Daily Linux Operations

1.use Root Account
http://blog.csdn.net/sunxiaoju/article/details/51993091
http://blog.csdn.net/gongchenyu/article/details/51337339
2.chrome
Http://www.linuxidc.com/Linux/2016-05/131096.htm
http://blog.csdn.net/lihaoyang11/article/details/54572565
3.vmware
Http://www.cnblogs.com/h2zZhou/p/5440271.html
4.kvm
http://blog.csdn.net/c80486/article/details/42836169
5.flash
http://blog.csdn.net/junbujianwpl/article/details/51587847
6.hadoop
Http://www.cnblogs.com/NextNight/p/6703362.html

SSH-KEYGEN-T RSA
Ssh-copy-id [email protected]
7.putty
Paste: Single mouse wheel, this is the function of GNOME, not putty unique features
8.CENTOS7 Support Ifconfig
Yum provides ifconfig
Yum Install Net-tools
9. Network operation:
View Geteway:netstat-rn
View DNS cat/etc/resolv.conf
Centos7 setting Hostname:hostnamectl--static set-hostname Centos7

Configure Gateway: Route add default GW 192.168.122.1 dev eth0

(This problem has been tossing for a long time) the CentOS NTA mode sets the static IP, cannot access the external network because the gateway is not correct, use the following command to set up:
Route add default GW 192.168.122.1 dev eth0
The above command is not valid after restarting
So modify the/etc/sysconfig/network file persistence settings gateway=192.168.122.1, see: http://blog.csdn.net/jcxch/article/details/48632761

10. Network Card settings
Type=ethernet
Bootproto=static
Defroute=yes
Peerdns=yes
Peerroutes=yes
Ipv4_failure_fatal=no
Ipv6init=yes
Ipv6_autoconf=yes
Ipv6_defroute=yes
Ipv6_peerdns=yes
Ipv6_peerroutes=yes
Ipv6_failure_fatal=no
Ipv6_addr_gen_mode=stable-privacy
Name=eth0
uuid=173323da-69e3-4117-abf0-d04b03bd0a5a
Device=eth0
Onboot=yes

ipaddr=192.168.122.11
netmask=255.255.255.0
geteway=192.168.122.1
dns=192.168.122.1

11. Turn off the firewall and turn off SELinux
Systemctl Stop Firewalld.service
Systemctl Disable Firewalld.service
Sed-i ' s/selinux=enforcing/selinux=disabled/'/etc/selinux/config
grep selinux=disabled/etc/selinux/config
Setenforce 0
12. Test Hadoop execution
Bin/hdfs Dfs-put/etc/profile/profile
Bin/hadoop jar Share/hadoop/mapreduce/hadoop-mapreduce-examples-2.8.1.jar Wordcount/profile/out
Bin/hdfs dfs-cat/out/part-r-00000
13. Extract Zip, file name is Chinese when garbled
Unzip-o CP936 Yn.zip
14.vpn Client
https://hadler.me/linux/forticlient-sslvpn-deb-packages/
https://hadler.me/linux/openfortigui/
15.mariadb
Http://www.centoscn.com/mysql/2014/0919/3778.html

[Mysqld]
Default-storage-engine = InnoDB
Innodb_file_per_table
Max_connections = 2048
Collation-server = Utf8_general_ci
Character-set-server = UTF8
Lower_case_table_names=1

Update user set Password=password (' root ')
Flush privileges;

The solution of 15:ubuntu VI to the above-and-below change ABCD problem

Error problem: VI next to the next key display as ABCD problem

Workaround:

As long as the following two commands can be executed in order to solve the Ubuntu under the VI Editor direction key to the letter problem.

I. Execute command sudo apt-get remove Vim-common

Two. Execute command sudo apt-get install vim

16.git Client Configuration User name password
Create a file in the ~ directory:. netrc
The contents are:
Machine Git.gongsibao.net
Login [email protected]
Password ******

The. NETRC permissions can only be 600
chmod. netrc

Daily Linux Operations