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• Active FTP client blocked on Windows XP

  - by Ian Hannah

  Summary We have a FTP server (running in active mode). We have an FTP client which is connecting to the server, carrying out a task and then closing the connection. The FTP Client can perform this operation on multiple threads. Problem We have a situation where customers are experiencing occasional failures to carry out operations on a FTP connection. The actual connection has been made to the server but when the server attempts to return data on the data port if fails. Observations We have a simple test FTP client which is running two separate threads. Each thread is performing a recursive listing of files from a root directory. With the firewall running on the client machine the hang happens within a few minutes. If the firewall is turned off on the client machine, the test application seems to run correctly. This does point to a potential firewall issue. However, with the firewall on we can list files on our company FTP server without any issues. If the simple test FTP client runs a single thread then we do not experience any problems whether or not the firewall is turned on. We have another simple test FTP client which was running 4 threads (with each opening a new FTP connection, doing a directory listing and closing the FTP connection as fast as possible) overnight with the firewall turned off. With the firewall turned on it fails in a short space of time. The confusing thing is that if the test FTP client and the FTP server are run on the same machine the failure occurs even though the firewall is turned off. This means that the problem may not be firewall related. Any help with what this could be would be much appreciated. Thanks Ian

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• Postfix spool on ext3 optimiziations in >=linux-2.6.34 days

  - by Luke404

  Given the very specific nature of the subject (we're not talking about mailboxes, just the spool; we're not talking about other filesystems, just ext3; and so on...) and the maturity of the softwares involved (linux kernel, ext3fs, postfix) I'd think there should be a more or less agreed on set of best practices to filesystem related tuning. I'm trying to get a roundup of them: data=journal became the default in recent kernels (somewhere around 2.6.30 IIRC) so we should be ok with that Wietse Venema says atime must be on, but Postfix documentation recommendsnoatime while talking about the Incoming Queue. Does that mean that postfix needs atime on just for some queue directories and will benefit from noatime on the others? can we use noatime if we just don't use ETRN? filesystem can be mounted nodev,noexec,nosuid - no* won't prevent you from setting attributes (postfix uses exec attr) they just won't have any effect (we don't run anything from the spool) the fsync() issue cited by Wietse and/or the chattr -S are probably linked to sync/async options of ext3fs but I do not understand them enough. Mouting the filesystem with async option is equivalent to chattr -R -S the whole fs? Seems like it will increase performance, but will that pose a risk of "loss of mail after a system crash" or is it really "safe on /var/spool/postfix" ? would you tune anything else on postfix-2.6.x to work better on ext3 or do you leave defaults everywhere? is there a "best" linux I/O scheduler for this kind of workload (namely CFQ or deadline?) or that's something that will vary too much based on hardware configuration? would you tune anything else in the filesystem or in the kernel? anything else? References: Postfix Performance here on SF Postfix documentation about the Incoming Queue Wietse Venema in Best file system on [email protected] here Postfix and ext3 on [email protected] here and there

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• 10Gbe sfp+ Cross Over Cable required? Is there such a thing?

  - by dc-patos

  To preface, this is my first experience with 10GBe networking and I have encountered an issue which research does not seem to document a solution for... I have two servers (older DL580G5 and DL380G5), each with a HP NC522SFP 10Gbe dual sfp+ port adapter. I have purchased copper "passive" direct connect adapter cables (which look like twinax), which seem to work well when I connect them to the sfp+ ports on my Dell 5524 switch. However, if I directly connect the two servers with the same cable, the link doesn't come up. I am running WS2012 standard on each server. My intention is to use one of these servers as a home brew SAN and I would like to enable mutiple 10Gbe paths for iSCSI traffic. My question(s): Can I connect the two adapters to each other, such as I would with other less speedy generations of ethernet? If I can, do I require a crossover cable, or some type of other sfp+ cable solution to do this? My 10Gbe sfp+ switch ports are premium, but server to server connections are doable in small numbers for me and I would really like the multiple paths this would give me. Is there a simple solution?

