Re: [CentOS] How to disable screen locking system-wide?

2011-01-21 Thread Mike McCarty
Rajagopal Swaminathan wrote:
 Greetings,
 
 On 1/21/11, JohnS jse...@gmail.com wrote:
 On Thu, 2011-01-20 at 20:13 -0600, Mike McCarty wrote:

 This is on software which ran as POS stuff.
 
 
 hmm... how about a vlock -a (or inverse thereof) wrapper?

We wanted to log the user out of the POS application, not
lock out of the machine. That also doesn't address overwriting
of sensitive material in RAM. Also, it was with SCO, not
Linux. It should really be thought of more as an embedded
application. Upon boot up, the first thing run was the app,
and that occurred automatically. The users were not computer
savvy. In fact, the ones who thought they had some savvy
were the ones causing most of the problems, by messing
up the configuration.

One guy liked to rename directories to suit his fancy.

Mike
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[CentOS] smartmontools SRPM fails

2011-01-21 Thread Mike McCarty
I want to install smarmontools v 5.40, and so I pulled the
SRPM for 5.39 so I could patch and install...

$ wget -Nc 
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/smartmontools-5.39.1-2.el6.src.rpm

However, the install of the source fails.

$ rpm -ivh smartmontools-5.39.1-2.el6.src.rpm
warning: smartmontools-5.39.1-2.el6.src.rpm: V3 RSA/MD5 signature: 
NOKEY, key ID fd431d51
1:smartmontools  warning: user mockbuild does not exist - 
using root
warning: group mockbuild does not exist - using root
### [100%]
error: unpacking of archive failed on file 
/home/jmccarty/devtools/RebuildRPM/build/SOURCES/smartd.initd;4d39deaa: 
cpio: MD5 sum mismatch

Is the SRPM corrupted? I've pulled a few from other places for
other versions (like Fedora) from pbone, and they all have
this problem.

Any hints available?

Mike
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Re: [CentOS] smartmontools SRPM fails

2011-01-21 Thread Mike McCarty
Mike McCarty wrote:

[...]

 $ rpm -ivh smartmontools-5.39.1-2.el6.src.rpm
 warning: smartmontools-5.39.1-2.el6.src.rpm: V3 RSA/MD5 signature: 
 NOKEY, key ID fd431d51

Hmm, maybe I need a later version of RPM.

https://bugzilla.redhat.com/show_bug.cgi?id=436812

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Re: [CentOS] smartmontools SRPM fails

2011-01-21 Thread Mike McCarty
Jay Leafey wrote:
 Mike McCarty wrote:
 Hmm, maybe I need a later version of RPM.

 https://bugzilla.redhat.com/show_bug.cgi?id=436812

 Mike
 
 As I understand it, there have been some changes in the checksum methods 
 in the newer versions of RPM.  If you want to install package built with 
 the newer versions, you need to add the --nomd5 option to the rpm 
 command to avoid the signature errors:

That was my (provisional) conclusion, and that's what I did.
Version 5.40 is now happily running on my system. Hadda update
the smartd.conf file, of course, for my needs.

 
 rpm -ivh --nomd5 smartmontools-5.39-1.2.el6.src.rpm
 
 Of course, once that's done the fun is just starting.  Since the 
 original was built for RHEL6, it may have dependencies on newer versions 
 of other packages.

I had no other problems. I probably need to get a later version
of RPM source and install. I had already done a straight tarball
build and install into /usr/local for some testing, but wanted
RPM to do it right, so I needed a SPEC file, mostly.

 
 Your mileage may vary.
 

Thanks!

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Re: [CentOS] smartmontools SRPM fails

2011-01-21 Thread Mike McCarty
Lars Hecking wrote:
 ### [100%]
 error: unpacking of archive failed on file 
 /home/jmccarty/devtools/RebuildRPM/build/SOURCES/smartd.initd;4d39deaa: 
 cpio: MD5 sum mismatch

[...]

  Happens with SRPMS from newer Fedoras. Unpack it manually into
  /usr/src/redhat/SOURCES and move the spec file into place.

What I did was turn off MD5 checking, and I got what I needed.

Thanks!

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Re: [CentOS] How to disable screen locking system-wide?

2011-01-20 Thread Mike McCarty
John Hodrien wrote:
 On Thu, 20 Jan 2011, Rudi Ahlers wrote:
 
 I don't know about you, but a user leaving his desk (for any purpose,
 other than going home) doesn't cause a security risk. I trust all our
 staff, and when Andrew goes on lunch I expect him to leave his PC
 unlocked.
 
 I think I see things differently.  Allowing others to access your account *is*
 a security risk.  It potentially opens confidential data open to other people,
 and leaves that specific user open to abuse through people using their
 machine.  You might as well just pin your passwords on the notice board and be
 done.  After all, you trust all your staff.

