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• Web-based SVG or JavaScript Org Chart or Tree Graph Plotting Visualization API

  - by asoltys

  Hi, I'm looking to build an interactive web-based org chart for a large organization. I somewhat like the interface at ancestry.com where you can hover over people and pan/zoom around and click on different nodes to make them the root. Ideally, I'd like it if people could belong to multiple organizational entities like committees, working groups, etc. In other words the API should support graphs in general, not just trees. I'd like to be able to visually explode each organizational substructure into substituents by clicking on it, with a nice animation of the employees ballooning or spilling out so you can really interactively drill down through the organization. I found http://code.google.com/apis/visualization/documentation/gallery/orgchart.html but it looks a bit rudimentary. I know there are desktop tools like OrgPlus and Visio that can build static charts but I'm really looking for a free, web-based API with open standards-based output like SVG or HTML5 Canvas elements rather than Flash or some proprietary output. Something I can embed into a custom web application and style myself. Something interactive.

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• Disable the user of Internet explorer through policies when called from HTML help

  - by Stephane

  Hello, I have a locked down environment where users are prohibited from doing, well, basically anything but run the specific programs we specify. We just switched a program from using the venerable "WinHELP" help format to HTML help (CHM) but that seem to have an unwanted and rather dangerous side effect: when a user click on a hyperlink inside the HTML help, a new internet explorer window is opened and the user is free to browse and do terrible things to my server (well, not that much, but still...) I have checked the session in this case and the IE window is actually hosted within the help engine: there is no iexplore.exe process running in the user session (and it cannot: it's explicitly prohibited). We have disable all help right now until we find a solution. I'm working with the help team to have all external URLs removed from the help file but that is going to be a long and error-prone task. Meanwhile, I've checked all the group policies option but I have to say that I was unable to find anything that would prevent a standalone IE window hosted in a random process from running. I don't want to disable WinHTTP or the IE rendering engine or anything of the sort. But I need to prevent all users members of a specific AD user group from ever having an IE window displayed to them. The servers are running Windows 2003 and Citrix metaframe 4.5. Thanks in advance

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• How to extend a Linux PV partition online after virtual disk growth

  - by Yves Martin

  VMware allows to extend the size of a virtual disk online - when the VM is running. The next expected steps for Linux system are: extend the partition: delete and create a larger one with fdisk extend the PV size with pvresize use free extents for lvresize operations and then resize2fs for file system But I am stuck on the first step: fdisk and sfdisk still display the old size for the disk. My disk is a SCSI virtual disk connected thanks to the virtual LSI Logic controller. How to refresh the virtual disk size and partition table information available in Linux kernel without reboot ? As far as I know all that steps are possible for a running Windows, without reboot and even without any user actions thanks to VMWare tools. On Linux, I expects to do all steps online too and I already know steps 2, 3 and 4 work online. But the first one - change partition size declared in the partition table (still) seems to require a reboot. Update: My system is a Debian Lenny with kernel 2.6.26 and the disk I have extended is the main disk with a large PV containing the "root" LV for "/".

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• Cisco ASA 5510 Time of Day Based Policing

  - by minamhere

  I have a Cisco ASA 5510 setup at a boarding school. I determined that many (most?) of the students were downloading files, watching movies, etc, during the day and this was causing the academic side of our network to suffer. The students should not even be in their rooms during the day, so I configured the ASA to police their network segment and limit their outbound bandwidth. This resolved all of our academic issues, and everyone was happy. Except the resident students. I have been asked to change/remove the policing policy at the end of the day, to allow the residents access to the unused bandwidth at night. There's no reason to let bandwidth sit unused at night just because it would be abused during the day. Is there a way to setup Time of Day based Policies on the ASA? Ideally I'd like to be able to open up the network at night and all day during weekends. If I can't set Time based policies, is is possible to schedule the ASA to load a set of commands at a specific time? I suppose I could just setup a scheduled task on one of our servers to log in and make the changes with a simple script, but this seems like a hack, and I'm hoping there is a better or more standard way to accomplish this. Thanks. Edit: If there is a totally different solution that would accomplish a similar goal, I'd be interested in that as well. Free/Cheap would be ideal, but if a separate internet connection is my only other option, it might be worth fighting for money for hardware or software to do this better or more efficiently.

