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• How to disable the RAID in x3400 M2

  - by BanKtsu

  Hi I just wanna disable the default RAID in my server IBM System X3400 M2 Server(7837-24X),i have 3 disk drives SAS. I want to make them a JBOD "Just a Bunch Of Disks", because I want to install in the drive 0 CentOS, and the other two make them cache files for a squid server. I disable the RAID in the BIOS: System Settings/Adapters and UEFI drivers/LSI Logic Fusion MPT SAS Driver -PciRoot(0x0)/Pci(0x3,0X0)/Pci(0x0,0x0) LSI Logic MPT Setup Utility RAID Properties/Delete Array Later I boot the CentOS live CD and install the OS in the drive 0, and the others 2 mounted like this: *LVM Volume Groups vg_proxyserver 139508 lv_root 51200 / ext4 lv_home 84276 /home ext4 lv_swap 4032 Hard Drive sdb(/dev/sdb) free 140011 sdc(/dev/sdc) free 140011 sdd(/dev/sdd) sdd1 500 /boot ext4 sdd2 139512 vg_proxyserver physical volume(LVM) But when I restart the server give me the error: Boot failed Hard Disk 0 UEFI PXE PciRoot(0x0)/Pci(0x1,0X0)/Pci(0x0,0x0)/MAC(001A64B15130,0X0)) ........PXE-E18:Server response timeout. UEFI PXE PciRoot(0x0)/Pci(0x1,0X0)/Pci(0x0,0x0)/MAC(001A64B15132,0X0)) ........PXE-E18:Server response timeout. and the OS not start. The IBM force me to do a RAID?,why?

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• Mac Management and Security

  - by Bart Silverstrim

  I was going through some literature on managing OS X laptops and asked someone some questions about usage scenarios when using the MacBooks. I asked someone more knowledgeable than I about whether it was possible for my Mac to be taken over if I were visiting another site for a conference or if I went on a wifi network at a local coffee house with policies from an OS X Server with workgroup manager (either legit for the site or someone running a version of OS X Server on hardware they have hidden somewhere on the network), which apparently could be set up to do things like limit my access to Finder or impose other neat whiz-bang management features. He said that it is indeed possible for it to happen as it would be assigned via the DHCP server and the OS X server would assume my Mac is a guest and could hand out restrictions and apparently my Mac will happily accept them without notifying me or giving me an option, unlike Windows which I believe would need to be joined to a domain before it becomes "managed" by Active Directory. So my question is as network admins and sysadmins with users traveling with MacBooks, is there a way to reasonably protect your users from having their machines hijacked without resorting to just turning off networking all the time? Or isn't this much of a security hazard? What threat does this pose to the road warriors in your businesses?

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• Newbie: get access privilege

  - by Mellon

  I am newbie on Linux Ubuntu machine. I logged in to the Ubuntu with username: student. There are some directories only allowed root user to access, for example /var/lib/mysql ,(I know I can use sudo to access but it is not what I want). If I want to get the access privilege on those directories with student account, is it so that I can run the following command : chown student: PATH_TO_ROOT_USER_PRIVILEGED_DIR and after that, I can access that directory by using my own account ? am I right? If I am right, then will root user lose the access privilege because I changed it to student user? If I am wrong, please tell me the right solution. P.S. please don't concern on what I am going to do on /var/lib/mysql directory, that is only my example, as I mentioned above, I mean generally *for those directories which only have root privilege*, can I use chown to change access privilege and will root user then loose the access because of the change made by chown ? I just wanna know the effect of chown.

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• How can a CentOS 6 guest running in VirtualBox be configured as a LAMP server that can be accessed from the Windows host?

  - by jtt89

  I was able to conect Centos6 on Virtual Box to Windows (I can ping in both directions) with Host-only Adapter (for connection between the two) and NAT Adapter (to enable Linux on VB to connect to the Internet). I want to set up httpd, mysql and vsftpd servers and in the end easily connect to httpd from Windows based browser and ftp server with a Windows based client as well. I would also want to have access through SSH. I have a general idea of the steps that are involved, but there is also a configuration that I am not sure about at this point. Lets say I follow these steps: yum install httpd yum install php php-pear php-mysql yum install mysql-server mysql_secure_installation yum install vsftpd yum install mod_ssl Technically I have everything installed, but what would be the next steps that I need to take (from the networking point of view, so to speak) to get it all working)? I know I need to configure, at least Apache, and ftp server, but I am not sure how is it gonna work; like where am I gonna be uloading the sites (I know this can vary), how am I gonna know what address to use in a browser if I wanna go to a website x, y, z on that installation etc. This sounds like I need to do some kind of DNS setup and I am kind of stuck at this point. If somebody could give me a general outline of what are the things that need to be done that would be great (I was looking at a lot of websites and I know about etc/sysconfig/network, httpd.config - not too much about it on Apache's site, hostname, hostname -f etc; but it is kind of hard to piece it all together at this point). I am gonna be looking at the books also, but they not always reflect the setup that I have too (VirtualBox). Thank you.

