csn acls

(Forbidden) Protocol Source IP address/network segment Anti-mask destination IP address/network segment anti-mask eq Port ****** Prohibit a network segment (source network segment) under a protocol (or a port) access to the B segment (destination network segment) router (config) #access-list table number permit ip any Any note: Extended ACLs By default all networks are also set to prohibit, so other network segments should be released. ro

ACLs are abbreviations for access Control List, and the main purpose is to provide a detailed permission configuration outside of the traditional owner,group,others Read,write,execute permissions. ACLs can be used for single-user, single-file or directory-r,w,x permission specifications, which is useful for situations where special permissions are required.What are the main areas that

belong to file owner and group. SoThe Access Control List (ACL) is used to help us solve this problem.Simply put, an ACL is a way to set permissions on a file/folder for a specific user or group of users. NeedThere are only three commands to master: Getfacl, Setfacl, ChaclYou can install the ACL RPM package before the next discussion.Code:# RPM-IVH libacl-2.2.39-1.1 acl-2.2.39-1.1.i386.rpmIf the configuration is good, yum can install both packages directly# yum-y Install Libacl ACLAdditional su

Set what permissions a user has on the fileGetfacl[[email protected] ~]$ getfacl mic/ View ACL for this file# file:mic/# Owner:job# Group:jobUser::rwxuser:tom:rw-Group::---mask::rw-Other::---[[email protected] ~]$ Setfacl-xu:tom mic Cancel all permissions for this user[Email protected] ~]$ Getfacl mic/# file:mic/# Owner:job# Group:jobUser::rwxGroup::---Mask::---Other::---[email protected] ~]$ setfacl-mg:admin:rwx mic/ Setting the group's ACL[Email protected] ~]$ Getfacl mic/# file:mic/# Owner:j

Disadvantages of the traditional permissions model:The traditional UGO permissions model cannot respond to responsible permission setting requirements, such as the ability to set only one group for a file and permission control for that group, but the traditional Ugo model cannot meet the requirements if multiple combinations of the file are accessed and require permission restrictions.ACL permissions are used to manage theACL (Access Control List) is an advanced permission mechanism that allows

#cp/etc/inittab./#getfacl Inittab#setfacl-M U:REDHAT:RW inittabOwner>facl,user> Group > Facl group>All permissions cannot exceed the permissions of maskSETFACL-M m:rwx [filename or directory_name]-X CancelSetfacl-x u:uid file_nameTo set a default access control list for a directory:D:u:uid:perm file_nameMount-o acl/dev/myvg1/mylv1/mntDumpe2fs-h/DEV/MYVG1/MYLV1 (see if ACLs are supported)Tune2fs-oExample: authorizing a user to read permissionsSetfacl-m

Layer-3 Switch ACLs are used to isolate different VLANs. Create three VLANs: vlan10 vlan20 vlan30 www.2cto.com PC1 PC3 vlan10 PC2 PC4 vlan20 PC5 vlan30Vlan10 vlan20 vlan30 cannot communicate with each other but can access the Internet Pc1: 172.16.10.2 pc2: 172.16.20.2 pc3: 172.16.10.3 pc4: 172.16.20.3 pc5: 172.16.30.2 configure R1Int f0/0Ip add 192.168.1.2 255.255.255.0 configure f0/0No shInt lo0Ip add 1.1.1.1 255.255.255.0 configure the loopback IP a

That kind man can send me a copy of the Auth and ACLs on the Zend Framework in the practice project. Now we are studying ZF. There are two open-source blogs on the web that look at the code. Not too hard. There is no example where the key is. As I said above. Authentication and access control. I've studied thinkphp. In real-world projects, user groups and access control nodes can be dynamically added! A few things are confusing! 1 ZF put the resources

1, some friends often ask, setfacl-x or-M is how to use a usage, in fact, and-M,-X is a usage, system documents generally used,-m, X to do sample interpretation, add extended permissions to the file directory, generally rarely-X,-m to configure file ACL entries, may be some intentions of beginners Friend, will be a little catch.The explanations in the document are:The-m (--modify) and-m (--modify-file) options Modify the ACL of a file or directoryThe-x (--remove) and-x (--remove-file) options Re

Facl:filesystem access Control list--file systemSave additional access control permissions with file extension propertiesSETFACL: Set File extension permissions-M: Set U:uid:perm G:gid:perm example:setfacl-m g:nichol:rw inittabD:u:uid:perm (catalogue) D:g:gid:perm (catalogue) -x: Cancel U:uid G:gid example:setfacl-x u:nichol inittab-N: Do not recalculate effective permissions, Setfacl ACL mask is recalculated by default -B: Remove all extended ACL rules --mask: Setting effective Perm

file1 inside content, but do not want them to modify, there is a colleague User2 he is not in any project, but to see this file will be modified when necessary, obviously for this demand, Ugo This simple configuration has not been resolved, this time requires ACL permissions.ACL access control lists, which means that when the user does not meet any one of the Ugo, or when it is not possible to specify the rights of the corresponding user or group directly by configuring Ugo resolution, the use

Error example (the following error is reported when an http request is sent using UTL_HTTP): 1. Oracle allows several plsqlapis (UTL_TCP, UTL_SMTP, UTL_MAIL, UTL_HTTP, and UTL_INADDR) access external network services. All these APIs use the TCP

Error example (the following error is returned when an http request is sent using UTL_HTTP ): Cause: 1. Oracle allows several PL/SQL APIs (UTL_TCP, UTL_SMTP, UTL_MAIL, UTL_HTTP, and UTL_INADDR) to access external network services, all of which use

Import java.io.IOException; Import java.util.ArrayList; Import java.util.List; Import org.apache.hadoop.hbase.util.Bytes; Import Org.apache.zookeeper.CreateMode; Import org.apache.zookeeper.KeeperException; Import

File Lookup:1.locate: Non-real-time, fuzzy search, search is based on the system-wide file database;Fast speedThe file database is automatically updated before each shutdownUpdateDB: Used to manually generate a file database2.find:RealtimeExact

The Hsql script for the security ACL is only given on the official document of spring security, but spring did not explicitly give the database creation script and configuration instructions when using the Oracle database. The following are the SQL

Topology Description: Left run OSPF, right run EIGRP, redistribution routing protocol Controlling routing updates with access lists and prefix lists Rejected routing of 5.5.0.0 5.5.1.0 5.5.2.0 5.5.3.0 in the OSPF routing protocol domain Deny

One method that attackers often use to obtain network information is to impersonate a trusted member of a network. The attacker cheats the source IP address in the packet and sends it to the internal network. An attacker would only need to change

Topology Description: R1 and R2 run Eigrp,r2 and R3 and R4 run OSPF for bidirectional redistribution routes Experiment Purpose: Control routing updates using distribution lists Familiar with the role of ACL permit and deny in route

Review: allow-recursion {}; Define a client that can be recursive Allow-query {}; Clients that allow queries allow-transfer{}; Enable zone transfer Axfr Ixfr What if there are more clients that need to be defined? So you can use a variable to