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Topic: Access control list

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In the News (Wed 24 Apr 19)

  Access control list - Wikipedia, the free encyclopedia
ACLs cannot implement all of the security measures that one might wish to have on all systems, and a fine-grained capability-based operating system may be a better approach, with the authority transferred from the objects being accessed to the objects seeking access — allowing for much finer-grained control.
ACL is an abstract way to model and thus discuss the protection of resources in general.
Access lists are used to control both inbound and outbound traffic, and in this context they are similar to firewalls.
en.wikipedia.org /wiki/Access_control_list   (414 words)

 Access control list   (Site not responding. Last check: 2007-10-07)
The list is a data structure, usually a table, containing individual users or groups rights to specific system objects, such as a program, a process, or a file (in Microsoft-speak each entry in the ACL is an access control entry (ACE)).
The ACL is a concept, it is implemented differently by various operating system, although there is a POSIX standard.
ACLs have been proven to be insecure under certain conditions and capability[?] is considered a better control, with the authority transferred from the objects being accessed to the objects seeking access - allowing for much finer-grained control.
www.findword.org /ac/access-control-list.html   (538 words)

 Access Control List   (Site not responding. Last check: 2007-10-07)
ACL ID - An ACL ID is a number from 1 - 99 (for a standard ACL) or 100 - 199 (for an extended ACL) or a character string.
The options at the ACL configuration level and the syntax for the ip access-group command are the same for numbered and named ACLs and are described in "Configuring Standard Numbered ACLs".
The options at the ACL configuration level and the syntax for the ip access-group command are the same for numbered and named ACLs and are described in "Configuring Extended Numbered ACLs".
www.foundrynet.com /services/documentation/xmr_user/ACL-new.html   (7014 words)

 Access Control List Help   (Site not responding. Last check: 2007-10-07)
Access Control List allows you to assign permissions for users or user groups to access portal resources, such as user groups, portlet applications, and portlets.
Access levels may also be inherited through membership in a user group.
Access rights for a resource returned to internal control occurs can be set through Access Control.
www-306.ibm.com /software/genservers/portal/library/enable411/InfoCenter/help/acl.html   (1591 words)

 Access Control List   (Site not responding. Last check: 2007-10-07)
Flow-based ACLs are useful when a very large number of unique ACLs are defined and these ACLs exceed the Content Addressable Memory (CAM) memory of a given module, but a subset of the defined ACLs will be used at any given time on a module.
However, once you configure an ACL and apply it to a port, the default action for that port is to deny all traffic that is not explicitly permitted on the port.
The number of CAM entries listed for the ACL itself is the total of the CAM entries used by the ACL's entries.
www.foundrynet.com /services/documentation/ecmg/ACL-new.html   (9287 words)

 Access control list: Facts and details from Encyclopedia Topic   (Site not responding. Last check: 2007-10-07)
ACLs cannot implement all of the security measures that one might wish to have on all systems, EHandler: no quick summary.
A router is a computer networking device that forwards data packets toward their destinations through a process known as routing....
In computer systems security role-based access control is an approach to restricting system access to authorized users....
www.absoluteastronomy.com /encyclopedia/a/ac/access_control_list.htm   (1163 words)

 Define access control list - a definition from Whatis.com - see also: ACL   (Site not responding. Last check: 2007-10-07)
An access control list (ACL) is a table that tells a computer operating system which access rights each user has to a particular system object, such as a file directory or individual file.
Each ACL has one or more access control entries (ACEs) consisting of the name of a user or group of users.
At Stanford University, access control lists are explained as part of an Andrew File System (Andrew file system) under a UNIX system.
searchsecurity.techtarget.com /sDefinition/0,,sid14_gci213757,00.html   (350 words)

 Cisco Tips - Access Control List Types   (Site not responding. Last check: 2007-10-07)
As you create ACLs you assign a number to each list, however, each type of list is limited to an assigned range of numbers.
The most common use of the Extended IP access list to is create a packet filtering firewall.
If you only use this access list you have totally accomplished limiting your users from doing nothing more on the internet than just be able to browse from website to website.
www.manucomp.com /cisco_tips/access_control_list_types.html   (749 words)

 Access control list at opensource encyclopedia   (Site not responding. Last check: 2007-10-07)
It refers to a means of determining the appropriate access rights to a given object given certain aspects of the user process that is requesting them, principally the process's user identity (in POSIX, uid).
These entries are known as access control entries (ACE) in Microsoft Windows operating systems.
ACLs cannot implement all of the security measures that one might wish to have an all systems, and a fine-grained capability-based operating system may be a better approach, with the authority transferred from the objects being accessed to the objects seeking access — allowing for much finer-grained control.
www.wiki.tatet.com /Access_control_list.html   (298 words)

