20 Most Recent Red Hat Enterprise Linux ES Basic Edition Questions & Answers


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Red Hat... | Answered on Jun 17, 2011


i dont think i work on red hat,i saw on huawei website
  • GSM/GPRS/EDGE (850/900/1800/1900MHz)
  • Support 236.8Kbps high speed services
  • Support SMS and Voice (Optional) service
  • Plug & Play
  • Data statistics
  • Support Windows 2000/XP/Vista and Mac Operating Systems

Red Hat... | Answered on Feb 08, 2010


Linux kernel is made such that no virus can affect any of your files
So in my opinion you dont need an antivirus at all but if you need it bad then clamAV is gud for unix but you need to compile its binaries for your distribution of linux

I hope this info was helpfull
Dont forget to rate
Thnx
Waqar

Red Hat... | Answered on Jul 17, 2009


- What make/model of NIC?

- Cable or DSL Internet access?

- Is there a router in the picture, or does the computer connect directly to your cable/dsl modem?

- Are you using DHCP or static IP assignment?

If you're using static IP addressing, check out some of the suggestions in this article:

Created: 9/05/02 Revised: 4/6/04


Basic PCI Network Interface Card (NIC) Configuration and Troubleshooting:


As different distros use different GUI (graphical) network configuration programs, the following instructions are
command-line based, and as such should work for most distros. If you boot directly into the GUI (KDE, Gnome, etc.)
as opposed to booting into a non-graphical runlevel, open a terminal window and type the given commands from there.
Much of the following can only be done as root, so either log in as root, or "su" to root if logged in as a non-root user.

*Note: some commands can only be run from root's login shell. When the su command is used by itself, it allows a non-root
user to become root, but only from within the user's own login shell. To gain a full root login shell without having to log out
and log back in as root, use the "-" option when issuing the su command: su - .

If you have only 1 NIC installed, it will be designated "eth0"; additional NICs will be designated eth1, eth2, etc.

Before doing any of the following, *please* check the Hardware Compatibility List at your distro's support site.
If your particular make/model of NIC is not listed as being compatible with your distro, there is good chance that
it may not work at all, or that you may have to take extra steps (such as downloading a special driver/module) in
order to get it working. Considering the fact that NICs are fairly inexpensive, it is often just not worth spending
time and energy trying to "force" an unsupported card to work.
------------------------------------------------------------------------------------------------------------------------------


1. If, on bootup, you see a message similar to "Bringing up interface eth0: FAILED", it is very possible that you have
a resource (IRQ or I/O address) conflict. Turn off Plug-N-Play support in your BIOS before proceeding further; BIOS PNP
can often cause problems with PCI devices under a non-Windows OS. If you dual-boot Windows and Linux, don't worry- your
PCI devices should still work in Windows with BIOS PNP disabled, as the PNP functionality of the Windows OS itself will
perform the necessary resource allocation.

*Note: If you are connecting to a network or ISP via DHCP, and you see a message on bootup similar to "Determining IP
information for device eth0: FAILED", that can indicate a problem with your DHCP configuration (or the DHCP server)
This article doesn't deal with DHCP issues, but I hope to be able to post one that does in the future.


2. Use one of the following commands to verify that your card is at least basically identifying itself to the system:

lspci -vv |less
less /proc/pci
cat /proc/pci

In the resulting output, look for the "Ethernet Controller" entry. It should contain information about your model of card
and/or its chipset, as well as IRQ, I/O port, and memory address values.


3. Run the ifconfig command; information concerning your NIC should appear in the resulting output. You should also
see stats for the loopback (lo) device 127.0.0.1. If you've already tried to enter your IP info (inet addr, Bcast, Mask)
through a GUI network configuration utility, verify that those values are correctly reflected in ifconfig's output. Also
check for RX/TX errors and collisions. If eth0 is not listed when you run ifconfig, try "ifconfig -a"; the "-a" option forces
ifconfig to report all network interfaces, active or not. If eth0 appears only when you run ifconfig with the -a option, it is
definitely not correctly configured.


4. Verify that the correct module is being loaded for your ethernet card by issuing the "lsmod" command; you should see the module
name in the resulting list of loaded modules. If not, issue the following two commands and try again:

depmod -ae
modprobe <name of your NIC's module>

*Note- documentation concerning module loading will often refer to the "insmod" command, but use modprobe instead if it's available.
Basically, insmod is not as "intelligent" as modprobe in the fact that it doesn't try to resolve module dependencies (where the
successful loading of a given module "depends" on another module being loaded first).

