The access control list (ACL) is the command list of the router interface, used to control incoming and outgoing packets on the port. ACL applies to all routing protocols, such as IP, IPX, and appletalk.
The ACL is also defined based on each protocol. If the router interface is configured to support three Protocols (IP, appletalk, and IPX), you must define three ACLs to control the data packets of these three protocols.
The role of ACL
ACL can limi
the permission to use this luns.Here we need the WWN to access the luns machine, not the local
/qla2xxx/21:01:00:1b:32:31:43:XX/acls create 21:00:00:1b:32:11:64:XX/qla2xxx/21:01:00:1b:32:31:43:XX/acls create 21:01:00:1b:32:31:64:XXCheck and save Configuration
In the top-level directory of targetcli, execute ls to view all the configurations.
/> lso- / .......................................................
1. ACL definitionAn ACL (access control list) is a list of instructions that are applied to the router interface. These instructions tell the router which packets to receive, which packets are rejected, received, or rejected according to certain rules, such as source address, destination address, port number, and so on. ACLs enable users to manage the flow of data and detect specific packets. For the IP protocol, on each port of the router, you can cr
to discuss search "IPSEC" and there will be n more information about IPSec applications ..) (the game blade is on the edge of the Technical Ghost God to create a server security myth! Pioneer in the Internet revolution! Server Security discussion area [s.s. d. A] http://www.31896.net) ⑤ Delete, move, rename, or use the access control table column access control lists (ACLs) to control key system files, commands, and folders: The hacker often comes t
scala> val file = Sc.textfile ("Hdfs://9.125.73.217:9000/user/hadoop/logs") Scala> val count = file.flatmap (line = Line.split ("")). Map (Word = = (word,1)). Reducebykey (_+_) Scala> Count.collect () Take the classic wordcount of Spark as an example to verify that spark reads and writes to the HDFs file system 1. Start the Spark shell
/root/spark-1.4.0-bin-hadoop2.4/bin/spark-shell Log4j:warn No Appenders could is found for logger (org.apache.hadoop.metrics2.lib.MutableMetricsF
correctly:
Slave_io_running:yesSlave_sql_running:yes
Backup and restore using the database file (Raw Data)
Backing Up Database files
Service MARIADB StopTar--selinux--acls--xattrs-czpf/root/dbbackup.tar.gz/var/lib/mysql/Service MARIADB Start
Note: The red parameter lets tar back up both the SELinux property and other ACL properties to prevent it from being restored to the target server.Restore Database files
Service MARIADB StopTar--selinux--
:
Slave_io_running:yesSlave_sql_running:yesBackup and restore using the database file (Raw Data)
Backing Up Database filesService MARIADB StopTar--selinux--acls--xattrs-czpf/root/dbbackup.tar.gz/var/lib/mysql/Service MARIADB StartNote: The red parameter lets tar back up both the SELinux property and other ACL properties to prevent it from being restored to the target server.
Restore Database filesService MARIADB StopTar--selinux--
Build the intrusion detection system under Linux--lids System Management Command--vlockHttp://blog.chinaunix.net/uid-306663-id-2440200.htmlComposition of the LidsTwo user-state tools and some files, and a kernel patch/sbin/directory holds LIDSADM commands and lidsconf commands/etc/lids/lids.conf #ACLS配置文件/etc/lids/lids.cap #LIDS capabilities (feature) profile/ETC/LIDS/LIDS.PW #LIDS密码文件/etc/lids/lids.net # Lids Message Warning profileFirst, what is lid
Because spark-1.3 as a milestone release, add a lot of features, so, it is necessary to study a, spark-1.3 need to scala-2.10.x version support, and the system on the default Scala version of 2.9, need to upgrade, You can refer to Ubuntu to install the 2.10.x version of Scala. After configuring the Scala environment, download the CDH version of Spark and click I download. Once downloaded, unzip directly and then run directly in the bin directory./spark-shell: The logs are as follows: [Email pr
users can create objects in the system or Sysaux table space. You do not need to have a quota for the allocated temporary table space or any restore table space. • When a user creates or extends a segment, the Oracle instance checks the limit. • For activities that are assigned to a user scenario, only those activities that use space in the tablespace are accounting for the limit. Activities that do not use space in the allocated table space, such as creating a view or using temporary table spa
ACL Advanced Applications 1 , using ACLs to detect SYN flood attacks Each SYN message received by the server needs to establish a connection and allocate core memory for the link information, put this link into a half connection, and then respond to the syn+ack message to the source address. If the source address of the SYN message is forged, the source cannot receive the Syn+ack message sent by the server, and the ACK acknowledgement message will not
ACL permission control
Set ACL permissions: Setfacl
To view ACL permissions: Getfacl
The main purpose of ACL privilege control is to provide specific permission settings beyond the traditional Owner,group,other Read,wirte,execute permissions, and to set specific permissions for a single user or group
For example, a directory permission is
drwx------2 root root 4096 03-10 13:51./acldir
Users user user does not have any permissions on this directory so they cannot access this directory, and
directory/r/A:: Recursive way to all permissions in directory directory to the Administrators group
TAKEOWN/F *:: All files under the current directory ownership to the current user
takeown/f%windir%*.txt
cacls is used to display or modify the access control list for a file.