This is not a supposition, I've seen it happen. I worked at
a company where one guy disabled his keyboard locker. One day he
left for lunch. When he came back, Security escorted him to HR,
where he was asked to explain why he sent several racist e-mails
all over the company. He had a few days off while they investigated
the incident, and the culprit was found. The culprit thought it
was all just a prank, and that's what was intended, but both of them
got in lots of trouble. Official memos to everyone followed.

At home, I keep my keyboard locked the instant I leave it because
of potential security breaches, using the little lock screen (sic)
button on the pop up menu on the left. Just about the only GUI button
I use.

OTOH, I have cats :-)

Mike
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Re: [CentOS] How to disable screen locking system-wide?

2011-01-20 Thread Mike McCarty
Rudi Ahlers wrote:
 On Thu, Jan 20, 2011 at 12:00 PM, John Hodrien j.h.hodr...@leeds.ac.uk 
 wrote:
 
 
 
 I think I see things differently.  Allowing others to access your account 
 *is*
 a security risk.  It potentially opens confidential data open to other 
 people,
 and leaves that specific user open to abuse through people using their
 machine.  You might as well just pin your passwords on the notice board and 
 be
 done.  After all, you trust all your staff.
 
 I don't agree with that, sorry.
 
 A few years ago one of our staff members decided his salary isn't good
 enough so he started a side-line business, on our company time. He
 stole some of our client's data (contact details, emails, and even
 contracts) and sold it to 3rd parties. This went on for about 6 months
 before we actually realized what was going on.

The computer belongs to the company, and the information on
it _should_ belong to the company (though what people put on
computers can't be completely monitored), but keeping one
employee out of another's accounts is important for a variety
of reasons.

That does not preclude access to the machine's content. Anyone
with root access should be able to do that. You shouldn't
have to log in AS THAT USER in order to access the computer's
content.

Mike
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Re: [CentOS] How to disable screen locking system-wide?

2011-01-20 Thread Mike McCarty
Giles Coochey wrote:

[...]

 A user account should belong to the person who has been assigned that 
 account. They are the only person who should be able to use that 

You are conflating access and ownership. The company should
own the machine and the data. Only persons authorized by the
company should have access. That should include the user to whom
the account is assigned, and a limited number of trusted persons
with administration priviledges. Ultimately, the company must
have access to all information on an as needed basis, which
should be rare.

The rest of your argument stands.

[...]

 Data and Accounts are distinct, and the policies regarding their use 
 should be distinct  too.

Well stated.

Mike
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Re: [CentOS] How to disable screen locking system-wide?

2011-01-20 Thread Mike McCarty
Giles Coochey wrote:

[...]

 I can't speak for HIPPA, SOX etc... but automatic locking is part of  IT 
 best practice.

I can. I did a contract job a few years ago to achieve HIPPA compliance
with some pharmacy software. I inserted time limits with logout, screen
information blanking, and RAM data overwriting in order to comply.

SOX I don't know about.

Mike
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Re: [CentOS] How to disable screen locking system-wide?

2011-01-20 Thread Mike McCarty
Rudi Ahlers wrote:

[...]

 User accounts also doesn't mean much to me. I know how it sounds, but
 I care more about the data than the user's account. As long as I can
 access whatever I want, whenever I want.

ISTM that you have control issues. Access to data is what counts,
and you've got that by your own statement. Since that's the case,
I suggest that there isn't going to be any change in your stance,
no matter what arguments get presented. You have an emotional attachment
to this issue, and rational argument isn't going to make progress.

What might make a difference would be addressing the emotional content
of your statements. That's something better done in another venue, I
think.

The bottom line with you seems to be because I _want_ it that way.

I suspect that no rational argument is going to change the desire
to feel the degree of control over your machines and employees that
you have.

That's not necessarily a criticism, BTW. In this particular case,
it seems excessive to me. However, you are you, and you (your
company) have paid for something, and you want a certain degree
of control.

I like to control what's on my machine, too, as another thread
reveals.

Mike
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Re: [CentOS] How to disable screen locking system-wide?

2011-01-20 Thread Mike McCarty
Sorin Srbu wrote:
 -Original Message-
 From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On
 Behalf Of Tom H
 Sent: Thursday, January 20, 2011 1:03 PM
 To: CentOS mailing list
 Subject: Re: [CentOS] How to disable screen locking system-wide?


 In our environment, leaving your desk without locking your
 computer/screen is punished with a disciplinary hearing and three such
 hearings result in dismissal. Having one person using another's
 account is considered a security risk.
 
 Sounds kinda' harsh. May I ask what industry this is in?

Sounds pretty normal to me. I've worked for a variety of
companies over a period of over twenty years, and similar
policies were in effect in each one. At one company where
I worked, possesion of another person's password was
immediate dismissal grounds, though not automatic.