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• how do you add an A record for a root domain

  - by nbv4

  this seems really simple, but I can't figure it out. I'm using xname.org since it's free and I own a bunch of domains spread over a few different registrars. The setup I desire is very simple: one A record that points the bare domain name to my server, plus a wildcard CNAME record pointing all subdomains to the same server. So if the user goes to domain.com it will point them to 285.24.435.75, if they go to www.domain, blah.domain.com, or any other sub domain, they'll get sent to 285.24.435.75. All the examples I read on the internet about setting up A records all have the A record set to a subdomain such as www. WWW is deprecated so I want to have noting to do with it. Currently my xname.org zone looks like this: $TTL 86400 ; Default TTL domain.com. IN SOA ns0.xname.org. nbvfour.gmail.com. ( 2010052503 ; serial 10800 ; Refresh period 3600 ; Retry interval 604800 ; Expire time 10800 ; Negative caching TTL ) $ORIGIN domain.com. IN NS ns2.xname.org. IN NS ns0.xname.org. IN NS ns1.xname.org. @ IN A 65.49.73.148 * IN CNAME domain.com The '@' symbol is something that the godaddy domain interface uses to mean "this root domain', but that may have been specefic to that interface and has no meaning here. Before I had a 'www' entry in the A rcords and it worked in the sense that I could ping 'www.domain.com' and it returned a response, but pinging the root domain 'domain.com' returned "no host found".

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• How to troubleshoot when one has no idea where to start?

  - by Chris Walton

  I am looking for hints, tips and answers on how to get started on troubleshooting when: The problem is intermittent The problem could lie literally anywhere - operating system; free source software; my own software developments; purchased software; crumbs on the keyboard; the specific combination of software I am currently running; Maxwell's demon; the little blue men actually running the machine have gone on strike; etc. I have expertise only in a few of the areas that are potential candidates for the cause of the problem. The specific problem I am having is detailed below as an example, but I am not seeking answers to my current problem, but rather where and how to start on tackling such problems. I am currently encountering a problem with my new machine. On a few occasions the machine has just frozen; not accepting keystrokes, mouseclicks, or anything except the power on/off switch. Invariably I have been merely browsing the web; I have had a few (<= 6 other applications) running. None of these applications are major; and represent a mix of commercial programs and open source programs, typically migrated from Unix of some variety. My machine is a Windows 7 I7 quad core laptop.

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• Lenovo S10 Ideapad will not boot while original hard drive is installed, neither from hard drive or

  - by aki

  Hello, first time posting here so I'll try to be very clear. I have a Lenovo S10 Ideapad netbook which fails to boot to an OS. It shows the Lenovo splash screen and can get to the BIOS but it doesn't get to GRUB (was dual booting Ubuntu 9.10 and Win 7, was working fine for months, ie this isn't a new dual boot gone bad). After the splash screen it displays a flashing cursor in the upper left corner. Power cycled to no avail. Here is what I have done trying to narrow the problem down: The machine will boot to Ubuntu using an install/live USB drive, but only if ANOTHER hard drive is installed or NO hard drive is installed. The boot order always lists USB first. Also, there is a 2 gb RAM upgrade but I think that's fine; the Ubuntu USB drive boots fine with it, and "free" sees the whole 2gb of memory. So it seems like the hard drive is bad. I was able to put the bad drive in a different laptop and mount it to recover files. I'm ready to replace the bad hard drive, but I would like to know if this situation makes any sense. If the hard drive is bad, shouldn't I still be able to boot with the Ubuntu USB drive while the bad drive is installed? I would have expected the machine to boot into Ubuntu anyway even if with a bad drive, since the boot order lists USB first. But it seems that when the bad drive is installed, the machine ignores the USB drive and hangs with the flashing cursor. Thanks for any ideas! Sorry for the long post, I just want to put all the info I have up front! Basically I'm going to buy a new drive, but I am mostly curious if this is a typical or at least not unusual situation.

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• Website has become slower on a VPS, was much fast on a shared host. What's wrong?

