centos 新装的常见问题

1.没有1080分辨率

vi /etc/X11/xorg.conf

Section "Monitor"
        Identifier   "Monitor0"
        VendorName   "Monitor Vendor"
        ModelName    "Monitor Model"
        HorizSync   28.0 - 70.0
        VertRefresh     56.0 - 75.0
EndSection

Section "Device"
        Identifier  "VMware SVGA"
        Driver      "vesa"
EndSection

Section "Screen"
        Identifier "Screen0"
        Device     "Card0"
        Monitor    "Monitor0"
        SubSection "Display"
                Viewport   0 0
                Depth     24
                Modes     "1920x1080_60.00"
        EndSubSection
EndSection   

重启

2.tftp

yum install tftp* -y

vi /etc/xinetd.d/tftp

service tftp
{
    user            = root
    socket_type        = dgram
    protocol        = udp
    wait            = yes
    server            = /usr/sbin/in.tftpd
    server_args        = -s /home/yang/Tftpboot -c    // *
    disable            = no                                        // *
    per_source        = 11
    cps            = 100 2
    flags            = IPv4
}

vim /etc/sysconfig/selinux

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=0
# SELINUXTYPE= can take one of these two values:
#     targeted - Targeted processes are protected,
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted 

centos7
systemctl stop iptables.service  # 若没有服务，允许 yum install iptables-service
centos6:
service iptables stop

centos7:
systemctl start tftp.socket
systemctl start tftp.service
systemctl start xinetd.service
centos6:
service xinet restart

给予tftpboot目录写权限

netstat -nlp |grep 69

3.配置网络

vi /etc/sysconfig/network-scritp/ifcfg-eth0

DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=192.168.3.55
PREFIX=24
GATEWAY=192.168.3.1
DNS1=114.114.114.114