hi friends,
can some tell me a very good software which can be used to take back-up.
automated back up.
the infrastrure is somewhat like this
12 windows clients connected to a linux server which has samba installed in it.
please tell me a few good options and the advanteges and disadvanteges of them incase u have used any.
i will install and try them out.
please help. this is a little bit in urgency.
thanks a lot in advance.
Anthony.
---------------------------------
Do you Yahoo!?
…
[View More]Shop for Back-to-School deals on Yahoo! Shopping.
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On Sunday 12 September 2004 11:54, Yashesh Bhatia wrote:
> hi.. u need a gmail invite ?
WILL U STOP POSTING THESE STUPID INVITES TO THE LIST.
U r wasting peoples mail bandwidth with this trash.
> --
>
> Message: 1
> Date: Sat, 11 Sep 2004 00:23:30 -0700 (PDT)
> From: Trevor Warren <trevorwarren(a)yahoo.com>
> Subject: Re: [ILUG-BOM] An Idea
>
>
> There just aren't many options
> available in our city where one can just walk in and
> buy a copy of Open Office or Fedora Core 2.
>
>
Outlets for Free/Open software
I think panwalla may be too much but college commercial or cooperative stores where student purchase stationary for the …
[View More]submissions will be adequately distributed in the town
50 engg colleges, another
12 polytechnics, and
60 B.Sc (IT) colleges will be sufficient.
An orderbook kept in these places and shops keeping the stuff on the shelf or calling on demend will do the job.
jitendra
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On Saturday 11 September 2004 23:36, Anil Kulkarni wrote:
> hello every1,
> i have been a newbee in linux & also on this grp,
> i c lot of events and meetings being organised, but from a
> newbeis point of view i would like to suggest u ppl to keep an
> seminar or a small workshop abt GNU/Linux....especially abt
> switching onto "Debian" from other linux distribution
Debian is as easy to install as any other. But ofcourse it works best if you understand a few things …
[View More]about your hardware and your software needs.
The simplest method is to read the installation howto at
http://www.debian.org/releases/stable/i386/install
Quite comprehensive. Ask questions after u have read that.
Debian can be installed on at least 11 archs and in umpteen permutations (from a 1.44mb floppy to a large cluster of load balancing fault tolerant server farm). If a desktop is all u require go with knoppix, which is based on debian and requires u to type "hdinstall" at the bash command prompt.
And best of all Debian is built based on policies decided by the user and developer community - no arbitary shifts and funny patches to make u their slave for life.
> i mean the installation GUI of other distributions like RH &
> Mandrake r very user friendly, but thats not the case with debian,
> and especially for a newbee its very difficult.
Yeah as long as u want sombody else to do the hardwork.
> There are lot of guys out there want to learn debian,
> unfortunately today in all classes they teach RH, its like "Linux =
> RH", moreover there r very few books or almost 'none' available in
> book stalls regarding debian, and its not possible for all ppl to
> just log onto net and read ebooks.
Dont think of using Debian without having a good net connection. Infact a desktop computer is nothing more than a glorified electronic typewriter without the internet.
> So i strongly feel that there shd be some event organised abt
> starting/learning debian.....and other such isuues which could be
> difficult for a newbee to configure on debian..I know that
> "Knoppix" could be a nice solution for this but still lets try to
> learn the typical debian way....
The typical way with GNU/Linux is self help. So go to that url and read.
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Hey everyone interested in developing the Linux C= ell OS...lets
do it !!
Anyone has ideas on how to get started.= Hey Latesh !! you seem to
be the one knowing most about it. Throw in a few= links. Im in!! But
lets not waste anymore time discussing how "we sho= uld someday
develop our own Linux Cell OS".......lets just start.
=
Raseel.
On Thu, 09 Sep 2004 Latesh G wrote :
&= gt;Hi Yogesh,
>
>Thanks for showin interest, I dont have = …
[View More]practical knowledge
about how to alter the kernel for Nokia but I have good= knowledge
about what features are available in particular phone(Nokia), wh= at
OS it has and what are its limitations also how we can enhance it. I
kno= w what kind of hardware is required for transffering stuff to
Cell (not MMS= n Tones it uses different Cable). I suppose if few
enthusiasts show inetre= st in this we can give it a try and I'm sure
we can do it as nothings impos= sible.
>
>Latesh.
>
>Yahoo! India Matri= mony: Find your life partneronline.
>--
>http://mm.ilug-b= om.org.in/mailman/listinfo/linuxers
Raseel Bhagat
[1] [adstream_nx.cgi=] =
References
1. 3D"http://clients.rediff.com/signature/tra
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hello every1,
i have been a newbee in linux & also on this grp,
i c lot of events and meetings being organised, but from a newbeis
point of view i would like to suggest u ppl to keep an seminar or a
small workshop abt GNU/Linux....especially abt switching onto "Debian"
from other linux distribution
i mean the installation GUI of other distributions like RH &
Mandrake r very user friendly, but thats not the case with debian, and
especially for a newbee its very difficult.