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• GTX 280 purple snow on bootup, card works without drivers

  - by Brokar

  i have owned a ASUS GTX280 for 3 years now. The card has been great all along but i started having problems 10 days ago. I was playing Diablo 3 for 1 week on max settings no problems, then suddenly my display kept getting some weird purple/colours as soon as i booted and logged into windows. Went into safe mode, updated drivers and it kept crashing. Formatted PC, fresh windows install with new WHQL drivers again same problem. Uninstalled nvidia drivers and pc has been running great for 4 days now, ofcourse i cannot run games but everything works on 1680x1050 resolution and i can browse internet,watch movies and use my PC for everything but gaming. As soon as i install nvidia drivers PC won't boot. I only wanna game a few hours a week (very busy program with school this month so it might be a blessing that i cannot game) and i would love it if i could keep the card. I am looking to upgrde later on when i will have time for gaming but i wonder if i could still use the card somehow with different/new drivers (tried older drivers that came with the card on a CD aswell) tldr: PC works fine with no nvidia drivers (apart from gaming ofc). Once i install WHQL drivers or older ones, cannot even log into windows. Fix?

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• Mac Management Without Permission and Security

  - by Bart Silverstrim

  I was going through some literature on managing OS X laptops and asked someone some questions about usage scenarios when using the MacBooks. I asked someone more knowledgeable than I about whether it was possible for my Mac to be taken over if I were visiting another site for a conference or if I went on a wifi network at a local coffee house with policies from an OS X Server with workgroup manager (either legit for the site or someone running a version of OS X Server on hardware they have hidden somewhere on the network), which apparently could be set up to do things like limit my access to Finder or impose other neat whiz-bang management features. He said that it is indeed possible for it to happen as it would be assigned via the DHCP server and the OS X server would assume my Mac is a guest and could hand out restrictions and apparently my Mac will happily accept them without notifying me or giving me an option, unlike Windows which I believe would need to be joined to a domain before it becomes "managed" by Active Directory. So my question is as network admins and sysadmins with users traveling with MacBooks, is there a way to reasonably protect your users from having their machines hijacked without resorting to just turning off networking all the time? Or isn't this much of a security hazard? What threat does this pose to the road warriors in your businesses?

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• Why have trackballs almost disappeared? [closed]

  - by Gary M. Mugford

  One of the movement sensors in my Microsoft Trackball Explorer has failed and right now I am using a mouse. Ugggh! I'll got steal one of the various Logitech trackballs spread around the house, but they all have issues. The Trackman has a horrible placement for the scroll wheel. Others have marbles for the thumb rather than a big ball for the fingers and at least one trackball is working around here without having a scroll wheel at all! (The one at the dinner table, for when I dine alone). My question is, why have trackballs fallen into disfavour? Seems to me that trackballs are great for crowded desktops (you know, the one with keyboards, notes, pens and coffee cups), and for laptops with those hated overly-sensitive touchpads. But right now, it seems to be a choice between that Logitech Trackman and some Kensington models that lack scroll wheels. All I want is a nice big ball to manipulate with the fingers and two buttons on the thumb side with the scroil wheel between them. Placement of other buttons is completely optional. Is that asking too much?

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• Virtual Lan on the Cloud -- Help Confirm my understanding?