Software name: Cacls.exe download
Parameters:
CACLS filename [/T] [/M] [/L] [/S[:SDDL]] [/e] [/C] [/g user:perm]
[/R user [...]] [/P User:perm [...]] [/d User [...]]
FileName Displays
run the demo program that calculates PI:./bin/run-example SPARKPIas shown in figure:after a few seconds, execution completesas shown in figure:complete information is:[Root@hserver1 ~]# cd/opt/spark/spark-2.1.1-bin-hadoop2.7 [Root@hserver1 spark-2.1.1-bin-hadoop2.7]#./bin/ Run-example SPARKPI the Using Spark ' s default log4j profile:org/apache/spark/log4j-defaults.properties 17/05/17 11:43:21 INFO sparkcontext:running Spark Version 2.1.1 17/05/17 11:43:22 WARN nativecodeloader:unable to load
I installed a version 12.2 iOS firewall on the Cisco 2514 Series Access router. At that time, the router was also using extended ACLs to filter traffic that was entered from the Internet interface. After disconnecting the cables from the external interface, I sorted and removed the existing ACLs and implemented the following iOS firewall performance.
One common denominator in configuring
In Windows Vista and Windows Server 2003 Service Pack 2, Microsoft provides a new command-line tool icacls that you can use to view, set, save, and recover permissions for a folder or file. It is more powerful in function than it used to be cacls.
icacls name/save AclFile [/T] [/C] [/l] [/q]
The ACLs for all matching names are stored in AclFile for future use in/restore.
icacls directory [/substitute sidold sidnew [...]]/restore aclfile
[/C] [/L]
In oracle11g, Oracle has a lot of security improvements, and in terms of network permissions control, there is a new concept called ACL (Access control List), which is a fine-grained permission control. Before the ACL, we have some packages, such as Utl_mail, UTL_SMTP and so on, you can use these packages to connect to external hosts, and by default, these packages are all assigned to the public role, so the malicious tools that exploit these PL/SQL packages may result , so Oracle proposes a new
/run-example sparkpi 102018-06-04 22:37:25 WARN utils:66-your hostname, localhost. localdomain resolves to a loopback address:127.0.0.1; Using 192.168.199.150 instead (on interface wlp8s0b1) 2018-06-04 22:37:25 WARN utils:66-set spark_local_ip If you need t o bind to another address2018-06-04 22:37:25 WARN nativecodeloader:62-unable to load Native-hadoop library for your PLA Tform. Using Builtin-java classes where applicable2018-06-04 22:37:25 INFO sparkcontext:54-running Spark version 2.3. 020
Transferred from: http://linuxguest.blog.51cto.com/195664/1241071. Why ACLs are usedLet's start by simply reviewing the Linux file permission.Under Linux, objects that can operate on a file (or resource) are divided into three categories: File owner (the owner of the document), group (which is not necessarily the group where the file owner resides), and other (others)Read, write and Execute/search permission are defined separately for each category (S
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