Hi, we have a server which when we check time it has different time for different user. When we're using root user, the time is correct but when we login as individual user the time is delayed 1 hour. How can we correct the time when we're using individual user like my own user? Please help me to... (4 Replies)
Hi,
Please could someone advise I'm trying to use winscp from a Window server 2008 R2, but i need to add the authentication key to access the linux rh 5.4 servers ?
What is the best way of approaching this ?
If there are any web links that could help me do this, that would be good.
... (1 Reply)
We would be migrating unix solaries to Linux redhat.
Basically source is unix and target is linux.
i would like to copy entire file system unix/source/* to target linux/souce/*
but target linux has only folder setup so what ever files copied need to be placed in the linux server with same... (8 Replies)
I am trying to connect to Windows server via Linux server through a script and run two commands " cd and ls " But its giving me error saying " could not start the program" followed by the command name i specify e g : "cd"
i am trying in this manner "
ssh username@servername "cd... (5 Replies)
Hi All,
I am generating report in a Linux server and once the report is generated the report(.txt file) needs to be automatically saved in a Windows servers.
So i am looking for a script to transfer the file automatically from Linux server to Windows server?
Please advise.
Thanks... (3 Replies)
Hi my name is Manju.
->I have configure the two way authentication on my linux server.
->Now I am able to apply two way authenticator on particuler user.
->Now I want to map this linux server to my AD server.
->Kindly tell me how to map AD(Active Directory) with this linux server.
... (2 Replies)
Hi my name is Manju.
->I have configure the two way authentication on my linux server.
->Now I am able to apply two way authenticator on particuler user.
->Now I want to map this linux server to my AD server.
->Kindly tell me how to map AD(Active Directory) with this linux server.
... (0 Replies)
Hi,
I am a newbie and has been given a task to connect to a windows server from a linux server (using putty of course; for file transfer) that too passwordless.
Searching through google I found "ssh-keygen" but this also couldn't work because as I tried ssh <username>@<windowsServerIP>, it says... (5 Replies)
Above is a search string I tried on Google that produced lots of hits but not much in the way of clues. And I wasn't looking for clues.
So I decided, for the first time, to ask the question here. What are the correct permissions for the .bash_aliases file?
iwrong (1 Reply)
Discussion started by: iamwrong
1 Replies
LEARN ABOUT PLAN9
tc-drr
TC(8) Linux TC(8)NAME
drr - deficit round robin scheduler
SYNOPSIS
tc qdisc ... add drr [ quantum bytes ]
DESCRIPTION
The Deficit Round Robin Scheduler is a classful queuing discipline as a more flexible replacement for Stochastic Fairness Queuing.
Unlike SFQ, there are no built-in queues -- you need to add classes and then set up filters to classify packets accordingly. This can be
useful e.g. for using RED qdiscs with different settings for particular traffic. There is no default class -- if a packet cannot be classi-
fied, it is dropped.
ALGORITHM
Each class is assigned a deficit counter, initialized to quantum.
DRR maintains an (internal) ''active'' list of classes whose qdiscs are non-empty. This list is used for dequeuing. A packet is dequeued
from the class at the head of the list if the packet size is smaller or equal to the deficit counter. If the counter is too small, it is
increased by quantum and the scheduler moves on to the next class in the active list.
PARAMETERS
quantum
Amount of bytes a flow is allowed to dequeue before the scheduler moves to the next class. Defaults to the MTU of the interface. The
minimum value is 1.
EXAMPLE & USAGE
To attach to device eth0, using the interface MTU as its quantum:
# tc qdisc add dev eth0 handle 1 root drr
Adding two classes:
# tc class add dev eth0 parent 1: classid 1:1 drr
# tc class add dev eth0 parent 1: classid 1:2 drr
You also need to add at least one filter to classify packets.
# tc filter add dev eth0 protocol .. classid 1:1
Like SFQ, DRR is only useful when it owns the queue -- it is a pure scheduler and does not delay packets. Attaching non-work-conserving
qdiscs like tbf to it does not make sense -- other qdiscs in the active list will also become inactive until the dequeue operation suc-
ceeds. Embed DRR within another qdisc like HTB or HFSC to ensure it owns the queue.
You can mimic SFQ behavior by assigning packets to the attached classes using the flow filter:
tc qdisc add dev .. drr
for i in .. 1024;do
tc class add dev .. classid $handle:$(print %x $i)
tc qdisc add dev .. fifo limit 16
done
tc filter add .. protocol ip .. $handle flow hash keys src,dst,proto,proto-src,proto-dst divisor 1024 perturb 10
SOURCE
o M. Shreedhar and George Varghese "Efficient Fair Queuing using Deficit Round Robin", Proc. SIGCOMM 95.
NOTES
This implementation does not drop packets from the longest queue on overrun, as limits are handled by the individual child qdiscs.
SEE ALSO tc(8), tc-htb(8), tc-sfq(8)AUTHOR
sched_drr was written by Patrick McHardy.
iproute2 January 2010 TC(8)