Common configuration commands for LAN switch MaintenanceFor the following information about LAN switch maintenance, please explain the Common commands in a blank space. LAN switches have evolved from a HUB-based LAN shared in the traditional sense to a broader space. The wide st5000 series local area developed by Cisco
EtherChannel sum view "Port aggregation/link Bundle #sh int port-channel View" Port aggregation/link Bundle #show spanning-tree view spanning tree status#show access-list View rule status#show History View Historical input commands#show errdisable Recovery see which protections can be automatically recovered after a timeout#showerrdisable Detect ? View err-disabled reason for the state6. Configure the IP of the VLANS (config) #int VLAN 6S (Config-vla
Switch commands between Linux Super Users and common users, and linux Super Users
The default logon permission is normal user permissions.Show $ Operator
Tree @ ubuntu:/usr $
Switch super user permissions from common users:
Sudo su
Tree @ ubuntu:/usr $ sudo su
Enter Password
[Sudo] password for tree:
After entering the password, you can
Cat/sys/kernel/debug/vgaswitcheroo/switch//view current video card statusIGD: Integrated display, integrated graphics; DIS:D iscrete display, discrete graphics[Email protected] kiosk]# cat/sys/kernel/debug/vgaswitcheroo/switch0:igd:+:P wr:0000:00:02.01:dis:: Off:0 000:01:00.00 and 1 are serial numbers PWR indicates running off you knowecho off >/sys/kernel/debug/vgaswitcheroo/switch Close the currently unus
name172.16.2.50_TCP_8000 access-list100source-nat-poolsnatslb service-groupnginxha-conn-mirror templateNbsp;persistsource-ipsource_ip_persist Such a simple load is added to the complete.A10 Load device commands are basically consistent with Cisco device commands, but there are also differences.The Cisco device Master and Standby switch
After reading the video from instructor Bi Xiangdong, I found that the teacher typed a key in the DOS window to instantly play the Java demo, and then typed a key before the sentence instantly turned into javac demo. java; because it is a video tutorial, you cannot see the instructor's specific tips for switching back and forth between multiple command statements. At first, I guess I have specified some shortcut keys to replace these statements. However, I thought it would be impossible to
Use the switch statement to process the menu command. In many applications, the process is controlled by a menu, such as entering a'a'or 'a' character from the keyboard, a operation is performed , and a ' b' or 'b' character, the b operation will be performed . Solution: Program:#include void Add (int x, int y){printf ("x+y=%d\n", x + y);}void Mul (int x, int y){printf ("x*y=%d\n", x * y);}int main (){void Add (Int,int), Mul (Int,int);Char ch;int a
Tags: Cisco switchBasic configuration and management of switches• Technical Principles• The switch is managed in two basic ways: in-band management and out-of-band management.• The console port management switch through the switch is out-of-band management, which does not occupy the network port of the switch, and the
En
Conf t
Hostname SW1
Username CCNA Password CCNA
No IP domain-lookup
Service Password-encryption
Enable Secret Cisco
Line con 0
Login Local
Logging synchronous
Exec-timeout 0 0
Line vty 0 4
Login Local
Logging synchronous
Exec-timeout 0 0
int VLAN 1
IP addr 192.168.1.1 255.255.255.0
No shut
IP Default-gateway 192.168.1.254
Show run
Copy Run start
Switch basic configuration
For more information about vswitch configurations, see the following command:
1. spanning-tree portfast
Normally, the Spanning Tree Protocol ensures redundancy while avoiding loop loops. However, status changes require some latency, which may not be allowed in the network, especially for connected hosts, cisco has new features such as portfast, but it is very painful to configure this command on each port. In fact, you can configure this command in global mode.
switch to directory using CDWithout any permissions, use-to indicateSet permissions for Linux files and directorieschmod [-r] Model fileExample: chmod o-w Perm Set Write permissions to other users (perm file)U (owner), G (group), O (Other), A (UGO)+-= (plus minus equals [permission]), rwx (Read and write execution)Linux file compression instructionsgzip [-cdtv#] File nameExtension *.gz-C: Output compressed data to the screen-D: decompressed parameter
System Switch Machine commandDescription-The server does not shut down frequently, restarts, does not fail, and the server does not shut down. So these commands don't seem to be very common.1, Shutdown/usr/sbin/shutdowne.g.Shutdown-h 0# shuts down immediately , but it is best not to use this command on the server.2, Reboot/usr/sbin/reboote.g.Reboot system restartFor additional details, please:Mans shutdownM
The use of the SNMP protocol in switches I'm sure you're not unfamiliar, so let's go over 5 basic switch SNMP configuration commands in detail. The completion of the switch SNMP configuration commands is a common problem, how to complete the switch SNMP configuration
I want to switch to the background to run some services:Two methods:1. You can add a character to the last face of the start Service command at runtime, for example./servicestart 2. After the service starts, press CTRL + Z to switch the service to the background and pause, then use the command: BG number starts the service in the background and can use jobs to view the tasks in the background after startup
Industrial Control Security-through SCADA removal (switch water pumps \ send arbitrary commands \ Intranet topology \ video monitoring \ a large number of sensitive data leaks)
Never give up !!!!Let the lightning flash blind me, this service page must be accessed using IE8.
Http: // **. **/bugs/wooyun-2010-0144999 sometimes the heart is so cold and coldSearch for the company http ://**.**.**.**/
Use SCADA
Shutdown:Shutdown-h now--> immediately shut down (production commonly used)Shutdown-h +1-->1 minutes after the shutdownInit 0--> Switching the operating sector to 0Halt--> immediately stop the system and require manual power -down (common production)Halt-pPoweroff--> Stop the system immediately and power offRestart:Reboot--> (common production)Shutdown-r now--> (common production)Shutdown-r +1-->1 minutes after rebootInit 6--> switch Run level to 6Can
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