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• Autologin 2 Windows users OR Login another user from the desktop

  - by fpdragon

  I'm using two windows users on my HTPC at the same time. One is just for watching videos and one for administration via remote. This setup is quite ideal for me since windows can handle multiple concurrent logins and the win "rdp concurrent hack" (Google). The problem is, I want both users to be logged in automatically when the pc was started. It shall be possible to watch tv and also the admin user shall be automatically logged in to start my scripts and other tasks, even if I haven't logged in via remote desktop manually. Later, when I want to admin my htpc I can just rdp connect the admin user without interrupting the video playback on the actual HTPC's screen and check my cleanup tasks, downloads, ... witch already executed for this admin user. But right now I found no solution to automatically login user A from a user B desktop and I also found no solution to autologin both users immediately at startup. As a workaround I have to fire up my other notebook machine and login one time with the remote user via rdp. From this time on the remote admin user is running concurrent with the main user in the background of the machine. The other workaround would be... after startup switch user from main user to admin user and then back again. But that also requires manual steps. I'm on a Windows 8 System right now but all infos for Win7 or XP would be also interesting. thanks a lot for all ideas. PS: just to prevent useless posts... don't tell me that only one user can be logged in to windows. ;)

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• 10 GigE interfaces limits single connection throughput to 1 Gb on a ProCurve 4208vl

  - by wazoox

  The setup is as follow : 3 Linux servers with Intel CX4 10 GigE controllers and an X-Serve with a Myricom 10 GigE CX4 controller are connected to a ProCurve 4208vl switch, with a myriad of other machines connected through good ol' 1000 base-T. The interfaces are actually set up as 10 Gig, according to both the switch monitoring interface and the servers (ethtool, etc). However a single connection between two 10 GigE equipped machines through the switch is limited to exactly 1Gb. If I connect two of the 10 GigE machines directly with a CX4 cable, netperf reports the link bandwidth as 9000 Mb/s. NFS achieves about 550 MB/s transfers. But when I'm using the switch, the connection tops at 950 Mb/s through netperf and 110 MB/s with NFS. When I open several connections from 3 of the machines to the 4th, I get 350 MB/s of NFS transfer speed. So each individual 10 GigE ports actually can reach much more than 1 Gb, but individual connections are strictly limited to 1 Gb. Conclusion : the 10 GigE connection through the switch behaves exactly like a trunk of 10 1 Gb connections. That doesn't make any sense to me, unless HP planned these ports only for cascading switches or strictly for many-clients-to-single-server connection. Unfortunately this is NOT the envisioned setup, we need big throughput from machine to machine. Is this a not-so-known (or carefully hidden...) limitation of this type of switch? Should I suggest seppuku to the HP representative? Does anyone have any idea on how to enable a proper behaviour ? I upgraded for an hefty price from bonded 1Gb links to 10 GigE and see exactly ZERO gain! That's absolutely unacceptable.

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• How do I get basic ProxyPass to work on Apache 2.2.17?

  - by Ansis Malins

  I'm trying to get around the ERR_UNSAFE_PORT restriction in Chrome by making Apache reverse proxy other HTTP servers on the machine. I load mod_proxy with sudo e2enmod proxy I add ProxyPass /znc/ http://localhost:6667/ to my httpd.conf I restart Apache with sudo /etc/init.d/apache2 restart When I open up /znc/, I get 500 Internal Server Error. I added LogLevel debug, restarted apache, tried again, and got nothing suspicous: [Fri Oct 19 18:55:17 2012] [debug] proxy_util.c(1818): proxy: grabbed scoreboard slot 0 in child 21528 for worker http://localhost:6667/ [Fri Oct 19 18:55:17 2012] [debug] proxy_util.c(1934): proxy: initialized single connection worker 0 in child 21528 for (localhost) [Fri Oct 19 18:55:17 2012] [debug] proxy_util.c(1818): proxy: grabbed scoreboard slot 1 in child 21528 for worker proxy:reverse [Fri Oct 19 18:55:17 2012] [debug] proxy_util.c(1934): proxy: initialized single connection worker 1 in child 21528 for (*) [Fri Oct 19 18:55:17 2012] [notice] Apache/2.2.17 (Ubuntu) PHP/5.3.8 configured -- resuming normal operations [Fri Oct 19 18:55:17 2012] [info] Server built: Feb 14 2012 17:59:20 [Fri Oct 19 18:55:17 2012] [debug] prefork.c(1018): AcceptMutex: sysvsem (default: sysvsem) [Fri Oct 19 18:55:22 2012] [debug] proxy_util.c(1818): proxy: grabbed scoreboard slot 0 in child 21532 for worker http://localhost:6667/ [Fri Oct 19 18:55:22 2012] [debug] proxy_util.c(1837): proxy: worker http://localhost:6667/ already initialized [Fri Oct 19 18:55:22 2012] [debug] proxy_util.c(1934): proxy: initialized single connection worker 0 in child 21532 for (localhost) [Fri Oct 19 18:55:22 2012] [debug] proxy_util.c(1818): proxy: grabbed scoreboard slot 1 in child 21532 for worker proxy:reverse [Fri Oct 19 18:55:22 2012] [debug] proxy_util.c(1837): proxy: worker proxy:reverse already initialized [Fri Oct 19 18:55:22 2012] [debug] proxy_util.c(1934): proxy: initialized single connection worker 1 in child 21532 for (*) So I'm stumped at this point. What to do? I'm running Ubuntu Server 11.10. ZNC responds with a correct 200 OK and HTML when queried directly both from the local machine and the Internet.