  - by Arpit Tambi

  My shared host suspended my website stating system overload, so I moved my website to a VPS which has 4GB RAM. But for some reason the website has become very slow. This is the vmstat output - procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------ r b swpd free buff cache si so bi bo in cs us sy id wa st 1 0 0 3050500 0 0 0 0 0 1 0 0 0 0 100 0 0 Here's the Apache Benchmark output for a STATIC html page I ran on the server itself - Benchmarking www.ask-oracle.com (be patient)...apr_poll: The timeout specified has expired (70007) Total of 20 requests completed Update: Server Config: List item Centos 5.6 4 cores cpu 4 GB RAM LAMP stack with APC Wordpress Only one website It takes almost double time to load now, same website was much fast on shared hosting. I know I need to tweak some settings but have no clue where to start from? I have already tried to optimize apache, mysql etc. Update 2: CPU usage is low, see uptime output: 11:09:02 up 7 days, 21:26, 1 user, load average: 0.09, 0.11, 0.09 Update 3: When I load any webpage, browser shows "Waiting" for a long time and then page loads quickly. So I suspect server can accept only limited connections and holds extra connections in a waiting state. How to check this? Update 4: Following is the output on executing netperf TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to localhost.localdomain (127.0.0.1) port 0 AF_INET Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 10.00 9615.40 [root@ip-118-139-177-244 j3ngn5ri6r01t3]# Here are the Apache MPM settings from httpd.conf, do they look okay? <IfModule worker.c> StartServers 5 MaxClients 100 MinSpareThreads 50 MaxSpareThreads 250 ThreadsPerChild 125 MaxRequestsPerChild 10000 ServerLimit 100 </IfModule>

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• prevalent, recurring hardrive failure intel macbook from 2006/2007

  - by SimonSalman

  Hi, Long story: My MacBook's hard drive failed one year ago, just a month after its warranty ended or: a year and a month after I bought it. After about ten phone calls to Apple's service, they agreed to extend the warranty for another year, so that I got it replaced free of charge. In the mean time, I got to know that many MacBook users that experience/report hard drive failures. Every reported crash was preceded by a slowdown of system performance, an increased occurrence of the spinning beach ball wait courser, and frequent crashes of applications that used to run very robust until then. It happened (as far as I know) with MacBooks from 2006/2007. All these MacBooks additionally suffer from a recurring wearing down of their "top case". Many heavy users had to replace their HDDs three time since 2006/2007 resulting in an head crash, making it impossible to recover data (diagnosis of recovery specialists) in most but not all cases HDD was Seagate (doesn't necessarily have to be the cause, if majority of the MacBook charge contained Seagate drives) And right now (one year after my first disk crash), these symptoms are cumulating on my system, again ... Short version: prevalent hard drive failure on MacBook charge from 2006/2007 (i.e. 2.16 GHz Intel Core 2 Due) I am looking for any (preferable open source) tool for checking the hard drive condition, especially to detect the known "MacBook problem". So, that I can replace the disk on time. If any Mac user found a solution to prevent the repeated failure of heir hard drive, I would be very glad to get to known it. I really enjoy my old MacBook, but I hate to get interrupted every year by an HDD crash. BTW, the issue is already in discussion for a long time, but there seems to be no solution, so far. Thanks, Simon

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• OpenVPN and PPTP on XEN VPS

