8ea1:/# ls
bin dev home lib64 mnt proc run selinux sys usr
boot etc lib media opt root sbin srv tmp var
三、docker官方加速器curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://f1361db2.m.daocloud.io
該腳本可以將 --registry-mirror 加入到你的 Docker 配置文件 /etc/docker/daemon.json 中。適用於 Ubuntu14.04、Debian、CentOS6 、CentOS7、Fedora、Arch Linux、openSUSE Leap 42.1,其他版本可能有細微不同。
四、centos7安裝docker
附加ubantu下的docker安裝https://www.runoob.com/docker/ubuntu-docker-install.html
1、設置阿里雲鏡像源
wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O /etc/yum.repos.d/
2、安裝 Docker-CE
yum install docker-ce
3、報錯
--> Processing Conflict: 1:docker-ce-cli-18.09.6-3.el7.x86_64 conflicts docker --> Processing Conflict: 1:docker-ce-cli-18.09.6-3.el7.x86_64 conflicts docker-io --> Processing Conflict: 3:docker-ce-18.09.6-3.el7.x86_64 conflicts docker --> Processing Conflict: 3:docker-ce-18.09.6-3.el7.x86_64 conflicts docker-io --> Finished Dependency Resolution Error: docker-ce conflicts with 2:docker-1.13.1-96.gitb2f74b2.el7.centos.x86_64 Error: docker-ce-cli conflicts with 2:docker-1.13.1-96.gitb2f74b2.el7.centos.x86_64 You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest
4、解決辦法
# 1、查看安裝過的docker: yum list installed | grep docker docker.x86_64 2:1.13.1-74.git6e3bb8e.el7.centos docker-client.x86_64 2:1.13.1-74.git6e3bb8e.el7.centos docker-common.x86_64 2:1.13.1-74.git6e3bb8e.el7.centos # 2、卸載docker: #yum remove -y docker-ce.x86_64 docker-client.x86_64 docker-common.x86_64 # 3、刪除容器鏡像: #rm -rf /var/lib/docker # 4、 重新安裝docker #yum install docker-ce
5、啟動docker
# 開機自啟
#systemctl enable docker
# 啟動docker服務
#systemctl start docker
6、添加docker用戶組(可選)
# 1. 建立 Docker 用戶組
# groupadd docker
# 2.添加當前用戶到 docker 組
#usermod -aG docker $USER