  - by marfarma

  [Note: Tried to post this over at ServerFault, but I don't have enough 'points' for more than one link. Powers that be, move this question over there.] Please give this a quick read and let me know if I'm missing something before I start trying to make this work. I'm not a systems admin professional, and I'd hate to end up banging my head into the wall if I can avoid it. Goals: Create a 'road-warrior' capable star shaped virtual LAN for consultants who spend the majority of their time on client sites, and who's firm has no physical network or servers. Enable CIFS access to a cloud-server based installation of Alfresco Allow Eventual implementation of some form of single-sign-on ( OpenLDAP server ) access to Alfresco and other server applications implemented in the future Given: All Servers will live in the public internet cloud (Rackspace Cloud Servers) OpenVPN Server will be a Linux disto, probably Ubuntu 9.x, installed on same server as Alfresco (at least to start) Staff will access server applications and resources from client sites, hotels, trains, planes, coffee shops or their homes over various ISP, using their company laptops or personal home desktops. Based on my Research thus far, to accomplish this, I'll need: OpenVPN with Bridging Enabled to create a star shaped "virtual" LAN http://openvpn.net/index.php/open-source/documentation/miscellaneous/76-ethernet-bridging.html A Road Warrior Network Configuration, as described in this Shorewall article (lower down the page) http://www.shorewall.net/OPENVPN.html Configure bridge addressesing (probably DHCP) http://openvpn.net/index.php/open-source/faq.html#bridge-addressing Configure CIFS / Samba to accept VPN IP address http://serverfault.com/questions/137933/howto-access-samba-share-over-vpn-tunnel Set up Client software, with keys configured for access (potentially through a OpenVPN-Sa client portal) http://www.openvpn.net/index.php/access-server/download-openvpn-as/221-installation-overview.html

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• get ubuntu terminal to send an escape sequence (control+shift+up)

  - by user62046

  This problem starts when I use emacs ( with -nw option). Let me first explain it. I tried to define hotkey (for emacs) as following (global-set-key [(control shift up)] 'other-window) but it doesn't work (no error, just doesn't work), neither does (global-set-key [(control shift down)] 'other-window) But (global-set-key [(control shift right)] 'other-window) and (global-set-key [(control shift left)] 'other-window) work! But because the last two key combinations are used by emacs (as default), I don't wanna change them for other functions. So how could I make control-shift-up and control-shift-down work? I have googled "(control shift up)", it seems that control-shift-up is used by other people, (but not very few results). In the Stack Overflow forum, Gille answered me as following: Ctrl+Shift+Up does send a signal to your computer, but your terminal emulator is apparently not transmitting any escape sequence for it. So your problem is in two parts. First you must get your terminal emulator to send an escape sequence, which depends on your terminal emulator, and is Super User material, or Unix.SE if you're using a unix system. Then you need to declare the escape sequence in Emacs, and my answer explains that part So I come here for this question: How do I get my terminal (I use ubuntu 10.04, and the built-in terminal) to send an escape sequence for Control+Shift+Up Control+Shift+down

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• mysql cmd promt import data.sql

  - by udhaya

  i wanna import sql using cmd prompt. first open windows cmd prompt, navigate to xampp/mysql/bin folder & run mysql this error occurs D:\Program Files\xampp\mysql\bin>mysql ERROR 1045 (28000): Access denied for user 'ODBC'@'localhost' (using password: N O) D:\Program Files\xampp\mysql\bin>mysql -u root -p -h localhost dev1base < dev1b ase.sql Enter password: D:\Program Files\xampp\mysql\bin> D:\Program Files\xampp\mysql\bin>mysql -u root Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 104 Server version: 5.0.51a Source distribution Type 'help;' or '\h' for help. Type '\c' to clear the buffer. mysql> mysql> -h localhost dev1base < dev1base.sql -> -> -> ->

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• openvpn& iptables -- portforwarding and gateway

  - by Smith.Lai

  The problem is similar to this scenario: iptables rule still take effect after deleted Scenario: There are several clients(C1~C10) providing some services, such as SSH,HTTP..... The clients are actually a personal computer behind NAT. Their IP might be 192.168.0.x For easily access these machines through internet, I built a OpenVPN server(S1). All the C1~C10 connect to S1 with VPN address 10.8.0.x If A user(U1) wanna access C1 SSH through internet, he can connect to S1 with port "55555", and S1 port forward 55555 to 10.8.0.6:22 echo 1 /proc/sys/net/ipv4/ip_forward iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 55555 -j DNAT --to-destination 10.8.0.6:22 It works well until I mark the following in the openvpn server.conf: I marked this because I think this will make all connection go through S1 ;push "redirect-gateway" |-------(NAT)--------| (C1)--| (INTERNET)----(U1) |-----(VPN)----(S1)--| The C1~C10 have their own path to access internet resource through NAT . The server loading would be heavy if all C1~C10 connection go through S1 (for example, C1 is sending data to C2, or C1 is downloading data from a FTP site). Is there a way to solve this quandary?