Any company which doesn't exercise due diligence to protect
its trade secrets will lose when trying to recover from
an industrial espionage incident. I know from personal
experience, since I was at a company which went after another
for theft of IP, and nearly wound up having to testify in
court. A friend of mine did have to.

All employees were required to attend a seminar presented
by the full time legal staff, explaining what IP is, and
how it is protected. One thing we were told very forcefully
was that we were to have good passwords (and what that meant),
and that we were never to divulge our passwords to anyone
else.

IANAL, but I suggest that anyone who has any intellectual
property (patents, trade secrets, trade marks) get a lawyer
to explain what they are, what the differences are, and
how to protect them. They need different kinds of protection,
and trade secrets, especially, are hard to protect without
good, secret passwords.

Mike
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Re: [CentOS] How to disable screen locking system-wide?

2011-01-20 Thread Mike McCarty
Mike McCarty wrote:

[...]

 IANAL, but I suggest that anyone who has any intellectual
 property (patents, trade secrets, trade marks) get a lawyer

Oops! Forgot copyright. Those are the ones in the USA.
There may be others in other countries. I don't know.

Anyway, trade secrets are very hard to protect, and due
diligence is very important, so I'm told.

Mike
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Re: [CentOS] cloning a server

2011-01-20 Thread Mike McCarty
PA wrote:
 I guess what I was asking for is to take a already configured server and put
 it on multiple CD's DVD's and then use that to install on another server.

Reading between the lines, ISTM that you don't have a verified means to
do backups.

If you can't do what you want, then you don't have a good backup
system, because that's what a backup is for.

Mike
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Re: [CentOS] How to disable screen locking system-wide?

2011-01-20 Thread Mike McCarty
JohnS wrote:
 On Thu, 2011-01-20 at 14:18 -0600, Mike McCarty wrote:
 Giles Coochey wrote:

 [...]

 I can't speak for HIPPA, SOX etc... but automatic locking is part of  IT 
 best practice.
 I can. I did a contract job a few years ago to achieve HIPPA compliance
 with some pharmacy software. I inserted time limits with logout, screen
 information blanking, and RAM data overwriting in order to comply.
 
 What happened to SSL (Encryption)? Gee the MPI just hit the world.

This is on software which ran as POS stuff.

Mike
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Re: [CentOS] how to convert 7 cd iso images into one dvd image?

2011-01-19 Thread Mike McCarty
Nataraj wrote:
 There's always ncftp which has the ability to resume an interrupted file
 transfer, though I regularly transfer DVD images with both http and ftp
 without any errors.

wget

Mike
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Re: [CentOS] 24G running on centos 5 desktop.

2010-06-02 Thread Mike McCarty
John R Pierce wrote:
 Kwan Lowe wrote:
 Wow, pretty nice... 24G in a desktop :)  Remember when 2M was a big deal??
   
 
 heck, I remember when 64k was a big deal.

Yes, but we were running CP/M, not Linux.

Mike
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Re: [CentOS] find /etc -size -1G return only empty files

2010-03-25 Thread Mike McCarty
Nicolas Thierry-Mieg wrote:
 Nicolas Thierry-Mieg wrote:
 Ala1n Sp1neu8 wrote:
 Hello
 find /etc -size -1G

 should return all files less than 1Giga byte in /etc, but return a
 list of empty file (size=0)

 find /etc -size -2G

 work fine and return all the files

 This works the same  on my fedora11 and my centos 5 !

 Did I miss something or is it a bug ?
 not sure, but:
 -1  strictly less than one, being an int that has got to be zero.
 G   unit is GB.
 
 I'm sure now, a simple test confirms this.
 +n : =n, so behaves as expected
 -n : n, n being an int, so that's =n-1 which can make a big difference 
 when you have a G behind that n.

Interesting. The man page is somewhat ambiguous on this point, but
does hint at that when it mentions that it references a number of
units, the unit being changeable, and defaults to 512 bytes.

So, then,

-size -1024M

should do what he wants, up to within 1MB blocks, but still
doesn't reference bytes. To do it exactly by the byte, one would
need
-size -1073741824b

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Re: [CentOS] RAID 5 setup?

2010-03-25 Thread Mike McCarty
Robert Heller wrote:
 At Thu, 25 Mar 2010 22:27:56 +0100 CentOS mailing list centos@centos.org 
 wrote:
[...]

