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Regarding perfomance commands

Hi, we have application in linux server, which is built in java and mysql.we need some help in takeing performance of application in linux server.your help would be appriciated in this regard.

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Re: regarding perfomance commands

Start with Webmin . It can provide some more visibility for your linux server's performance and resource usage.

Posted on Feb 17, 2008

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How do I open the ports for mysql on my router. I have a database box and a development box and need to be able to have the development box be able to access mysql on the database box via the standard...

if you are wired as described there are no ports to open on your router. you are in the same vlan(IE: so no port routing is needed unless you are accessing them from the outside world which is what your router seperates you from.
however that means the systems can in theory talk to each other but you are now onto firewall rules of each system. effectivley only the mysql server need alllow inbound as outbound is usually not blocked. you can test if you are having a port issue by opening a command prompt and type telnet server_host 3306 (where server host is the ip or name of the server ) If you get a connection and some garbage characters, the port is open, If telnet hangs or the connection is refused, the port is blocked,
all that being said I would recommed you close any ports from the outside that don't absolutly need to be open.
Hope this helps
please don't forget to give me a rating


Sep 19, 2011 | Gateway Belkin 54g Wireless DSL/Cable...

2 Answers

Best way of total remote control of office computers, from home? Don't mention teamviewer. Looking for real solution, like windows server, can I have installed windows server on my home computer via...

As long as you aren't using linux on any of the workstations, I would whole-heartedly recommend LogMeIn (
It is free and allows you to access any computer on which it is installed through ANY web browser.

Mar 01, 2011 | Routers

2 Answers

How do you do system recovery for linux?

try the ubuntu site. there should be a fix there in the forums
also I found this list on tech republic:

1: Knoppix

[UPDATE: New link] Knoppix is one of the better tools for rescuing data from sick machines. It’s a full-blown live Linux distribution with a strong, user-friendly GUI that will allow you to easily mount a drive and then copy the data (which you will locate in an easy-to-use file manager) to an external source. Of course, Knoppix comes with the full arsenal of Linux commands, which place just about everything you need at your fingertips.
2: Trinity Rescue Kit

Trinity Rescue Kit might leave you wondering, “Why isn’t this tool being developed faster and on a larger scale? Although TRK is rather slow to develop, what it offers is just short of amazing. Place it on a USB drive, boot your virus-laden machine, and scan the mounted drives with clamav, antivir, bitdefender, and more. This tool is all command line, so you might have to bone up on your commands to really make use of it.
3: Avira AntiVir

Avira AntiVir is a command-line antivirus tool that is fast, robust, and dependable. There is a GUI tool, but installing it is almost more trouble than it’s worth. (It requires Java.) Installing AntiVir on Linux isn’t the easiest of tasks, but it’s certainly no kernel compilation.
4: GParted Live

GParted Live is a live Linux distribution that allows you to manipulate partitions on a drive. It supports numerous file systems and lets you can resize, create, and delete, partitions. You can run GParted Live from a CD or a USB drive, so it’s very portable.
5: SystemRescueCd

SystemRescueCd is another live Linux rescue CD that offers numerous tools to handle numerous tasks, including partition manipulation, file recovery, hard disk testing, ftp, and disk formatting. As with most live Linux distributions, you can place SystemRescueCd on either or CD or USB drive, and it offers an easy-to-use GUI and plenty of tools.
6: Ubuntu Rescue Remix

Ubuntu Rescue Remix is quickly becoming one of my favorite data recovery tools. Like all good live Linux CD tools, it includes an outstanding GUI (it is Ubuntu after all) that can help you handle tasks other tools can’t handle. You can recover and rescue Mac files/filesystems, recover data from nonstandard external drives, recover deleted files, and more. The one thing URR is missing is antivirus tools. But, since this is a Linux rescue disc, once installed, you can simply add the tools you need to your USB live CD.
7: F-Secure Rescue CD

F-Secure Rescue CD is based on Knoppix and allows you to check the integrity of your installed applications. It also allows advanced data repair and recovery, as well as recovery from that ever-dreaded malware!
8: Ddrescue

Ddrescue is a Linux tool designed to copy data from one file block device to another. This tool will aid you in rescuing data when your drive is suffering from read errors. Unlike many of the tools on this list, Ddrescue is not a live distribution but a tool you will use on a running Linux machine. So to rescue data, you will have to attach that troubled disk to the working Linux machine.
9: Safecopy

Safecopy is similar to ddrescue, allowing you to copy files from a disk suffering from I/O errors. It also includes a tool that allows you to read data from CDs in raw mode, as well as issue device resets and simulate bad media for testing and benchmarking.
10: Linux rescue mode

This is the only entry on the list that isn’t a downloadable tool. Linux rescue mode is a mode booted with the help of a Linux boot CD, allowing you to repair a broken system. From rescue mode, you can recover a root password, repair or reinstall the boot loader, and more. When you boot into rescue mode, it will typically mount your installed system into /mnt/sysimage, where you can take care of any business necessary.
More rescue tools?