  - by amiv

  I have Debian based system (Ubuntu 11.10) on XEN VPS. I've installed OpenVPN and works great. I need to install PPTP too, so did it and clients can connect, but they have no internet on client side. If I connect to VPN over PPTP I can ping and access to only my VPS by its IP, but ony that. There's no "internet" on client side. It looks it's not DNS problems (I'm using 8.8.8.8) because I can't ping known IPs. I bet the solution is simple, but don't have any idea. Any guess? /etc/pptpd.conf option /etc/ppp/pptpd-options logwtmp localip 46.38.xx.xx remoteip 10.1.0.1-10 /etc/ppp/pptpd-options name pptpd refuse-pap refuse-chap refuse-mschap require-mschap-v2 require-mppe-128 ms-dns 8.8.8.8 ms-dns 8.8.4.4 proxyarp nodefaultroute lock nobsdcomp /etc/ppp/ip-up [...] ifconfig ppp0 mtu 1400 /etc/sysctl.conf [...] net.ipv4.ip_forward=1 Command which I run: iptables -t nat -A POSTROUTING -j SNAT --to-source 46.38.xx.xx (IP of my VPS) The client can connect, first one gets IP 10.1.0.1 and DNS from Google. I bet it's iptables problem, am I right? I'm iptables noob and I don't have idea what's wrong. And here's the ifconfig and route command before client connect via PPTP: root@vps3780:~# route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default xx.xx.tel.ru 0.0.0.0 UG 100 0 0 eth0 10.8.0.0 10.8.0.2 255.255.255.0 UG 0 0 0 tun0 10.8.0.2 * 255.255.255.255 UH 0 0 0 tun0 46.38.xx.0 * 255.255.255.0 U 0 0 0 eth0 root@vps3780:~# ifconfig eth0 Link encap:Ethernet HWaddr 00:16:3e:56:xx:xx inet addr:46.38.xx.xx Bcast:0.0.0.0 Mask:255.255.255.0 inet6 addr: fe80::216:xx:xx:dfb6/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:22671 errors:0 dropped:81 overruns:0 frame:0 TX packets:2266 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1813358 (1.8 MB) TX bytes:667626 (667.6 KB) Interrupt:24 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:100 errors:0 dropped:0 overruns:0 frame:0 TX packets:100 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:10778 (10.7 KB) TX bytes:10778 (10.7 KB) tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:10.8.0.1 P-t-P:10.8.0.2 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1 RX packets:602 errors:0 dropped:0 overruns:0 frame:0 TX packets:612 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:90850 (90.8 KB) TX bytes:418904 (418.9 KB) And here's the ifconfig and route command after client connect via PPTP: root@vps3780:~# route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default xx.xx.tel.ru 0.0.0.0 UG 100 0 0 eth0 10.1.0.1 * 255.255.255.255 UH 0 0 0 ppp0 10.8.0.0 10.8.0.2 255.255.255.0 UG 0 0 0 tun0 10.8.0.2 * 255.255.255.255 UH 0 0 0 tun0 46.38.xx.0 * 255.255.255.0 U 0 0 0 eth0 root@vps3780:~# ifconfig eth0 Link encap:Ethernet HWaddr 00:16:3e:56:xx:xx inet addr:46.38.xx.xx Bcast:0.0.0.0 Mask:255.255.255.0 inet6 addr: fe80::216:xx:xx:dfb6/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:22989 errors:0 dropped:82 overruns:0 frame:0 TX packets:2352 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1841310 (1.8 MB) TX bytes:678456 (678.4 KB) Interrupt:24 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:112 errors:0 dropped:0 overruns:0 frame:0 TX packets:112 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:12102 (12.1 KB) TX bytes:12102 (12.1 KB) ppp0 Link encap:Point-to-Point Protocol inet addr:46.38.xx.xx P-t-P:10.1.0.1 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1400 Metric:1 RX packets:66 errors:0 dropped:0 overruns:0 frame:0 TX packets:15 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:3 RX bytes:10028 (10.0 KB) TX bytes:660 (660.0 B) tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:10.8.0.1 P-t-P:10.8.0.2 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1 RX packets:602 errors:0 dropped:0 overruns:0 frame:0 TX packets:612 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:90850 (90.8 KB) TX bytes:418904 (418.9 KB) And ugly iptables --list output: root@vps3780:~# iptables --list Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED ACCEPT all -- 10.8.0.0/24 anywhere REJECT all -- anywhere anywhere reject-with icmp-port-unreachable ACCEPT all -- 10.1.0.0/24 anywhere ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED ACCEPT all -- 10.1.0.0/24 anywhere REJECT all -- anywhere anywhere reject-with icmp-port-unreachable ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED ACCEPT all -- 10.8.0.0/24 anywhere REJECT all -- anywhere anywhere reject-with icmp-port-unreachable And ugly iptables -t nat -L output: root@vps3780:~# iptables -t nat -L Chain PREROUTING (policy ACCEPT) target prot opt source destination Chain INPUT (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination Chain POSTROUTING (policy ACCEPT) target prot opt source destination SNAT all -- 10.8.0.0/24 anywhere to:46.38.xx.xx MASQUERADE all -- 10.1.0.0/24 anywhere SNAT all -- 10.1.0.0/24 anywhere to:46.38.xx.xx SNAT all -- 10.8.0.0/24 anywhere to:46.38.xx.xx SNAT all -- 10.1.0.0/24 anywhere to:46.38.xx.xx MASQUERADE all -- anywhere anywhere SNAT all -- anywhere anywhere to:46.38.xx.xx SNAT all -- 10.8.0.0/24 anywhere to:46.38.xx.xx MASQUERADE all -- anywhere anywhere MASQUERADE all -- 10.1.0.0/24 anywhere MASQUERADE all -- anywhere anywhere MASQUERADE all -- 10.1.0.0/24 anywhere As I said - OpenVPN works very good. 10.8.0.0/24 for OpenVPN (on tun0). PPTP won't work. 10.1.0.0/24 for PPTP (on ppp0). Clients can connect, but they haven't "internet". Any suggestions will be appreciated. Second whole day fighting with no results. EDIT: iptables -t filter -F - it resolved my problem :-)

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• App for family tech support tracking?

