AIX Study-AIX user resource access restriction configuration, aix-aix
AIX Study-AIX user access system resource limit Configuration
The system resource limits used by Aix users include
We know that the VPS server is a virtualization technology, build VPS server virtualization software and new cloud architecture solutions are many, they have advantages and disadvantages, therefore, different VPS Server service providers may use different virtualization technology to build VPS servers, Similarly, the c
First look at the VPS is what: plain English is that it is from a physical server divided into multiple ' virtual ' server, has its own independent public network IP, independent memory, independent CPU, independent operating system configuration, independent hard disk space, etc., can be convenient to restart the server alone, its own installation program, Like a smaller version of the physical server, use it to do multiple virtual hosting, Enterpris
VPS Exclusive host has been small and medium enterprises and high-end webmaster users of the best choice to build a station, and, with the cloud computing technology application and development, the VPS host prices more civilians, making more people contact with VPS host, and often use VPS host. At the same time,
Eduvps is a dedicated to learn and provide a free VPS host, because it is purely personal to provide and focus on the use of learning tests, so even if the application of the Eduvps free VPS, there are not open machine, can not connect VPS host and so on, And most of the VPS host applications have different problems in
If you think that the virtual host cannot meet your needs, want more resources, and feel that the whole machine is a waste, the VPs server may also be suitable for you.
In terms of price, the VPs host is between the virtual host and the host lease. The performance of the website is more stable than that of the virtual host. users on the VPs do not compete for
, this value may be the IP address of the proxy server, which may be empty or random.
Http_x_forwarded_for can be arbitrarily modified. Most proxy servers are transparent proxies. That is to say, this value is set to the IP address of the original visitor.
2. CC attacks
Sort by processing efficiency from high to low.
(Because this article is for VPs servers, VPs is simply a low-end alternative to servers, a
VPS or server often need VPS or server often need to regularly backup data, scheduled to restart a service or scheduled execution of a program and so on, generally in Linux use crontab,windows below is the use of scheduled tasks (win is the graphical interface setup is relatively simple), The following mainly describes the installation and use of crontab on Linux vps
I personally feel that this platform has poor autonomy, whether it is for customers or carriers. For customers, this platform is a virtual operating system and cannot be set on their own in many aspects. It is typical of Windows virtual memory management, which is not good. For sellers, the operation of this platform is inseparable from the support of swsoft. Of course, small-scale operators do not have enough technical strength to maintain the platform, but they must still be unable to do witho
Personally feel the platform is less autonomous, whether it is to the customer or to the operator. For customers this platform is a virtual operating system, many aspects are not autonomous settings, typically Windows virtual memory management, very bad. For businesses, this platform can not operate without swsoft support, of course, the smaller operators do not have enough technical strength to maintain, it is certainly inseparable from this price is not the "support" of the Philippines, but fo
Client-side method to back up data
1, install and configure Dropbox Linux client
Install Linux command line version Dropbox on VPS:
32-bit:CD ~ wget-o-"https://www.dropbox.com/download?plat=lnx.x86" | Tar Xzf-64-bit:CD ~ wget-o-"https://www.dropbox.com/download?plat=lnx.x86_64" | Tar Xzf-After the download is complete, run Dropbox
~/.dropbox-dist/dropboxd
The first time you run the command, you are prompted to access the URL, and you can bind t
Based on the NTP network pair,
Java code
The code is as follows:
#date-R
November 18, 2012 Sunday 19:33 23 cstlinux The tool for using network pairs under the system is ntpdate, and if Ntpdate is not installed, ntpdate must be installed: under CentOS:
Java code
The code is as follows:
#yum-y Install ntpdate NTP
Under Debian or Ubuntu:
Java code
#sudo apt-get install-y ntpdate ntpntpdate
After installation, you can use Ntpdate to update the Linux system (when we use Windows Time server
I. Origin of the problem
Installing the deployment nginx-1.4.1 in Aix a few days ago reports the following error:
# Cd nginx-1.4.1#./ConfigureChecking for OS+ AIX 1 0004f60bd400Checking for C compiler... not found
./Configure: Error:C compiler CC is not found#Ii. "Vomiting AIX"
I believe anyone who has used AIX knows t
Question: How are you sure the machine will run a 64-bit kernel?
Answer: Running the 64-bit kernel requires 64-bit hardware. For AIX 5.2, all IBM eserver pseries 64-bit hardware can run 64-bit or 32-bit cores. The order is as follows:
#/usr/sbin/bootinfo-p
When running on a machine that can only run a 32-bit kernel, the string "32" is returned. If the machine can run a 64-bit kernel or a 32-bit kernel, the command returns "CHRP".
In
VPS or server often need VPS or server often need to regularly backup data, scheduled to restart a service or scheduled execution of a program and so on, generally in Linux use crontab,windows below is the use of scheduled tasks (win is the graphical interface setup is relatively simple), The following mainly describes the installation and use of crontab on Linux vps
AIX study--aix NIC Configuration management (Ent0, En0, et0)1. Check the AIX system card information:[[email protected]/] #lsdev |grep etEn0 Available 1l-08 standard Ethernet network Interfaceen1 Available 14-08 standard Ethernet Network Interfaceen2 Defined 1d-08 standard Ethernet Network Interfaceent0 Available 1l-08
Tags: a bare device created in Aix that is a logical volume in AixA bare device created in Aix is a logical volume in AixThe creation method is as follows:Syntax: Mklv-t raw-y [Lvname] [vgname] [LPs]For example, to create a bare device required by Oracle:Mklv-t raw-y Lv_sysaux Datavg 3Mklv-t raw-y lv_systems aux datavg 3Mklv-t raw-y LV_CTL1 Datavg 1Mklv-t raw-y LV_CTL2 Datavg 1Mklv-t raw-y lv_redo1 Datavg 1
AIX study--aix NIC Configuration management (Ent0, En0, et0)1. Check the AIX system card information:[[email protected]/] #lsdev |grep etEn0 Available 1l-08 standard Ethernet network Interfaceen1 Available 14-08 standard Ethernet Network Interfaceen2 Defined 1d-08 standard Ethernet Network Interfaceent0 Available 1l-08
AIX online file system expansion, aix online File expansion
All said that the AIX operation is convenient, and it is not a blow.
# Chfs-a size =-1G/homeFilesystem size changed to 39845888 # chfs-a size = + 1G/usrFilesystem size changed to 10485760 # df-gFilesystem GB blocks Free % Used Iused % Iused Mounted on/dev/hd4 20.00 11.81 41% 38136 2%/dev/hd2 5.00 2.86 43
If we start to modify the default port, even if we need to guess and crack the password, we need to find the port, at least to increase the difficulty of the VPS intrusion, in this article, the old Chiang will share how to modify the VPS default SSH port.
The first step, vi/etc/ssh/sshd_config
Using Xshell or Putty login VPS, the default
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.