 
 The root of the problem lies in the fact that when a disk fails, you  
 have to read-out the data from the other disks to re-build the RAID.
 Reads from disks have a certain probability to contain an error.
 The larger the disk and the larger the array, the more probable it is  
 to encounter such an error while rebuilding the RAID (and if that  
 happens, you're RAID is just a piece of scrap-metal)
 
 Or as was done recently at the Wendell Free Library, your disks become
 raw materials for an after school art project... :-)

It depends on how redundant the array is. With enough
redundancy, one can rebuild even if more than one disc
fails. RAID is essentially indistinguishable from ECC.
If the number of errors (failed reads from discs) does
not exceed the correction ability of the code used
(usualy a Reed-Solomon BCH style code) then the reconstruction
can proceed.

Mike
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Re: [CentOS] How can I access a ZIP file that's over 2Gb?

2010-03-16 Thread Mike McCarty
Robert Heller wrote:
 At Sat, 13 Mar 2010 18:53:49 -0500 CentOS mailing list centos@centos.org 
 wrote:
 
 
 Random thought (total guess): What happens if you use split on the zip
 file and try to get info zip to think it is a multi-part archive?

A multi-part archive is not the same as a single archive split
into pieces.

Mike
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Re: [CentOS] compilers a security risk?

2010-03-11 Thread Mike McCarty
Dave Stevens wrote:
 I manage a web hosting server that we've recently upgraded, in part so  
 we could accommodate a domain that will enable community mapping. In a  
 recent exchange of mails one developer said:
 
 
 I could build the package directly on the server machine you have,
 provided that the potential security risk posed by having compilers
 installed is not an issue.

That's how the Internet Worm spread.

As a general principle, machines on the periphery or what one
might call firewall machines should have nothing installed
which they don't need in order to perform their primary intended
function. That means both hardware and software, IMO.

The less which is there, the fewer potentials for compromise exist.

No services should run which aren't necessary for the functioning
of the machine. Don't even install them unless you have to, but
don't enable/start them if you install them.

I would install rkhunter and tripwire, and I would peruse their
logs.

Mike
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Re: [CentOS] help fdisk and dd

2010-03-04 Thread Mike McCarty
John Doe wrote:
 From: chloe K chloekcy2...@yahoo.ca
 What is the best practice to remove all data in the disk?
 ls fdisk ok or use dd 
 
 Maybe something like (replace the ?):
  - fast but not secure:
dd if=/dev/zero of=/dev/?d? bs=4096
  - slow but more secure:
dd if=/dev/zero of=/dev/?d? bs=4096

What is the difference between the above two commands?
Did I miss something?

  - n times slower but n times more secure:
for ((i=1; i=n; i++)); do dd if=/dev/zero of=/dev/?d? bs=4096; done

I don't know what n times more secure means. Could you
please explain? Does that mean that, with n times as much
work, one can still recover the information?

Mike
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Re: [CentOS] help fdisk and dd

2010-03-04 Thread Mike McCarty
m.r...@5-cent.us wrote:

[...]

 Alternatively, the answer on another techie mailing list I'm on is that
 you could disassemble the disks and use thermite.

Just a hammer, no need to disassemble the case.

Mike
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Re: [CentOS] help fdisk and dd

2010-03-04 Thread Mike McCarty
John Doe wrote:
 
 Oops, for the slow procedures, it is /dev/random instead of /dev/zero...

Ah, ok, disregard the other message.

Mike
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Re: [CentOS] help fdisk and dd

2010-03-04 Thread Mike McCarty
m.r...@5-cent.us wrote:
 I wrote

 [...]

 Alternatively, the answer on another techie mailing list I'm on is that
 you could disassemble the disks and use thermite.
 Just a hammer, no need to disassemble the case.

 I dunno, a buddy who was in army intel back in the early eighties told me,
 about 10 years ago, that they could flatten out the platters and read some
 data. Thermite not only melts the platters, but will hit the Curie point.
 
   mark and make nice flames and melting metal

I belive modern discs are brittle, and will shatter, not bend.
Thermite would certainly do the trick. Might get you in trouble
with local hazard control laws, though. It might melt concrete,
so don't do it on your driveway.

Mike
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Re: [CentOS] grub.conf and /proc/cmdline

2010-03-04 Thread Mike McCarty
Jerry Geis wrote:
 I have a grub.conf (below) with pci=nomsi, also /proc/cmdline and dmesg 
 | more
 do not show the pci=nomsi.

Have you tried booting up, and before GRUB goes on to boot,
trying to edit the command line? Then you'll see what GRUB
actually thinks it needs to do.

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Re: [CentOS] Intrusion Detection

2010-03-04 Thread Mike McCarty
Jim Perrin wrote:
 On Thu, Mar 4, 2010 at 5:02 PM, Dan Burkland dburk...@nmdp.org wrote:
 Hello all,

 I have been exploring the various intrusion detection systems
 available for the Linux platform and was wondering what ones you
 all would recommend? I have used AIDE before and while it is
 extremely easy to setup, it does not support the ability to send
 alerts as files are changed (allows one to be aware of an intrusion
 almost immediately).

