Is the network configuration slowing down the pc?

Amund · External Since: Aug 18, 2009 Posts: 1

I wonder how i can find out what is slowing it down a pc, and how i
can tune
it to work faster. I have a slow working pc where cpu-utilization is
20-30%, and i hardly manage to get it higher.

*Could it be the network configurations that are slowing down the pc?
-What about DNS-problems?
When i use a webbrowser, it takes time to react and to start
downloading
pages, and then it works slow. I wonder if dns-resolutions are making
delays. I tried to sniff some traffic, and i can see the pc is doing a
lot
of non-sence dns-queries: There are a lot of noise about IPv6-
addresses.
And when i try to browse a server like online.no, my pc is doing query
for
online.no.homelinux.net. I guess this has some connection with that
the
name of my pc is of the form hostname.homelinux.net.
Why is the workstation querying for such stupid names, where it has
added
homelinux.net, to the name that it should resolve?
How can i uninstall everything that comes to IPv6 on workstations? I
don't
want my hosts to have absolutly any support for IPv6.
How can i configure the hostname on my pc in any clean way? I don't
find
any option to set the hostname in drakconf. I can do it with the
command
hostname. I just put on a name that resolves to the address of my eth0
via
public dns.
- What about network errors? I just tried to look for some network
errors.
The only thing i found, is that when i download certain webpages,
there are
some segments that are coming in wrong order. The fragment is coming
just
few milliseconds after the fragment it should precide. What kinds of
problems will this cause?

*Could it be any disk-systems that are making delays? I have always
been
afraid that local web-cashing can slow down a workstation. How can i
investigate if any io-waite is slowing down?

Bit Twister · External Since: Dec 19, 2004 Posts: 1894

This message is not archived

Amund · External Since: Mar 29, 2005 Posts: 10

Bit Twister wrote:

> On Tue, 18 Aug 2009 15:26:55 -0700 (PDT), Amund wrote:
>> I wonder how i can find out what is slowing it down a pc, and how i
>> can tune
>> it to work faster. I have a slow working pc where cpu-utilization is
>> 20-30%, and i hardly manage to get it higher.
>
> 1 Please look around in Mozilla and set line wrap at about 72 characters
> per line. Some subject matter experts may not bother to respond to
> your post if they have to reformat your text.
Normally i use knode. It is wrapping at 76 chars.

>
> 2 You also may want to consider using a real Usenet Server to post
> questions to Usenet. There are free Usenet servers you can access.

That is what i wished for, for a long time. I have spend some time to find a
free server that works, but the best servers that i have found, do not
allow me to post messages. It is time consuming to look around for a free
server.
(My ISP provide a news service, but it is blocked for subscribers with fixed
ip-addresses. I need an address from an dynamic pool, to get access.)

> Some people automatically kill file any posts from google.com.
>
> 4 Always post your Vendor Distribution and version. Different releases
> may have different config files or/and contents and values.
>
> 5 net etiquette/Newsgroup tip:
>
> Multi-posting is considered antisocial on Usenet.
>
> If you want to send the same message to more than one newsgroup,
> CROSSPOST! And if you crosspost, provide a Followup newsgroup.
I just posted to this group by mistake.

>
> Some will argue that you not even crosspost because of the amount/type
> of newsgroups that we have today.
>
> As an example to post to "comp.os.linux.security", and
> "alt.security", use the following Newsgroups line:
> Newsgroups: comp.os.linux.security,alt.security
> Followup-To: comp.os.linux.security
>
> See http://www.cs.tut.fi/~jkorpela/usenet/xpost.html
>
> Also, other first group readers see the follow up answers from the
> second group and do not have to provide the same answer. Once a first
> group reader has "read" a message in one group, they do not have to
> see it again in the other group unless someone has provided a reply.

Thanks for lot of useful tips.

Bit Twister · External Since: Dec 19, 2004 Posts: 1894

On Fri, 21 Aug 2009 00:41:57 +0200, Amund wrote:

>> 2 You also may want to consider using a real Usenet Server to post
>> questions to Usenet. There are free Usenet servers you can access.
>
> That is what i wished for, for a long time. I have spend some time to find a
> free server that works, but the best servers that i have found, do not
> allow me to post messages. It is time consuming to look around for a free
> server.

http://www.eternal-september.org/

Moe Trin · External Since: Aug 12, 2004 Posts: 1732

On Fri, 21 Aug 2009, in the Usenet newsgroup alt.os.linux.mandrake, in article
<YOednfpl3fqoTBDXRVnzvQA.DeleteThis@telenor.com>, Amund wrote:

>Bit Twister wrote:

>> 2 You also may want to consider using a real Usenet Server to post
>> questions to Usenet. There are free Usenet servers you can access.

>That is what i wished for, for a long time. I have spend some time to
>find a free server that works, but the best servers that i have found,
>do not allow me to post messages. It is time consuming to look around
>for a free server.

Time consuming?

Results 1 - 10 of about 4,080,000 for free Usenet server post. (0.34
seconds)

Results 1 - 10 of about 3,520,000 for open Usenet server post. (0.34
seconds)

Results 1 - 10 of about 6,010,000 for open Usenet server list. (0.33
seconds)

Results 1 - 10 of about 605,000 for free Usenet server list. (0.33
seconds)

Results 1 - 10 of about 535,000 for free Usenet server web. (0.32
seconds)

Results 1 - 10 of about 5,330,000 for open Usenet server web. (0.33
seconds)

http://www.dmoz.org/Computers/Usenet/Public_News_Servers/)

[compton ~]$ grep news .newsrc | grep -c free
42
[compton ~]$

alt.free.newsservers

While Blinky's own web site at <http://improve-usenet.org/> seems to
have expired so the UIP pages there are no longer available, looking
for the words 'improve Usenet' should also turn up a few hits.

>(My ISP provide a news service, but it is blocked for subscribers
>with fixed ip-addresses. I need an address from an dynamic pool, to
>get access.)

Perhaps it's time to have a discussion with your ISP - or their
replacement.

Old guy