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• Network card/driver stops under heavy load

  - by Uwe Keim

  Since about approx. 2 month, I do have the following issue with my approx. 1 year old development machine (Windows 7, 64 bit): When doing network intensive operations, like e.g. executing some SQL script on a remote SQL server to select or update 1000 of records, the network card stops working. I.e. suddenly, No network connection is present anymore. No internet, no local connection, simply nothing. The only resolution so far I found is to disable my network card and then simply enable it back, like in the following screenshots: 1.) Click "Deactivate" 2.) Click "Activate" (German screenshots only, sorry) Now this is an acceptable solution to work around this issue, but I would love to have this fixed, since it suddenly stops me from working when I'm connected remotely via VPN/RDP on my machine (Win7 64bit). So my question is: Could you imagine a possible cause for this issue and give some hints how to hunt/resolve it? I could imagine that this is a driver issue, a hardware issue or even some kind of background software issue like a software firewall or a virus scanner.

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• Is Cloud Print to blame for my inability to print?

  - by VarLogRant

  I have just moved to the Chrome beta (first 9.something and currently 10.0.648.127) on my Windows 7 64-bit machine, and my good web browsers (Firefox Beta and Chrome) can no longer print, and neither can Komodo Edit. The problem seems to have started when I tried to enable Google Cloud Print. Frustratingly, I can still print from IE 9 RC, and also from other machines in the office, which means the problem is entirely on this Windows machine. When I try to print from Chrome, first time I get the printer dialog, and once I click print, it waits, then pops up "Something went wrong", and each time after, it pops up with "No Printer Found". Under Firefox, I get "An unknown error occurred while printing", as does Komodo. I have printed from these applications before, and have even printed from Google Cloud Print. Once. But then it stopped. I really don't know where to go next in debugging this thing, and the Google results I see tend to be from 2007. I'm not ready for the paperless office yet, so please help!

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• Android webbrowser returns code 500 for webpage on Nginx webserver

  - by Paxxil

  Hey! I've come to a very weird behavior of a web browser on android mobile phone (I've tried HTC Wildfire and HTC Desire phones). I have a web server with Nginx v0.8.54. When i try to open a web page on the phone it shows me error: The requested item could not be loaded! (Status code: 500) BUT it only happens when I am requesting page through Mobile network. On Wifi it works just fine .... but there is more .... if I stop Nginx and start Apache web server it works just fine on both Mobile network and wifi. I've also tried other mobile network and it is the same behavior. Some server stats: Firewall is OFF Selinux is OFF the web page (using Nginx web server) opens normally on any other browser (IE, FF, Opera, Chrome, Safari) on the laptop or PC Nothing in nginx error.log This is the only entry in access.log when the page is requested: xxx.xxx.xxx.xxx - - [17/Mar/2011:11:19:49 -0500] 200 "GET / HTTP/1.1" 27405 "-" "Mozilla/5.0 (Linux; U; Android 2.2; en-gb; Desire_A8181 Build/FRF91) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1" "-" index.html has only "Hello World" string in it. There is no fishy javascript or anything else. .... but there is even more.... if i open the same page on another server, with the same Nginx build, with the same server and web server configuration.... it opens just fine. if anyone has any idea on what may be going on, i would really appreciate it if you let me know. Thanks! EDIT: i forgot to mention that page opens OK on Iphone and Nokia

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• Migrating to Windows Server 2008 R2 Domain Controllers - a few Questions/Issues

