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About John H.
(Top Expert on this page)

Expertise
Anything relevant to Unix/Linux architecture. Everything from the boot process up to application or system-specific information.

Experience
Solaris and Linux experience since '99.

Organizations
Huntsville Microsoft Users Group, Huntsville Macintosh User Group (not current), Linux users of North Alabama.

Education/Credentials
A , Net , RHCT, Linux , MCP, CNA, Degree in Networking.

Past/Present Clients
IT Consultant for Huntsville Radiology Group, various local small businesses.

   

You are here:  Experts > Computing/Technology > Focus on Unix > Unix/Linux OS

Questions Answered By Expert  John H. 
In Category  Unix/Linux OS

SubjectDate Asked

edit stuff10/29/2009
  Q: there exist a script looks like this expect { -re ".*X.*" {send "A-specific ";sleep 1} -re ".*X2.*" ...
  A: As with most things in Unix/Linux, there are several ways you could accomplish this. First, I'm not ...
proceedures to set up a dual drive10/28/2009
  Q: I have two drives one with one program and another program in the other. they cannot run at the same ...
  A: I believe I'm going to need a bit more information before I can assist. Are you saying your ...
YUM on SUSE9/17/2009
  Q: Hope you are doing well I am working as a Linux admin where we patch Redhat linux servers using ...
  A: I don't typically work with Suse systems, but it's just another linux distribution so it can't be ...
df: unknown command: i8/20/2009
  Q: i try to run the command: df with the -i option but it wouldnt work instead the message 'df: unknown ...
  A: JK, Although most *nix-related distributions have the same binaries installed, not all have the ...
problems with ubuntu8/13/2009
  Q: I purchased a Dell inspiron 1545 and it came with ubuntu, but my problem is, i can't watch movies on ...
  A: A lot of other folks have been complaining about the ubuntu version that's pre-loaded on these newer ...
Ubuntu 9.04 "jaunty" MTP connection device problem8/7/2009
  Q: I recently installed Ubuntu Remix on my netbook. I currently own a Creative Zen Moziac mp3 player ...
  A: I'm not sure why you're having to revert to Wine just to get your MP3 player sync'ed up with your ...
fill 1 in every register7/15/2009
  Q: we can use /dev/zeros to fill zero (0) in every register(for Data) of Hard Disk. Is there any way to ...
  A: Well, in theory, I suppose you could create a file that contains one byte and use dd to perform the ...
Passwords7/13/2009
  Q: Where does Unix/Linux store windows user passwords/credentials? Is it a file? If it is: Is the file ...
  A: Rick, Just because code is open source, doesn't make it any more "hackable" than its counterpart, ...
Passwords7/10/2009
  Q: Where does Unix/Linux store windows user passwords/credentials? Is it a file? If it is: Is the file ...
  A: Actually, if someone were to ask me which system and its process of password usage were compared ...
Passwords7/10/2009
  Q: Where does Unix/Linux store windows user passwords/credentials? Is it a file? If it is: Is the file ...
  A: I'm not quite sure what you're asking here. You say you want the location of "windows user ...
Your system appears to have shut down uncleanly7/1/2009
  Q: I have NSM Xpress installed in my customer side .by mistake power cable unplugged from NSM after ...
  A: Ahmad, Honestly, your best bet is to get your local linux guru(s) involved and, if that's not ...
Your system appears to have shut down uncleanly6/30/2009
  Q: I have NSM Xpress installed in my customer side .by mistake power cable unplugged from NSM after ...
  A: Some questions: 1) Is /var/netscreen a local installation or is it mapped via NFS or some other ...
linux/window6/29/2009
  Q: Is it possible to use two operating system on one computer using two hard disc, on one hard disc ...
  A: Short answer is "yes". However, your MBR (master boot record), aka bootstrap, will contain pointers ...
Iso-scan cannot find the image in debian6/16/2009
  Q: please help me out with this http://paste.debian.net/39219/ ANSWER: Hi Wen, I'm trying to ...
  A: Ok, have you verified the integrity of this ISO by running the md5sum utility against it? This ...
linux (fedora) boot up in silent mode6/16/2009
  Q: Is there an easy way (not patching the kernel) to set up linux to boot without all the system ...
  A: I believe what you're after is found within this forum: ...
Automate GUI6/9/2009
  Q: In windows there exist 'autoit', 'autohotkey' to automate GUI. What about linux? I know expect/tk ...
  A: I believe I've found the most relevant results within the Autohotkey forums themselves: ...
Fedora wirless network setup5/28/2009
  Q: I have setup Fedora running from flash drive. After I updated the package using yum it is running ...
  A: It would be nice to know what version Fedora you're running. Without knowing that, it's a bit ...
Linux boot after installation5/18/2009
  Q: John, I am having a problem getting Debian to work on my laptop. I have a newer HP G60. I ...
  A: That laptop looks like a fairly new model. I'm not finding all that much information on people's ...