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• Windows 7 VPN Error 619

  - by TravisPUK

  So I am running Windows 7 Enterprise. This morning I was able to VPN using the built in VPN (Connect to Work Network etc). I had to change my network's IP address range and now the VPN will not work. It just stalls on the Verifying user name and password... message. But then it returns the 619 error. Anybody know why changing my machine's IP address would cause this problem? Where should I be looking to try and fix this issue? I have tried this on a Windows XP machine that also had the IP address range change and this still connects fine using exactly the same connection details. EDIT The internal network range changed from 192.x.x.x to 10.x.x.x. This was done on the entire Active Directory. All machines are running fine and the Windows XP machine, that works going to the same client VPN mentioned above is on the same network. Both the XP and the Win 7 machines are using DHCP served by the Domain Controller. The client domain is not performing any IP range checks/restrictions. The VPN is outside the internal network, connection is being made via the Internet and not passing through any other machine, other than the normal domain machines, ie DNS etc. This is passing through a router and the router has the relevant VPN passthrough options configured. All internal machines are working correctly with other forms of VPN, ie Cisco, Sonic etc (these were tested on other machines, they are not installed on the Vista or Win7 machines). After further testing, this is occurring on all Win7 and Vista machines where they can no longer connect to the client VPN, however all XP machines can still connect fine. This has been tested on three Vista, two Win7 and five XP machines. All machines are on DHCP and tests have been done with both the firewalls turned on and off, as well as with fixed IPs being used. Thanks Travis

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• How to fix a bootable USB Kubuntu installation when the drive has maxed out?

  - by NoCatharsis

  I used Universal-USB-Installer-v1.5.1 from PenDriveLinux.com with Kubuntu 10.04 so I could set up my 4GB flash drive as a totally independent installation. Unfortunately, there was an OS upgrade available which Kubuntu downloaded and attempted to install. This, along with some other software, apparently maxed out my drive before I realized it. Now when I try to boot from the drive, everything boots as normal to the OS boot screen where I select "Boot from this Kubuntu USB Installation." The startup process initiates, then stalls about halfway through and hangs indefinitely. I'm guessing the drive is trying to use space it doesn't have and completely stops working. I realize that once the OS upgrade is in place, the old files could be deleted for a potential 700MB space gain. However, I just have no way to get into the OS and complete the upgrade. My main OS is Windows 7. Is there a way I can fix this issue from within Windows without formatting the entire drive and reinstalling Kubuntu from scratch?

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• Copying compressed files from Server 2008 R2 network share to XP client via VPN fails

  - by Dejan Janjuševic

  At the first sight the question looks similar to this one. I have experienced an odd behavior while trying to copy a certain file from Windows Server 2008 R2 network share to Windows XP Professional client via VPN. The VPN was set up using RRAS on the server machine. I will try to provide as much informations as possible in order to make the issue more clear. When trying to copy the compressed file sized ~2.5 MB (via Explorer or CMD, doesn't matter), the process stalls after some 20%, producing an error message after few seconds: Cannot copy filename: The specified network name is no longer available. If i start the command ping -t 192.168.2.1 (where the IP address specified belongs to the server) side by side with the copy command, I can clearly see that the ping command times out for few seconds as the copy process stalls. When this happens all network activities are frozen. After a few seconds, the network recovers, ping continues to run normally, however the copy process stands still before it displays the above error message. Copying other files (I tried 4-5 files), of which some are larger and some are smaller, succeeds. Seems to me that I can copy all uncompressed files. As soon as I try to copy an archive, the process freezes. Even a 707 KB large archive can't be copied. I can only reproduce this behavior on 2 machines, both Windows XP Professional, one is w/ SP2 and the other w/ SP3. Other XP clients don't have this problem, neither do Windows 7 clients. If I connect to the server using Remote Desktop Connection without using VPN from either of these 2 machines (using the same user account), I can copy anything I want normally, even these "problematic" files. Does anyone have any clue about what could possibly be going on?

