First, prefaceThis article is a second article describing the operating parameters of Linux virtual memory, mainly about Oom-related parameters. In order to understand the Oom parameter, the second chapter simply describes what is oom. If this noun is not pressure on you, you can directly into the third chapter, this chapter is to describe the specific parameters, in addition to describing the specific parameters, we quoted some specific kernel code,
After cloning, the VMware virtual machine discovers that the original eth0 of the cloned host will be gone, instead there will be a new Mac Nic Eth1. This article solves how to reasonably change the NIC to eth0.
Ifconfig eth1 determine the MAC address of the new network card.Nmcli con determine the UUID of the new NIC
2Vim/etc/udev/rules.d/70-persistent-net.rulesDelete the relevant information of the original eth0 and change the name of Eth1 to
Configuring VM acceleration on LinuxLinux-based Systems support virtual machine acceleration through, the KVM software package. Follow instructions for installing KVM on your Linux system, and verify this KVM is enabled. In addition to following the installation instructions, be aware of these configuration requirements:
Running KVM requires specific user permissions, make sure are sufficient permi
or incomplete.## Out of Memory Error (os_linux.cpp:2673), pid=5519, tid=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 have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again#
Shut down tomcat and request 1 GB
The Virtual Machine (vm-ware) installed linux deletes the NIC. For details about how to restore the NIC-Linux general technology-Linux programming and kernel information, see the following. The Virtual Machine vm-ware installed linux
-vdiskmanager-x 16 GB "D: \ redhatvm \ Red Hat Enterprise Linux 4. vmdk"Parameter-X indicates that the disk space of the virtual machine is to be extended. The following number indicates the size of the disk to be extended (such as 16 GB, indicating the total disk volume, including the original disk capacity ); finally, the virtual machine to be operatedLinux File.
Note: If the path name contains spaces, it must be enclosed in double quotation ma
=5519, tid=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 , found that it was actually c
Tools/MaterialsLinux Virtual Host. htaccess fileFor Windows hosts, you need to configure the Httpd.ini file to bind subdirectories, and for Linux hosts, you need to configure the. htaccess file.It may be easier to understand this by example, such as you want to do a two-level domain name like wap.201410.com, first to ensure that there is a normal access to the WAP directory under the site root directoryDown
LINUX system boot in VM is slow-Linux general technology-Linux technology and application information. The following is a detailed description. The LINUX system under the VM is very slow to boot, and there is always one or two pla
Tags: src tool ash Ges one VMware links order ret
Click Install VM Tools in the diagram, because my installation is already installed, so the display is reinstall.
Click later will come out a virtual CD-ROM, open the virtual CD-ROM, copy out the VM toolsxxx.tar.gz file to create a temporary folder, after copying in
CP vmwaretools-7.8.4-126130.tar.gz/tmp Cd/tmp/tar ZXVF vmwaretools-6.5.0-11
Here is an example of installing cenOS6.6 if you want a friend who needs Cenos 6.6 iOS file to see my other download for cenos6.6 version detailsThe text is excerpt from the old boy teacher's "Linux and the old boys learn Linux operations," The text of all copyright belongs to the old boy teacher I just practice analysis practice experienceTo view the English version please buy a book or view the old boy or
Article Title: Disable the linux voice and text interface resolution in the vm. 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.
The value range of bell-style is none, visible, and a
After the VM is restarted, the smb server in linux cannot be used. Very troublesome. -- Linux general technology-Linux technology and application information. For details, refer to the following section. After the VM is restarted, the smb server in
In vmware linux, after a new disk is added, refresh the disk, scan the SCSI bus again, and add the SCSI device without restarting the VM.
[Root @ centos4 scsi_host] # ls
Host0 host1 host2
[Root @ centos4 scsi_host] # fdisk-l
Disk/dev/sda: 21.5 GB, 21474836480 bytes, 41943040 sectors
Units = sectors of 1*512 = 512 bytes
Sector size (logical/physical): 512 bytes/512 bytes
I/O size (minimum/optimal): 512 bytes
Vmware Server can vmware-workstation-full-the virtual machine from the official website http://www.vmware.com/cn/or from the network address 10.0.1-1379776 version, as well as the official CentOS website www.centos.org download out, of course you can also choose Redhat,suse, Red Flag, Fedora,ubuntu and so on, in short, is a kernel, this stable, secure, Multi-threaded, open source and free systems that can handle multiple concurrency can be down everywhere. Now is not to let you do
On their own computer or have a own virtual machine is more convenient, before using Ubuntu, found that the card is not.Now, with a lightweight lubuntu, the speed has improved a lot.1. Download Lubuntu, install.2. Enter, set root password, initialize root password, sudo passwd3. Install Vm-tools, unzip to the specified directory, and install it well. Perl vmware-install.real.pl3. Open Ssh,sudo Apt-get Install Openssh-server4. Open the shared folder, o
1. One months ago because I have been developing PHP site, so the Linux thrown away for a long time without touch, in recent days to pick up some of the Linux,But when I set up VM virtual machine due to the experiment done at home did not finish, copied to the USB flash drive Thinking company then do not imaging, the system is intact boot, but my eth0 nic is not:
Test preparation: One Installation server (CentOS5.5 under the vm) will use the following kits on the Installation server: dhcp, tftp, httpd first: is set on the Installation server [root @ localhost ~] # Yum-yinstalltftp-serverdhcphttpd check installation kits [root @ localhost ~] # Vie
Lab preparation: One Installation server (CentOS5.5 under the vm)
The kit used on the Installation server is dh.Cp, TFtp
Recently, nginx has been installed successfully on ubuntu, and only rewrite has not been tested. because there are multiple websites on the server, I am afraid to try it on the server. I checked some articles on the Internet and wrote another article for trial. The configuration of the virtual host on nginx is basically similar to that on apache. Notes
Recently, nginx has been installed successfully on ubuntu, and only rewrite has not been tested. bec
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