In the work, often execute some regular script, before each execution we should check whether the script has changed, to prevent someone in the script to insert a dangerous command, here is a command is very useful, you can familiarize yourself.1、AIX 系统命令istat$ istat init+ASM.oraInode 111666 on device 10/15 FileProtection: rw-r--r-- Owner: 511(grid) Group: 511(oinstall)Link count: 1 Length 5242 bytesLast updated: Fri Mar 16 08:54:36 CST 2018Last modified: Fri Mar
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
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
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
Release date:Updated on:
Affected Systems:Novell NetwareDescription:--------------------------------------------------------------------------------Novell Netware is a commercial network operating system.
Novell Netware in xnfs. the nlm component
Linux is a multi-user, multi-task system. If you can run multiple programs of multiple users at the same time, many processes will inevitably be generated, and each process will have different states.
Linux Process status: R (TASK_RUNNING),
/Proc // STATContains all CPU activity information. All values in this file are accumulated from the start of the system to the current time.[Root @ localhost ~] # Cat/proc/6873/STAT6873 (A. Out) r 6723 6873 6723 34819 6873 8388608 77 0 0 41958 31 0
BYS @ bys1> set arraysize 200BYS @ bys1> set autotrace traceonly statBYS @ bys1> select * from test2 order by 3;72465 rows selected.Elapsed: 00:00:00. 57Statistics----------------------------------------------------------1 recursive cballs0 db block
Question: enter a positive integer N, then read n positive integers A1, A2, a3..., An, and then read a positive integer m. The number of positive integers in the statistical series is smaller than M.
Code:
#include #include void main(){ int i,n,
be a directory.
Parameters:
-F Overwrite if the target path already exists.
-P This selection preserves the properties of the file [TopX] (Timestamps (timestamp), ownership (ownership), permission (permission), ACL, xattr). If-p does not specify a parameter, then save timestamps (timestamp), ownership (ownership), permission (permission). If-PA is specified, the permission information is also preserved. Because ACLs
is forbidden to connect the switch to the network until the VLAN information in the network changes, so Because it is configured with the console line.
At the beginning of the configuration 2950 because the password has not been set, security considerations do not connect it to the network, because it is configured with the console port. All ports are self-tested when the switch is power on, and the indicator light on each port starts to turn off after a period of time. The system's instruction
", 10000, new Watcher () {@Override public void process (WatChedevent event) {System.out.println (event); }}); Zookeeper2.addauthinfo ("Digest", "Tom:tom". GetBytes ()); stat = new stat (); byte[] Tomdata = Zookeeper2.getdata ("/ Tom ", True, stat); System.out.println (New String (Tomdata) + "," + stat);The result seem
displays the default ACL.
Options:
-R: list the ACLs of all files and directories recursively.
Path: File or directory to list.
Examples:
Hdfs dfs-getfacl/File
Hdfs dfs-getfacl-r/Dir
Exit code:
Returns 0 on success and non-zero on error.Getmerge
Usage:Hdfs dfs-getmerge
Takes a source directory and a destination file as input and concatenates files in SRC into the destination local file. Optionally addnl can be set to enable adding a newline
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