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• SQL Full-Text indexing not populating

  - by Sam

  We installed a clustered SQL 2005 installation on windows 2008 and reattached our san drives from another machine and restored to do a migration to new hardware. There have been a few minor issues, but this one has me stuck. Trying to populate Full-Text indexes is not working. I create a basic table with some simple text in a new database and get the same results as old indexes. 2010-09-27 10:30:46.85 spid19s Informational: Full-text Full population initialized for table or indexed view '[SQL_DBA].[dbo].[CIS_Report_Executions]' (table or indexed view ID '1767677345', database ID '5'). Population sub-tasks: 1. 2010-09-27 10:31:15.36 spid19s Error '0x80070003' occurred during full-text index population for table or indexed view '[SQL_DBA].[dbo].[CIS_Report_Executions]' (table or indexed view ID '1767677345', database ID '5'), full-text key value 0x000001DF. Attempt will be made to reindex it. 2010-09-27 10:31:15.37 spid19s The component 'MSFTE.DLL' reported error while indexing. Component path 'D:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Binn\MSFTE.DLL'. 2010-09-27 10:31:15.37 spid19s Error '0x80070003' occurred during full-text index population for table or indexed view '[SQL_DBA].[dbo].[CIS_Report_Executions]' (table or indexed view ID '1767677345', database ID '5'), full-text key value 0x000001E0. Attempt will be made to reindex it. The rebuild/repopulate procedure finishes, but I get zero rows in the index. The .dll in the message is present and the service accounts have access to this. My FTData also has data in it, so it seems there wouldn't be permission issue on this folder. Application throws this error: “PHP Warning: mssql_query() [function.mssql-query]: message: Full-text catalog 'ikm_PageIndex_FText' is in an unusable state. Drop and re-create this full-text catalog. (severity 16) in E:\Inetpub\knowledgebase_insidemesa\lib\database\mssql.php on line 154” A microsoft discussion is the only post I found which had claimed to fix this - said it was registry related, but then didn't post the fix.

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• /dev/input/uinput Device appears to be 'broken'

  - by Adam Luchjenbroers

  I'm trying to setup Pystromo so that I can remap the keys on my Belkin N52TE gamepad. Pystromo basically captures the key strokes and then outputs the remapped keystrokes to the uinput device. However, at the moment it simply swallows the input and outputs absolutely nothing. I've tracked the issue to something being wrong with my uinput device, with the smoking gun being: # ls -l /dev/input/uinput crw-rw---- 1 root plugdev 10, 223 Dec 31 2009 /dev/input/uinput # cat /dev/input/uinput cat: /dev/input/uinput: No such device The uinput module is loaded, and can be clearly seen via lsmod. Anyone seen this before, or can think of something worth attempting? Current Setup Gentoo Linux Kernel 2.6.32 (Gentoo Sources 2.6.32-r1) HP DV7 Laptop Output dmesg dmesg | grep uinput does nothing, and no new lines appear if I run modprobe -r uinput && modprobe uinput. Yet the uinput module can clearly be seen when running lsmod: # lsmod | grep uinput uinput 6200 0 lsusb # lsusb Bus 005 Device 003: ID 050d:0200 Belkin Components Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 002: ID 1532:0101 Razer USA, Ltd Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 002: ID 5986:0143 Acer, Inc Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 002: ID 03f0:171d Hewlett-Packard Wireless (Bluetooth + WLAN) Interface [Integrated Module] Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub lsusb -v PasteBin Update Hmm, updating evdev and hal seems to have partially fixed it. /dev/input/uinput still can't be accessed but Pystromo is now remapping keys successfully. I'm a little bit mystified about what's going on here, but it seems that my understanding of how all this works is flawed. Since I've posted a bounty, I'll leave this here for someone to post an explanation for how user-space input devices work under the hood.

