General :: Networking Commands - Difference Between Ethtool And Miitool

Jun 21, 2010

I just started learning network on linux platform. Today I came across two commands ethtool and miitool. Both of them seems to do similar kind of jobs. Now I am confused what is the difference between them.

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General :: Difference Between Tar And Zip Commands?

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I have just started learning linux basic commands.one explain what is the difference between tar and zip commands.

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Does the nohup command make a process immune to the HUP signal by sending the process to the background or does it achieve this by some other means? If it it does send it to the background, then are all background processes immune to the HUP signal? If yes, then we can make processes go to the background for getting immunity against HUP by using the bg command as well can't we?

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dpkg -l
dpkg -list
dpkg -list | less

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Should I be using one or the other for different things?

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Networking :: Ethtool Not Properly Enabling WOL?

Nov 25, 2008

I'm having problems enabling Wake-on-LAN using ethtool.I'm using ethtool 5.1 on Fedora 8. Ethtool reports that the card supports u,m,b,g for WOL modes. I can run "ethtool -s eth0 wol g", which completes without errors.If I run ethtool again, the Wake-on setting is changed to whatever I just set it to. However, when I actually shutdown the machine, the lights on the NIC don't stay on as they normally should, and any attempts to wake the machine have no effect. The machine dual-boot Windows XP, and I have enabled WOL in the driver there. When I shutdown the machine from XP, everything works just fine. The NIC lights remain on and the machine wakes up properly. So...I think I have my BIOS configured properly, and my WOL utility is working properly.

Hardware Info:
------------------------------------------------------------
Adapter: Intel Pro/1000 GT PCI (Vendor ID: 8086, Device ID: 107C
Motherboard: Asus P5Q Pro

lspci Output:
------------------------------------------------------------
Ethernet controller: Intel Corporation 82541PI Gigabit Ethernet Controller (rev 05)

ethtool Output:
------------------------------------------------------------
Settings for eth0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full

[code]....

dmesg Output:
------------------------------------------------------------
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
ADDRCONF(NETDEV_UP): eth0: link is not ready
e1000: eth0: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX

[code]....

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Networking :: Wake On Lan Settings In Ethtool?

Mar 3, 2009

Im trying to remote power on my debian machine with gnome with the wake on lan function. I enabled it on my mainboard and was configuring my ethtool. There i see:

root@lappy:~# ethtool eth0
Settings for eth0:
Supports Wake-on: g
Wake-on: d
Link detected: yes

and after this command ethtool -s eth0 wol g i get this:

root@lappy:~# ethtool eth0
Settings for eth0:
Supports Wake-on: g
Wake-on: g
Link detected: yes

So i enabled it on software and hardware. Now im trying to sent the magic packets with a windows tool "wake on lan" I see that the package has been sent but the pc wont turn on. So when i check the ethtool settings again i see that it turned to:

Wake-on: d

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General :: Difference Between Make And Make BzImage Commands?

Feb 23, 2010

difference between make and make bzImage commands as both are used to build source code.

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Networking :: Can't Change To 1000 Speed With Ethtool?

Aug 9, 2010

I have two onboard gigabit connections and a PCI-E gigabit card, none of which seem to want to run beyond 100M. Everytime I issue the command to change speed to 1000M, it does nothing. I have tried modifying the interfaces file to make sure the command line for ethtool gets done automatically, but still no luck.

Below is the output from the use of ethtool to change speed. Since I am having performance issues with my local area networking (e.g. Samba transferring slower than the internet), I have been trying to figure out how to debug my network performance, and this was an obvious thing that stood out. The router and card are gigabit, yet don't use their full transfer rates.

[Code]...

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Programming :: Difference Between Two Find Commands?

Dec 27, 2009

Code:

find . -name *.txt

Code:

find . -name *.txt

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Ubuntu Networking :: Ethtool Is Reseting Wol Setting Before Suspendind?