  - by slothbear

  I do tech support for several groups within my family. They usually have a document or notebook of questions for me. They often record my advice, but then ask me again later. Some communications are by email (nice record for me, although they never think to search). Some sessions are in person, usually with a followup email from me for the record. Which they forget about. I'm not trying to force them to be more 'professional', but I would like to streamline my support a bit, and give them a place to look for past answers. Some of them would like a standard place like that, rather than reasking me the same questions. The solution has to be free. And web-based, although email-in for questions would be great. I'll be doing most (all?) updating of the system. Mobile/iPhone access would be nice, but not required. Ideally, a system with topics and responses would be good, but I'd need a way to promote one response as 'the answer'.

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• TCP Handshake and port numbers

  - by Guido

  (I have a question about the TCP handshake and how port numbers are assigned, if this does not belong here, let me know.) Hi, I'm studying TCP/IP from the book "Internetworking with TCP/IP" by Douglas Comer. In the TCP chapter it mentions that TCP defines an "endpoint" as a pair (IP address, port number), and a connection is defined by two endpoints. This has a few implications, such as, a local TCP port could be in several connections at once, as long as there are no two from the same IP and the same remote port. This also means that the amount of established connections is almost limitless (2^16 for every IPv4 address. 2^48 in total). Now, in class, I was told that when one connects to a listening port, both sides agree on a different port to use, so the communication can happen and the listener socket remains free. This was also my belief before reading the book. Now I feel like I should obviously trust the book (It's Comer!), but is there any truth to the other explanation? Thanks

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• Looking to replace Ghost with FSArchiver or Clonezilla, few questions about capabilities

  - by Daniel Wright

  I work for a PC Repair company and we are looking into setting up a dedicated machine with externally accessible SATA bays to clone harddrives as a safety net incase something goes wrong during a repair. We currently use a SATA/PATA to USB bridge called MagicBridge and Norton Ghost on any workstation, but we're looking to move away from Ghost. We have a computer with a large RAID5 array with Windows Server 2008 Standard currently installed, but this can be replaced with a flavour of *nix. I have some experience with Clonezilla, but FSArchiver also seems like a suitable replacment too. My Head Technician wants to know if my chosen solution (probably Clonezilla or FSArchiver, but I'm open to free suggestions) is capable of: Cloning a degraded RAID, such as a single drive from a RAID1 mirror without complaining Producing images that are easily mountable (he'd prefer them to be mountable in Windows, but if there is no other easy way, *nix should be fine) akin to Ghost Explorer so individual files can be restored as well as being able to do bare metal restores. My apologies for wordiness but I wanted to be thorough in my explaination. Thanks for any suggestions or tips :) EDIT: I've just found out that Clonezilla has a workaround for cloning RADI1 drives EDIT2: Found the answer to both of my questions, aparently I wasn't phrasing my searches right, could this question be deleted please?

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• Damaged partition after disk image

  - by Charles Gargent

  I am trying to clone/backup a disk with Windows 7 Pro 64bit on it. First I tried Easus Todo Backup and used disk clone option without sector by sector copy. I then plugged in the new drive and I get the following error. "Invalid or damaged Bootable partition" I then plugged the old drive back in and I am greeted with the same error. My next step was to try the sector by sector disk clone, but still I get the same error. I have tried fixing the mbr with the windows disk but that makes no difference. I have tried some other free tools and I get the same error. I have tried this on a different machine running Windows 7 Enterprise 32bit without this problem. I have done some searching and the only thing I can come up with is this post from the Acronis forums http://forum.acronis.com/forum/8254 suggesting that the bios is reading my disk geometry incorrectly. Can anyone shed any light on this, is there a way I can fix this either in the bios or repair the mbr every time I reimage it?

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• Build suggestion for mini itx server [on hold]

  - by Spyros

  I am looking to create a home server and since there does not seem to be a nice ready made one to purchase, i thought of building a mini itx one. I am not familiar with the best hardware/case to pick and therefore i thought i would ask for your experience. I will most probably install a simple linux distro, probably Debian and most probably without a desktop environment as well. Therefore, I am not looking for the best graphics card, though a decent one is preferred for sure. I would say that the most important thing is that the case/hardware play well with each other and the machine has decent specs ( i think something like 8gb RAM and 1TB hdd is most probably my most important things). I understand that this question can be closed as subjective, but it would be a great help for me if some of you guys who have been doing a similar build, can suggest something. I tried to find a stack exchange variant for the question, but it seems that this one more closely relates to the subject. But I will definitely understand it if people close it due to being subjective in nature. If you can maybe move it somewhere or so, please feel free to do so. Thank you for your time :)

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• Are These Parts compatible?