 Access control list (ACL) attributes
Access control lists (ACLs) define access to objects and attributes in the AS/400 Directory Services LDAP directory.
If the user is not listed on the ACL, and is not a member of any listed access group, then the user receives permissions listed under the ACL group "CN=Anybody".
The scope of a propagated ACL is from the explicitly set propagating ACL down through the directory hierarchy until another propagating ACL is found.
www.redbooks.ibm.com /pubs/html/as400/v4r5/ic2924/info/RZAHYACAPR.HTM   (1218 words)

 File System Access Control Lists
This means that ACLs cannot be enabled on the root file system after boot.
ACLs enabled, because you can shoot your feet quite nastily if you enable ACLs, then disable them, then re-enable them without flushing the extended attributes.
ACLs on a file system, they should not be disabled, as the resulting file protections may not be compatible with those intended by the users of the system, and re-enabling ACLs may re-attach the previous ACLs to files that have since had their permissions changed, resulting in other unpredictable behavior.
www.freebsd.org /doc/en_US.ISO8859-1/books/handbook/fs-acl.html   (544 words)

 Using access control list - LinuxQuestions.org
A team is working in a project, all member should have read access to all files, but only one member could modify a particular file at a time, and that member could transfer the permission (to modify) to other member.
Giving a group read access to a file is easy, but changing the ownership of a file requires root access.
Using RCS or another revision control system, the person checking out a file will lock it while they are editing to prevent two people from modifying the file at the same time.
www.linuxquestions.org /questions/showthread.php?p=2203078#post2203078   (874 words)

 PAC: PacAccsCtrlLis Access Control List Class
When an AccessFor access inquiry is made, this list is searched from beginning to end (head to tail) for the first entry granting access.
The first entry encountered that does grant access is considered to be the access granted by the list and the search is stopped.
If no access control entry in the list grants access, no access is granted by the presenting PacAccsCtrlLis object, which is considered to be a "does not apply" response.
www.grc.nasa.gov /WWW/price000/pac/htm/pacaccsctrllis.html   (325 words)

 Access Control List
An ACL is a list of all the people who can read from, write to, and/or execute a particular file in your account.
To view the ACL for a file, use the getacl command by typing at the Unix prompt getacl filename (for example, getacl quiz1).
When you assign another person the rights to access a file, make sure to tell him or her the filename and the fully qualified name of your home directory.
www.temple.edu /cs/unix/acl.html   (573 words)

 Access Control List in .NET
Security enables you to provide access to a specified user after the user is authenticated and authorized to access the resources in your web application.
The Access Control List is used in the authorization process.
Authorization is the process that enables to determine whether a particular user can be given access to the resources that the user requests.
www.awebreview.com /archives/2005/05/access-control-list-in-net.html   (245 words)

 16 ACL (Access Control List) Management
The Access Control or authorization mechanism in WANdisco for CVS Enterprise Edition is based on the concept of a set of valid principals with adequate privileges to access a secured resource.
It is used in the ACL to restrict access to a specific client network, subnet or a machine.
If the user is allowed access to ALL of the resources via at least one principal per resource, then user is allowed to execute the CVS command else the command is denied.
www.wandisco.com /techpubs/cvsmanual/node16.html   (1493 words)

 Access Control List MIB
An access control list (ACL) specifies who and what is authorized to access BEA Tuxedo system objects.
It defines the objects controlled by the ACL facility.
The Access Control List MIB, as a whole, specifies the principals and access control lists for Tuxedo applications services, application queues, and events.
e-docs.bea.com /tuxedo/tux90/snmpmref/6aclmib.htm   (303 words)

 Access Control List MIB
An access control list (ACL) is a list that specifies who and what is authorized to access TUXEDO system objects.
The ACL MIB defines the objects controlled by the ACL facility.
A comma separated list of group identifiers (numbers) that are permitted access to the associated entity.
e-docs.bea.com /manager/mgr20/conref/aclmib.htm   (776 words)

 Access Control Lists Revision - Cisco Certification
Once a packet matches an ACL statement no other checks are made, it is permitted.
Protocol ranges are used in ACL statements to deny specific protocols.
Named access control lists are another way of creating ACLs, any example follows.
www.nikmakris.com /cisco_access_control_lists.asp   (323 words)