 You can use auditd to watch specific files if you're after some key
 things. Beyond that I just use aide.

I like tripwire and rkhunter.

Mike
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Re: [CentOS] SMARTD (?)

2010-02-26 Thread Mike McCarty
m.r...@5-cent.us wrote:
 Ok, I saw more sectors on a drive yesterday, so this morning, no one was
 running on it, and I took it out of use, then bounced it onto a DVD, and
 ran fsck -c (check for bad blocks). It finished. I bounce the server.
 
 And SMARTD reports the sectors as currently unreadable (pending)
 sectors, and offline uncorrectable sectors.

I recommend to replace that disc ASAP. When they start having to
reallocate more sectors, they are in a pending complete failure state.

Mike
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Re: [CentOS] Backup solution to backup /var/spool/imap above 150GB data

2010-02-25 Thread Mike McCarty
Agnello George wrote:
 The requirement fro backup  is not  primarily  for HDD failure , but human
 error failure . In case one of our user ( eg: the COO with huge  mailbox
 size has delete all his certain very important mails, and he want to recover
 them , the contacts us as we are supposed to maintain his mail backup for a
 week, and we should restore his backup immediately  )  this the main
 requirement  for the backup  and that too on the same server different
 partition .

Have you considered using a snapshot approach? By that, I mean one
which uses hard links to create the backup, and as files get added/
modified, the data are copied, and links are created. Usually, one
has a snapshot directory with something like a daily snapshot, and
24 hourly ones, something like that.

Mike
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Re: [CentOS] Backup solution to backup /var/spool/imap above 150GB data

2010-02-25 Thread Mike McCarty
Karanbir Singh wrote:
 On 02/24/2010 07:44 PM, Les Mikesell wrote:
 Err.. raid is NOT backup solution.
 Neither is a snapshot in another location on the same machine.
 
 Thats not true, raid is an online setup - different location could be 
 point in time, and on blockdev;s that dont share user access load. Which 

I think that, without causing any more dispute, I can point out
that backup covers a wide range of solutions to a less broad
but still not uniquely one set of needs. No one of the means to
backup is a full solution to all the needs which backup satisfies.

Even when one is using the term backup narrowly in the sense
of protection from disaster, there are still different kinds
of backup. For example, there is the full disaster recovery
or bare metal backup, which is intended to work with another
piece of identical hardware, starting with blank fixed storage,
and ending up with a working system which looks identical to the
original at the epoch at which the backup was made. This is
significantly different from one intended merely to restore the
user altered or created data on a machine which has been newly
installed with a compatible version of the OS, for example.

That's why one needs to know the intended use of the backup set
before making any recommendations on procedure and content of the
backup set.

Mike
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Re: [CentOS] Backup solution to backup /var/spool/imap above 150GB data

2010-02-24 Thread Mike McCarty
Agnello George wrote:
 Hi
 
 We have  an issue with one of our clients , they have a mail server with
 the  /var/spool/imap partition as 150 GB . They need to take differential
 backup on to /backup partition ( a different HDD  of total 250 GB space )  .

You've stated things in terms of solutions. You may possibly get better
answers if you state your goal. There is some capability you are
trying to achieve. Tell us what that is, and you may make more progress.

IOW, what is the purpose of the backup? As one mentioned, RAID may
handle your needs.

Mike
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Re: [CentOS] Backup solution to backup /var/spool/imap above 150GB data

2010-02-24 Thread Mike McCarty
Eero Volotinen wrote:
 2010/2/24 Mike McCarty mike.mcca...@sbcglobal.net:
 Agnello George wrote:
 Hi

 We have  an issue with one of our clients , they have a mail server with
 the  /var/spool/imap partition as 150 GB . They need to take differential
 backup on to /backup partition ( a different HDD  of total 250 GB space )  .
 You've stated things in terms of solutions. You may possibly get better
 answers if you state your goal. There is some capability you are
 trying to achieve. Tell us what that is, and you may make more progress.

 IOW, what is the purpose of the backup? As one mentioned, RAID may
 handle your needs.
 
 Err.. raid is NOT backup solution.

Of course not. RAID is a means to achieve availability,
which may be his goal. Karanbir already stated a means to do
what he seemed to want, but it seemed not to satisfy his needs.

Unless the query is placed in terms of requirements and goals,
instead of solutions, it'll be difficult to achieve satisfactory
results.

The purpose of backup is some degree of disaster recovery, and
perhaps also migration. If that's truly his goal, then ISTM
that Karanbir suggested a viable solution to achieving avialability
while also performing backup, by doing on-the-fly duplication
of the data onto another file system which can then be backed up
at liesure.