  - by Chris

  Ok so here's our setup: We have 2 Windows 2003 Domain Controllers. I am trying to replace them with Windows 2008 R2. The 2003 servers are named DC01 and DC02. The 2008 R2 servers are DC1 and DC2. I prepared the Windows Server 2003 Forest Schema for a Domain Controller that runs Windows Server 2008 or Windows Server 2008 R2. Then with both of the new servers up as member servers I ran dcpromo on DC1 using the advanced option and added it successfully to my existing domain. It's roles are GC, DNS and Active Directory Domain Services. I transferred The PDC Emulator, RID Pool Manager, and Infrastructure Master roles to DC1. The Schema Master and Domain Naming master are still on DC01. The first issue that I'm encountering is when I dcpromo the DC2 and select "Replicate data over the network from and existing domain controller" I select that I want to replicate from DC1 and I get the following error: Failed to identify the requested replica partner (dc1.xxx.org) as a valid domain controller with a machine account for (DC2$). This is likely due to either the machine account not being replicated to this domain controller because of replication latency or the domain controller not advertising the Active Directory Domain Services. Please consider retrying the operation with \dc01.xxx.org as the replica partner. "The server is unwilling to process the request. Is this because the Schema Master and Domain Naming Master roles are still on the old DC01? And if so, if I transfer Schema Master and Domain Naming Master roles to DC1 what is the risk or breaking my AD? I'm a little paranoid because this process HAS to be transparent. ANY down time or interruption will result in me getting a verbal ass kicking from my I.T. Director. Both of the new servers DNS point the the old DNS servers (DC01 and DC02) not themselves by the way.

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• Setting Up My Home Network

  - by Skizz

  I currently have five PCs at home, three running WinXP and two running Ubuntu. They are set up like this: ISP ----- Modem ---- Switch ---- Ubuntu1 -- B&W Printer | |--WinXP1 | |--WinXP2 Wireless |--Colour Printer | |---------Ubuntu2 |---------WinXP3 (laptop) The Ubuntu1 machine is set up as a PDC using Samba and runs fetchmail, procmail, dovecot to get my e-mail and allow me to access the e-mail via imap so I can read the e-mail on any PC. I'd like to set up the network like this: ISP ----- Modem ---- Ubuntu1 ---- Switch ------WinXP1 | | |--WinXP2 B&W Printer Wireless |--Colour Printer | |---------Ubuntu2 |---------WinXP3 (laptop) My questions are: How to configure Ubuntu1 to act as a firewall. How to configure Ubuntu1 to provide a consistant user authentication across the network, at the moment Samba provides roaming profiles for the XP machines but the Ubuntu2 machine has it's own user lists. I'd like to have a single authentication for both XP machines and linux machines so that users added to the server list will propagate to all PCs (i.e. new users can log on using any PC without modifying any of the client PCs). How to configure a linux client (Ubuntu2 above) to access files on the server (Ubuntu1), some of which are in user specific folders, effectively sharing /home/{user} per user (read and write access) and stuff like /home/media/photos with read access for everyone and limited write access. How to configure the XP machines (if it is different from a the Samba method). How to set up e-mail filtering. I'd like to have a whitelist/blacklist system for incoming e-mails for some of the e-mail accounts (mainly, my kids' accounts) with filtered e-mails being put into quaranteen until a sysadmin either adds the sender to a blacklist or whitelist. OK, that's a lot of stuff. For now, I don't want config files*, rather, what services / applications to use and how they interact. For example, LDAP could be used for authentication but what else would be useful to make the administration of the LDAP easier. Once I have a general idea for the overall configuration, I can ask other questions about the specifics. Skizz I have looked around for information, but most answers are usually in the form of abstract config files and lists of packages to install.

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• Change the Powershell $profile directory

  - by Swoogan

  I would like to know how to change my the location my $profile variable points to. PS H:\> $profile H:\WindowsPowerShell\Microsoft.PowerShell_profile.ps1 H:\ is a network share, so when I create my profile file, and load powershell I get the following: Security Warning Run only scripts that you trust. While scripts from the Internet can be useful, this script can potentially harm your computer. Do you want to run H:\WindowsPowerShell\Microsoft.PowerShell_profile.ps1? [D] Do not run [R] Run once [S] Suspend [?] Help (default is "D"): According to Microsoft, the location of the $profile is determined by the %USERPROFILE% environment variable. This is not true: PS H:\> $env:userprofile C:\Users\username For example, I have an XP machine working how I want: PS H:\> $profile C:\Documents and Settings\username\My Documents\WindowsPowerShell\Microsoft.PowerShell_profile.ps1 PS H:\> $env:userprofile C:\Documents and Settings\username PS H:\> $env:homedrive H: PS H:\> $env:homepath \ Here's the same output from the Vista machine where the $profile points to the wrong place: PS H:\> $profile H:\WindowsPowerShell\Microsoft.PowerShell_profile.ps1 PS H:\> $env:userprofile C:\Users\username PS H:\> $env:homedrive H: PS H:\> $env:homepath \ Since $profile isn't actually determined by %USERPROFILE% how do I change it? Clearly anything that involves changing the homedrive or homepath is not the solution I'm looking for.

