Re: slow net in ubuntu
- From: Bit Twister <BitTwister@xxxxxxxxxxxxxxxx>
- Date: Wed, 31 Jan 2007 05:44:49 -0600
On 31 Jan 2007 00:21:02 -0800, Saurav wrote:
Dear friends, I use ubuntu; but my internet is very slow here
(compared to in windows) and the download speed(30kbps) is quite less
than in windows(200-300kbps); I use the same dns in linux as in
windows; and I have already disabled IPv6 from firefox (about:config --
network.dns.disabl.....). But I have still been suffering from thisproblem.
Kindly help me.
Well, show us your network settings
-------- standard debug network problem text/script follows: ------------
dump_net.txt version 2.2
Once you get your network running you may want to run xx one last time
and save the output file for disk crash/new installs :)
Might not hurt to save xx for one of a network debugging checklist step.
The following script dumps your hardware status, network settings and
config files used in network setup. We need them to troubleshoot your
problem.
If you are having to use windows to access Usenet:
Format a diskette on the windows system.
Copy the following xx.txt script into xx.txt using notepad.exe
then save xx.txt to the diskette.
Feel free to include the #**** start/end xx.txt script **** lines.
If using linux for usenet access, su - root, copy script text into xx
chmod +x xx
./xx
and include a.txt (if on linux) or dosa.txt (if on windows) in your reply.
NOTE: to become root, you need to do a
su - root
not su root
#******** start of xx.txt script ****************
_out_fn=a.txt
function cat_fn
{
_fn=$1
if [ -f $_fn ] ; then
echo ======== cat $_fn ========== >> $_out_fn
cat $_fn >> $_out_fn
fi
} # cat_fn
function grep_fn
{
_fn=$1
if [ -e $_fn ] ; then
echo "======== tail -18 $_fn ==========" >> $_out_fn
tail -18 $_fn >> $_out_fn
fi
} # grep_fn
#********************************
# check if commands are in $PATH
# and if not add their path to $PATH
#********************************
_path=""
type ifconfig > /dev/null 2>&1
if [ $? -ne 0 ] ; then
_path="${_path}/sbin:"
fi
type cat > /dev/null 2>&1
if [ $? -ne 0 ] ; then
_path="${_path}/bin:"
fi
type id > /dev/null 2>&1
if [ $? -ne 0 ] ; then
_path="${_path}/usr/bin:"
fi
if [ -n "$_path" ] ; then
PATH=${_path}$PATH
export PATH
fi
#********************************
# check if root and logged in correctly
#********************************
_uid=$(id --user)
if [ $_uid -ne 0 ] ; then
echo " "
echo "You need to be root to run $0"
echo "CLick up a terminal and do the following:"
echo " "
echo "su - root"
echo "$PWD/xx"
exit 1
fi
root_flg=1
if [ -n "$LOGNAME" ] ; then
if [ "$LOGNAME" != "root" ] ; then
root_flg=0
fi
fi
if [ -n "$USER" ] ; then
if [ "$USER" != "root" ] ; then
root_flg=0
fi
fi
if [ $root_flg -eq 0 ] ; then
echo " "
echo "Guessing you did a su root"
echo "instead of a su - root"
echo "please exit/logout of this session and do the following:"
echo " "
echo "su - root"
echo "$PWD/xx"
echo " "
exit 1
fi
#********************************
# main code starts here
#********************************
date > $_out_fn
chmod 666 $_out_fn
if [ -n "$_path" ] ; then
echo ======== echo $PATH ========== >> $_out_fn
echo $PATH >> $_out_fn 2>&1
fi
cat_fn /etc/product.id
echo ======== cat /etc/*release ========== >> $_out_fn
cat /etc/*release >> $_out_fn 2>&1
echo ======== uname -rvi ============= >> $_out_fn
uname -rvi >> $_out_fn
echo ======== cat /etc/*version ========== >> $_out_fn
cat /etc/*version >> $_out_fn 2>&1
echo ======== cat /proc/version ========== >> $_out_fn
cat /proc/*version >> $_out_fn 2>&1
type lsb_release > /dev/null 2>&1
if [ $? -eq 0 ] ; then
echo ======== lsb_release -a ========== >> $_out_fn
lsb_release -a >> $_out_fn 2>&1
fi
echo " " >> $_out_fn
echo msec security level is $SECURE_LEVEL >> $_out_fn
type chkconfig > /dev/null 2>&1
if [ $? -eq 0 ] ; then
echo ======== chkconfig --list ========== >> $_out_fn
for _serv in avahi named tmdns ; do
chkconfig --list | grep $_serv > /dev/null 2>&1