Doing so in a manner which ensures a true snapshot may be more
difficult to achieve, while still ensuring availability. I normally
do my backups in single user mode with all file systems mounted read
only, except the one to receive the backup. That of course precludes
availability during the backup procedure.

That's why I would like to see what he actually wants to achieve,
instead of how he has chosen to go about it.

Mike
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Re: [CentOS] recover data on usb drive

2010-02-23 Thread Mike McCarty
fred smith wrote:
 
 Thanks Barry, it's cranking away now. We'll see if it actually
 restores most or all of it.

How did that come out?

Mike
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Re: [CentOS] Decompiler?

2010-02-23 Thread Mike McCarty
Hadi Motamedi wrote:
 Dear All
 I have disassembled the object file on my CentOS server , by the following :
 #objdump wmain
 In the output , I have recognized the intended subroutine that I need
 to find the exact command syntax that it sends out . To this end , I
 tried to capture it through 'tcpdump' but didn't success . I read
 this segment assembly language code but it is somewhat difficult to
 decode . Can you please let me know what CentOS decompiler is
 suitable for this case ? I tried with 'decompyle' but it didn't get
 through.

As a possible answer to this question on a more fundamental level,
it has been shown that decompiling is NP-Complete, hence that there
is no reasonable way actually to do it in the general case.

Mike
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[CentOS] CentOS 5 i386 Live CD

2010-01-29 Thread Mike McCarty
Johnny Hughes wrote:
 I forgot to add that the password for root and centos is:
 
 12qwaszx
 
 Johnny Hughes wrote:
 The CentOS Development team is pleased to announce the availability of
 the CentOS 5 i386 Live CD.

[...]

 This CD has a non writable /usr directory, which means it is not able to
 have software installed on it after boot up.  The CentOS team is working
 hard to create a Live CD for CentOS 5 that is based on the Fedora Live
 CD Project (that is writable in all directories and even able to be used
 for installs) ... unfortunately we were not able to get this working
 with CentOS 5 for this release.  We hope to get that Live CD working by
 the release of CentOS 5.1.

Did I miss some notices? I don't recall seeing another LiveCD.
How is progress coming?

Mike
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Re: [CentOS] Dealing with MS .msg files on Linix

2009-11-02 Thread Mike McCarty
James B. Byrne wrote:
 On Mon, November 2, 2009 14:10, Alan Sparks wrote:
 Are they TNEF format?  Could something like the following help you?
 Checked the SquirrelMail plugins repo?
 http://squirrelmail.org/plugin_view.php?id=62


 
 How can I tell the format from the raw message file?  Other than the

You can use od to dump the file in octal or hex format, and
compare to the definition of the file format for TNEF standard.

 XML stuff at the top of the message body it looks much like any
 other mime message.
 
 But I will check out the link.  Thank you.
 
 Regards,
 
 


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Re: [CentOS] Re: How to check for rootkit, troians etc in backed up files?

2008-09-16 Thread Mike McCarty

Scott Silva wrote:




Thanks (even if late!) for the suggestions, I've applied them.


A reply in 3 days is late? That is good for a lot of lists.
Your thank you almost 2 weeks later is what is late.


I think that's what he meant. He put the even if late right
after the thanks, indicating that's what was late, the thanks.

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Re: [CentOS] How to check for rootkit, troians etc in backed up files?

2008-09-04 Thread Mike McCarty

M. Fioretti wrote:

Hi,

there is a remote (VPS) Centos 4.2 server which *may* have been
compromised. Reinstalling everything from scratch isn't a problem, it
may even be an occasion to improve a few things, the question is
another.


I use rkhunter and chkrootkit. I run them regularly.

If you keep your machine clean, then your backups will be, too.

If you get compromised, then your backups since compromise are
suspect.

Mike
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Re: [CentOS] A new blog on the block for Linux newbies

2008-09-04 Thread Mike McCarty

Ross S. W. Walker wrote:

[snip good advice]


Oh and don't forget virtualization is your friend in learning!

VMware workstation, Parallels, Virtual Box, Xen, Hyper-V, they're
all good for learning!

Create a VM per-distro, see how each distro installs, see how each
is managed. Take snapshots and play around with their configs, see
how they break, see if you can fix them, if not revert to the
snapshot. Get your feet wet.


May I suggest that, if you really want to learn how a Linux
system gets put together, and works, then get a copy of
Linux from Scratch and build your own?

http://www.linuxfromscratch.org/

Mike
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Re: [CentOS] How to move my MBR

2008-05-27 Thread Mike McCarty

Scott Moseman wrote:

The BIOS determines which disk (the first) will be chosen to boot from.


I have no problems configuring the boot order in the BIOS.

I must have the MBR on /dev/hdc (which is being removed).
The /boot partition is on /dev/sda (where I want to move MBR).


