1, install QT, enter the terminal of the CentOS system, execute the following order sequentiallychmod +x Qt-opensource-linux-x64-5.5.1.run./qt-opensource-linux-x64-5.5.1.run
2, the author CentOS 7 64, Installation complete Qt5.5.1. Create a new
(1) in the BIOS set to boot from the CD, put the first CD, into the installation page,
You can enter the graphics installation mode by tapping the carriage directly:
Generally do not use: in the "Boot:" After the input text, and then press enter
Spark 2.2 needs to run in the Java environment, is not any version can do. Not Before the spark official website to see the need to run the environment is jdk8+, so I installed Jdk9, but in the JDK 9 environment did not install successfully, run
1, CentOS7 to modify the host name
1) Hostname host name
Eg:
Hostname ityangs
Note: This way, only the temporary host name can be modified, when the machine is restarted, the host name changes back.
2) hostnamectl set-hostname xxx
Eg:
Hostnamectl
VMware To configure the CentOS virtual machine as Host-only network mode
Today suddenly want to host-only mode configuration process record down, also convenient to have the need of friends reference. This blog post is my first blog, poorly written
Recently their Redhat python upgraded Python to 2.7, but found that Yum can not use, found a workable solution, we can refer to, reprinted a Netizen's article, the pro-test effective.
Reproduced from: http://www.cnblogs.com/theitnotes/p/4162882.html
Optimize content:
(1. Set history history
(2. Add ordinary users, set sudo permissions
(3. Prevent root remote user from logging in
(4. Modify Remote port
(5. Streamlined boot server
(6. Close SELinux
(7. Configure Iptables
(8. Modify the maximum
Experienced hardships in VirtualBox installed Centos7, habitual played a day ifconfig, the results found that the command is invalid, and then after a series of checks found no ifconfig this package,
So to install a ifconfig package with Yum, it
1, download the JDK and Tomcat installation package to the/OPT directory, use the command: Wget installation package in the network address;
2, use the command decompression installation package: TAR-ZXVF package name;
3, to extract the file to be
[Root@localhost ~]# Yum Install Libtool
Loaded Plugins:rhnplugin, security
This system is not registered with RHN.
RHN support would be disabled.
Setting up Install Process
Nothing todo
Solution:
1, into the/etc/yum.repos.d/directory.
Enter at
1. Vi/etc/sysconfig/iptables
Way One
Add the following content
-A input-m state--state new-m tcp-p TCP--dport your port-j ACCEPT
Mode two/sbin/iptables-i input-p TCP--dport your port-j ACCEPT/etc/rc.d/init.d/iptables Save
Reboot the firewall
1. Add a new network adapter in the virtual machine according to the following two pictures
Two. See if the NIC is recognized!Vi/etc/udev/rules.d/70-persistent-net.rules #可以看到有两块网卡!
Copy eth1 Card's MC address, next we want to create ifcfg-eht1
First determine how the connection must be set to bridge. Type ifup eth0 reboot the system or over a period of time wait for the system update type ifconfig see inet address changed, not 127.0.0.1 then use Xshell connection can be
The above is a
1. Understanding the definition of the kernel and the significance of upgrading the kernelThe operating system is a supporting software that deals with hardware and provides human-computer interaction. The Linux kernel is responsible for managing
Update the System
Copy and execute the following command to update the critical components of the system:
Yum Update
After the update completed, we need to restart the system using the following command:
Reboot
Install the Dependencies packages
Blog of the source self
http://www.yingzinanfei.com/2016/09/22/centos-anzhuanggaobanbengit/
CentOS6.5 comes with a git version of 1.7.1
Uninstalling your own git
# yum Remove gitDownload the latest version of Git
# wget
Category: LINUX
As we all know, after the completion of the installation of CentOS, is not compiled environment, I hang up the CD-ROM, manually installed to solve the dependency of dozens of, in the configuration of some software, or often
1) server:192.168.3.56
2) client:192.168.3.57
Server End:
Setsebool-p Allow_rsync_anon_write onSetsebool-p Rsync_server on
A
Cat/etc/xinetd.d/rsync
# Default:off
# description:the Rsync server is a good addition to an FTP server, as it \# allows CRC
Date Time Window
Date-s ' 2015-02-02 10:10:00 ' Change month day hour seconds
Date-s 10:00:02 Only change time does not change month
Clock-w Write System time
Hwclock Synchronizing BIOS time
Service Ntpdate start to turn on network time
There is another 5.5 under the installation of http://blog.livedoor.jp/extension/archives/50249503.html, but I did not succeed (~. ~
The R language is mainly used for statistical analysis, drawing of the language and operating environment. Official
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