Feb 28, 2011

So I have tried looking on the web for a solution to this, but I can't find anything. I have only found 2 posts with the same problem and both went unanswered. So I want to set my ubuntu machine to WOL with both Magic Packet and Unicast (the g and u functions in ethtool wol) wol supported: pumbg (thus g and u are both supported) I use "sudo ethtool -s eth0 wol ug" and check to see if it changed, and it does

sudo ethtool eth0
"wol: ug"

After I suspend though, only magic packet will wake it up! I go back in and check with "sudo ethtool eth0" and low and behold, it is back to only being "wol g", which is the default. For some reason it must bump back to default before going into suspend. NOTE, this is with suspend, not even a reboot or a shutdown! Even suspend will reset it to default. I have worked on adding a script to /etc/init.d, adding lines to /etc/rc.local, and adding lines to /etc/networking/interfaces, all with no change.

Any idea what is going on and why it is resetting wol back to default?? I know I should be happy at LEAST it does magic packet, but I want to know why it wont change.

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Server :: Difference Between VCS Commands In Solaris10 And Rhel5

Mar 3, 2011

I need to clarify a few things about Veritas Cluster Services Example There is a solaris10, 2node vcs cluster running. There is a Rhel5 2node vcs cluster running. Is ther any difference between VCS commands in solaris10 and rhel5. I heard that VCS commands are same for all the platforms, only configuration files location is differ. Is this correct.

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Ubuntu Networking :: Mii-tool Gives Error While Ethtool Shows Results?

Aug 31, 2010

I have upgraded to 10.04 from 9.10 after that, i get this strange issue.I have acutally asingned static address in the network manager applet.

Code:
mahiti@mahiti-admin:~$ sudo mii-tool -vv eth4
Using SIOCGMIIPHY=0x8947

[code]....

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Networking :: Packet Drop Measured By Ethtool, Tcpdump And Ifconfig?

May 20, 2010

I am running a test to determine when packet drops occur. I'm using a Spirent TestCenter through a switch (necessary to aggregate Ethernet traffic from 5 ports to one optical link) to a server using a Myricom card.While running my test, if the input rate is below a certain value, ethtool does not report any drop (except dropped_multicast_filtered which is incrementing at a very slow rate). However, tcpdump reports X number of packets "dropped by kernel". Then if I increase the input rate, ethtool reports drops but "ifconfig eth2" does not. In fact, ifconfig doesn't seem to report any packet drops at all. Do they all measure packet drops at different "levels", i.e. ethtool at the NIC level, tcpdump at the kernel level etc?nd am I right to say that in the journey of an incoming packet, the NIC level is the "so-called" first level, then the kernel, then the user application? So any packet drop is likely to happen first at the NIC, then the kernel, then the user application? So if there is no packet drop at the NIC, but packet drop at the kernel, then the bottleneck is not at the NIC?

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Networking :: Ethtool Command Not Changing Speed Of Ethernet Card?

Feb 14, 2011

I have a CentOS 5.5 machine (hosted at a remote hosting company) where "ethtool" reports that the eth0 device is currently in 10 Mbps mode, but the output indicates that it supports 100 Mbps. But if I try using ethtool to switch the device into 100 Mbps mode, it doesn't work; after running the command to switch it to 100 Mbps, ethtool reports the speed is still 10 Mbps:

[root@sls-eb5p17 network-scripts]# ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full

[Code]...

The man page at [URL]..ethtool seems to suggest that this should have worked. Any reason why the reported speed of the device didn't change? Changing other settings doesn't appear to work either, e.g. if I specify "duplex half" instead of "speed 100", eth0 still reports "Duplex: Full".

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Networking :: Packet Drop Measured By Ethtool / Tcpdump And Ifconfig

May 19, 2010

I have a question regarding packet drops. I am running a test to determine when packet drops occur. I'm using a Spirent TestCenter through a switch (necessary to aggregate Ethernet traffic from 5 ports to one optical link) to a server using a Myricom card. While running my test, if the input rate is below a certain value, ethtool does not report any drop (except dropped_multicast_filtered which is incrementing at a very slow rate). However, tcpdump reports X number of packets "dropped by kernel". Then if I increase the input rate, ethtool reports drops but "ifconfig eth2" does not.

