RE: Re: DNS Woes

[Cowles, Steve]

Mark Neidorff wrote:
> On Sun, 28 Mar 2004 [e-mail] wrote:
>
> route -n yields
> Destination    Gateway       Genmask        Flags    Metric    Ref    Use

IFace
> 24.159.200.0   0.0.0.0       255.255.252.0  U        0         0      eth0
> 127.0.0.0      0.0.0.0       255.0.0.0      U        0         0      lo
> 0.0.0.0        24.159.200.1  0.0.0.0        UG       0         0      eth0
>
> "route print" on Windoze yields:
> Active Routes:
> Network Destination        Netmask          Gateway       Interface

Metric
>       0.0.0.0          0.0.0.0     24.159.200.1  24.159.201.xxx

20
>  24.159.200.0    255.255.252.0   24.159.201.xxx  24.159.201.xxx

20
> 24.159.201.xxx  255.255.255.255        127.0.0.1       127.0.0.1

20
> 24.255.255.255  255.255.255.255   24.159.201.xxx  24.159.201.xxx

20
>     127.0.0.0        255.0.0.0        127.0.0.1       127.0.0.1

1
>     224.0.0.0        240.0.0.0   24.159.201.xxx  24.159.201.xxx

20
> 255.255.255.255  255.255.255.255   24.159.201.xxx  24.159.201.xxx

1
> Default Gateway:      24.159.200.1
>
> Is it a typo on your part????? You lease an ip in the
> 24.159.201 range, but your nic in fedora is in the
> 24.159.200 range!!!!!  That would mess everything up.
>
> Mark

Given the netmask (255.255.252.0), the IP/network address shown above looks
to be correct to me.

Long pause...

Well, except for windoze brain dead TCP/IP stack calculating a classful
broadcast address instead of classless. The correct broadcast address (given
the netmask) should be 24.159.203.255. Oh, and how about the 20 hop metric.
Gezzz! I'm surprised this system is even working on the network.

Steve Cowles

DNS Woes

[Jeff Vian]

Cowles, Steve wrote:
> Mark Neidorff wrote:
> > On Sun, 28 Mar 2004 [e-mail] wrote:
> >
> > route -n yields
> > Destination    Gateway       Genmask        Flags    Metric    Ref    Use
>
> IFace
> > 24.159.200.0   0.0.0.0       255.255.252.0  U        0         0      eth0
> > 127.0.0.0      0.0.0.0       255.0.0.0      U        0         0      lo
> > 0.0.0.0        24.159.200.1  0.0.0.0        UG       0         0      eth0
> >
> > "route print" on Windoze yields:
> > Active Routes:
> > Network Destination        Netmask          Gateway       Interface
>
> Metric
> >      0.0.0.0          0.0.0.0     24.159.200.1  24.159.201.xxx
>
> 20
> > 24.159.200.0    255.255.252.0   24.159.201.xxx  24.159.201.xxx
>
> 20
> > 24.159.201.xxx  255.255.255.255        127.0.0.1       127.0.0.1
>
> 20
> > 24.255.255.255  255.255.255.255   24.159.201.xxx  24.159.201.xxx
>
> 20
> >    127.0.0.0        255.0.0.0        127.0.0.1       127.0.0.1
>
> 1
> >    224.0.0.0        240.0.0.0   24.159.201.xxx  24.159.201.xxx
>
> 20
> > 255.255.255.255  255.255.255.255   24.159.201.xxx  24.159.201.xxx
>
> 1
> > Default Gateway:      24.159.200.1
> >
> > Is it a typo on your part????? You lease an ip in the
> > 24.159.201 range, but your nic in fedora is in the
> > 24.159.200 range!!!!!  That would mess everything up.
> >
> > Mark
>
> Given the netmask (255.255.252.0), the IP/network address shown above looks
> to be correct to me.
>
> Long pause...
>
> Well, except for windoze brain dead TCP/IP stack calculating a classful
> broadcast address instead of classless. The correct broadcast address (given
> the netmask) should be 24.159.203.255. Oh, and how about the 20 hop metric.
> Gezzz! I'm surprised this system is even working on the network.
>
> Steve Cowles

Yeah,  But even more interesting is that the windows box, (brain dead as 
it is), supposedly works and his linux box doesn't !!!!!      This 
doesn't look right to me.
>

yum yum

[hicham]

hello

do i have to use yum as root user ?
isn't risky to connect to the net as root ?

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yum yum

[James Kosin]

----- Original Message ----- 
From: "hicham" 
To: "For users of Fedora Core releases" 
Sent: Monday, March 29, 2004 10:58 AM
Subject: yum yum

| hello
|
| do i have to use yum as root user ?

YES.

| isn't risky to connect to the net as root ?

No, because you are not connecting to the net as root you are running the
local application as root.
Ok... the root user has special priviledges that allow the user to
modify/remove/create/change any file on the system.  This includes files
that are accidentally changed so even root doesn't have permissions to the
file.  In the end root is a SUPER user above all users.
The bad news...  some applications crash once in a while or they have
exploits.  The problem lies in that when an application is run on the system
as root and crashes or gets exploited, a creative person/virus can gain root
access to the machine if that non-root user ran the application as root.
This is one reason most servcies http etc. now run as lower users than root.
yum, up2date, apt, .. etc. need root access to update the files properly on
the system.  In most cases, you don't have anything to worry about.  These
applications are not servers or server applications, so if they crash as
root they are done and over with, if you ran them as root.
If you allowed other users to run them, things would be different and if the
application crashed you could be opening up a user to gain root
privaledges....

I hope this helps,
James Kosin

OpenSSL break things?

[St0rM]

Greetings.

I've just "updated" a Red Hat 9 box to Fedora. The way i've done it is a 
little "nonstandard" as i made a "rpm -F" on the directory containing 
all the RPM, and made a few adjustment later (I'm good enough to be sure 
I've done all right, but at this point not SO sure.)

What i've seen after the upgrade is that all was working good. Then i've 
  made my first up2date. Between all the rest , i updated openssl , from 
openssl-0.9.7a-23 to .

Then, i rebuilt HTTPD and POSTFIX from source RPM because i need them 
with different options from the original.

Then (this is the sad point) i saw that httpd was not starting . I've 
got an error loading libphp4.so including libcurl.so . up2date too was 
not working, python script was giving out an error on SSL.

Reverting back to openssl-0.9.7a-23 solved the problem, both.

I saw this already on RH 8.x, exactly the same story, resolved only with 
Red Hat 9 .

Anyone know what happened? Is a known issue?

Thanks.

yum yum

[hicham]

--- James Kosin  a écrit :
> ----- Original Message ----- 
> From: "hicham" 
> To: "For users of Fedora Core releases"
>
> Sent: Monday, March 29, 2004 10:58 AM
> Subject: yum yum
>
> | hello
> |
> | do i have to use yum as root user ?
>
> YES.
>
> | isn't risky to connect to the net as root ?
>
> No, because you are not connecting to the net as
> root you are running the
> local application as root.
> Ok... the root user has special priviledges that

.......................................
..........................................
> If you allowed other users to run them, things would
> be different and if the
> application crashed you could be opening up a user
> to gain root
> privaledges....
>
> I hope this helps,
> James Kosin

thanks it does
> -- 
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> [e-mail]
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