To make a plain bootsector copy:
dd if=/dev/sda of=/dev/sdb bs=512 count=1


sda = old MBR source and sdb = new MBR source, I assume?
So, in my instance, I'm going to want to run it in this syntax:

dd if=/dev/hdc of=/dev/sda bs=512 count=1

I'm assuming the first 512 bytes are allocated purely for MBR and
won't hold any data that could be overwritten?  Would that be true?


It is not guaranteed to be true. Every disc has an MBR. The MBR
has three fields (depending on how one counts, some say two).
One field is the code area, another is the Partition Table (PT)
and the third is the Boot Marker (some include this in the PT).
You don't want to copy the PT from one disc to another. Copying
all 512 bytes will overwrite the PT.

Mike
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Re: [CentOS] How to move my MBR

2008-05-27 Thread Mike McCarty

Scott Moseman wrote:

I copied over the MBR from hdc to sda.  I found a 4.4 LiveCD, but
apparently its damaged so it wouldn't boot.  I attempted to put
everything back and when I rebooted it went into a GRUB screen instead
of a normal boot.  I had no idea how to get it to boot from there, so
instead of taking the time to figure it out, I decided it was time to
make the plunge to CentOS 5.  So I'm now on CentOS 5 and my old /home
hard drive is completely history.  :)


You likely overwrote your PT. See my other post. If you can recover
your PT, you'll likely get your data back.

Before fiddling like this always

(1) make a complete backup of your system
(2) display and archive your PTs using fdisk or similar
(3) make complete copies of your MBRs on each disc, and BRs for each
partition.

Mike
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Re: [CentOS] Migrating from ancient Fedora (was Fedora Core 5 EOL on 2007-06-29)

2007-09-21 Thread Mike McCarty

Jim Perrin wrote:

On 9/21/07, Mike McCarty [EMAIL PROTECTED] wrote:



WRT SELinux, just disable it is my suggestion. Or perhaps
switch to another distro which is not yet infected.



Why yes, ignoring security or bypassing it alltogether rather than
learning how to protect your systems is an EXCELLENT idea. I highly


Sarcasm is unbecoming. I suppose you are unaware of the
long and bitter discussions on Fedora about SELinux?


recommend the 'head in the sand' approach. After all, if you can't see
the bad guys poking you're server, they're not actually doing it,
right?


SELinux does not prevent nor report people poking your server.


Selinux is complicated, but it's getting far more easy to use than


SELinux is complicated, FULL STOP. It's a wrong-headed approach.


earlier versions (FC2 anyone?) and in combination with other tools, it
can provide a rock solid security system.


Any security system which is not already rock solid is not going
to be made any more secure from attack by adding SELinux. It might
possibly suffer somewhat less damage, though that's debatable.


For webservers, the belt+suspenders combination of mod_security and
selinux is damn near unbeatable.


You have personal experience with SELinux saving your system?

Mike
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Re: [CentOS] Chroot tool

2007-09-20 Thread Mike McCarty

Jordi Espasa Clofent wrote:

Hi,

Currently I'm working on building chroot environment for a several 
users. The needs of those users are different, so the binaries and their 
libraries are differents too. The building process tends to be so tedious.


I'm using a odd script to automatize the copy of needed libraries, but 
it not works very fine.


¿Is there some tool to automatize the chroot jails creation/management?
¿Do you use some kind of shell-script?



I haven't used it myself, but

http://olivier.sessink.nl/jailkit/howtos_chroot_shell.html

is supposed to be pretty good.

Mike
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Re: [CentOS] Migrating from ancient Fedora (was Fedora Core 5 EOL on 2007-06-29)

2007-09-20 Thread Mike McCarty

Johnny Hughes wrote:

Kenneth Porter wrote:


On Wednesday, June 27, 2007 9:02 PM -0700 Akemi Yagi [EMAIL PROTECTED]
wrote:



Ahem, I know this is a CentOS mailing list.  BUT, as more and more
people migrate from FC to CentOS, I thought placing this reminder here
was worthwhile.  [I am still running *cough* FC5 on my own desktop, so
I am also running out of time]


For those of us migrating from ancient versions of Fedora, what gotchas
might one expect?




[snip]


WRT SELinux ... these are your friends:


WRT SELinux, just disable it is my suggestion. Or perhaps
switch to another distro which is not yet infected.

Mike
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Re: [CentOS] Retrive data from repartitioned / reformatted, hard drive?

2007-06-29 Thread Mike McCarty

David G. Miller wrote:
If you just want to confirm that some data is still there, you might try 
something like:


1) Boot from any Linux live CD (knoppix, Fedora 7, etc.).
2) Open a command window.
3) Assuming this is the only hard drive and it's /dev/hda:

dd if=/dev/hda | grep 'some *short* string that should be present'

4) If your string survived, you should see something like binary file 
matches'.