 MacSlash | Mac OS X Access Control List (ACLs)
And, Apple uses ACLs to control access to the Keychain Services [apple.com], so its not like they're un-aware of their usefulness.
Once a regular user has access to a shared lib in many systems, they have access to it's memory space, including the bit used by an admin user.
The lack of ACL's is the single greatest factor that prevents Mac OS X from being deployed in environments where widely-distributed access needs exist.
macslash.org /article.pl?sid=03/11/27/1122200   (2367 words)

 Access Control List Lab
Access Control Lists (ACLs) can be used to selectively block IP traffic to provide a rudimentary firewall.
Create two IP extended access lists for the input and output of your gateway router’s ethernet interface to your team VLAN and apply to your ethernet or fast ethernet port with the following security policy:
Hosts on your VLAN should generally be able to access services outside your VLAN provided the services are not outside the FSU network.
www.cs.fsu.edu /reference/itl/labs/acl/acl.htm   (1651 words)

 Cacls - Modify Access Control List
Access Control Lists apply only to files stored on an NTFS formatted drive, each ACL determines which users (or groups of users) can read or edit the file.
When a new file is created it normally inherits ACL's from the folder where it was created.
The /D option will deny access to a user even if they belong to a group that does have access.
www.ss64.com /nt/cacls.html   (510 words)

 Node Access Arbitrator | drupal.org   (Site not responding. Last check: 2007-10-07)
The Node Access Arbitrator is an experimental module API designed to allow multiple node access systems to work together.
This is a second API module (that probably should be folded into the arbitrator) that implements Access Control Lists.
A demo module that provides node access control to nodes based upon workflow state.
drupal.org /node/55594   (239 words)

 Enterprise Java Community: General J2EE : Application Access Control List
They 'needed' fine grained access control for every screen element (forms and content) based on user roles.
This article examines how to create a controlled and easy to use reporting environment for your organization leveraging Library and Template features in BIRT, the Business Intelligence and Reporting Tools project from Eclipse.
The Application Server Matrix is a detailed listing of J2EE vendors and their application server products, with information on latest version numbers, J2EE spec support and licensing, pricing, platform support, and links to product downloads and reviews.
www.theserverside.com /news/thread.tss?thread_id=27051   (1801 words)

 Access Control List Settings
It describes the ACL settings for new content that is created in that folder by an author or administrator who is using the FrontPage client.
When an administrator sets the ACLs for a FrontPage-extended web using the FrontPage client's Permissions command, FrontPage displays the Windows NT computer account list by default.
You can set up a restricted list of users and groups that does not expose the entire contents of the Windows NT computer and domain account lists.
www.ucalgary.ca /~mortis/docs/serk/scwin_4.htm   (566 words)

 NetLingo.com Dictionary of Internet Terms: Online Dictionary   (Site not responding. Last check: 2007-10-07)
A list, maintained by the operating system, that specifies who gets permission to read or write files and directories and who gets permission to execute certain programs.
It is up to the sysadmin to assign and control the levels of access.
For example, a company may want to allow access to payroll records only to users within the human resources department.
www.netlingo.com /right.cfm?term=access+control+list   (70 words)

 Systems that have changed the default Access Control List permissions on the %windir%\registration directory may ...
Systems that have changed the default Access Control List permissions on the %windir%\registration directory may experience various problems after you install the Microsoft Security Bulletin MS05-051 for COM+ and MS DTC
An access denied error may occur when you try to connect to Windows Management Instrumentation (WMI) by using script, the WBEMTest.exe utility, or other utilities.
The application cannot access the COM+ catalog files because the default permissions on the COM+ catalog directory and files have been changed from the default settings.
support.microsoft.com /?id=909444   (1757 words)

 PHP Generic Access Control Lists   (Site not responding. Last check: 2007-10-07)
These are objects which control what access is available to "requesters" (see below).
These are objects which extend permissions to a 3rd layer, optionally allowing you to set fine grained permissions on each individual item in your application, or even row in your database.
AXO's are often used in cases where you only want to give a user access to a specific project or contact.
phpgacl.sourceforge.net   (593 words)

 Gentoo Linux Documentation -- ProFTPD Access Control List bypass vulnerability
Version 1.2.9 of ProFTPD introduced a vulnerability that causes CIDR-based Access Control Lists (ACLs) to be treated as "AllowAll", thereby allowing remote users full access to files available to the FTP daemon.
The CIDR ACLs are disregarded, with the net effect being similar to an "AllowAll" directive.
This vulnerability may allow unauthorized files, including critical system files to be downloaded and/or modified, thereby allowing a potential remote compromise of the server.
www.gentoo.org /security/en/glsa/glsa-200405-09.xml   (139 words)

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