change ubuntu to windows xp5/4/2009
  Q: I bought a note book witch runs ubuntu.I want to change it to run windows xp but their is no cd ...
  A: Well, there are a few different ways you could go about this. The first (and perhaps easiest) is to ...
YUM concerns4/26/2009
  Q: Hope you are doing well, I am working on a Redhat linux Env.Normally I update the OS/Kernel using ...
  A: Do a "which strace" to see whether you have the package strace installed. Make sure you run this ...
How to use more memory than local machine4/24/2009
  Q: Is there a Linux feature/technology that will allow me to run an application that needs/requires a ...
  A: I don't believe this is possible for the average user. Technically, if you could make the ...
Printer for Acer mini notebook4/9/2009
  Q: My octogenarian sister, who knows nothing about computers, is running a brand-new Acer Aspire ...
  A: First off, congratulations on how you've approached this. I'm quite surprised you didn't purchase ...
update-rc.d equivalent in slacware3/23/2009
  Q: I am not sure if u r familiar with slackware. I am using debian and boot script via update-rc.d it's ...
  A: Well, I am familiar with Slackware, but I'm not sure that update-rc.d would be compatible with ...
fill 1 in every register3/21/2009
  Q: we can use /dev/zeros to fill zero (0) in every register(for Data) of Hard Disk. Is there any way to ...
  A: Well, I'd say it's possible, but I'm not sure what would be different between wiping a hard drive ...
apache - turn off logging3/16/2009
  Q: i would like to ask if there is a way to turn off logging of the apache web server(both access and ...
  A: Jimmy, Yep, you're sure right. I sent you the wrong link. Sorry about that. I meant to send this ...
RPM Doubts3/16/2009
  Q: Hope you are Doing well When you install a RPM(OPENSSH)on Redhat Linux4. Normally Where it will get ...
  A: Using good ole google.com/linux, I was able to come up with a ton of relevant matches to what you're ...
Linux files3/16/2009
  Q: I Have a computer running linux mint (Which is pretty much a spruced up version of ubuntu) and I was ...
  A: I think what you're after is something called Samba. This is used on the linux side which allows ...
partitioning3/2/2009
  Q: How are you? I have Windows Vista running on Dell Vostro that has 2 hard drives. I would like to ...
  A: This is definitely possible. Unfortunately, KDE is not a linux distribution - it's a window ...
linux O s3/1/2009
  Q: i recently bought an acer aspire one netbook and i wanted to restore it to factory settings i ...
  A: Alright. So, from here, I'm going to need some information from you before we can continue. First ...
linux O s3/1/2009
  Q: i recently bought an acer aspire one netbook and i wanted to restore it to factory settings i ...
  A: I believe I've found what you're looking for. It appears someone else was having similar problems ...
2 Linux Questions3/1/2009
  Q: Hey John, Like most people, I've been brought up for most most of my life using Windows. However, ...
  A: Glad to hear you're not one of the blind masses that believe Microsoft is the only answer. It's ...
VMWARE2/26/2009
  Q: I use Vmware for a period of time. recently I try their so-called 'share folders' I read the user ...
  A: Without attempting to reinvent the wheel here with the explanation of shared folders, I believe this ...
Upgraded OS Causes issues with Web2/26/2009
  Q: John, Thank you for your time. My issue is that I upgraded my pc from Mint Elyssa (Ubuntu 8.4) to ...
  A: It's quite possible that the newer version of Ubuntu isn't addressing your network card drivers ...
Knoppix Linux does not recognize external cd-rw drive2/24/2009
  Q: I am trying to use the Knoppix Linux cd to boot my Win XP computer that cannot finish booting in Win ...
  A: Sorry, I should have been clearer. The character is actually called pipe symbol and it's usually ...
Knoppix Linux does not recognize external cd-rw drive2/21/2009
  Q: I am trying to use the Knoppix Linux cd to boot my Win XP computer that cannot finish booting in Win ...
  A: Please do the following: 1) Plug the external drive into the machine. 2) Immediately after you've ...
double click2/17/2009
  Q: I am a 20+ year Windows user attempting to migrate to Linux. I am arthritic and have difficulty ...
  A: Nice name. 8^) Honestly, I'm not entirely sure how one would go about doing this. My advice to ...
Headphones are not working in Xubuntu2/10/2009
  Q: I'm new in Linux, in fact I just installed Xubuntu for the first time in my life and I'm trying to ...
  A: Keanu, I haven't used Thunar before, but if it has similar functionality to Nautilus. It seems ...
WebMail & Web Server creation for my company2/7/2009
  Q: I want to create “Web Mail”, “Web Server” in Linux 4.0 for my company. My Mail Server runs by RedHat ...
  A: Well, while I could provide this information to you, I'm afraid I'd be reinventing the wheel. Your ...
Ubuntu Linux bootup issue2/6/2009
  Q: John H. Alright. I use Ubuntu 5.10 on my PC. I stuck the tower in a closet for 5 months to drive ...