  - by ell

  I have never assembled a PC before, although I have taken an old one apart and replaced a few parts in others here and there so I have (very) limited experience. I have been looking to make a pc and here are the parts I might buy: Foxconn P45AL Intel P45 (Socket 775) DDR2 Motherboard (with onboard sound I believe) Gigabyte GeForce GTX 460 OC 768MB GDDR5 PCI-Express Graphics Card Already have 2 1gb sticks of dual channel DDR2 memory Intel Core 2 Quad Q8400 LGA775 'Yorkfield' 2.66GHz 4MB-cache Processor Samsung SpinPoint F3 1TB SATA-II 32MB Cache Hard Drive Antec Dark Fleet Series DF10 Gaming Enclosure – Black I already have monitor, mouse, keyboard and DVD/CD drive Akasa Freedom Power 1000W Modular Power Supply I have never done this before so feel free to laugh at me for getting something obvious wrong, forgetting a vital component etc. but is all of this compatible? And have I gone overkill on the PSU, if so, please recommend one. Thanks in advance, ell. EDIT: Added PSU which I forgot to mention EDIT: I would be using this to surf the internet, write e-mails, chat, word process, play games such as team fortress 2 & spring rts (at highest graphics hopefully), some 3d modelling in blender, some opengl programming, and image editing in GIMP.

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• XP Pro freezes on welcome screen

  - by Peter B

  I have a problem that sounds much the same as http://superuser.com/questions/83101/how-to-diagnose-a-freeze-on-startup-in-windows-xp About every 2nd or 3rd boot, XP-Pro freezes on the Welcome page (the one showing the user name icons). The mouse moves the cursor OK, but clicking on an icon does nothing, and neither does any keystroke. If you press too many keys there is a beep and after that the mouse won't move the cursor anymore. The work-around is always to reboot into Safe mode and request a CHKDSK /R After this, the next boot is fine. There are no related entries in the Event log when the problem occurs. The only two entries are: "Microsoft (R) Windows (R) 5.01. 2600 Service Pack 3 Multiprocessor Free." "The Event log service was started." Update 1: Many thanks for that but I found no problems with any diagnostics I have run. But, I have managed to locate, and code round, the source of the problem - which is with whatever processing goes on behind the XP Welcome (as opposed to "classic") login screen. Unfortunately, having classic login means you don't get the useful Fast User Switching (FUS) login/switch mode. So, to retain this, my fix is: Add a Windows shutdown script (using gpedit.msc) to force "classic" mode for the first logon after next XP startup, by running: reg add "hklm\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v LogonType /t REG_DWORD /d 0 /f Add a Scheduled Task to run at User Logon that enables Welcome screen (and hence FUS) by running the same command with 1 instead of 0 after the /d flag. The task is run as a privileged user (who can run "reg add").

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• Windows 7 fails to connect to the internet a few minutes after startup

  - by SageTheGreat

  Problem Earlier today, when I turned on my desktop computer, my internet connection works fine. Cryptocurrency miners connecting and hashing as usual and I can browse websites. But after a few minutes, my miner fails indicating that there is something wrong with my internet connection. Tried refreshing my browser and is stuck at "resolving host", and then presented me an error. After that, i can't browse sites anymore. But the weird thing is that the network icon in Windows 7 shows no signs of problems. Solutions Made Restarted my computer without doing anything: Problem persists. Tried using the network troubleshooter of windows: Reported no problems Stopped bonjour still no progress. Loaded windows using Last good config: still no progress. Restarted Modem: No change. Current Status I currently did a system restore to my system to a point before installing the latest update from Microsoft. Because earlier today, I installed some updates and after that, the problem started to appear. (After system restore, same problem.) Latest Programs installed before the problem MS Visual Studio 2013 (but internet still worked fine after the install). I hope someone could provide answers on this problem. It is my first time encountering this. EDIT: Additional Info OS: Windows 7 SP1 64-bit AV: Avast Free Antivirus Internet Connection Type: Ethernet It appears that my Laptop can't even connect to the machine thru Remote Desktop My laptop and phone on WiFi works fine and can connect to the internet. EDIT 2: Whenever I boot into Safe Mode, my Internet is fine.

