Use Nginx and iptables for access control (IP and MAC)
The previously configured server is public to the entire intranet. Besides indirectly accessing various services through nginx on port 80, you can also bypass nginx, it is wrong to directly access the corresponding service by using IP addresses and ports, so we nee
In traditional UNIX systems, DAC protection measures include file access mode and access control list, while MAC provides Process Control and firewall.
The TrustedBSD Program combines the core FreeBSD release with trusted security components that comply with the information technology security assessment standard (ITSEC. These components provide a large number of
Because it is cumbersome and limited to install Oracle on a Mac, you always want to install the database on the virtual machine and then access it through the client. Last night oracle11g installed in the virtual machine Vmvare fusion5 XP, in this week will be the basis of the review, I would rather stay up and sleep less.It's easy to believe that Oracle is installed on Windows XP, and there's a lot of tuto
Host system: Mac OS X 10.8.3
Virtual Machine System: Ubuntu 12.04.2 lts
Virtual Machine: virtualbox 4.2.10
Objective: To enable the host to freely access the virtualbox Virtual Machine SVN server when the network is disconnected
Method: Step 1: Open the main interface of virtualbox, choose virtualbox in the upper left corner of the screen> preference Settings> network> Add a host-only network vboxnet0 b
Using the ipad to connect to the win system is not new, we can use software such as TeamViewer and onlivedesktopplus, so how can the win system show that the Mac system also retains all of Apple's unique iOS touch gestures and copy and paste? That's the Parallelsaccess tool that we recommend today, and it was released in full in 2013-08-28. We need to register the account at the https://access.parallels.com
on the server that needs to be accessed for authorization. SSH1 uses RSA (RonRivest, AdiSHamir, LeonardAdleman) encryption keys, SSH2 useDSA (digital Signature algorithm, digitally signed algorithm) key protection connection and authentication. Both RSA and DSA encryption algorithms are non-symmetric encryption algorithms.The so-called "SSH Public key authentication Password-Free login authentication mechanism ", the principle is as follows:
(1) The SSH client stores the SSH public key
ITerm2 is a free, one-of-a-kind tool for termial enhancement.You can download the latest version here.Typically, ITERM2 accesses remote Linux using SSH, as is the case with Termial, as follows:ssh Then enter the access password. Of course, there are times when you need to specify access ports.ssh -P If the operation under ITerm2 is the same as the termial, what do I do with it?Of course ITerm2 has its own f
Mac tips-it takes some time for Mac (MACOs Pro) to easily access Windows network sharing. In a word, it's "great "! Of course, there are also some unpleasant times. For example, if the keyboard and keyboard position have changed, use the eclipse shortcut key to make my fingers twist. If you want to watch avi and mkv, y
Demand
Mac and Win7 virtual machines access each other and can ping the
Win7 virtual machines can surf the internet
Method:The virtual machine requires two NICs (the default is a piece), a piece of internet via NAT, a piece of communication with the Mac host via Hostonly.1. Add a NIC2, configuring NATAnd then3, Configuration HostnolyFirst, confi
Shenzhou Digital switch uses MAC-IP access control list function to realize the binding of multiple Mac-ip under single port
1. Description:
A company office network, the core switch for the digital Shenzhou dcrs-5950-28t, according to the office floor division of several VLANs, for each floor divided into different IP segment and set the gateway. Interface Eth
Tag:httpioosarsp Data divon code The Http://baike.baidu.com/view/69334.htmMAC (Media Access Control) address, or MAC location, is used to define the locations of network devices. In the OSI model, the third layer of the network layer is responsible for the NBSP;IP address, while the second layer of data link is responsible for MAC addresses. Therefore, a host wi
PHP Novice in the Mac system to build apache+mysql+php development environment (according to this blog to operate: http://my.oschina.net/joanfen/blog/171109?fromerr=xvCsafCe), After the installation configuration MySQL finished, log in MySQL, error: Mac error 1045 (28000): Access denied for user ' root ' @ ' localhost ' (using password:no), toss for a long time,
Author:Laocai
At present, ISPs in many places use the MAC function, that is, to record the MAC address of a machine in your LAN to restrict the sharing of multiple computers. What is a MAC address? How can I cope with MAC Internet access
1. Mac remote connection to win7, with dedicated remote connection tool: Remote Desktop Connection, such as entering an IP address (you need to enable remote connection in win7 ),
The connection is the same as the remote connection between Windows:
2. How does one Access Windows shared folders on Mac? The method is simple. Click "go to server" in the "Finde
Front-end development often encounters situations where servers are inaccessible due to cross-domain access. Before the BS model, the front and back end are a human development, cross-domain problems caused by the development of obstacles is not obvious, but now the front-end framework is thriving, many times into the development of CS mode, but the browser is inherently cross-domain restrictions, resulting in the development, In particular, the indiv
1.27 Java Basics Summary ① access modifier access rights ② classes and methods basic declaration and useMember variables (properties)Adding member variables to the ① classAccess modifier type variable name private String name② instantiating an ObjectCall the constructor method class of the class to construct the object, Teacher one = new Teacher ();Static can be called directly, because static is class-leve
1. Problem Description
The IP address on the Huawei switch is bound to the MAC address to establish an access control list. Only approved PCs can access the network.
2. Solutions
Create an access control list
> System-view: enters system mode.
] Acl number 6000 create an acc
, some devices in the network can be found to be abnormal data communication. For example, a device sends packets over multiple IP addresses.
In this case, you can use the show mac-address-table command to view the switch port it uses, and you can turn off this port. But what if this port is connected to a hub and the hub is connected to many other devices?
One way is to filter data from a router or switc
This article describes how to configure a vswitch for a CISCO 3550 router and how to configure access control for a MAC address.
In network management, users often encounter this situation: some users violate management regulations and modify their own IP addresses without permission to access restricted resources. Such behavior not only undermines information se
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