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• Use Mac OS X Server As Development Environment

  - by macinjosh

  I've installed Mac OS X Server 10.6.3 on my laptop to use as my normal OS. I do a lot of web development and thought it would be handy to run OS X Server so I could more easily manage my local development environment (Apache Virtual Hosts, Hostnames for each local site, etc). I'm really enjoying the new setup except for one problem. DNS. My ideal situation would be to add a site (some-site.local) in the Web Service and then go to the DNS Service and add a primary record for the new site. I actually got this working at one point but after a reboot it stopped working! The records look the same as they did before the reboot but the site doesn't come up in Safari. Here is a list of my needs: Need to be able to add new domains at a whim Domains always map to a site on the same box's Web Service Local & External IPs often change It would nice if it worked on any network (i.e. WiFi at the airport or coffee shop) Sites only need to be accessible locally Configuration should stay put even after rebooting I've done some googling and used this as a bit of guide. In the past I've used MAMP and then just a local Apache/PHP/MySQL install with a manually managed hosts file. I'd rather not go back.

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• Starting airplay from command line, to send output of 'Say' Mac OS X command to airplay

  - by Fabien

  Ok, Sunday question :) Trying to make a little joke... 1) if you open a terminal, and type "say -a ?", Mac OS X will give you the list of devices it can send spoken words to. On mine, it says: 39 AirPlay 47 Built-in Output 2) I have a Denon airplay-ready received in my living room and I'm trying to send spoken words to my wife downstairs... I can send music without any problem using iTunes so, from an infrastructure standpoint, I'm all set. 3) I want my computer to say (out of the blue) "Honey, why don't you bring me a cup of coffee". I can make it say that locally on my internal laptop speakers, but I can't seem to send that to device 39 successfully. I am suspecting that there are a few other things that need to be setup before it works, i.e. setting up airplay output to "denon", maybe opening a channel and reserving it. I don't know. Has anyone played with this? Is there a way to setup airplay from the command line? That would be awesome :)

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• installing lots of perl modules

  - by Colin Pickard

  Hi, I've been landed with the job of documenting how to install a very complicated application onto a clean server. Part of the application requires a lot of perl scripts, each of which seem to require lots of different perl modules. I don't know much about perl, and I only know one way to install the required modules. This means my documentation now looks this: Type each of these commands and accept all the defaults: sudo perl -MCPAN -e 'install JSON' sudo perl -MCPAN -e 'install Date::Simple' sudo perl -MCPAN -e 'install Log::Log4perl' sudo perl -MCPAN -e 'install Email::Simple' (.... continues for 2 more pages... ) Is there any way I can do all this one line like I can with aptitude i.e. Type the following command and go get a coffee: sudo aptitude install openssh-server libapache2-mod-perl2 build-essential ... Thank you (on behalf of the long suffering people who will be reading my document) EDIT: The best way to do this is to use the packaged versions. For the modules which were not packaged for Ubuntu 10.10 I ended up with a little perl script which I found here ) #!/usr/bin/perl -w use CPANPLUS; use strict; CPANPLUS::Backend->new( conf => { prereqs => 1 } )->install( modules => [ qw( Date::Simple File::Slurp LWP::Simple MIME::Base64 MIME::Parser MIME::QuotedPrint ) ] ); This means I can put a nice one liner in my document: sudo perl installmodules.pl

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• MAMP Pro .xip.io, fixing urls with htaccess

  - by user3540018

  I've got all my websites set up with MAMP Pro. For instance, I got it set up, so when I go to example.com, the browser displays the website that's set up on my iMac. Now, I wanna get MAMP Pro to work so I can view my website on my other computers/devices (which are all hooked up on the same network.) So far all I had to do is check the checkbox "via Xip.io (LAN only)", and now I can view my website on my other computers/devices within my LAN by simply going to example.com.10.0.1.13.xip.io. Problem is, whenever I'm on this other computer/device, when I click on the links, I get 404 error. ie. whenever I go to example.com/news, I get the 404. But when I go to example.com.10.0.1.13.xip.io/news, THEN I get the right page. So in order to solve my problem I need to rewrite the urls. So whenever someone clicks on a link ie. goes straight to example.com/news, he'll go to example.com.10.0.1.13.xip.io/news. I don't want to change all the links in my MySQL file, but I believe I can do it simply with the htaccess file. I've opened the htaccess file and added the last two lines, but it just doesn't work. <IfModule mod_rewrite.c> RewriteEngine On # Send would-be 404 requests to Craft RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{REQUEST_URI} !^/(favicon\.ico|apple-touch-icon.*\.png)$ [NC] RewriteRule (.+) index.php?p=$1 [QSA,L] RewriteCond %{HTTP_HOST} ^example\.com RewriteRule ^(.*)$ http://www.example.com.10.0.1.13.xip.io/$1 [R=permanent,L] </IfModule> Or perhaps I don't need to change the htaccess file, is there something that I could be missing in the MAMP Pro settings, or perhaps a MAMP extension that I need?

