Command netstat for Linux CentOS

Command netstat for Linux CentOS 

Check only Port from command (ftp type = 21) 
- netstat -nat | grep 80 or netstat -nat | grep 21

Check TCP 
- netstat -n 

Check routing
- netstat -rn

 Check all port 
-  netstat -an | less 

Check all TCP Port 
 - netstat -lt 

 Check all UDP Port 
- netstat -lu 

Check connection TCP Port 
- netstat -at 

Check connection UDP Port 
- netstat -au 

Count the conncection 
- netstat -nat | grep 80 | wc -l 

Linksys WRT1200AC management page review

Linksys WRT1200AC management page review

Login page - Open first time or after factory default Login page go to http://192.168.1.1 (default username and password is admin)

Main Menu page after login page will show menu (connectivity, Trobleshooting, Wireless)

Connectivity menu.  @basic sub menu, you can edit for modify the information by quick edit.

Connectivity menu.  @internet setting menu, you can choose type of internet connection example Static IP, PPPoE, PPTP, L2TP, Bright Mode, Wireless Repeater, Wireless Bridge. you also setting detail of LAN IP and domain name for wireless network.

Troubleshooting menu (Status, Diagnostics, Log). 

Troubleshooting menu @status page show machines connected to this network and can check client got the IP address from this device by click at DHCP client table 

Troubleshooting menu @Diagnostics page can test connection by Ping command and trace route by put the IP address of your destination machine into them. and click start ping or start to trace-route

Ping

Trace Route

Wireless Menu, Can setting the wireless network setting into this page.

 - 2.4GHz, Wireless name, Security mode, etc and network button enable

 - 5GHz, Wireless name, Security mode, etc and network button enable

Finish.

Review speed of SD card Strontium 64GB (single file)

Review speed of SD card Strontium 64GB (single file)

1. Micro SD card band Strontium model NITRO 566x 64GB and SD card adapter

2. Copy big file size about 9GB from D:\ to SD card drive.

3. Paste and copying to micro SD card Strontium 64GB.  Write speed AVG 35 - 36 MB/second

Start copy (write into  card)

Middle way (write)

Final (write)

4. Read data from micro SD card Strontium 64GB to D:\   

4.1 The speed for read about 83 - 84 MB/second ( near cover)

copy to D:\ (read)

copy to D:\ (read)

Enjoy your decide about SD card with performance and budget

Setting Undo Gmail (simple)

Setting Undo Gmail (simple )

1. In web Gmail go to setting menu (gear symbol) and click Settings at sub-menu

Settings menu

Sub-menu

2. Go to "General" menu and see text Undo Send at the bottom of page.
Then click Enable and choose your undo time (recommend 30 seconds)
And then click Save change.

3. Test compose your email (sent) and put information into it.

4. When click send please see the status at the middle-top of the page

4.1 If you see sending... Cancel  <<<<< click for cancel this email (show within 5 second after your click)

4.2 If to hurry, just see the next message is Undo <<< you also click for cancel within 20-25 seconds (This is last undo)

* if miss the email will arrive destination.

5. After you press Undo the email came back to draft. you can check in draft category. 

Hope this procedure will help you.

Setting Forward port on ZHONE 2426A Router Wifi

Setting Forward port on ZHONE 2426A Router Wifi

1. In the home page click at "Configuration"

2. at Configuration page click "Firewall" and then click "Port Forward sub menu" will see Port Forward page.

3.Setting the Firewall port forward by create your rule name (1),  choose type is "Range" (2), Write your port start and destination * you choose know about port number * (3-4), Protocol choose Both (5),  NAT interface is default (6), Private IP is your notebook IP or your machine at your want to forward (192.168.2.XXX) and click "Add Rule"

4. See the new row in Port Forward page on the top of window.  If you want to delete click check box last the word then click "Delete Rule" below. 

5. Complete, You can create and delete to Forward port. Please note this menu don't have modify or edit. You need to delete and create again if you type wrong.

Remark: ZHONE 2426A Router Wifi Default Username is" admin"  and default password is "zhone"

Enjoy, with you ZHONE 2426A fibre router wifi 

 

Off Windows firewall simple step in Microsoft windows 7 Professional

Off Windows firewall in Microsoft windows 7 Professional

1. Go to start button
   
2. See the window menu and click at "Control Panel"
   

3. In "Control Panel page" find the windows firewall and click

4. In "Windows Firewall page" will see Firewall status "ON"  (green color)  then go to click at Turn Windows Firewall on and off

5. Select at "Off" radio button at How and work (private) network and select "Off" radio button at public part and then click "OK"

6. Complete, See the windows firewall status is Off and "red color"

 

 

Sharing Internet by Windows 7 (By notebook)

Sharing Internet by Windows 7  by notebook (Lan to Wireless)

1. You must design your notebook connect to internet by LAN (wire) and other mobile devices will connect behird your notebook (wireless) 

Figure1

2. Go to "change adapter settings" 

Figure2

3. Next, right click to "Local Area Network" and properties 

 Figure3

4. Go to Sharing tab and click true at "Allow other network  users to connect through this computer's Internet connection"

and choose your wireless is "Wireless Network Connection"  (Some notebook has 2)

Figure4

5. Create your ad-hoc WI-FI,  click "Setup a new connection or network" 

Figure5

6. Click "Setup a wireless ad-hoc (Computer-to-computer) network" and next 

Note: Ad-hoc is not access point (Some mobile device scan only access point)

Figure6

7. Click "Next" 

Figure7

8. Create network name "test-wireless" (example name)

8.1 Security type choose "WEP" (WPA2 is better more than WEP but not support connect from some mobile device)

8.2 Password for WEP is 10 digi-number

Figure8

9. Waiting process until finish.

Figure9

10. Finish and check your result (If wrong, create new is easy more that modify)

Figure10

 11. Check the WI-FI ready and waiting for users.

Figure11

12. Network popup will show but can choose home or work (if not have can skip)

Figure12

13. Next, check WI-FI from another mobile device. (Example)

Figure13

14. Click at test-wireless and click "Join Anyway"

Figure14

15. Type your password 10 digi

Figure15

16. Check your wireless success and check detail.

Figure16

17. Check IP address must as same notebook wireless network. 

Figure17

18. Back to your notebook and check connection must show connected.

Figure18

19. The last one, check your wirless IP address. 

Figure19

20. You can adjust into your network area.