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• Certain selected files are not deleting when I use Disk Cleanup

  - by Stephanie Malouff

  I am using Windows 7 and have been trying to retrieve disk space, but when I run Disk Cleanup the Temporary Internet files (18.1KB) and System archived Windows Error Report (267KB) will not delete. It goes through the process as if they are being deleted, but my disk space remains the same; I then go back to Disk Cleanup to see if they have been removed and they are still there. I have tried removing them individually as well, but the outcome is still the same. Can someone please tell me why this is happening and what I can do to get them to delete properly?

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• Windows 2008 Server SP2 64bit - TCP Connections never releasing after TIME_WAIT

  - by Peco

  Hello fellow admins :) We have an issue with Windows 2008 Datacenter edition SP2 64bit. We have a process that is polling very frequently and establishing new TCP connections. The system gets in a state where we end up with over 16k connections in TIME_WAIT state. The default OS timeout is 120 seconds after which these connections should go away, but that never happens. These connections persist and never get cleaned up even after the originating process has long terminated (we are still at 16k connections two days after the process was killed). The OS is supposed to time them out but it doesn't. Has anyone else seen this behavior and if so what was done to resolve it. We are aware of how to tune the tcp stack to make the timeout shorter or allow more connections but this is not the issue here. Thanks!

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• Win Server 2008: Task Scheduler runs programs twice or late

  - by SomeName

  Hi, I need to restart a service every day. I have logon hours restricted at 3:00 am, and the server will logout existing TS connections. I have two tasks scheduled: "Daily At 3:20 am every day" "start a program" "c:\windows\system32\sc.exe stop myservice" "Daily At 3:22 am every day" "start a program" "c:\windows\system32\sc.exe start myservice" I came in today to notice that the service wasn't running. I've been digging in logs, and found these entries: For stop task, history: a) 3:29:35 am: Action Completed (sc result code 0) b) 3:20:00 am: Action Completed (sc result code 0) For start task, history: a) 3:29:35 am: Action Completed (sc result code ERROR_SERVICE_ALREADY_RUNNING 1056 (0x420)) b) 3:22:01 am: Action Completed (sc result code 0) Checking event logs shows me: a) 3:29:35 am, Application log, Source myservice, "The service was stopped" b) 3:29:25 am, System log, Source Service Control Manager, "The myservice service entered the stopped state" So, What would have caused both tasks to run at 3:29 am? Why don't I see a message from the SCM saying that the service entered the running state? Is this the preferred way to do this? Thanks!

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• tools to check password security

  - by tombull89

  Hello again. I'm after a tool to test how long a password could stand up to a hacking/cracking technique such as brute force as two passwords that are critical to a work system is one word that is in the dictionary, and another is a word in the dictionary with a capital letter and a number instead of a letter. I'd prefer it to be offline and free that you can run on a computer to see how long the password will hold out. Maybe even at the windows login prompt but I realise such programmes may be shady and erring on the side of illegal. Anybody have any suggestions?

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• Why is Windows Update telling me to install Internet Explorer 10 even though it is already installed?

  - by gparyani

  I have a Windows 7 laptop. For some reason, Windows Update keeps telling me to install Internet Explorer 10 for Windows 7 even though it is already installed (downloaded from Microsoft website). Whenever I try and install it from Windows Update in order to get rid of it, I receive error 9C48. What is the problem and how do I solve it? (I've noticed several entries for similar problems online, but those are all for Internet Explorer 9). As I said in the comments, my system keeps trying to install the same update when it is shutting down, only failing with the same error. It is hogging my shut down button and wasting time during shutdown. Update: I just went and installed Internet Explorer 11 from the Windows website. However, Windows Update continues to offer me Internet Explorer 10. How can I tell it that the update is in fact installed so that it instead starts offering me updates?

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• Wireshark Not Displaying Packets From Other Network Devices, Even in Promisc Mode

  - by eb80

  System Setup: 1. MacBook running Mountain Lion. 2. Wireshark installed and capturing packets (I have "capture all in promiscuous mode" checked) 3. I filter out all packets with my source and destination IP using the following filter ("ip.dst != 192.168.1.104 && ip.src != 192.168.1.104") 4. On the same network as the MacBook, I use an Android device (connecting via WiFi) to make HTTP requests. Expected Results: 1. Wireshark running on the MacBook sees the HTTP request from the Android device. Actual Results: 1. I only see SSDP broadcasts from 192.168.1.1 Question: What do I need to do so that Wireshark, like Firesheep, can see and use the packets (particularly HTTP) from other network devices on the same network?