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• Allow incoming connections on Windows Server 2008 R2

  - by Richard-MX

  Good day people. First, im new to Windows Server. I've always used Linux/Apache combo, but, my client has and AWS EC2 Windows Server 2008 R2 instance and he wants everything in there. Im working with IIS and PHP enabled as Fast-CGI and everything is working, but, i cant see the websites stored in it from internet. The public DNS that AWS gave us for that instance is: http://ec2-XX-XXX-XXX-121.us-west-2.compute.amazonaws.com/ But, if i copy paste that address, i get nothing, no IIS logo or something like that. My common sense tells me that maybe the firewall could be blocking the access. Can anyone help me and tell where to enable some rules to get this thing working? I don't wanna start enabling rules at random and make the system insecure. If you need any additional info, you can ask me and i will provide it. Thanks in advance. UPDATE: Amazon EC2 display this: Public DNS: ec2-XX-XXX-XXX-121.us-west-2.compute.amazonaws.com Private DNS: ip-XX-XXX-XX-252.us-west-2.compute.internal Private IPs: XX.XXX.XX.25 In my test microinstance, i just to use the Public DNS address (the one that starts with "ec2") and it works like a charm (of course, the micro instance have its own Public DNS im not assuming same address for both instances...) However, for the large instance, i tried to do the same. Set up everything as in the micro instance but if i use the Public DNS, it doesnt load anything. Im suspicious about the Windows Firewall, but, the HTTP related stuff is enabled. What should i do to get access to the large instance? I don't want to set up the domain yet, i want access from an amazon url. 2ND EDIT: all fixed. Charles pointed that maybe Security Groups was not properly set up for the instance. He was right. Just added HTTP service to the rules and all works good.

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• Is iptable capable of this or should I go with mod_proxy?

  - by Jesper

  I'm trying to configure my network to receive an incoming connection on one device and then redirect it to another device on a specific port. Right now I'm on about port 80 and a device running apache. The problem I'm facing is that when the forwarding is done it also sets the source ip to the first device instead of the source ip the user that connects to the service has. Let me illustrate it: [Internet User] = 7.7.7.7 connects to [Device 1] = 1.1.1.1:80 [Device 1] forwards it to [Device 2] = 1.1.1.2:80 [Device 2] outputs response that [Internet User] sees So on [Device 2] I will naturally see [Device 1]s IP in the logs, but I wanna see if there is a way to connect the internet user through [Device 1] to [Device 2] while seeing the real source IP in the logs on [Device 2]. Is that possible? My rule-set looks like this at the moment: (on Device 1) iptables -P FORWARD ACCEPT iptables -t nat -I PREROUTING -j DNAT -p tcp --dport 80 --to-destination 1.1.1.2:80 iptables -t nat -I POSTROUTING -j SNAT -p tcp -d 1.1.1.2 --to-source 1.1.1.1 On [Device 2] it accepts all incoming on port 80 from [Device 1] as well as accepts all related and established connections. So, would there be any way to get the real source onto [Device 2]? Let me know if you need more information!

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• How can I filter data based on items in a list?

  - by user2964366

  How can I filter entries containing any specific word in a list of words? For example, I have a list of road names in Singapore. Amoy Street, Singapore Ann Siang Hill Anson Road Arab Street Armenian Street, Singapore BBaghdad Street (Singapore) Balestier Road Banda Street Bartley Road Beach Road, Singapore Bencoolen Street Bernam Street Boat Quay Boon Tat Street Boundary Road, Singapore Bras Basah Road Bugis Street Bukit Batok Road Bukit Pasoh Road Bukit Timah Road CCantonment Road, Singapore Choa Chu Kang Road Clarke Quay Clementi Road Club Street Collyer Quay Connaught Drive Craig Road (Singapore) Cross Street and many more My spreadsheet has a large number of entries like the following, which may or may not contain road names mentioned in my list: Saw an accident at Thomson Road Found this by accident 6 vehicles crashed at Balestier Road I wanna crash now. So tired. Bus collides with bicycle at Arab Street. Accident at City Road. You can crash my house later. How do I filter to return entries that contains any road name identified in the list of names? How do I introduce an array/list of road names into Microsoft Excel and then relate it to a filter function?

