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centos glusterfs 4.1

yum install centos-release-gluster41 yum update glusterfs

列出 getent passwd

# vi /etc/sssd/sssd.conf autofs_provider = ldap cache_credentials = True ldap_search_base = dc=liho,dc=tw krb5_realm = LIHO.TW krb5_server = kerberos.liho.tw id_provider = ldap auth_provider …

加入訊息到 dmesg

# echo “this is a test message” > /dev/kmsg

手動 rotate logs

# logrotate /etc/logrotate.d/your-logrotate-config

產生 environment-modules 模組

$ /usr/share/Modules/bin/createmodule.py “/opt/intel/composer_xe/2019/bin/compilervars.sh intel64 -platform linux” 用上面的指令產生模組描述檔案

CentOS 7 改 root 密碼

CentOS 6 之前都很簡單，只要在 grub 編輯 “-s” 然後既可以改。CentOS 7真的要做一下筆記了。重新開機後在 boot grub 裡面選第一個然後按 ‘e’ 按鈕編輯（參考 step 1 image）然後找到 ‘ro’ 改成 ‘rw init=/sysroot/bin/sh’ …

[植物圖鑑] – 紫玉蘭

Magnolia liliiflora, Mulan magnolia, purple magnolia

# vi /etc/sysconfig/network-scripts/route-em1192.168.2.0/24 via 192.168.2.254 dev em1 或是 # vi /etc/sysconfig/network-scripts/route-em1ADDRESS0=192.168.1.0NETMASK0=255.255.255.0GATEWAY0=192.168.1.1ADDRESS1=192.168.2.0NETMASK1=255.255.255.0GATEWAY1=192.168.2.1