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• Strange behavior of USB HID device

  - by spyder

  I have a device with ARM that work as USB HID. It working well on Windows XP x32 sp 2 and sp 3 (USB 2.0, many PCs), on Windows 7 x32 Ultimate (USB 2.0, Lenovo and HP laptops) but do not work on Windows 7 x64 Home Premium sp1 — plugged and unplugged frequently in USB 2.0 with baloon with "unknown device" in system tray and works not well in USB 3.0 port (MSI all-in-one PC), not all programs can detect it. What can cause this problem? Update. I connected my device via USB hub and everything works fine with it.

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• Need to automount dvd or cdrom at fixed mount point in Ubuntu 11.04

  - by Lindsay Haisley

  Ubuntu 11.04, by default, automounts a cdrom or dvd at /media/<vol_name>. I need to make the automounting system use a fixed name instead of the volume name for all CDs or DVDs inserted into this particular drive, e.g. "/media/op-drive0". A bit of searching turns up pretty much the same solution I used, successfully, on an older, gentoo box, which is to create an fdi file for hal, along the lines of the instructions at https://bbs.archlinux.org/viewtopic.php?id=91450. This doesn't seem to work on this box. Other sources say to use the gnome-mount utility to set the mounting properties. Ubuntu 11.04 doesn't know about the gnome-mount program. Any ideas?

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• How to automatically take daily HDD backup?

  - by user13107

  I think my HDD might have crashed. I don't want to lose data if this happens again. I have dual boot Windows/Ubuntu system. What is the best way to backup data and other software settings in Ubuntu? I don't care much about Windows partition, important stuff is in Ubuntu. I have 1 Tb external HDD (laptop HDD is of 500 gb total). One way would be to run rsync every day (or via cronjob) to backup everything to external HDD. What might be better ways of achieving this (backup)? Also are instant backup software recommended? Are there any disadvantages of instant backup as opposed to daily rsync?

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• Why has my Mac been running fsck_hfs for two days now?

  - by Nate

  I first noticed that fsck_hfs was running, taking up 50-75% of a CPU, yesterday. It continues to run today. ps shows that it is doing /sbin/fsck_hfs -f -n -x -E /dev/disk3. Only problem: I don’t think I have a /dev/disk3. Why is it running? Will it ever finish? Can I kill it? What is /dev/disk3? Could it be my Time Machine volume, which is not mounted at the moment? System Info: MacBook Pro (2008). It has two disks installed—the internal disk (/dev/disk1) and a PC Card SSD (/dev/disk0, surprisingly). It connects to a remote Time Machine volume attached to an Airport Extreme base station.

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• slow disk writes between host and guest

  - by Jure1873

  I've got a ubuntu (server kernel) on a amd x4, 4gb ram, 2x seagate sata 1 tb disks for testing virtual machines and the write performance is very slow. The two disks are in a software raid1 array, one small boot ext3 partition, 10gb system partition and the rest is a xfs partition (about 980) gb for data (virtual machines). If I'm copying files from the virtual machine to the host with rsync or scp the copy frequently stalls or goes at about 1mb/s. What's wrong? I've tried disabling barriers on xfs, increased logbufs, allocsize, but it seems nothing helps. The strange thing is that await (for example during copying) for sda is usually under 100, while for sdb is around 400. Any ideas on what could be wrong / what could I do to improve this setup?

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• Managing PHP processes on Windows 7 (with WAMP)

  - by Andrea

  Is there a way to manage (especially list and kill) long-running PHP processes on a Windows 7 system set up with WAMP? Every once in a while, I'll accidentally throw an infinite loop into a PHP process and want to kill it. Right now, all I can think to do is to restart all my WAMP services but sometimes the PHP processes manage to survive right through the restart, i.e., I still see them outputting to logs even after WAMP's restarted. And if the process isn't logging, then I have no way at all to know when/if it's been killed. Not to mention, this will wipe out everything I'm doing with WAMP, not just a single process. I don't seem to see anything relevant in the Windows Task Manager, but maybe I'm missing something.