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• Computer sending data while turned off

  - by Nicklas Ansman

  I have a some what strange problem (which could have and easy and obvious solution for all I know). My problem is that when I've booted ubuntu (now 10.4 but same problem with 9.10) and turns it off it starts sending a HUGE amount of data via the ethernet cable, so much in fact that my router can't handle it and stops responding. As far as I can tell the computer is completely turned off with no fans spinning. I can add that if I boot windows I do not have this problem, just when exiting ubuntu. There are two "fixes" for my problem: Pull the ethernet cable until the next boot Turn off power to the PSU and wait for the capacitors to unload Is there anyone who knows what could be going on? I'd be happy to post some logs or conf-files. Currently I'm using the ethernet port on my motherboard which is a Asus P6T Deluxe V2 with an updated version of the BIOS (maybe not the latest but since it only happens when I've been in ubuntu I don't wanna mess with the BIOS too much). Regards Nicklas ---------Update 1---------- The router is a D-Link DIR 655 with the latest firmware. ---------Update 2---------- I've now reinstalled ubuntu (with 10.4) and I still experience the same problem.

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• Disable RAID to JBOD in server IBM x3400 M2

  - by BanKtsu

  Hi I just wanna disable the default RAID in my server IBM System X3400 M2 Server(7837-24X),i have 3 disk drives SAS. I want to make them a JBOD "Just a Bunch Of Disks", because I want to install in the drive 0 CentOS, and the other two make them cache files for a squid server. I disable the RAID in the BIOS: System Settings/Adapters and UEFI drivers/LSI Logic Fusion MPT SAS Driver -PciRoot(0x0)/Pci(0x3,0X0)/Pci(0x0,0x0) LSI Logic MPT Setup Utility RAID Properties/Delete Array Later I boot the CentOS live CD and install the OS in the drive 0, and the others 2 mounted like this: *LVM Volume Groups vg_proxyserver 139508 lv_root 51200 / ext4 lv_home 84276 /home ext4 lv_swap 4032 Hard Drive sdb(/dev/sdb) free 140011 sdc(/dev/sdc) free 140011 sdd(/dev/sdd) sdd1 500 /boot ext4 sdd2 139512 vg_proxyserver physical volume(LVM) But when I restart the server give me the error: Boot failed Hard Disk 0 UEFI PXE PciRoot(0x0)/Pci(0x1,0X0)/Pci(0x0,0x0)/MAC(001A64B15130,0X0)) ........PXE-E18:Server response timeout. UEFI PXE PciRoot(0x0)/Pci(0x1,0X0)/Pci(0x0,0x0)/MAC(001A64B15132,0X0)) ........PXE-E18:Server response timeout. and the OS not start. The IBM force me to do a RAID?,why?

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• I want to use OpenVPN to access the web and email from China. How?

  - by gaoshan88

  My question: How do I use my already existing OpenVPN setup to enable secure, remote web surfing and email checking from open wireless hotspots? Some long winded details: I am running Ubuntu and have OpenVPN up and working fine as a server. My client machine connects fine as well. However, that just gets me a secure connection to my home network. What I want is to be able to access my VPN server and surf the web or check email securely from anywhere with an open wireless connection. I am frequently in China and having secure, unblocked access would be a boon (especially since I like to work from tea houses and coffee shops and I've already had a password sniffed and hacked once). I already know how to tunnel over SSH via a SOCKS proxy using something like: ssh -ND 8887 -p 22 [email protected] but since I have OpenVPN I figure why not try it? So... what are the steps involved in making it so I can connect to my VPN and the surf and check mail to my hearts content (slowly to be sure but at least it wold be secure). Thx!

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• Wireless card overheating?

