RedHat/CentOS System Administration


ISO

Hostname

  • /etc/hosts
  • /etc/sysconfig/network

    NETWORKING=yes
    NETWORKING_IPV6=no
    HOSTNAME=localhost.localdomain
    GATEWAY=192.168.111.1
    

Release

  • /etc/redhat-release

Locale

  • /etc/sysconfig/i18n

Network

  • DNS

    cat >/etc/resolv.conf <<DELIM
    nameserver 8.8.8.8
    DELIM
    
  • ifcfg

    cat >/etc/sysconfig/network-scripts/ifcfg-eth0 <<DELIM
    DEVICE=eth0
    BOOTPROTO=static
    BROADCAST=192.168.111.255
    HWADDR=D8:D3:85:A9:C6:34
    IPADDR=192.168.111.77
    NETMASK=255.255.255.0
    NETWORK=192.168.111.0
    ONBOOT=yes
    DELIM
    
  • static route

    cat >/etc/sysconfig/network-scripts/route-eth0 <<DELIM
    192.168.111.0/24 via 192.168.111.1 dev eth0
    DELIM
    

Autorun

  • /etc/rc.local

tcpd

  • /etc/hosts.allow
  • /etc/hosts.deny

ssh-agent

eval `ssh-agent`
ssh-add ~/.ssh/id_rsa

/etc/profile

export TMOUT=300 #shell timeout

64位系统上移除32位软件包

yum remove \*.i\?86
cat >>/etc/yum.conf <<DELIM
[main]
exclude = *.i?86
DELIM