if [ $? -eq 0 ] ; then
echo "Double check if /$_serv/ that not running" >> $_out_fn
fi
done
chkconfig --list | grep :on >> $_out_fn
chkconfig --list | tail -15 >> $_out_fn
else
echo ======== ls -o /etc/rc2.d ========== >> $_out_fn
for _serv in avahi named tmdns ; do
ls /etc/rc2.d/S* | grep $_serv > /dev/null 2>&1
if [ $? -eq 0 ] ; then
echo " /$_serv/ is running" >> $_out_fn
fi
done
ls -o /etc/rc2.d >> $_out_fn
fi
_fn=/etc/nsswitch.conf
if [ -e $_fn ] ; then
echo ======== grep hosts: $_fn ========== >> $_out_fn
grep hosts: $_fn >> $_out_fn
fi
cat_fn /etc/resolv.conf
echo ======== hostname ========== >> $_out_fn
hostname >> $_out_fn
cat_fn /etc/hostname
cat_fn /etc/HOSTNAME
ls /etc/mod*.conf > /dev/null 2>&1
if [ $? -eq 0 ] ; then
echo "======== grep eth /etc/mod*.conf ==========" >> $_out_fn
grep eth /etc/mod*.conf >> $_out_fn
fi
cat_fn /etc/dhclient-enter-hooks
cat_fn /etc/host.conf
echo ================ ifconfig -a =============== >> $_out_fn
ifconfig -a >> $_out_fn
echo ============== route -n ================= >> $_out_fn
route -n >> $_out_fn
cat_fn /etc/sysconfig/network/routes
cat_fn /etc/sysconfig/network
echo ============== head -15 /etc/hosts =============== >> $_out_fn
head -15 /etc/hosts >> $_out_fn
cat_fn /etc/network/interfaces
cat_fn /var/run/network/ifstate
_cmd=""
type ethtool > /dev/null 2>&1
if [ $? -eq 0 ] ; then
_cmd="ethtool"
fi
type mii-tool > /dev/null 2>&1
if [ $? -eq 0 ] ; then
_cmd="mii-tool -v"
fi
if [ -z "$_cmd" ] ; then
echo ======== mii-tool/ethtool NOT INSTALLED ========== >> $_out_fn
fi
for nic in 0 1 2 ; do
if [ -n "$_cmd" ] ; then
$_cmd eth$nic > /dev/null 2>&1
if [ $? -eq 0 ] ; then
echo ======== $_cmd eth$nic ========== >> $_out_fn
$_cmd eth$nic >> $_out_fn
fi
fi
cat_fn /etc/sysconfig/network-scripts/ifcfg-eth$nic
ifconfig eth$nic > /dev/null 2>&1
if [ $? -eq 0 ] ; then
set $(ifconfig eth$nic | tr [A-Z] [a-z])
cat_fn /etc/sysconfig/network/ifcfg-eth-id-$5
fi
grep_fn /var/lib/dhcp/dhclient-eth${nic}.leases
grep_fn /etc/dhcpc/dhcpcd-eth${nic}.info
done
cat_fn /etc/hosts.allow
cat_fn /etc/hosts.deny
echo "======= end of config/network data dump ===========" >> $_out_fn
_dos_fn=$PWD/dos${_out_fn}
awk '{print $0 "\r" }' $PWD/$_out_fn > $_dos_fn
chmod 666 $_dos_fn
echo " "
echo "If posting via linux, post contents of $PWD/$_out_fn"
echo "You might want to copy it to your account with the command"
echo "cp $PWD/$_out_fn ~your_login"
echo " "
echo "If posting via windows, post contents of $PWD/$_dos_fn"
echo " "
echo "If using diskette,"
echo "Copy $_dos_fn to diskette with the following commands:"
echo " "
echo "mkdir -p /floppy"
echo "mount -t auto /dev/fd0 /floppy"
echo "cp $_dos_fn /floppy"
echo "umount /floppy "
echo " "
echo "and $_dos_fn is ready for windows from diskette"
echo " "
#*********** end of dump xx.txt script *********
and then copy xx.txt to the diskette.
On some linux distributions, you may need to get into the User/Group
screen, show all users, double click root, create the password, and
enable root. Root's password should never be the same as anyone elses.
To move xx.txt from diskette to the linux box, click up a linux terminal
su - root
(root's passwd)
mkdir -p /floppy
mount -t auto /dev/fd0 /floppy
tr -d '\015' < /floppy/xx.txt > xx
chmod +x xx
../xx
Back on the windows OS, you can cut/paste the a:\dosa.txt into your reply
under windows.
Do not attach it.
If you are dual booting the box, you can copy xx.txt to linux from windows.
Note: The following assumes /dev/hda1 is where windows is installed on the
first partition on the C: drive
mkdir -p /doze
mount -t auto /dev/hda1 /doze
tr -d '\015' < "/doze/whever/you saved/xx.txt" > xx
umount /doze
On windows you can read dosa.txt from a linux partition if you installed
windows linux driver from
http://uranus.it.swin.edu.au/~jn/linux/explore2fs.htm
.
- References:
- slow net in ubuntu
- From: Saurav
- slow net in ubuntu
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