Experiment 0 4 : Samba Share Experimental ObjectivesComplete the configuration of the Samba share on Linux and verify the configuration. Experimental requirementss Amba Anonymous sharingWorking Group Set to TarenaShare name set to ToolsShare
(a) Port occupancy query Common commands:
Lsof
Netstat
Example:
Lsof-i:80
Netstat-an | grep 80
Netstat-an | grep LISTEN querying the port of native listening
(ii) Crontab Scheduled TasksCommon commands:
Each process has its own private user space (0~3G), which is not visible to other processes in the system. The highest 1GB kernel space is shared by all processes and the kernel. In addition, the "User space" of the process is also called the
Restore deleted files in the ext3/ext4 File System Under centos 6.x
Ext3/ext4 file systems do not support restoring deleted files, so you should be careful when deleting files as rm-I. However, there is a tool that may be helpful, but it is
Set the CentOS service startup sequence
As we know, in the CentOS system, the startup script of the system service is generally stored in the/etc/init. d directory. Different boot modes correspond to the/etc/rcx. d directory respectively. In fact,
[RK_2014_0910] the possible cause of incomplete serial data reception in serial programming is that rk_2014_0910 is incomplete.
Scenario 1]
[Ubuntu14.04 --> Win8]
[Environment description]
PC1: Win8, run serial port debugging tool:
Install and Configure FTP in CentOS71. automatically install VSFTP
Open the CentOS terminal, run the su command, enter the password, and obtain the Administrator permission. Run yum install vsftpd to automatically install VSFTP.
There will
Kafka cluster installation and resizing
Introduction
Cluster installation:
I. preparations:
1. Version introduction:
Currently we are using a version of kafka_2.9.2-0.8.1 (scala-2.9.2 is officially recommended for kafka, in addition to 2.8.2 and 2.10
Configure the SFTP environment for non-SSH users in Linux
In some environments, the system administrator wants to allow a very small number of users to transfer files to Linux machines, but does not allow SSH. To achieve this goal, we can use SFTP
Use Zabbix to dynamically monitor disk I/O
Recently, I/O Sub-system related information has been read. I/O of each server needs to be monitored, especially the disk I/O of the MongoDB database server, because the disk names of each server may be
Install PyPy on CentOS for simple testing
I have never paid attention to pypy before, but I have seen that pypy on rasperry pi works well. I also tested it on the server.
My OS is CentOS 6.4, 64-bit. An error occurred while installing the diameter
Configure the Nagios alarm Interval
Configure the Nagios alarm Interval
Host_name: the host defined in the host configuration file hosts. cfg.
Check_command: commands defined in the commands. cfg file or in nrpe. cfg;
Max_check_attempts: Maximum
Knowledge about enabling and configuring KeepAlive
Why do I want to talk about KeepAlive?
I encountered a problem in my recent work and wanted to record it. The scenario is as follows:
It can be seen that the user accesses the lvs vip through the
Spark 1.0 Development Environment Construction: maven/sbt/idea
Because I was not familiar with maven and sbt, I compiled both methods. Below is a record of the problems encountered during compilation. Then we will introduce how to use IntelliJ IDEA 1
Hadoop2.0 nn ha experiment records
1. Introduction to HA in Hadoop2.2.0
NameNode (NN)DateNode Abbreviation: DNJournalNode (JN)Zookeeper Abbreviation: ZK
From the preceding topology, we can understand the general architecture of HA:
01. Use shared
Hadoop-2.3.0-cdh5.1.0 pseudo distribution installation (based on CentOS)
I. Environment
Operating System: CentOS 6.5 64-bit Operating System
Note: For Hadoop2.0 and later, jdk 1.7 is used. For Linux, uninstall and reinstall jdk.
:
It is time to split Linux into two based on the load type.
Desktop workloads and server workloads have different actual needs. Why do we have to use the same release to provide necessary support for both of them?
Over the past few decades,
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