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• Restoring Windows 2008 Server X86 and X64

  - by rihatum

  Restoring Windows 2008 Server (Domain Controller) We are using Backup Exec System Recovery 2010 to Image our DC. Now this software has a feature to convert the backup into a vmware or hyper-v VM I have also used disk2vhd to convert one of our dc's to a vhd and when I connected it into Hyper-V, it booted fine, I can login - BUT :-) As soon as I login, I get the activation error, that change product key, this product key isn't good for this machine etc. Question is : When in a real recovery situation, what would be the procedure to restore it either virtual or onto a physical box but be able to login and change product key etc ? In this scenario its just locked down and I cant' do anything, if this is the case, how would I replicate my production environment via these tools ? Any Ideas ? Will be grateful for some real world examples here. Same thing happens with our exchange backup / test restore either physical or virtual, can login but nothing else. Now we don't have the keys as they are OEM keys and just wondering what will happen in a real scenario, would we be purchasing another KEY or using the OEM key on our new server ? This is a test environment I am trying to create by restoring our backups either into hyper-v or physical test machines. Also, If I build up a machine (Server 2008) in a VM (Hyper-V), How can I restore just the system state backup of my DC into it ? will that give me the activation error too ? even though I would use the TRIAL ISOs provided by Microsoft ? Kind regards

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• How to connect a USB GDI printer to Linux over a D-Link print server?

  - by jpe

  The setup is the following: +------------+ +-----------------+ +---------+ | HP LJ P1005|--USB--| D-Link DPR-1020 |---LAN---| PC Linux| +------------+ +-----------------+ + +---------+ | +------------+ +--| PC Windows | +------------+ HP LJ P1005 is one of those GDI printers that requires the printer driver to do most of the work for it and therefore is a bit "special". D-Link DPR-1020 is a print server with an Ethernet and an USB port that actually supports printing to challenged (read GDI) printers using a utility called PS-Link. What the utility does is basically mirror a USB port over the network to the print server so that the printer driver and the printer both are happy to talk to each other. The PC-s are notebooks that come and go, i.e. are not there all the time. Is there an equivalent of the D-Link PS-Link utility for Linux that could mirror a USB port over the network for a Linux host? And can the solution be used with D-Link DPR-1020? If not then I basically wasted the money buying the print server because the goal was to share a small printer among a couple of users with diverse operating systems in an office. The print server specs say that it supports Linux and LJ P1005, but the Catch 22 appears to be the solution used for GDI printers... It should be noted that it is possible to print from Linux to LJ P1005 directly over USB. This far sharing involved reconnecting the USB cable to appropriate computer to print. Now one of the desks is separated, so the cable does not work. Searching the net did not yield anything useful. Please do not suggest solutions involving a Windows machine (either virtual or not), my question is whether a solution only involving a Linux machine exists.