I wonder how difficult it would be to recognize a BR? Each logical
volume (nothing to do with LVM) should have a BR on its first
sector.

Mike
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Re: [CentOS] Re: CentOS 5 LiveCD - When?

2007-06-20 Thread Mike McCarty

Scott Silva wrote:


Nevermind. I just checked the torrent and it seems to be dead.


Thanks for looking, anyway.

Mike
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Re: [CentOS] CentOS 5 LiveCD - When?

2007-06-20 Thread Mike McCarty

Peter Kjellstrom wrote:


As much as I like centos, when it comes to bleeding edge hardware I'd try an 
ubuntu or fedora live-cd (current is ubuntu-7.04 and fedora-7).


I use Fedora, myself. But neither of us likes churn.

Her hardware is not bleeding edge, it's four years old.
But, when we plugged a USB mouse into her machine, it
lost the keyboard. Windows recognizes both on that machine.

Reporting the error to Debian got a response which we both considered
less than satisfactory. A new HP printer was unusable. We
used the standard reporting technique to report the fact,
and didn't even get the curtesy of a response. I cobbled up
a file which at least let the printer more or less work, and
posted it to them, using the standard reporting technique,
and again didn't even get a response. She still can't use it
for scanning (SANE won't recognize it), nor can she mount
her camera flash sticks. When we reported the camera issue,
we were told that the problem was the USB dock she uses.
Others weighed in claiming that they couldn't use their
camera flash mems either, on a variety of USB docks. They
were told that they needed different hardware.

Months later, another guy posted that he had the same problem
she did with the keyboard, and was curtly told that he was full
of bull, and didn't know what he was talking about. He then
contacted me privately, and I told him that my fix was to
install a serial mouse. :-(

I don't think of camera memory docks, USB mice, and USB keyboards
as being bleeding edge hardware.

Debian is even worse than FC for taking Linux to be a religion.
She's about to shift to Windows XP or Widows 98, and abandon
Linux altogether.

Mike
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Re: [CentOS] Re: CentOS 5 LiveCD - When?

2007-06-20 Thread Mike McCarty

Scott Silva wrote:


Please, don't let her go to Windows 98. Too out of date for anything that
might touch the internet. Just trying to prevent one bot from being added
to the herd!



Do you let or prevent your GF from doing things? I don't.

Mike
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Re: [CentOS] CentOS 5 LiveCD - When?

2007-06-20 Thread Mike McCarty

Daniel de Kok wrote:

On Wed, 2007-06-20 at 03:17 -0500, Mike McCarty wrote:


Her hardware is not bleeding edge, it's four years old.
But, when we plugged a USB mouse into her machine, it
lost the keyboard. Windows recognizes both on that machine.



CentOS 4 works great with older hardware, and is supported with security
updates until 2012. There's a CentOS 4.4 live CD available through:

http://isoredirect.centos.org/centos/4.4/isos/i386/


Thanks, I pulled that and checked the checksums. I'll be seeing
her tonight, and give it a try.

I've heard that CentOS is not the greatest for desktop, but very
nice for servers. Would another distro be more suitable for
a desktop for a woman who is technically capable, but doesn't
want to dive under the hood often, and likes for her new
printer to just work?

Mike
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Oppose globalization and One World Governments like the UN.
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Re: [CentOS] CentOS 5 LiveCD - When?

2007-06-20 Thread Mike McCarty

Mike McCarty wrote:


I use Fedora, myself. But neither of us likes churn.

Her hardware is not bleeding edge, it's four years old.
But, when we plugged a USB mouse into her machine, it
lost the keyboard. Windows recognizes both on that machine.

Reporting the error to Debian got a response which we both considered
less than satisfactory. A new HP printer was unusable. We


[snip]

Sorry for the OT rant. I apologize. Debian is a fairly nice
distro. It's a little easier for the not completely technical
to manage what's on the machine, I think. But she wants sth
which just runs moreso now than in the past.

Mike
--
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Oppose globalization and One World Governments like the UN.
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[CentOS] CentOS 5 LiveCD - When?

2007-06-19 Thread Mike McCarty

I asked before (about 2 weeks) about this, and was told it was
in testing. I wonder when it will be available. My GF is considering
leaving Debian due to it not recognizing her hardware very well,
and I thought a CentOS 5 LiveCD might be a reasonable way for her
to see whether CentOS might do a better job.

If no LiveCD is forthcoming soon, then I'll burn a copy of the
CentOS 4 LiveCD and let her try that.

Thanks.

Mike
--
p=p=%c%s%c;main(){printf(p,34,p,34);};main(){printf(p,34,p,34);}
Oppose globalization and One World Governments like the UN.
This message made from 100% recycled bits.
You have found the bank of Larn.
I can explain it for you, but I can't understand it for you.
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