随笔分类 - linux
摘要：查看当前防火墙状态：netsh advfirewall show allprofiles关闭防火墙：netsh advfirewall set allprofiles state off开启防火墙：netsh advfirewall set allprofiles state on添加删除规则net
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摘要：wget http://nchc.dl.sourceforge.net/project/p7zip/p7zip/9.20.1/p7zip_9.20.1_src_all.tar.bz2tar -jxvf p7zip_9.20.1_src_all.tar.bz2cd p7zip_9.20.1makema
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摘要：rsync -avuP jdk1.8.0_202 root@192.168.1.68:/data 清理缓存 sync;sync;sync;echo 1 > /proc/sys/vm/drop_caches # 仅清除页面缓存sync;sync;sync;echo 2 > /proc/sys/vm/d
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摘要：mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/rep
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摘要：linux7以上安装图形化 yum groupinstall -y "GNOME Desktop" "Graphical Administration Tools"systemctl get-defaultsystemctl set-default graphical.targetsystemctl
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摘要：pvcreate /dev/sdbvgcreate vg_nc /dev/sdblvcreate -l +100%FREE -n lv_nc vg_ncmkfs.xfs /dev/vg_nc/lv_ncmount /dev/vg_nc/lv_nc /nc xfs文件系统扩展vgextend vg_n
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摘要：压缩 目录 tar -cf - ORCL|pigz -p 16 > orcl.tar.gz 文件 pigz -p 16 -c ./1.dbf > 1.gz 解压 目录 tar -zxf orcl.tar.gz pigz -d orcl.tar.gz 文件 pigz -d 1.gz
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摘要：ls -l /sys/class/scsi_hostls -l /sys/class/fc_hostfor host in `ls /sys/class/scsi_host` ;do echo "- - -" > /sys/class/scsi_host/${host}/scan; donefor
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摘要：ipv6.disable=1 [root@ht01 ~]# cat /etc/default/grub GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" GRUB_DEFAULT=save
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摘要：[qdds]@ht01[/ogg/bk]$ls -lrttotal 454636-rw-r . 1 oracle oinstall 292397056 Dec 21 05:13 full_qddds_2020122101vijtmc_1_1-rw-r . 1 oracle oinstall 1097
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摘要：[root@ht02 ~]# cat /etc/ssh/sshd_config|grep "DNS" UseDNS no 重启sshd服务 systemctl restart sshd
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摘要：Oracle Linux 7: Udev rule for ASM Cannot Place the ASM Disk in a Directory under /dev (Doc ID 2217951.1) [root@ht01 rules.d]# cat 96-asmmultipath.rule
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摘要：ssh-keygen -t rsa ssh-copy-id -i ~/.ssh/id_rsa.pub username@hostname
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摘要：查看网络 ip addr 设置主机名 hostnamectl status hostnamectl set-hostname ht02 在root用户权限下： 查看当前启动模式 systemctl get-default 更改模式命令： systemctl set-default graphical
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摘要：linux 6 以上 mkdir -p /mnt/cdrom/ mount /dev/sr0 /mnt/cdrom [root@ht01 yum.repos.d]# cat local.repo [Server] name=Server baseurl=file:///mnt/cdrom enabl
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摘要：防火墙（firewalld）临时关闭防火墙systemctl stop firewalld永久防火墙开机自关闭systemctl disable firewalld临时打开防火墙systemctl start firewalld防火墙开机启动systemctl enable firewalld查看防
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摘要：gzip -c /home/mysql/test_db-master/load_employees.dump | ssh mycat@192.168.20.204"gunzip -c - >/home/mycat/load_employees.dump" nc -l 12345 | tar xvzf
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