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• Python not Working in Vim

  - by jdg

  I have a new install of VIM from the automatic windows installer: gvim73_46.exe I have Python 2.7 (32 bit) installed. If I open gvim, and type: :set python? I get E518: Unknown option. If I try typing: :python 'hello' Vim crashes. What could be wrong? Here are the contents of :version in case they are helpful, although python is installed, and it is using Python 2.7. I also checked, and C:\Windows\System32\python27.dll is where it should be... I am really lost here. Does anyone have any ideas as to what is going wrong? VIM - Vi IMproved 7.3 (2010 Aug 15, compiled Oct 27 2010 17:59:02) MS-Windows 32-bit GUI version with OLE support Included patches: 1-46 Compiled by Bram@KIBAALE Big version with GUI. Features included (+) or not (-): +arabic +autocmd +balloon_eval +browse ++builtin_terms +byte_offset +cindent +clientserver +clipboard +cmdline_compl +cmdline_hist +cmdline_info +comments +conceal +cryptv +cscope +cursorbind +cursorshape +dialog_con_gui +diff +digraphs -dnd -ebcdic +emacs_tags +eval +ex_extra +extra_search +farsi +file_in_path +find_in_path +float +folding -footer +gettext/dyn -hangul_input +iconv/dyn +insert_expand +jumplist +keymap +langmap +libcall +linebreak +lispindent +listcmds +localmap -lua +menu +mksession +modify_fname +mouse +mouseshape +multi_byte_ime/dyn +multi_lang -mzscheme +netbeans_intg +ole -osfiletype +path_extra +perl/dyn +persistent_undo -postscript +printer -profile +python/dyn +python3/dyn +quickfix +reltime +rightleft +ruby/dyn +scrollbind +signs +smartindent -sniff +startuptime +statusline -sun_workshop +syntax +tag_binary +tag_old_static -tag_any_white +tcl/dyn -tgetent -termresponse +textobjects +title +toolbar +user_commands +vertsplit +virtualedit +visual +visualextra +viminfo +vreplace +wildignore +wildmenu +windows +writebackup -xfontset -xim -xterm_save +xpm_w32 system vimrc file: "$VIM\vimrc" user vimrc file: "$HOME_vimrc" 2nd user vimrc file: "$VIM_vimrc" user exrc file: "$HOME_exrc" 2nd user exrc file: "$VIM_exrc" system gvimrc file: "$VIM\gvimrc" user gvimrc file: "$HOME_gvimrc" 2nd user gvimrc file: "$VIM_gvimrc" system menu file: "$VIMRUNTIME\menu.vim" Compilation: cl -c /W3 /nologo -I. -Iproto -DHAVE_PATHDEF -DWIN32 -DFEAT_CSCOPE -DFEAT_NETBEANS_INTG -DFEAT_XPM_W32 -DWINVER=0x0400 -D_WIN32_WINNT=0x0400 /Fo.\ObjGOLYHTR/ /Ox /GL -DNDEBUG /Zl /MT -DFEAT_OLE -DFEAT_MBYTE_IME -DDYNAMIC_IME -DFEAT_GUI_W32 -DDYNAMIC_ICONV -DDYNAMIC_GETTEXT -DFEAT_TCL -DDYNAMIC_TCL -DDYNAMIC_TCL_DLL=\"tcl83.dll\" -DDYNAMIC_TCL_VER=\"8.3\" -DFEAT_PYTHON -DDYNAMIC_PYTHON -DDYNAMIC_PYTHON_DLL=\"python27.dll\" -DFEAT_PYTHON3 -DDYNAMIC_PYTHON3 -DDYNAMIC_PYTHON3_DLL=\"python31.dll\" -DFEAT_PERL -DDYNAMIC_PERL -DDYNAMIC_PERL_DLL=\"perl512.dll\" -DFEAT_RUBY -DDYNAMIC_RUBY -DDYNAMIC_RUBY_VER=191 -DDYNAMIC_RUBY_DLL=\"msvcrt-ruby191.dll\" -DFEAT_BIG /Fd.\ObjGOLYHTR/ /Zi Linking: link /RELEASE /nologo /subsystem:windows /LTCG:STATUS oldnames.lib kernel32.lib advapi32.lib shell32.lib gdi32.lib comdlg32.lib ole32.lib uuid.lib /machine:i386 /nodefaultlib gdi32.lib version.lib winspool.lib comctl32.lib advapi32.lib shell32.lib /machine:i386 /nodefaultlib libcmt.lib oleaut32.lib user32.lib /nodefaultlib:python27.lib /nodefaultlib:python31.lib e:\tcl\lib\tclstub83.lib WSock32.lib e:\xpm\lib\libXpm.lib /PDB:gvim.pdb -debug

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• How to configure CISCO switch 2960 for port-based address allocation on a single port only?

  - by Jack

  CISCO 2960 allows you to configure so-called Port-Based address allocation. It makes the switch to associate IP address it is giving out via DHCP with port-identifier, which is random, switch created identifier. In practice it means that any machine connected to such configured port will always get the same IP address, regardless of what that machine's MAC address is. I want to have that feature configured on --some ports-- only. But no matter what commands I try it seems that this can only be done for all ports, all for none. Even though CISCO manual seems to indicate there's both global and per-port command to enable that. Here are relevant commands from CISCO manual: configure terminal ip dhcp use subscriber-id client-id (this configures the DHCP server to globally use the subscriber ID as the client ID on all incoming DHCP messages) interface FastEthernet0/1 ip dhcp server use subscriber-id client-id (Optional: Configures the DHCP server to use the subscriber ID as the client ID on all incoming DHCP messages on the interface) but it appears if I configure only per-interface than there's no effect at all, if I configure globally and per interface - CISCo behaves as if all ports were configured to use that feature. Any ideas?

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• Loading a big database dump into PostgreSQL using cat

  - by RussH

  I have a pair of very large (~17 GB) database dumps that I want to load into postgresql 9.3. After installing the database packages, learning more or less how to use them, and fiddling around a little on various StackExchange pages (particularly this question), it looks like a proper command for me to use is something like: cat mydb.pgdump | psql mydb because of the format the dump is in. My machine has 16 GB of RAM, and I'm not familiar with the cat command but I do know that my RAM is 99% exhausted and the database is taking a while to load. My machine isn't non-responsive to the point of hanging; I can run other commands in other terminal windows and have them execute at a reasonable clip, but I am wondering if cat is the best way to pipe in the file or if something else is more efficient? My concern is that maybe cat could be using up all the RAM so the database doesn't have much to work with, throttling its performance. But I'm new to thinking about RAM issues like this and don't know if I'm worrying about nothing. Now that I think about it, this seems to be more of a question about cat and its memory usage than anything else. If there is a more appropriate forum for this question please let me know. Thanks!

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• IPSec tunnelling with ISA Server 2000...