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• Inconsistent DHCP replies with Windows 2008R2 DHCP server

  - by verbalicious

  I've got a Windows 2008R2 standard server running DHCP services. We've noticed that certain clients are receiving inconsistent DHCP replies. We have over 175 Windows workstations in this VLAN that don't seem to have trouble getting DHCP leases. However, PXE-booting clients trying to reach our DHCP server are able to get a lease inconsistently. Additionally, we tried using the "dhcping" tool against our DHCP server and found that roughly two of every three requests time out with "no answer" -- and this holds true when we set the timeout value on dhcping to 20seconds. After a failed attempt, however, we may get a dhcp lease reply immediately with dhcping. This leads me to believe that this issue isn't confined to PXE booting clients, but something more systemic with my LAN layer2 or DHCP. And that possibly my 175 windows clients are experiencing this in some form without my knowledge. We have over 30% of our scope available so the addresses are there. I was unable to find anything in the Windows server "DHCP-Server" log. Of course, my goal is to have my DHCP server reply to every request that it receives on the LAN!

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• Prevent outgoing traffic unless OpenVPN connection is active using pf.conf on Mac OS X

  - by Nick

  I've been able to deny all connections to external networks unless my OpenVPN connection is active using pf.conf. However, I lose Wi-Fi connectivity if the connection is broken by closing and opening the laptop lid or toggling Wi-Fi off and on again. I'm on Mac OS 10.8.1. I connect to the Web via Wi-Fi (from varying locations, including Internet cafés). The OpenVPN connection is set up with Viscosity. I have the following packet filter rules set up in /etc/pf.conf # Deny all packets unless they pass through the OpenVPN connection wifi=en1 vpn=tun0 block all set skip on lo pass on $wifi proto udp to [OpenVPN server IP address] port 443 pass on $vpn I start the packet filter service with sudo pfctl -e and load the new rules with sudo pfctl -f /etc/pf.conf. I have also edited /System/Library/LaunchDaemons/com.apple.pfctl.plist and changed the line <string>-f</string> to read <string>-ef</string> so that the packet filter launches at system startup. This all seems to works great at first: applications can only connect to the web if the OpenVPN connection is active, so I'm never leaking data over an insecure connection. But, if I close and reopen my laptop lid or turn Wi-Fi off and on again, the Wi-Fi connection is lost, and I see an exclamation mark in the Wi-Fi icon in the status bar. Clicking the Wi-Fi icon shows an "Alert: No Internet connection" message: To regain the connection, I have to disconnect and reconnect Wi-Fi, sometimes five or six times, before the "Alert: No Internet connection" message disappears and I'm able to open the VPN connection again. Other times, the Wi-Fi alert disappears of its own accord, the exclamation mark clears, and I'm able to connect again. Either way, it can take five minutes or more to get a connection again, which can be frustrating. Why does Wi-Fi report "No internet connection" after losing connectivity, and how can I diagnose this issue and fix it?

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• Website does not resolve in browser but traceroute is successful