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• How to determinate prerequisite of a setup ? DisplayLink on WindowsXP embedded wont start

  - by user35320

  Hi, I want to install DisplayLink on an embedded Windows XP device. The problem is that the setup starts and asked for my approval and after I confirmed it nothing happend. The setup just dissapear. On the official DisplayLink site there they say that they dont support embedded system but there must be a way to get this working on it. So I am searching for a tool to see what the setup is trying to open or what the preerequisite of it are to install it and try to get this working. Thanks for you help

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• Where does gcc keep its built-in include directory paths

  - by Charles

  GCC has built in include directories for certain standard headers. I just need to know where this list is. My newly compiled gcc will not compile my little test C++ program because it cannot find standard headers. I think it fails because of some config options I used to make my file system more organized. I set the bindir and libdir, which I think might have screwed up the built-in include paths for some reason. Program (dummy.c): #include <iostream> void main(){} Command: g++ dummy.c Error: dummy.c:1:20: fatal error: iostream: No such file or directory

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• Hide Win 8.1 "tip" about "Switch between apps"?

  - by Carl R

  I've just installed Win8.1 and I'm trying to set up IIS. When I open Add remove programs from the start menu I get the pc-settings app. In the pc-settings app I get a "tooltip" or whatever we should call it, that hints me to "Switch between apps" by swiping from the edge. Well fine, but I don't want to do that right now, and I can't get that tip to dissapear. The tip lingers on even into Visual Studio, covering my code. I can't swipe because I don't have a touch screen, and also I'm on a multimonitor system that shows this tip in the middle of the screen. Here's a screenshot for you, where I put the web browser slightly over the left monitor. So, besides rebooting, how am I supposed to kill this very informative tip? EDIT When I kill the app by alt-f4 it dissapears right until I open the settings app again, then it's back. What I'm asking about is how to dismiss items like this in general.

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• Why would anacron not be running?

  - by Rory

  I have a Ubuntu system that has anacron installed. However I'm pretty sure it's not running. It's not running the commands in /etc/cron.daily to rotate the syslog files (I'm using sysklog, which has its own rotating log method, not using logrotate). The last time the logs were rotated were in October 2009. /var/spool/anacron/cron.daily exists and the contents are 20091015. AFAIR we had a power outage then, and everything rebooted. How can I debug anacron? How can I see why it's not running? My first instinct is to look for /var/log/anacron, but that's not there. How can I fix it to make it run again?

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• Is it possible to have Grub2's boot.img in the MBR and have it load core.img from a separate boot pa

  - by wesley

  I have a multiboot system that I would like to use Grub to manage. The version of Grub shipping with my Linux distro is Grub2, and it installs its equivalent of stage 1.5-2, core.img, into the remaining sectors on the first track after the MBR but before the first partition. Unfortunately, those sectors are needed by another program. I have a separate primary /boot partition. If I could only keep boot.img as my MBR but have it look in the /boot partition for core.img rather than the embedded one in the sectors immediately following the MBR, everything would work fine. Is this possible with grub2?

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• [Linux] Bind/map Character to alt+[some key]?

  - by Paul

  OS: Ubuntu In programming and various terminal programs (Screen, Vim) the [, ], { and } tends to be used a lot. I'm using a Norwegian keyboard where these are placed such that I have to stretch my fingers a bit too long for whats comfortable. To make it easier I though I'd try to make alt+[some key] be one of these characters. Is there a way that I can bind, say alt+æ (Norwegian letter) to '{' system wide? Btw, is such thing called binding, mapping or something else? I'm getting a bit confused by the terms... :)

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• Using command line to connect to a wireless network with an http login

  - by Shane

  I'm trying to connect to a wifi network where it hijacks all requests and redirects you to a page where you have to agree to a terms of use before it lets you connect to the actual outside world. This is a pretty common practice, and usually doesn't pose much of a problem. However, I've got a computer running Ubuntu 9.10 server with no windowing system. How can I use the command line to agree to the terms of use? I don't have internet access on the computer to download packages via apt-get or anything like that. Sure, I can think of any number of workarounds, but I suspect there's an easy way to use wget or curl or something. Basically, I need a command line solution for sending an HTTP POST request essentially clicking on a button. For future reference, it'd be helpful to know how to send a POST request with, say, a username and password if I ever find myself in that situation in another hotel or airport.