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• Software way to cool down an old MacBook Pro

  - by notMacBookProSuperUser

  Hi all, First a little background: I've got lots of computers, including Linux PCs and two MacBook Pro (and a MacMini). My concern is with my 'old' MacBookPro (Core Duo). It really does overheat. Warranty is long void. Years ago (I'd say 2.5 years ago or so) one day it overheated so bad that the battery inflated due to the heat. I got a new battery for free but it's still getting incredibly hot (much other than any other computer I've got: my newer Core 2 Duo MacBook Pro doesn't get nearly as hot as the old one. It s really a pain because I use my old MBP when I m in front of TV, having it on my lap, and it can really become unbearable. I don't want to open that old MBP. On Linux I can force a new CPU 'governor' that decides how the CPU is allowed to operate: it can be 'on demand', 'always max speed', 'always speed x', etc. Does the same exist under MacOS X? Is there a way, say if a 1.86 Ghz Core Duo can run at 1.6 Ghz, to ask MacOS X: "never run this CPU above 1.6 Ghz" ?

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• Can't Start SQL Server 2005 Agent - Start/Stop Are Not Enabled

  - by DaveB

  We have a brand new install of SQL Server 2005 on a Windows 2008 Server. When using the SQL Server Management Studio (2005 or 2008) from my Windows XP Professional workstation, if I right click on the SQL Server Agent, I get the context menu but the Start and Stop options are not enabled(grayed out). I am using Windows authentication, I am a member of the SysAdmin and Public SQL Server roles. Also, when right clicking on Maintenance Plans and selecting New Maintenance Plan, nothing happens. I was able to create a maintenance plan with the wizard but now am unable to execute it because SQL Server Agent isn't running? From what I was told by an admin who had access to the server, he was able to login to the box using the domain administrator account and start the SQL Server Agent service from the services applet or from the local instance of SQL Server 2005 Management Studio. Even after he started the service, it still didn't appear to be running from my workstation view through the management studio. What do I need to change to allow me to administer the agent and maintenance plans from my workstation? If I wasn't clear about anything, feel free to ask for clarification.

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• Recovering drive via boot to Win7 setup command prompt

  - by Valamas

  I am trying to recover data from two old IDE drives. Drive1 has been successful, but something is wrong with Drive2. It does not appear as a drive letter. Due to limited legacy hardware, the only way i can see these drives is to boot using windows 7 setup and goto the command prompt. Without going further as to why, my question is how i can access the data in this command prompt. I discovered DISKPART command and while a first time user, it looked like something that can fix my problem. Here are the results of my diskpart commands. At the bottom is a image of the commands taken with a camera. The Drive2 is present because when using the diskpart command, I can see it. How can I copy the information using a robocopy script if the drive letter is not available? how can I assign a drive letter? Is there any repair command I need to execute? When i execute DISKPART, the following is what i see. DISKPART> LIST DISK Disk### Status Size Free Disk 5 Online 37 GB 2048 KB So then I select disk 5. DISKPART> SELECT DISK 5 "Disk 5 is now the selected disk" When I list partition DISKPART> LIST PARTITION Partition ### Type Size Partition 1 Primary 101 MB Partition 2 Primary 37 GB So I select partition 2 "Partition 2 is now the selected partition." I then try to assign a drive letter DISKPART> ASSIGN LETTER=G "There is no volume specified." "Please select a volume and try again." When i list volume the drive is not present. DISKPART> LIST VOLUME Result of the above commands

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• Integrating Nagios with a ticketing system/incident mnagement system

  - by sektor

  Is there a free ticketing system/incident management system which will help me in achieving the following? 1) If a service goes down then Nagios alerts the on-duty staff and pushes the status to some backend or DB as a ticket, say the initial status is "New". 2) The on-duty staff logs in through a frontend and acknowledges the new ticket by marking it as "In progress", so now the status of the ticket changes from "New" to "In progress". 3) If even after "n" number of minutes no person from on-duty staff has changed the ticket status to "In progress" then Nagios alerts the next level of contacts. Although if the on-duty staff has acknowledged the ticket then there is no need to alert the next level. 4) When the service comes up Nagios closes the ticket by marking it "Closed" Now I already have Nagios monitoring set up and currently it alerts by sending text messages and mails, what I'm looking for is some framework which only escalates the issue(alerts the second level) if the first level(on-duty staff) fails to respond to the initial alert. By "responding to the alert" I mean, the on-duty staff can login via some frontend and basically change the status to something like "Acknowledged" or "In progress".