  - by Izhido

  Believe it or not, our corporate network still uses ISA Server 2000 (in a Windows Server 2003 machine) to enable / control Internet access to / from it. I was asked recently to configure that ISA Server to create a site-to-site VPN for a new branch in a office about 25 km. away from it. The idea is basically to enable not only computers, but also Palm devices (WiFi-enabled, of course), to be able to see other computers in both sites. I was also told that a simple VPN-enabled wireless AP/router (in this case, a Cisco WRV210 unit) should be enough to establish communications with the main office. To be fair, the router looks easy to configure; it was confusing at first, but further understanding of how site-to-site VPNs work cleared all doubts about it. Now I need to make modifications to our ISA Server in order to recognize the newly installed & configured "remote" VPN site. Thing is, either my Googling skills are pathethically horrible, or there doesn't seem to be much (or any, at all) information about how to configure an ISA Server 2000 for this purpose. Lots of stuff on 2004, of course; also, I think I saw something for 2006. But nothing I could find about 2000. Reading about 2004, it seems that the only way I can do site-on-site with a Cisco router (read: a non-ISA-Server machine) is through something they call a "IPSec tunnel". Fair enough. However, I can't figure for the life of me how could I even start to find, leave alone configure, such a thing. Do you, people, happen to know how to do IPSec tunelling on a ISA Server 2000, so I can connect to a Cisco WRV210 VPN-enabled router, and build a site-to-site VPN for both networks? Or is this not possible at all? (Meaning I should change anything in this configuration to make it work...)

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• Installing Numpy locally

  - by Néstor

  I posted this question originally on StackOverflow, but a user suggested I moved it here so here I go! I have an account in a remote computer without root permissions and I needed to install a local version of Python (the remote computer has a version of Python that is incompatible with some codes I have), Numpy and Scipy there. I've been trying to install numpy locally since yesterday, with no success. I successfully installed a local version of Python (2.7.3) in /home/myusername/.local/, so I access to this version of Python by doing /home/myusername/.local/bin/python. I tried two ways of installing Numpy: I downloaded the lastest stable version of Numpy from the official webpage, unpacked it, got into the unpacked folder and did: /home/myusername/.local/bin/python setup.py install --prefix=/home/myusername/.local. However, I get the following error, which is followed by a series of other errors (deriving from this one): gcc -pthread -shared build/temp.linux-x86_64-2.7/numpy/core/blasdot/_dotblas.o -L/usr/local/lib -Lbuild/temp.linux-x86_64-2.7 -lptf77blas -lptcblas -latlas -o build/lib.linux-x86_64-2.7/numpy/core/_dotblas.so /usr/bin/ld: /usr/local/lib/libptcblas.a(cblas_dptgemm.o): relocation R_X86_64_32 against `a local symbol' can not be used when making a shared object; recompile with -fPIC Not really knowing what this meant (except that the error apparently has to do with the LAPACK library), I just did the same command as above, but now putting LDFLAGS='-fPIC', as suggested by the error i.e., I did LDFLAGS="-fPIC" /home/myusername/.local/bin/python setup.py install --prefix=/home/myusername/.local. However, I got the same error (except that the prefix -fPIC was addeded after the gcc command above). I tried installing it using pip, i.e., doing /home/myusername/.local/bin/pip install numpy /after successfully instaling pip in my local path). However, I get the exact same error. I searched on the web, but none of the errors seemed to be similar to mine. My first guess is that this has to do with some piece of code that needs root permissions to be executed, or maybe with some problem with the version of the LAPACK libraries or with gcc (gcc version 4.1.2 is installed on the remote computer). Help, anyone?

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• Shut Out of XP - No Admin Password or CDR

  - by ashes999

  I inherited an old WinXP/Linux dual-boot machine from the stoneage. Because it has Linux, the regular boot process is replaced with the Fedora boot loader; I cannot, therefore, press F8 strategically to tell my PC to boot from CD. Even if I could, it's a moot point; the CDR doesn't seem to recognize any CDs. To make things worse, there's no option to network boot. The original user is probably long gone; I don't know the password for any of the Administrator group users. I can login using my corp account, but that's unprivileged on this machine. Since I'm not an admin, I can't do crazy things, like looking at boot.ini. Or deleting files. I only have 500MB free on my C drive. I'm pretty sure I can't boot from a USB, since I didn't see any settings for this in my BIOS. How can I get admin access for my user? Edit: Things I've tried: Boot from CD (CD not recognized) Launch CD from XP (CD not recognized) Install Daemon Tools Lite so I can install from an ISO -- don't have admin privileges XP password recovery tool -- requires admin privileges Adding an admin user -- no access to Control Panel Users since I'm not an admin Logging in as both the admin users on the system (trying some standard passwords) Using Fedora to chntpw (the Fedora version installed is ancient -- 2.7)

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• BizTalk/MQ - DCOM was unable to communicate with the computer xxx using any of the configured protocols