There are …
[View More]lot of guys out there want to learn debian, unfortunately
today in all classes they teach RH, its like "Linux = RH", moreover
there r very few books or almost 'none' available in book stalls
regarding debian, and its not possible for all ppl to just log onto
net and read ebooks.
So i strongly feel that there shd be some event organised abt
starting/learning debian.....and other such isuues which could be
difficult for a newbee to configure on debian..I know that "Knoppix"
could be a nice solution for this but still lets try to learn the
typical debian way....
Pls send ur suggestions abt this....
Thanku
Anil M. Kulkarni
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On Saturday 11 September 2004 20:47, Adil Kodian wrote:
> >the higher the signal bandwidth, the higher the SNR required to
> > extract info.
>
> actually it is the other way around - you can trade off SNR for
> bandwidth and vice versa - Higher the bandwidth and you can go with
I said the signal bandwidth, not the channel bandwidth. If your signal bandwidth=channel bandwidth you require a SNR=infinity.
> very low SNR. The SNR of the signal from the Mars Rover is just
&…
[View More]gt; slightly above white noise - so they use a terahertz bandwidth pipe
> for communication.
Exactly. Trahertz channel bandwidth for sending a few kilobits of data.
>
> netflix teamed up to offer similar service.
>
> >to-peer stuff like bittorrent. With newer modulation techniques
> > like
>
> UWB (1Gbps >bw and relatively "simple" recieving frontends)
> becoming commercially >viable "unlimited" bw for the masses is only
> an antenna away.
>
> ultrawideband is actually severely limited by distance.
Very true - for now.
> UWB is
> actually the perfect example of trading off bandwidth for SNR. UWB
> uses a spectrum that is many Ghz wide (not 1Gbps as data rate is
> not bandwidth)
> and therefore can support an SNR almost at the level
> of the surrounding noise. One of the features that most uwb
> proponents talk about (incorrectly) is the anonymity that this low
> SNR guarantees. UWB is therefore a very good replacement for the
> 802.11g that is used to solve in-home connectivity issues - but is
> hardly something that can be used for public broadcast.
Not neccessarily true. For now the power used is the microwatts range. Pumping up the power and frequency into the 25Ghz range should change things dramatically. Moon Bounce communications is already being used by hams in the 25 ~ 50 GHz region. Pure analog ofcourse.
> data rates
> are then defined according to shanon limit on how much information
> you can send in this slice of the spectrum.
>
>
> As a general comment - with the population density in India, and
> the amount of fiber put in the ground by reliance, wouldnt fiber
> based services be the way to go ? nothing can ever beat the data
> rate capability of fiber. Fiber can support a spectrum width of
> about 30Thz and that is only a limit imposed by the switching speed
> of the laser, and not the fiber. In any case, even with 30 thz, you
> can
> theoretically transmit all of mumbai's internet, cable and
> telephone traffic through a single fiber pair, provided it is fully
> utilized. so if youve laid fiber all over the city, the last mile
> problem is the only thing youve got to address with video delivery
> networks. satellites are really overkill for anything today.
That is precisely where UWB comes in. U dont require everybody's data to go up and down 36km to get things working.
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Hello Linuxers,
An internet connection for the common man, that provides a download speed of
1 GBytes per second is still a dream. Although satellite based net
connections exist, they have limitted subscribers due to high costs and
limitted bandwidth.
Nowadays the satellite broadcast frequencies are already in several Ghz, for
example the Ku band that transmitts DTH signals. Suppose we have a satellite
that transmitts at a frequency of say 10 Ghz. This translates to a digital
bit rate of 10 …
[View More]Gbits per second. After a little frequency beating, we get an
output signal of 8 Gbits per second or 1 GByte per second. This signal
inputs into the computer using a gigabit LAN.
The problem with normal internet is that it is an instantaneous system where
the data is downloaded as per the user requirement and different users have
different data to be simultaneously downloaded, thereby reducing bandwidth
per user. Suppose instead of this we have a system where the data is not
downloaded on demand but is serially transmitted at a high speed like 1
Gbytes per second. This means that in 24 hours, a channel of 1 Gbytes/sec
can transmitt 24 x 3600 Gbytes of data. This corresponds to 86400 Gbytes or
86.4 terabytes of data in 24 Hours. The user has no choice but to wait for
24 hours for the next broadcast in case he/she has just missed it. If the
satellite has 24 transponders then this data is split into 24 slots of one
hour each. So now the waiting peroid for the next download is only one hour.
If the transponders are 48 then this further reduces repeat download time to
half an hour only.
The final result is that the downloadable files are available to *everyone*
within the satellite footprint at a speed of 1 GBytes/second subject to a
maximum waiting period of 1 hour or 30 minutes. So everyone benefits equally
and parallely. This will bnefit remote schools, villages and anyone in any
remote part of the country.