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• Can I re-attach SSH key forwarding through a disconnected Screen session?

  - by David Mackintosh

  I have a laptop on which I have pageant (the PuTTy SSH key agent) running. If I ssh to a system and launch screen, the ssh key forwarding works properly. However, if I disconnect from that screen session, log off, then later reconnect -- the key forwarding doesn't work any more. I am presuming that this is because when I reconnect the key forwarding is set up on different ports for the new ssh session than was the old one. Is there a way to teach an individual screen window to reconnect to the agent forwarding so that I can use my key to forward again?

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• Windows 7 freezes on boot screen

  - by this is a dead end

  There was some update that required me to restart my computer, so I did. when it restarted, it stays at the Windows boot screen forever, the screen that says "Starting Windows" and has that Windows logo in the middle. I've tried the start up repair program that shows up when I click F8 when the computer starts. And tried system restore but, it says it has restored windows successfully but it still freezes on the boot screen when I reboot it. When I try starting it in safe mode, it gets to the blue Windows background, the one with the logon screen, then says "Failure configuring Windows updates. Reverting Changes. Do not turn off." Then after a while it reboot by itself. Just noticed, the logo animation on the boot screen is still animated. So it's not completely frozen.

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• Host a Debian repository on a Windows Web/Ftp server

  - by Dave

  At the risk of causing a matter vs. antimatter paradox that would end the world as we know it ... Is it possible to host a Debian repository on a Windows server? We have some applications which are available for Windows, Mac OS X, and Linux. Our web site, from where the application can be downloaded, is a Windows Server 2008 box running IIS 7. That is not going to change, and I would like to avoid having to purchase another server and/or domain. I would like to take advantage of the Debian packaging system so that I can just instruct users to add our repository to their software sources, and then they can install, get updates, resolve dependencies (some of which are not yet in the stable/main distributions of my target platforms), etc. The instructions I can find on the internet require linux-specific tools to create a local repository, but are unclear as to whether or not that can be copied to an FTP site as is, or if it requires some local daemons to be running or something.

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• How can you convert audio (3.5mm) to S/PDIF?

  - by SSumner

  I have a monitor that I want to use as my 'TV' for my gaming system. I connect it via HDMI, so sound and video go through the monitor, but I want sound to my headphones, which travels via optical (S/PDIF) cable. The monitor (Dell U2713HM) has a 3.5mm audio jack on it for line out, but I couldn't find anything that simply plugs in an converts the analog audio signal to a digital one so I can plug in a S/PDIF cable. What sort of device do I need to do this? (I am not asking for shopping recommendations, merely what options allow this conversion. I would prefer the smallest option, as space is limited).

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• /srv/mm/Music (etc) Twonky won't scan here for media

  - by Hamid

  Is there something special about /srv/mm/ that Twonky server refuses to scan there? I previously had my system set up with all my Music, Video and Photo folders in /srv/mm shared by Samba, miniDLNA etc, with no problems. I came to install Twonky to replace miniDLNA and after two days of tearing my hair out, changing permissions and owners of the directories I ended up making a new directory at /multimedia and moved my Music, Video and Photo folders in there. Twonky then scanned them all straight away with no problems. I'm running Arch Linux (plugapps specifically) on a NAS. The solution is already implemented (moving the directory) I'm just wondering technically why Twonky might have refused to look for my media in the /srv/mm directories.

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• NATing with a single-homed machine possible?

  - by Harry

  I have the following setup: a) a single-homed machine, A, that can see the Internet. b) other machines B, C, and D that cannot see the Internet. c) A, B, C, and D can see each other. d) all machines are running either RHEL 5.3 or Fedora 16. Question: Is it possible to have B, C, and D share the Internet connection with A somehow? Note, again, that machine A does not have a second NIC installed. (The solutions that I am finding on the Net assume A to be a dual-homed system!) Also, could you please recommend a set of book(s) or online resources for a current and in-depth coverage of iptables for people with only a basic knowledge of TCP/IP?

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