These 10 Linux tools can help you recover, rescue, and repair a Linux, Windows, or Mac machine. Of course, plenty more tools are out there. Have you come across a Linux tool that can help you repair or recover a damaged or sick drive? If so, share it with your fellow TechRepublic members.

Apr 26, 2010 | Belkin (F5D5231-4) Router

2 Answers


Try or
If none works, then go to Start->Run and type 'cmd' without the quotes and press enter.
The command prompt window will appear. Then type 'ipconfig' without the quotes and press enter. Look at the Default Gateway ip address. That is the ip of your router.


Apr 08, 2010 | Belkin (F5D5231-4) Router

1 Answer

I have no problem connecting to web. My dgl-4500 shows all gaming ports timed out. Poor game performance.

Hi jwm5001,

As a fellow MMORPG player (am on WoW), i feel for you, esp if you pvp. I know what you're going through so allow me to offer some views on this. Try disabling all other gaming ports and only select the one that you are using. Also pls do the following (although you might know this already):

1. Click on Start, run
2. In the Run box enter this command: cmd
3. A small DOS black screen should have popped (this is known as a DOS Prompt screen). Enter these commands: Ping -t or alternatively, you could find out what the gateway address of the gaming site that you play is and try pinging that suing the "ping www.(address of gaming site here).com -t
4. The above command in 3 would signify your signal strength and also see if you're timing out when connecting to that particular site.

Overall, maybe it's just lag (server client lag) or a port based lag (for that MMORPG), or realyl crtappy intenet connectivity. General rule of thumb is:

Anything that times out, is bad
Anything that has a TTL of more than a normal range is bad
Anything that says destination host unreachable, is really bad!

So, yeah, try it out, lemme know any updates, stay cool aight?
I hope the above information helped. Please do let me know if there are other queires regarding this. Also, pls remeber to vote for me if you find this solution useful. Thank you.



Apr 05, 2010 | D-Link DGL-4500 Wireless Router

1 Answer

I'm trying to open a port on my router to allow users to connect to an online map. I opened port 1100 and I can see them ping my server but then it kicks them off.


It might be a possibility that you need to open some more ports to run the application. To check, you can put the server in DMZ just for the testing. In case if this allows your users to connect then let us know the name of the application which you are running.


Rashish Sharma

Mar 25, 2010 | Belkin F5D7234-4 Router

1 Answer

I would like to configure port fowarding on the Cisco 857 router using the http interface rather than via any coding. Is it possible and what do I need to do? In my scenario, the router must be configured...

It is possible to configure your router via a web browser. Although it’s disabled by default, your router has its own mini HTTP server built in. This provides another way to gain access to the router for the purpose of issuing commands. To enable the HTTP server, you have to use the command "ip http server" from the global configuration mode.

cisco(config)#ip http server

Then open a web browser and point it to one of your router’s IP addresses. The interface is not really nice, but you can issue commands using hyperlinks.
For security reasons I still suggest that you keep the HTTP server turned off, since it offers just another point of access for potential hacking.

What is so bad about the command line? Configuring port forwarding is actually pretty easy, once you know the commands.

Type show ip interface to find the name of the interface you want to set port forwarding for.

The show ip nat translations command shows you the current port forwards on Router.

Type configure to enter the configuration mode
The command for port forwarding is: ip nat inside source static (TCPorUDP) (YourComputersIP) (PortToForward) interface (name)(PortToForward)

in you case:
ip nat inside source static tcp 5900 interface (name) 5900
ip nat inside source static tcp 5901 interface (name) 5901
replace (name) with the interface name you got from the first command.

Then press CTRL-Z to end the Configure Session
Type copy run start once you tested your settings and press ENTER for the question Destination filename [startup-config]?

I have heard of some commercial tools that let you configure your router via web interface, but they are very expensive (around 1400$).
You can try it out for 14 days. Go here.
If you want to play with a free one, go to Cisco (link) and check it out. (You have to be a member though.)

If you have any more questions, just come back here and leave a comment - I'm happy to help.

Oct 24, 2009 | Cisco 857 Router (CISCO857K9)

1 Answer

Remote access

Yes it is. You can use the vnc server and client utilities for this. Install VNC server on all the linux pcs. Then install the windows version of vnc on the pc you want to connect FROM.

Give the ip address of the linux pc you wish to connect to, and lo, you get the same desktop that is on the linux pc. Of course you can configure password protection.

Another easy but techie way to connect is with telnet or ssh command after enabling these services on the linux pc.


Feb 16, 2008 | 2wire HomePortal 1800HG Router...

1 Answer

Frequent disconnection of internet service

HI rodelio,

Please give me the backbone of your committed internet rate (CIR), is it burstable bandwidth?  Actually router  is designed for Network Address Translation (NAT) which means it is better to have fast ISP that has committed internet rate (CIR). It is constantly happened for internet connectivity fluctuation cause of very low CIR specially when you are connected with more than 3 computers on the network setup.

Much better to used proxy server with linux, or Kerio Route Firewall for better performance of your browsing.

I am glad if you can extend your problem to me. I am here to help you.

Best regards,


Oct 02, 2007 | Edimax BR-6104K Router (br6104k)

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