policy. Only selected processes is protected.# Mls-multi level Security protection.selinuxtype=targetedSELinux Total switch three states enforcing, permissive, disabledEnforcing: Forced to open (will intercept illegal access and record the date to)Permissive: Warning Mode (will be recorded in SELinux day to date, but will not intercept)Disabled: Disabled (set to J disabled, should restart the computer)selinuxtype=targeted set SELinux type, type two,
follows:Figure 2In the MLS model, all subjects and objects are labeled with a security level, with a public and secret level, which represent the sensitivity of the data to two levels. In MLS, the subject is always able to read and write objects, in addition to the main object (read down), write to the high-level object (write up). Here we know that MLS is the m
After installing the lamp environment, test the database connection.
When host uses 127.0.0.1, the error is: (hy000/2002): Permission denied.
After replacing the host with localhost, it also complains: sqlstate[hy000] [2002] No such file or directory.
The final discovery is that SELinux is not turned off, and SELinux is enabled by default after CentOS7 is installed.
[Root@rdo ~]# sestatus
SELinux Status: enabled
SELINUXFS mount: /sys/fs/selinux SELinux
Roo
:
Bell screams when the instructions are done.
8 LS, DIR, MLS, Mdir, MKDIR, RMDIR
LS is a bit like the LS (LIST) command under UNIX:
Dir is equivalent to Ls-l (List-long);
MLS simply saves a file in a remote directory at the local side of a file;
Mdir equivalent to MLS;
MkDir is the same as MD (creating a subdirectory) under DOS:
RmDir is like an RD (delete subd
# SELINUXTYPE = can take one of these two values: # targeted-Targeted processes are protected, # mls-Multi Level Security protection. SELINUXTYPE = targeted // Our CentOS policy is the target policy.
Iv. SELinux Mode
SELinux has three working modes: enforcing, permissive, and disabled.
① Enforcing forced mode: any action that violates the policy will be banned and recorded as kernel information
② Permissive permitted mode: action that violates the po
provided in nfcapd. Usually by default both timeouts are 5 minutes.Extra configuration for busy RoutersIf you feel your router is handling loads of data and is relatively busy, then you can add following configuration line in your router
MLS aging fast time 4 threshold 2
MLS aging normal 32
MLS aging long 900
NfsenNfsen is the frontend to
sends a cry when the command is complete.8) LS, DIR, MLS, MDIR, MKDIR, RMDIRLS is a bit like the LS (LIST) command in UNIX:DIR is equivalent to LS-L (LIST-LONG );MLS only stores objects in a remote directory in a LOCAL file;MDIR is equivalent to MLS;MKDIR is like the MD (create sub-directory) in DOS:RMDIR is the same as RD (delete sub-directory) in DOS.9) OPEN,
displays the following parameters:BELL sends a cry when the command is complete.8) LS, DIR, MLS, MDIR, MKDIR, RMDIRLS is a bit like the LS (LIST) command in UNIX:DIR is equivalent to LS-L (LIST-LONG );MLS only stores objects in a remote directory in a LOCAL file;MDIR is equivalent to MLS;MKDIR is like the MD (create sub-directory) in DOS:RMDIR is the same as RD
-existent files and recreates all default security rules: generate an empty /. autorelabel file, and then restart. This takes a long time. Seinfo [OPTIONS] [POLICY_FILE] sesearch [-a | -- allow | -- audit | -- neverallow | -- type |-s NAME |-t NAME] [POLICY_FILE]: sesearch-a-s httpd_t-t etc_t/etc/selinux/targeted/policy/policy.21getseboolsetsebool [-P] sebool = value-P indicates that it will still take effect after startup, if this parameter is not added, only the system-config-selinux tool curr
Public Static voidSetversion (Finalversioned versioned, String version)throwswtexception {Try { if(Version = =NULL|| Version.trim (). Length () = = 0) { //If The version ID string is null and the load file did not//specify it.Version =NULL; if(Versioned.getversioninfo ()! =NULL) { //If The object already have a Versioninfo object then//assume it is correct//and no further action is needed. Otherwise, make a//default Versioninfo object.
Layer-3 Switch for Cisco switches
Although single-arm routing solves the communication problem between different VLANs, it also has its fatal defects:
-The single arm itself is the Backbone link of the network, which is easy to form a network bottleneck.
-The sub-interface relies on physical interfaces, and the application is not flexible
-You need to view the route table for each vlan forwarding, wasting device resources.
The problem above is caused by poor Routing Switching capabilities. To s
:
Bell screams when the instructions are done.
8 LS, DIR, MLS, Mdir, MKDIR, RMDIR
LS is a bit like the LS (LIST) command under UNIX:
Dir is equivalent to Ls-l (List-long);
MLS simply saves a file in a remote directory at the local side of a file;
Mdir equivalent to MLS;
MkDir is the same as MD (creating a subdirectory) under DOS:
RmDir is like an RD (delete subdi
After installing the lamp environment, test the database connection.When host uses 127.0.0.1, error: (hy000/2002): Permission denied.Replace host with localhost, and error: sqlstate[hy000] [2002] No such file or directory.The last discovery is because SELinux is not turned off, and it is usually enabled by default when the download is finished CentOS7.[[Email protected] ~] # sestatus SELinux Status: enabled selinuxfs mount: /sys/fs/selinux selinux root director
those accountsTABLESA list of tables to be exported; Table export operation to perform these tablesRecordLengthDump the length of the exported file log (in bytes), usually using the default unless you want to pass the export file in two different operating systemsInctypeType of export operation being performed (valid values are complete (default), Cumulative and Ivcremental)RECORDA tag in the incremental export type that indicates whether the log is stored in a data dictionary in a log-exported
entire database export operation will be performed(Ten) OWNERA series of database accounts to export, and then perform user export operations for those accounts(one) TABLESA list of tables to be exported; Table export operation to perform these tables(RecordLength)Dump the length of the exported file log (in bytes), usually using the default unless you want to pass the export file in two different operating systems(Inctype)Type of export operation being performed (valid values are complete (def
When Linux is installed, it is usually the case that SELinux is turned on by default, which causes the installation of some services to be unsuccessful.It can be completely closed if not needed, here is how to view it in CentOS 7.0 and turn off SELinux.View SELinux StatusWhen Linux is installed, it is usually the case that SELinux is turned on by default, which causes the installation of some services to be unsuccessful. It can be completely closed if not needed, here is how to view it in CentOS
controlled by selinux, only vulnerable processes are monitored, CENTOS4 only 13 services are protected, and CENTOS5 protects 88 services?MINIMUM:CENTOS7, modify the targeted, only to select the network service? MLS: Provides security for MLS (multilevel security); Targeted is the default type, minimum and MLS are not stable enough to be applied, strict is no lon
-matrix connections per channel to each module. The continuous forwarding rate on the dCEF720 module is as high as 400 Mpps. Based on hardware IPv6, all features such as BGP, IPv6 to v4 tunnel are fully implemented. Full MPLS support (WS-Sup720-3BXL only ).
Cisco smart switch
Supports 32 10 Gbps or 192 1 Gbps relay instances. Use common modules and operating system software on all Cisco Catalyst 6500 series chassis. The Catalyst 6500 series provides
DWDM/CWDM interface to work with optical transmission. The performance was constantly improved. It supports RPR networking technology, MPLS, and fast Spanning Tree Protocol, the integrated data, voice, and video services that can be managed and Intelligently Based on the IP platform will be gradually implemented, qoS, security, content distribution, MPLS, and other business features and solutions support w
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.