  - by NealWalters

  I've read the other questions on this same error, but don't see a close match to this scenario. We got 18 of these last night between 12:17:13 and 12:39:37 on Win 2008/R2. It caused us to lose connectivity between BizTalk 2010 and WebSphere MQ machine. All our BizTalk machines (Prod, QA, Train, etc...) got the messages at the roughly same time and in the same quantity (about 18 of them). Computer xxx is the WebSphere MQ machine. What could cause this in the middle of the night? The servers are configured and running in Prod for a couple of years. There is no Win Firewall running, and servers are practically on the same rack. Could a run-away or 100% utilized CPU on the WebSphere MQ cause this issue? What else could cause it? BizTalk did NOT auto-recover from this situation. The above was followed by thousands of this message in the BizTalk event logs: The adapter "MQSeries" raised an error message. Details "Error encountered on Queue.Get Queue name = MyQManager/MyQueueName Reason code = 2354.". We restated BizTalk host instances, and it did not come back right away. It seemed we had to stop host instances for about two minutes, then start them.

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• SQL SERVER 2005 with Windows 7 Problems

  - by azamsharp

  First of all I restored the database from other server and now all the stored procedures are named as [azamsharp].[usp_getlatestposts]. I think [azamsharp] is prefixed since it was the user on the original server. Now, on my local machine this does not run. I don't want the [azamsharp] prefix with all the stored procedures. Also, when I right click on the Sproc I cannot even see the properties option. I am running the SQL SERVER 2005 on Windows 7. UPDATE: The weird thing is that if I access the production database from my machine I can see the properties option. So, there is really something wrong with Windows 7 security. UPDATE 2: When I ran the orphan users stored procedure it showed two users "azamsharp" and "dbo1". I fixed the "azamsharp" user but "dbo1" is not getting fixed. When I run the following script: exec sp_change_users_login 'update_one', 'dbo1', 'dbo1' I get the following error: Msg 15291, Level 16, State 1, Procedure sp_change_users_login, Line 131 Terminating this procedure. The Login name 'dbo1' is absent or invalid.

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• Bad Intel DQ965GF motherboard? Fails memtest, but memory is good.

  - by Boden

  I've got a machine with a DQ965GF motherboard. Two days ago it started locking up hard. Ran memtest 3.3, 1.7, and TestMem 4. TestMem just freezes, memtest failed on moving 8 bit inversions. Letting memtest run eventually causes the system to restart. I pulled memory sticks one by one, and then replaced the memory with a couple of known good sticks. No luck. I switched power supplies, didn't help. Swapped video cards just to be safe. No help. When I start the machine I get a single beep before it POSTs. According to the manual, a single beep means: 1 beep - Refresh Error (with nothing on the screen and it is not a video problem) I'm assuming that the motherboard has failed since it's obviously not a RAM or power issue. Do you agree? NOTE: I also tried resetting BIOS defaults, and even flashed the BIOS to the latest version. I also ran the Mersenne Prime Test and the CPU seems to click along just fine. (Tried logging in to superuser with openid but it's not working for me today. Hope this gets through)

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• What kinds of protections against viruses does Linux provide out of the box for the average user?

  - by ChocoDeveloper

  I know others have asked this, but I have other questions related to this. In particular, I'm concerned about the damage that the virus can do the user itself (his files), not the OS in general nor other users of the same machine. This question came to my mind because of that ransomware virus that is encrypting machines all over the world, and then asking the user to send a payment in Bitcoin if he wants to recover his files. I have already received and opened the email that is supposed to contain the virus, so I guess I didn't do that bad because nothing happened. But would I have survived if I opened the attachment and it was aimed at Linux users? I guess not. One of the advantages is that files are not executable by default right after downloading them. Is that just a bad default in Windows and could be fixed with a proper configuration? As a Linux user, I thought my machine was pretty secure by default, and I was even told that I shouldn't bother installing an antivirus. But I have read some people saying that the most important (or only?) difference is that Linux is just less popular, so almost no one writes viruses for it. Is that right? What else can I do to be safe from this kind of ransomware virus? Not automatically executing random files from unknown sources seems to be more than enough, but is it? I can't think of many other things a user can do to protect his own files (not the OS, not other users), because he has full permissions on them.

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• Is TortoiseSVN really this buggy?