If the module appears as loaded after that, check your /etc/modules.conf (/etc/conf.modules in some distros)file to make sure that it has
an entry for the module; this will load the module automagically each time you boot. The line will look like this:

alias eth0 <name of your NIC's module>

If the line doesn't exist, add it by editing the file with your favorite text editor.


5. Run the following two commands:

less /proc/interrupts
less /proc/ioports

For the first command, note the IRQ assigned to eth0; verify that it matches the Interrupt value listed when you ran the ifconfig
command, and note if the assigned interrupt is being shared with another device. If so, this doesn't necessarily indicate a problem,
but it can.
For the second command, make sure that the address range of your Ethernet controller doesn't conflict with/overlap that of another
device. Also make sure that the start of the address range corresponds to the Base address value shown for eth0 when you ran ifconfig.


6. If any of the above steps yield errors or indicate conflicts even after you've turned off PNP support in the BIOS, try physically
rearranging the slot order of your PCI cards; doing so can force a reallocation of resources to devices on the PCI bus.


7. Once you're sure that the NIC is correctly configured and the module is properly loaded, you can try to bring the card up with
the following command:

ifconfig eth0 <the NIC's IP address> netmask <the appropriate netmask> up

If you get no errors, you should at least then be able to ping the IP address of the NIC.

--------------------------------------------------------------------------------------------------------------------------------

Distro-specific configuration files:

------------------------------------

Redhat, Mandrake, and a few other distros use the following two basic network interface configuration files:

/etc/sysconfig/network
/etc/sysconfig/network-scripts/ifcfg-eth0

The format of the files may vary slightly across distros/versions, but the the pertinent contents of the files should be very similar to:

/etc/sysconfig/network:

NETWORKING=yes
FORWARD_IPV4="no"
HOSTNAME="your_machine's_hostname"
DOMAINNAME="your_domain_name" ("localhost" is valid here)
GATEWAY="IP_address_of_your_gateway_machine/device" (if applicable)
GATEWAYDEV="eth0"


/etc/sysconfig/network-scripts/ifcfg-eth0:

DEVICE='eth0'
BOOTPROTO='none'
BROADCAST='broadcast_address_of_your_IP_address_range'
NETWORK='network_address_of_your_IP_range'
ONBOOT='yes'
TYPE='Ethernet'
USERCTL='no'
IPADDR='your_machine's_IP_address'
GATEWAY='IP_address_of_your_gateway_machine/device'
NETMASK='netmask_of_your_IP_range'

--------------------------------------------------------------------------------------------------------------------------------

An explanation of IP addressing as a whole (including terms such as "netmask", "network address", "broadcast address",etc.) is well beyond
the scope of this Help File. However, the following sites provide some good background information:

http://www.cisco.com/warp/public/701/3.html
http://www.ipprimer.com/section.cfm
http://www.oreilly.com/catalog/coreprot/chapter/appb.html
http://linux-ip.net/html/index.html

--------------------------------------------------------------------------------------------------------------------------------

- Further resources, including NIC driver source code and diagnostic utilities can be found at http://www.scyld.com/network.
* Note that as of 3/04 the Scyld site appears to have undergone changes; some links on the above page are broken.

--------------------------------------------------------------------------------------------------------------------------------

#include <disclaimer.h>

This is, as a whole, a work in progress. It might (and probably does) contain omissions and/or slight inaccuracies.
However, none of the suggestions given here will do any harm to your system if performed correctly.

Being a work in progress, any suggestions/corrections/critcisms are more than welcome. If you've noticed any errors in the above,
or just have something constructive to suggest, feel free to email me:

david@dmrca.com







Red Hat... | Answered on Jul 02, 2009


That means HDD 0 has failed and requires replacement.

Red Hat... | Answered on Feb 13, 2019


You'll do so by the following commands (one line is one command then press Enter)

mkdir /home/Your_User_Name/"Idea Net Setter"

cd /media
cd "Idea Net Setter"
ls -l
cp -vf Linux/* /home/Your_User_Name/"Idea Net Setter"/

chmod 700 "Idea Net Setter"/*

su

sh install

Red Hat... | Answered on Apr 28, 2014


What do you mean it wont download.