In fact, ifconfig doesn't seem to report any packet drops at all. Do they all measure packet drops at different "levels", i.e. ethtool at the NIC level, tcpdump at the kernel level etc? And am I right to say that in the journey of an incoming packet, the NIC level is the "so-called" first level, then the kernel, then the user application? So any packet drop is likely to happen first at the NIC, then the kernel, then the user application? So if there is no packet drop at the NIC, but packet drop at the kernel, then the bottleneck is not at the NIC?

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Ubuntu :: Difference Between The Mac Terminal Commands And Internet Tutorials?

Dec 27, 2010

I'm currently looking at a Mac Terminal tutorial:[URL]... I want to learn about Linux Terminal, is there a difference between the Mac Terminal and Linux Terminal commands and Internet tutorials?

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General :: Difference Between The Commands "su" And "sudo -i"?

May 31, 2010

What is the difference between the commands "su" and "sudo -i"?

When I do sudo -i, it asks me the password and after typing my password, I login.

But when I do "su",it asks for my password, and I type the same password as for the sudo -i, but the terminal shows su: Authentication failure Why is it so? Does these commands have different passwords? If so I've forget password for "su". Now what to do?

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General :: Ethtool - WOL: What Does "wake On Physical Activity" Actually Mean And (how) To Use It

Oct 31, 2010

I am fighting with the WOL settings of my Ubuntu box at the moment. The idea is to have an HTTP/SVN server to sleep while it's unused and wake up when it's accessed. So far, wake-on-LAN works and is activated on startup:

[Code]....

As you can see, I also set the wol p flag ('wake on physical activity'). My assumption was that I could convince the device to wake up not only on magic packets, but on any network access. This, however, seems to be wrong.

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General :: Finding UNIX Networking Commands In Detail?

May 16, 2010

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Hardware :: Set Gigabit NIC To 1000 MB Setting Using Ethtool

Aug 28, 2010

I am trying to set my gigabit NIC to 1000 MB setting using ethtool. The only way I can get it to register that way is to turn off auto negotiation and that just kills my signal. Below is the output of the current settings and the commands I have attempted with zero success.

[Code]....

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Hardware :: [AMD] 79c970 [PCnet32 LANCE] Cant Set Speed 1000 With Ethtool?

Jun 2, 2010

I have fedora 12 installed in VMWare ESX on a Dell Optiplex machine with a Intel GBit lan.While transfering from fedora's vsftpd to my workstation trough a sitecom gbit switch i get a real bad performance, mostly not higher then 8mb/s. (btw on the same ESX i have Windows 2008 from which i get around 60mb/s)I have tried to set the eth0 to 1000Mb/s full duplex using ethtools but this fails (ethtool -s eth0 speed 1000 duplex full autoneg off). I keep recieving the following error:

Code:
Cannot get current device settings: Operation not supported
not setting speed

[code]....

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Fedora Networking :: What Is The Difference Between Wireless-N And -G?

Mar 19, 2010

The other day my 7 year old Belkin-G router packed up and I had to buy a new one. I purchased a ZyGEX wireless-N router that claims to be capable of 300mbs communication on my home network. I have five computers networked and on each of them the network speed is only 5 or 6 mps. The reason I ask this question is while I was only getting 54mps speed with my old router, it was much faster than this one.

I also am asking if anyone knows if the adapter on the laptop or desktop not being compatible with wireless-N could be causing this. Is there anyway to increase network speed in such a situation. I might mention that I am only talking about the speed within my home network, not the broadband download and upload speeds (which is also crap, but not related to this case.)

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Networking :: Eth0 Or Eth1 - What Is The Difference

Nov 30, 2010

I've noticed that when Linux boots on different machines or with different versions, the network card is assigned to eth0 or to eth1, when there is only one network card. What is the difference and is there any way to tell which one it will be for any machine or version?

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Apr 22, 2010

What are the function differences between VLAN and subnetting ?

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Jun 1, 2010

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Ubuntu Networking :: Difference Between PCMCIA And USB Adapters?

Jan 9, 2010

I am planning to buy a wireless device that supports both monitor mode and packet injection options for my project work..I came across this site while browsing

http://airodump.net/wifi-hardware-monitor-applications/

Is there any advantage of using USB Wifi Adapters over PCMCIA cards??your suggestion/experience in choosing a device in that link or recommend any other device?

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