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• VMWare Setup with 2 Servers and a DAS (DELL MD3220)

  - by Kumala

  I am planning to use a VMWare based setup consisting of two VMWare servers (2 CPU, 256GB Memory) and a DAS (DELL MD3220 with 24x900GB disks). The virtual machines will be half running MS SQL databases (Application, Sharepoint, BI) and the other half of the VM will be file services, IIS. To enhance the capacity of the storage, we'll be adding a MD1220 enclosure with another 24x900GB to the MD3220. Both DAS will have 2 controllers. Our current measured IOPS is 1000 IOPS average, 7000 IOPS peak (those happen maybe twice per hour). We are in the planning phase now and are looking at the proper setup of the disks. The intention is to setup up both DAS one of the DAS with RAID 10 only and the other DAS with RAID 5. That will allow us to put the applications on the DAS that supports the application performance needs best. Question is how best to partition the two DASs to get best possible IOPS/MBps, each DAS will have to have 2 hot spares? For the RAID 5 Setup: Generally speaking, would it be better to have one single disk group across all 22 disks (24 - 2 hot spares) with both controllers assigned to the one disk group or is it better to have 2 disk groups each 11 disks, assigned to one of the two controllers? Same question for the RAID 10 setup: The plan is: 2 disks for logs (Raid 1), 2 Hotspare and 20 disks for RAID 10. Option 1: 5 * 4 disks (RAID 10), with two groups assigned to 1 controller and 3 groups to the other controller Option 2: One large RAID 10 across all the disks and have both controllers assigned to the same group? I would assume that there is no right or wrong, but it all depends very much on the specific application behaviour, so I am looking for some general ideas what the pros and cons are of the different options. IF there are other meaningful options, feel free to propose them.

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• LVM2 volume group lost

  - by MrG

  I updated one of my servers, but - although I took care not to modify - the volume groups on /dev/sdb1 were lost, although the physical volumes seem to be still there: [root@server ~]# pvscan PV /dev/sda2 VG VolGroup lvm2 [465,16 GiB / 0 free] PV /dev/sdb1 lvm2 [1,82 TiB] Total: 2 [2,27 TiB] / in use: 1 [465,16 GiB] / in no VG: 1 [1,82 TiB] [root@server ~]# pvs -v Scanning for physical volume names PV VG Fmt Attr PSize PFree DevSize PV UUID /dev/sda2 VolGroup lvm2 a-- 465,16g 0 465,16g HftbaD-MBs0-3p7D-6O13-CrzU-T9Gb-6W0ofB /dev/sdb1 lvm2 a-- 1,82t 1,82t 1,82t dD4XZP-WStA-61xV-5Sff-ifmW-R4rR-JenHoU [root@server ~]# pvck -d -v /dev/sdb1 Scanning /dev/sdb1 Found label on /dev/sdb1, sector 1, type=LVM2 001 Found text metadata area: offset=4096, size=1044480 Found LVM2 metadata record at offset=10752, size=1037824, offset2=0 size2=0 Found LVM2 metadata record at offset=9216, size=1536, offset2=0 size2=0 Found LVM2 metadata record at offset=7168, size=2048, offset2=0 size2=0 Found LVM2 metadata record at offset=5632, size=1536, offset2=0 size2=0 I attempted to fix it as described here and was able to extract the 4 meta data sets listed above (using i.e. dd bs=1 skip=5632 count=1536 if=/dev/sdb1 of=output.file), none of them includes the lv_data which I'm missing. Please advise how I could access the files which should be on /dev/sdb1 there. Any help is appreciated!

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• Are there any open source reseller packages?

  - by Tom Wright

  My department has just been given the right/responsibility to manage our own VPS. The idea being that the bureaucracy will be less for the many small web projects we run. Since each project will be managed by a different team, I was planning on approaching a shared hosting model. Are there any free pieces of software that would help automate the provision of resources each time a team request a new project? Most of the projects have identical requirements - basically LAMP - so it would be these resources that I would want provisioning (and de-provisioning, if that is a word) automatically. Ideally, there would also be a way to hook it into our LDAP authentication backend too, though I could probably make this sort of modification if necessary. Since we won't be charging our "client" however, we won't need the ability to generate invoices, handle payments, etc. etc. EDIT: Sample workflow Login authenticated against LDAP Username checked against admin group (not on central LDAP) Click 'new project' and enter project name User created on VPS with project name as username Apache virtual host created and subdomain (using project name) allocated FTP & MySQL users created

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