  A: Since I can't see what your system is actually doing, I can't know for sure that you're looking at ...
Ubuntu Linux bootup issue2/6/2009
  Q: John H. Alright. I use Ubuntu 5.10 on my PC. I stuck the tower in a closet for 5 months to drive ...
  A: Hey there Kyle. It's just John, by the way. I work for a living. 8^) Thank you though. Well, ...
rsync to clone Linux server2/3/2009
  Q: John, I have a RedHat Linux web/database server running on a Dell 2600 machine. I have what ...
  A: Just to clarify, it sounds like you just need to clone a machine using RAID5 to another machine so ...
Password protection1/31/2009
  Q: I have a PC running Linux and as a concerned parent would like to know if I can password protect the ...
  A: The short answer is yes. It would be helpful to know which distribution of linux you're running for ...
Headphones are not working in Xubuntu1/27/2009
  Q: I'm new in Linux, in fact I just installed Xubuntu for the first time in my life and I'm trying to ...
  A: Keanu, Go to Places in Xubuntu's Gnome interface and see if you're able to see the contents of your ...
Headphones are not working in Xubuntu1/26/2009
  Q: I'm new in Linux, in fact I just installed Xubuntu for the first time in my life and I'm trying to ...
  A: The name is actually John, but that's alright. I'll forgive you this time. 8^) I'll address your ...
Linux (Mint) installation1/24/2009
  Q: OK John - thanks for your time. I am very new to Linux. I have a PC running windows XP and I have ...
  A: Well, if your intention is to just use linux without impacting your master boot record, I would ...
Which Linux to install?1/23/2009
  Q: I have a PC with 2.4 Ghz Pentium 4 processor, 256 MB RAM and 40 GB Hard disk. Right now I'm using ...
  A: In order to make the most out of your experience, I would highly suggest you obtain Ubuntu 8.10 AND, ...
installation of linux1/9/2009
  Q: sir, i installed fedora 9 i-386 on my pc with specifiacations intel dgc102 motherboard,160 gb sata ...
  A: Sorry it has taken me a couple of days to get back to you. I travel for my company and am currently ...
Removing/reasembling linux RAID11/7/2009
  Q: I got stuck with a non booting disc. I need to make the disc bootable again, without loosing the ...
  A: Sorry to hear you're having trouble getting your box to boot. When reporting problems such as this, ...
At the instance of the booting1/6/2009
  Q: Could you please explain me the first task performed by a kernel. How does the kernel identify ...
  A: I was able to find what I believe to be relevant to the information you are requesting by using the ...
Memory Usage Analysis1/2/2009
  Q: I need some clarifications on Memory usage of Oracle database servers. A Production database on ...
  A: While your question concerning the "free" command is somewhat relevant to the problem you're ...
how to increase the timing of bootloader screen.12/23/2008
  Q: I have 2 OS on my comp. red hat enterprise edition and windows xp. 1)as soon as i start my comp. a ...
  A: For this, you'll need to edit the boot menu which is located here: /boot/grub/menu.lst I would ...
Running a server program in wrapper (daemon) mode12/14/2008
  Q: The wrapper (server program)is running OK on a unix machine only when an xterm is open towards the ...
  A: I'd like to receive additional information about your environment before I can address your question ...
How to uninstall ubuntu from my pc12/5/2008
  Q: i have done something really stupid and now i am totally stuck, i installed ubuntu on top of Windows ...
  A: You getting your Windows operating system back onto your hard drive without much heartache will ...
Errror in Booting Redhat box12/3/2008
  Q: I wonder if you can help me figure what is wrong with my system. I have an IBM eServer with three ...
  A: Majid, Here's a URL for rescue mode that might contain some helpful information: ...
Errror in Booting Redhat box12/2/2008
  Q: I wonder if you can help me figure what is wrong with my system. I have an IBM eServer with three ...
  A: From the looks of things (and without more information from the boot process), your kernel no longer ...
unix utilities11/26/2008
  Q: sir, can we use UNIX utilities in dos environment ?
  A: Short answer is, DOS actually derived many of the same commands from the Unix world. So, in a way, ...
Prompt password11/25/2008
  Q: I have uploaded a file on web by ftp and have kept in my mail server which is Linux-V-4.0 under ...
  A: There's a specific set of instructions one must follow before the user will see the requested ...
question abt installing unix11/22/2008
  Q: i want to install windows and unix on one computer. is it possible? pls guide how to do this,
  A: What you want to do is referred to as "dual-booting" and yes, it's possible. You want to have ...
boot stop at Setting up Logical Volume Management11/13/2008
  Q: I got a linux box tha was accidentally shutdown and on boot it stop at Setting up Logical Volume ...
  A: Have you tried allowing linux to check the filesystem's integrity? You may want to try this first. ...

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