Can you surf? if yes... Check parental permissions. Goto System Preferences (the gear box) --> Parental Controls. Check to see if your account is not permitted to do certain tasks.

Red Hat... | Answered on Apr 27, 2014


you might have to re-install your operating system ,choosing the correct keyboard layout/country at boot time,you will for sure have the option to do this,do not press any keys unecessarily whilst the system is configuring.
Good Luck

Davey Snake!!

Computers &... | Answered 5 hours ago


I bought the light up cup holders for my car. I am very disappointed one works and the other one doesn't. I waited a long time for them. I was so excited to get them. This is a big let down. ??????????

Computers &... | Answered 12 hours ago

Tip

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I try most of the sites, some are not on the list due to word content, so I listed most all websites. I found the sites with the following with these extension like the following sites: .com, .org, .net, .info, and certain sites with countries either beginning or ending in two letters. SAMPLE: [??].. thank you rod


14 hours ago | Computers & Internet

Tip

How to Write a Great Answer on the FixYa Site.


I recently answered this question on the Site, and thought that I would take a moment to share it with everybody, as a TIp, with the hope that some new experts might take notice.

My intention here is to show the question, and dissect my answer, step by step.

New experts, using a method such as this could benefit greatly...This method could generate you a signifiecnt amount of 4 Thumb ratings.

(Please note that my answers are by no means "the only way"; this is simply a demonstration module)

Here is the link to the original question:

http://www.fixya.com/cars/t6586791-break_light_coming_dash_goes_off


By valeriecares on Oct 27, 2010

Break light coming on dash. Goes off and on. Is it safe to drive? What do I check for under the hood? and where?

My answer is in the BOLD TEXT, commentary continues in "(...parenthesis)"

Hello. Welcome to FixYa. Please allow us to assist you.

(...Note the greeting. Saying "Hello", and "Welcome" makes the askers feel that we are talking to them; the references to "Us", and "We" emphasize that the Site is more than one person. It also emphasizes the fact that others experts are available in this area, as well as other areas. This creates the possibility of a returning customer)

(...The "Please allow us to assist you" reinforces the fact that we are going to resolve the issue)

We are sorry that you are having issues with your Toyota.

(...An apology, a 'without taking blame' statement displays concern on our part)

What you are describing, the brake light illuminating on and off may be due to a low brake fluid condition in the brake master cylinder reservoir.

(...Here is where we voice our best opinion; in this case, this is more than likely the asker?s reason for asking for help).

(...Now, we follow up our opinion, with some factual statements)

There is a sensor in the master cylinder that monitors the quantity of the brake fluid present. As the brakes wear, the fluid level drops proportionately.

(...As shown below, we can give the asker the ability to observe the condition first hand.

NOTE: This creates a feeling of relief to the asker when they see that what we are talking about, is in fact the cause of their issue)

What you can do:
Open the hood, and closely examine the fluid level in the plastic reservoir on the brake master cylinder. It is located at the engine side of the firewall, pretty much in line with your turn signal switch. Look at the side of the cylinder reservoir. There will be a "MAX" line, and a "MIN" line. The "Max" is the proper fill level.

(...Being as clear and concise as possible, we try to 'walk' the asker where we want them to go, to see what we want them to see)

If the fluid level is close to the "Min" line, you probably need some front brake pads replaced. This indicates a low fluid condition in the reservoir.

(...Adding some precautions, to protect the property of the Askers is a good thing. Always think as to what the asker could do wrong, some people do not have your talents, skills and abilities, and could damage their item or property if left to their own thinking)

We would not suggest 'topping off' the fluid, just to extinguish the light. When you do get your brake pads replaced, the extra fluid will be forced out of the top of the reservoir, and the brake fluid will get on the paint under your hood. Brake fluid will damage your paint.

(...Adding your best suggestion, as shown below, allows the Asker to make their own choice on how they will proceed with your assistance..this also gives empowerment to the asker.)

Suggestion: Get the front brake pads checked; replace them if they are worn.

(...A polite closing, as shown below, with a request for answering other questions, will create a feeling of you are still there for the asker, if they need you for further information.)

Thanks for choosing FixYa today. If you have any other questions, please feel free to get back to me

..........Hopefully, this little tip will help some people out, to better their answers. Better answers will get you higher ratings...and the customers will return for more assistance.

It all starts with a great answer.....Yours.

Thanks for reading my Tip!

Regards,

Toyota Ed

15 hours ago | Computers & Internet

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