linux vm host

another article: http://www.linuxfly.org/post/320/?1. Pre- clean memory usage ?Free-m2. start cleaning up ??Echo 1 >/proc/sys/vm/drop_caches3. memory usage after cleanup ?Free-m4. complete !To view the number of memory bars command:Dmidecode?|? Grep?-a16? "Memory?" device$ " ?????++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++??????# Sync# echo 1 >/proc/sys/vm/drop_caches?? Echo 2 >/proc/s

Install Oracle 11G Single-instance database on Linux under VM virtual machine1. Environment and pre-installation planning: virtual machines and OS as followsEnvironment: VMware wordstation Ace Edition 6.0.2Operating system: Oraclelinux-r5-u8-server-i386-dvd 3.2GTo install the operating system, it is important to note that there is enough disk space to reserve.My plan is to:The virtual machine allocates 1024

directory and Inode caches, and the default value of 100 means that the kernel will keep the directory and inode caches at a reasonable percentage based on Pagecache and Swapcache. Lowering this value below 100 causes the kernel to tend to retain the directory and Inode caches, and increasing this value by more than 100 will cause the kernel to tend to reclaim the directory and Inode caches.Default setting: 1007)/proc/sys/vm/min_free_kbytesThis file

Tags: Linux AzureAzure Linux VMSKey LoginPrerequisites:Two Linux virtual machines are created on Azure , and the other one is already using the "ssh-keygen-t RSA" command to create the public key. ( If you do not need to modify, directly enter two times, the default save path is "~/.ssh/")Operation steps:will be "~/.ssh/id_rsa.pub" This file is copied to "40.125.

Modify login host information in linux and host modification in linux It usually manages more than 130 Linux physical hosts, so it is difficult to deploy applications to find out the IP information of each host! Therefore, you mus

block I/OAnd read/write ing files)Reference[Root @ server test] # echo 3>/proc/sys/Vm/drop_caches[Root @ server test] # Cat/proc/sys/Vm/drop_caches3 Set/proc/sys/Vm/drop_caches to 3Reference[Root @ server test] # Free-mTotal used free shared buffers cachedMem: 249 66 182 0 0 11-/+ Buffers/cache: 55 194Swap: 511 0 511 Run the free command again. The current used

NIC configuration: Vi/etc/sysconfig/network-scripts/ifcfg-eth0device=eth0Hwaddr=00:0c:29:d4:a4:b1Type=ethernetUuid=45744d6c-8ec4-4c68-9342-384515579b07onboot= "Yes"Nm_controlled=yesbootproto= "Static"Ipaddr= "192.168.1.120"Gateway= "192.168.1.1" netmask= "255.255.255.0" # # #启用/sbin/ifdown eth0/sbin/ifup eth0service netword restart Firewall chkconfig iptables on|off/etc/selinux/config Disable # # # # # # # # # # # # # # # # 1, edit/etc/udev/rules.d/70- Persistent-net.rules file name= "eth0" line

There's nothing to do today. I installed a Linux virtual machine, used to deploy project-specific. But after the system is installed, the use of private shell connection is encountering trouble. Let's talk about the process first and talk about the problems I've encountered. 1. First open the Oracle VM VirtualBox to create a system. Allocate the memory and hard drive you have given. 2. Then download a

VPN is widely used in the current network. In windows, you can refer to the relevant documents to easily build a VPN network, this experiment is based on the VPN setup experiment on the linux platform. The linux Server under two VMS on the experimental platform and the Ip address of a windows host as the client are planned as follows: client 192. VPN is widely us

" launcher. This will automatically run the vmwaretools after each boot. Restart Ubuntu to see how it works! (Note: Vmware-toolbox is not running in the background, do not close after startup)25.PNGVMware Tools is a good thing, but there are side effects, such as: the mouse wheel in the virtual machine is not good enough. We solve this problem, or open the terminal, enter:$ sudo gedit/etc/x11/xorg.confThis command enables the system to open the mouse configuration file/etc/x11/xorg.conf with roo

1.1. The new operating system pings different hosts:Check if the Linux server network segment has etho IP View/Close FirewallView: Service iptables status closed: Service iptables statusClose Setenforce"More References" https://www.cnblogs.com/ftl1012/p/selinux.htmlTo see if the server has SSH services installed1 ps-ef|grep ssh2 telnet-lntup 22Check the IP of the host "real Machine"Win7: Control Panel

There are several ways to deploy Zlinux on Z/VM, and this article describes a quick way to install Redhat Enterprise Linux 6 Update 4 on Z/VM 6.2. 1 Preparation work 1.1 Basic requirements Before reading this article, you need to master the basic Z/VM CP and CMS commands, see resources [3] for Z/

In the previous blog (http://blog.csdn.net/raintungli/article/details/7034005) mentioned in the signal forwarding thread, Attach Listener thread is only the operation of the socket file, Does not perform such as stack analysis, or heap analysis, the real worker thread is VM thread. (i) Start VM thread Jint THREADS::CREATE_VM (javavminitargs* args, bool* cantryagain) { ... Create the Vmthread {tracetime

Article Title: how to use Linux to build a fully automated virtual host (on ). Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Generally, a university provides virtual hosting servi

penultimate line, a directory is mounted to another Linux file server on which Samba is installed in my LAN.All the preceding commands must be run as root.Method 3: Use the shared folder option in the Virtual Machine (VM)Step 1: install Linux in a virtual machineStep 2: select the VM menu -->

=3061726064## JRE version: (8.0_45-B14) (build)# Java Vm:java HotSpot (TM) Server VM (25.45-b02 mixed mode linux-x86)# Failed to write core dump. Core dumps has been disabled. To enable core dumping, try "ulimit-c unlimited" before starting Java again#Shut down a tomcat to request 1G of memory, then the server left 200M of memory, so out of a memory. View shutdown.sh , and found that it was actually called

Since the release of Kali 2.0, there have been frequent problems with installing VMware tools that did not succeed, or prompting the installation to succeed but still unable to drag, copy, and cut files.Today, the new computer installed system, re-download the latest version, Kali 2017.1 discovery is already Kali 3.Tested, the installation of Open-vm-tools replaces VMware Tools with the ability to "automatically adapt to the client" (that is, automati

Nonsense not much to say, direct text process:1, the first is to download the Linux image file (Centos,ubuntu, etc., according to their actual needs to download)Linux image Download (provide a few 32-bit Linux image download, if there are other needs, please download Baidu by yourself)2, open VM virtual machine, OK, th

1. Through the software recommended installation method, to achieve the rapid installation of Linux system.Open the VMware Workstation Pro software, go to the homepage, click the new virtual Machine button,After entering the wizard page, select a typical installation and click the Next buttonSelect the Linux system version image you want to install and click the Next buttonFill in your

Tags: command str view VMW Dev bin mnt will Inux1. Select Install Vmware-tools in the virtual machine, or reinstall2. Create the CDROM folder in the/MNT directoryMkdir/mnt.cdrom3. Attach the/dev/cdrom optical drive to the folder you just builtMount/dev/cdrom/mnt/cdromCheck the/mnt/cdrom directory for vmware-tools.tar.gz compressed files4. Copy the Vm-tools compressed file in the/mnt/cdrom directory to the/tmp directoryCP vmware-tools.tar.gz/tmp5. Swit