  - by Sidney

  Ok, so I've had my laptop for several years (I wanna say 4, but possibly more), it's a Toshiba Satellite. I'm running Linux mint 15, and am having a strange new issue, after several hours of running my wireless stops. It can SEE wireless networks, but refuses to connect to any of them. (On a sidenote, connecting to a router with a cable at this point works fine) The fact that it can SEE the networks make me think the card is in good condition, and it's software related The fact that it works for several hours before booting me makes me think perhaps the transmitter is getting too hot. I don't use my laptop in dusty environments, and keep it on an elevated surface (alternatively, I actively try not to let it sit on soft surfaces where the vents get covered). I spray out the cpu fan about once a year with compressed air about once a year, so I really don't think the insides should be too dirty. Finally, unfortunately, sensors only gives me CPU temps, but they run about 40-50 degrees C, which from my understanding is perfectly normal for an I3. Does anyone have any suggestions on what I can do to determine the root cause of this?

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• Random "not accessible" "you might not have permission to use this network resource"

  - by Jim Fred

  A couple of computers, both Win7-64 can connect to shares on a NAS server, at least most of the time. At random intervals, these Win7-64 computers cannot access some shares but can access others on the same NAS. When access is denied, a dialog box appears saying "\\myServer\MyShare02 not accessible...you might not have permission to use this network resource..." Other shares, say \\myServer\MyShare01, ARE accessible from the affected computers and yet other computers CAN access the affected shares. Reboots of the affected computers seem to allow the affected computer to connect to the affected shares - but then, getting a cup of coffee seems to help too. When the problem appears, the network seems to be ok e.g. the affected computers can access other shares on the affected server and can ping etc. Also Other computers can access the affected shares. The NAS server is a NetGear ReadyNas Pro. The problem might be on the NAS side such as a resource limitation but since only 2 Win7-64 PCs seem to be affected the most, the problem could be on the PC side - I'm not sure yet. I of course searched for solutions and found several tips addressing initial connection problems (use correct workgroup name, use IP address instead of server name, remove security restrictions etc) but none of those remedies address the random nature of this problem.

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• Dual boot Windows 8 and Ubuntu 12.10 across a reboot

  - by AK4749

  My Setup: I have two separate SSDs, and each contains an independently bootable OS - W8 and U12.10. From my extremely limited knowledge, this means each has a functioning EFI partition(?). My default boot order (GA-Z68XP-UD3P mobo with UEFI firmware update) boots the UEFI partition containing windows first, but if I enter the BIOS I can select the "ubuntu" entry to successfully boot ubuntu. Both drives are GPT, and are EFI boots. What I want to do: Reboot Windows 8, re-enter W8 (this is happening now due to the default boot order). What I want to change, however, is to boot into Ubuntu if i reboot from ubuntu. Essentially, I would like to work within one OS unless I consciously choose otherwise. Normally, I would not even ask to something I thought was impossible, but... Why I think this is possible: When trying EasyBCD to add ubuntu to the W8 UEFI bootloader, I noticed an "iReboot" addon or something that allows you to select which OS to boot into from within the OS. Note that I ended up not using the NeoGrub entry to chain Ubuntu off the W8 bootloader because I couldn't get much help with it. Is this possible? Have I had too much coffee and gone insane? Thank you all for your time, AK

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• extra managed+unmanaged switches @ home/office -- best (mis)usage scenario? what would you do?

  - by locuse

  up front -- definitely NOT a mission-critical kind of question. after a 'spring cleaning' of my local office, i've ended up with two 'spare' GigE switches at my home/office -- one managed, capable of VLANs, QoS, etc, and the other unmanaged. i've got more ports than i need. in fact EACH switch has more total ports than i need. but, since i can't have these just sitting around not doing SOMETHING ... ;-) i'm interested in ideas for best combined use of these switches. my local topology is simple: [ net ] -- [ adsl2 modem ] -- [linux firewall/router/DNS ] _______________| | [ some arrangement of the 2 GigE switches ] | ( ... stuff on the lan ... ) [WAP1] [voip ATA] [printer] [desktop1] [mail server] [Xen server [desktop2] ( mostly dev, [desktop3] + file server [desktop4] + media server)] the MailServer is a production mail server the XenServer serves some low vol to the 'net; the MediaServer guest serves ONLY to the LAN is there, e.g., any performance value in segmenting off any of the LAN using the managed switch (VLAN? QoS tagging? something?), feeding the rest into the connected unmanaged switch? or should i simply use one of the switches & be done with it, and use the other for a coffee-cup stand?

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