[lug] Interesting Crash Report
Bill_Jarosko at adc.com
Wed Mar 21 13:22:01 MST 2001
UUGH... reboots, mentioned here ....uuugh... just restart inetd....
> -----Original Message-----
> From: Brad Doctor [mailto:bdoctor at ps-ax.com]
> Sent: Wednesday, March 21, 2001 3:23 PM
> To: lug at lug.boulder.co.us
> Subject: Re: [lug] Interesting Crash Report
> Two tools may be of interest to you:
> gnorpm -- Graphical RPM manager, can add, remove, query, etc.
> control-panel -- Graphical system config utility, including
> removing items from
> startup. Runlevel 3 is what you are interested in if your
> system boots to
> the command prompt (and you then login, and "startx"),
> runlevel 5 is what you
> want if you boot directly to XDM / some other graphical X
> login screen. I
> would do both if you are not sure.
> The easiest thing is to restart your machine after you have
> disabled your
> services, just to be sure -- control-panel will only remove them.
> As an example, I only run the following on my workstation:
> S10network (init.d/network)
> S12syslog (init.d/syslog)
> S20random (init.d/random)
> S35identd (init.d/identd)
> S55sshd (init.d/sshd)
> S90crond (init.d/crond)
> S90xfs (init.d/xfs)
> S99snmpd (init.d/snmpd)
> If you are brave, don't run anything you are not familiar
> with. Otherwise,
> be absolutely certain you know what each service does, and
> what it requires
> to be secure when running (patches, configs, etc.). As a
> general rule, don't
> run anything you don't need. Less system overhead, lower chance of
> compromise. A workstation needs very little to operate
> properly. In my
> list, the only *required* elements are network,xfs. The rest
> are optional
> in terms of system functionality. (yes, you can run without syslog)
> Also, the required elements are basic to my needs -- not the
> system, if you
> don't need an interface and networking :)
> > First, thank you Scott and D. Stimits for confirming my
> fears and also
> > for the advice. I failed all those tests, except lsof,
> which appears
> > not to be on my machine; what/where is it? I have re-installed 6.2,
> > changed my password, killed rpc.statd (how do I disable it, please),
> > and renamed nfslock. I hope to be safe for another ten
> minutes or so.
> > I have studiously avoided security issues until now because I have
> > plenty of other things to do with my time and I know that a good
> > number of hours will be consumed by it. I have trusted in a quick
> > connect and disconnect policy for my security. This has
> worked quite
> > well really: I was caught when I started surfing a little.
> However, I
> > suppose the hour cometh, so I have more questions.
> > What I should like to do is have a two or three machine
> local network
> > in the house connected to the outside world via the
> television cable;
> > the latter for speed and to avoid preventing use of the telephone.
> > The local network must accomodate MS NT etc. as well as Linux. I
> > assume that this is a very common setup. Is that true? Is it a
> > sensible way to go? Is there something better, and why is
> it better?
> > Do I tie myself to AT&T, or can I use my present ISP, etc?
> > I should like to understand what I am doing, rather than
> simply follow
> > a procedure. Although, in truth, that is only because I know that I
> > shall have to fiddle with it later. So, a question is: where do I
> > read about what to do? What is the best starting point;
> HOWTOs, buy a
> > book (which one), BLUG archives, or what?
> > I have read the term ipchains many times; are they part of a good
> > technique? What about tummy's isinglass? I have heard
> that a router
> > is a good security device; and I have heard that a router is a bad
> > security device. How secure is RedHat 7.1?
> > Yours in ignorance, but hopeful.
> > dajo
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