  - by John Isaacks

  I have been using tortoise svn for a couple weeks now. I get errors very often. Almost everything I do creates an error. this is with repositories on the internet, locally on my machine or a machine on the network. So I started to keep track. Some examples are below. 12/31/2010 Can't move 'C:\Users\jisaacks\Desktop\my branch test.svn\tmp\entries' to 'C:\Users\jisaacks\Desktop\my branch test.svn\entries': The file or directory is corrupted and unreadable. 01/04/2011 Commit failed (details follow): Server sent unexpected return value (405 Method Not Allowed) in response to MKCOL request for '/svn/kranichs-svn/!svn/wrk/b316f15e-0869-4644-9c53-87aa0103506b/branches' 01/06/2011 Can't move 'C:\Users\jisaacks\Desktop\DVD Catalog\vendors.svn\tmp\entries' to 'C:\Users\jisaacks\Desktop\DVD Catalog\vendors.svn\entries': The file or directory is corrupted and unreadable. 01/06/2011 Can't move 'C:\Users\jisaacks\Desktop\DVD Catalog\cake\tests\test_app\views\layouts.svn\tmp\entries' to 'C:\Users\jisaacks\Desktop\DVD Catalog\cake\tests\test_app\views\layouts.svn\entries': The file or directory is corrupted and unreadable. 01/06/2011 Commit failed (details follow): attempt to write a readonly database attempt to write a readonly database That last one about the read only database happens every time I commit. Say if I am working on the head revision (7) in a working copy. I make a change and commit it. It gives me this error. But if I look at the log it tells me that there is now a revision 8 (the commit I just made) but I am still on revision 7. So I need to run update to be on the current revision that I just commited. I hope I explained that clearly. Anyways with all these errors I wonder.. Is TSVN just this unstable, does everyone have these issues. Or is it just me? If just me, what could I be doing wrong?

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• WS2008 subst in Logon script does not "stick"

  - by Frans

  I have a terminal server environment exclusively with Windows Server 2008. My problem is that I need to "map" a drive letter to each users Temp folder. This is due to a legacy app that requries a separate Temp folder for each user but which does not understand %temp%. So, just add "subst t: %temp%" to the logon script, right? The problem is that, even though the command runs, the subst doesn't "stick" and the user doesn't get a T: drive. Here is what I have tried; The simplest version: 'Mapping a temp drive Set WinShell = WScript.CreateObject("WScript.Shell") WinShell.Run "subst T: %temp%", 2, True That didn't work, so tried this for more debug information: 'Mapping a temp drive Set WinShell = WScript.CreateObject("WScript.Shell") Set procEnv = WinShell.Environment("Process") wscript.echo(procEnv("TEMP")) tempDir = procEnv("TEMP") WinShell.Run "subst T: " & tempDir, 3, True This shows me the correct temp path when the user logs in - but still no T: Drive. Decided to resort to brute force and put this in my login script: 'Mapping a temp drive Set WinShell = WScript.CreateObject("WScript.Shell") WinShell.Run "\\domain\sysvol\esl.hosted\scripts\tempdir.cmd", 3, True where \domain\sysvol\esl.hosted\scripts\tempdir.cmd has this content: echo on subst t: %temp% pause When I log in with the above then the command window opens up and I can see the subst command being executed correctly, with the correct path. But still no T: drive. I have tried running all of the above scripts outside of a login script and they always work perfectly - this problem only occurs when doing it from inside a login script. I found a passing reference on an MSFN forum about a similar problem when the user is already logged on to another machine - but I have this problem even without being logged on to another machine. Any suggestion on how to overcome this will be much appreciated.

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• free up not used space on a qcow2-image-file on kvm/qemu

  - by bmaeser

  we are using kvm/qemu with qcow2-images for our virtual machines. qcow2 has this nice feature where the image file only allocates the actually needed space by the virtual-machine. but how do i shrink back the image file, if the virtual machine's allocated space gets smaller? example: 1.) i create a new image with qcow2 format, size 100GB 2.) i use this image to install ubuntu. installation needs about 10 gb, the image-file grows up to about 10GB. nothing unexpected so far. 3.) i fill up the image with about 40 GB of additional data. the image-file grows up to 50GB. i am ok with that :-) 4.) this is where it gets strange: i delete all of the 40GB data on the image, but the image-size still eats up 50GB. question: how do i free up that 40GB of data and shrink the image to the only needed 10 GB? thanks in advance, berni

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• Setting up MySQL Linux slave with a Windows master

  - by philwilks

  I'm running a MySQL 5.0 database server on Windows Server 2008. The total size of the database is about 1Gb. I make daily backups, but I'd like to step up to having a slave server for extra protection. My thinking was that I wouldn't need the expense of a Windows machine to do this, and a Linux "cloud server" from RackSpace would do the job well for quite a low cost. However I have little experience with Linux, so I have a few questions... Does this sound like a good idea? Is there anything wrong with linking Windows and Linux MySQL servers? Does Linux have the equivalent of Remote Desktop Connection? If so can I use this from a Windows machine? Would a particular Linux distro be well suited to this task? RackSpace offer ArchLinux, CentOS, Debian, Fedora and Ubuntu. My immediate thinking is to go with Ubuntu as I've heard it's more friendly for people coming from a Windows background. Any comments you have would be very appreciated! Phil

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