All data will be linked to an index file that will be transmitted as a pilot
file. This file will be a mini website cum search engine classified into
topics and subtopics. These will link to the actual file and its
corresponding transponder and its broadcast time. A timer in the receiver
will mark this file and download it at its arrival time into a buffer
harddisk or directly into the computer depending on the hardware design.
This will be very usefull for downloading large files, cds, dvds and other
bulky data. Entire newspaper websites can be downloaded for liesure reading.
Imagine downloading 4 CDs of Linux within 3 seconds flat.
The cost for setting this system up will not be cheap but considering the
India-China-Asia-Pacific region alone, the number of subscribers will be in
millions or a billion. The receiver should not cost more than a DTH system
that is now available for Rs. 3000/-. Lets put it at 5000/- rupees. This is
just a one time investment. If every subscriber is charged max. 100 rupees
or 2$ per month, then this translates to approx. a billion dollars every
month from the entire region. This makes it the system for the common man.
There will be additional income from the website owners just as they
normally pay for web space and from advertisers. Ads will now be fullfledged
video films not dancing gif images. This system will peacefully co-exist
with the normal internet which will be still used for general purpose light
surfing, email, uploads, chat, online payments and registration.
The entire software for this can be developed using Linux which is stable
and open-source and the techies are available right here in India so no need
to import them. Equipment can be procured from China or elsewhere.
Please send your suggestions and criticisms and if you like the idea, you
can very well use it and help to provide a real high speed net for everyone.
Many of you guys are in high positions in big organisations and you can set
the ball rolling.
Thanks and Regards,
Rony.
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On Thursday 09 September 2004 23:38, Rony Bill wrote:
> Hello All,
>
> Modulation is used to transport a signal on a carrier. In the
> earlier days frequencies were low and for sat. transmission they
> had to be mounted on a carrier. But today the freq. that is used
> for communication is so high that it is a carrier in itself. Eg. a
> gigabit LAN passes data in gbytes per second.
The moment you switch some component of a (phase, amplitude, frequency) signal you get side …
[View More]bands which depends on the amount of shift of the components. The center freq is the carrier and the info in the side bands. The info size is fixed by natural principles and named after a gent called Nyquist several decades ago. Now this carrier and side band has to be transported from point a to b thru some physical medium like Cu cable, fibre, or space. The ability of the medium to allow the signal+sideband to pass without distortion determines the final throughput. Incase of satellites, it is atmospheric characteristics, solar flares, antenna size, available power, etc that determines the data throughput. In general the higher the signal bandwidth, the higher the SNR required to extract info. Hence more complex and expensive electronics.
> Someone told me, in
> China they use terabit LAN. Sat. freqs. are also in GHz. Nowadays
> digital formats in broadcasting have narrowed bandwidth utilisation
> yet provide high volume content. They are able to cut down on side
> bands.
>
> Can we have a satt. carrier signal that is a fixed frequency but is
> made up of a constant data train?
You can. Infact all known wireless data transmissions use exactly this method.
>As of now, what is the highest
> download speed achieved by satt. internet? What is the highest
> speed currently available in the satt. 'pipes' that big corporates
> use for international inter-office links
> ?
Afaik 384MBPS with a 6mtr dish. point to point.That is data from private networks. Dont know if anyone is interested in sending mundane webpages using this extremely expensive channel.
>
> Anyway, this is the technical part which will be looked after by
> satt. designers and other techies.
>
> What I want to know mainly is whether the concept of having such a
> ***high speed-high volume-repeatitive-serial file download
> facility*** is acceptable and worth implementing.
DAB on FM is already here. 250Kbps. Just get rid of the sattellite and things become practical. And adhoc wifi networks are even better when coupled with peer-to-peer stuff like bittorrent. With newer modulation techniques like UWB (1Gbps bw and relatively "simple" recieving frontends) becoming commercially viable "unlimited" bw for the masses is only an antenna away.
> Many have
> mistaken this for another television broadcast. It will be similar
> but not the same. TV is only live entertainment. This is a normal
> serious ultra high speed file download system for the common man at
HEHE. all the computers and nerds are working hard on the serious stuff so that everbody can have free time for entertainment. At least for me computers are serious entertainment.
> a very low monthly rental, for an *infinite number of users* within
> the footprint. That is the whole issue. How good and usefull is
> this idea?
>
> If the Govt. opens up the airwaves to private net operators then
> the entire 58 (60 - existing 2) terrestrial TV channel spectrum
> could be utilised for digital serial file broadcasting in a similar
Teletext. Another flop. Currently used in Britian (Afaik). 120bps.
> way but at a lower download speed than a satt.. Major companies
> like Red Hat, Novel, Microsoft and many many others can provide
> their heavy software files on the airwaves to be downloaded in our
> homes and offices in a fast and economical way. No wiring, no
> cable.
Carrier pigeon would be better. The bit error rates at BW more than a few 100 kbps over even short distance of 2 kms is so high that it would take forever to download one iso.
And cable internet is what (supposed to) works better.
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