  - by Colum

  I am trying to figure out an issue. My internet is working fine, but this one website is not resolving. It works via a proxy, traceroute works: 1 192.168.1.1 (192.168.1.1) 4.205 ms 0.568 ms 0.510 ms 2 * * * 3 67.59.255.13 (67.59.255.13) 10.583 ms 7.949 ms 7.557 ms 4 67.59.255.61 (67.59.255.61) 10.256 ms 9.576 ms 13.083 ms 5 64.15.8.126 (64.15.8.126) 9.943 ms 11.929 ms 11.452 ms 6 64.15.0.217 (64.15.0.217) 14.655 ms 14.092 ms 13.771 ms 7 64.15.0.118 (64.15.0.118) 33.201 ms 34.875 ms 36.544 ms 8 xe-6-0-3.ar1.ord1.us.nlayer.net (69.31.111.169) 34.027 ms 34.957 ms 34.231 ms 9 ae1-30g.cr1.ord1.us.nlayer.net (69.31.111.133) 82.683 ms 35.138 ms 37.592 ms 10 xe-3-0-0.cr2.iad1.us.nlayer.net (69.22.142.26) 41.657 ms 34.063 ms 34.519 ms 11 ae2-30g.ar2.iad1.us.nlayer.net (69.31.31.186) 35.780 ms 36.361 ms 33.968 ms 12 as33597.xe-3-0-7.ar2.iad1.us.nlayer.net (69.31.30.230) 35.086 ms as33597.xe-3-0-7.ar2.iad1.us.nlayer.net (69.31.30.234) 38.031 ms as33597.xe-3-0-7.ar2.iad1.us.nlayer.net (69.31.30.230) 36.833 ms 13 cr1.iad2.inforelay.net (66.231.176.246) 32.595 ms cr2.iad1.inforelay.net (66.231.176.10) 31.771 ms cr1.iad2.inforelay.net (66.231.176.246) 32.622 ms 14 cr1.iad2.inforelay.net (66.231.176.246) 32.956 ms 33.625 ms !X 41.058 ms 15 * cr1.iad2.inforelay.net (66.231.176.246) 35.312 ms !X * 16 * cr1.iad2.inforelay.net (66.231.176.246) 32.814 ms !X * 17 cr1.iad2.inforelay.net (66.231.176.246) 35.459 ms !X * 53.137 ms !X Ping returns this: Request timeout for icmp_seq 0 Request timeout for icmp_seq 1 Request timeout for icmp_seq 2 Request timeout for icmp_seq 3 Request timeout for icmp_seq 4 Request timeout for icmp_seq 5 Request timeout for icmp_seq 6 But what I can not figure out is why my browsers (Firefox, Safari, Opera) can not resolve the domain. I am on a Wifi connection. What could be the problem? BTW I am on a Mac (10.6.5)

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• Enabling hardware acceleration and Xinerama for multi-monitor/multi-GPU in Linux

  - by mynameiscoffey

  My current setup is three monitors connected as follows (monitors listed from left to right): GPU0 (nVidia GTX 280): - Dell 2405FPW (1920x1200) - Dell U2410 (1920x1200) GPU1 (nVidia 210): - Dell 2405FPW (1920x1200) Works like a charm in Windows 7, not so much in Linux. I seem to only have three real options: Run all three monitors as a seperate X screen, I get hardware acceleration but as they are all independent X sessions I cannot move windows between them and can only have firefox open on one at any given time. Run the two on GPU0 in TwinView mode and have GPU1 as a seperate X screen. Same limitation as 1 but at least two monitors work together ok. I did have an issue where occasionally Linux saw both monitors on GPU0 as a single large monitor however. Enable Xinerama and have everything work as I want it to but hardware acceleration is gone and the display is Windows 95 style choppy. My ideal solution would be to have all screens working as they do under Xinerama without the limitation of having hardware acceleration disabled. I don't even care if that means rendering all three on GPU0 and somehow farming out the display of the third monitor to GPU1, whatever works. My question is this: is there any way to accomplish this? I don't feel like my use case is so out there that there shouldn't be at least some form of support (beyond the three limited options presented above), or is my best option going to be to just suck it up and pick up a better card to replace both that can handle three outputs by itself?

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• Windows 7 x64 RTM USB Port Has Power But Won't Recognize Mouse/Keyboard/Anything

  - by ben

  I have an odd error that doesn't seem to fit in with any of the other odd Windows 7 x64 USB errors that have been kicked up on Google. Here we go: Uninstalled Tortoise SVN and clicked restart computer. My machine had been up for around 28 days On reboot my mouse and keyboard failed to work anymore, couldn't log in. Tried every USB port I have on my Dell 390 and the ports on my Dell 19's, nothing worked. They had power but Windows would not respond when I manipulated the keyboard/mouse. Rebooted my computer and pressed F2 to get into bios, my keyboard is working fine in bios. Keyboard and mouse work fine on other computers when using USB. Found adapters for keyboard and mouse to convert from USB to PS/2 ports, works fine. I'm actually typing this question on the same keyboard, same computer, just using PS/2 ports for my mouse and keyboard. It appears to be a Windows 7 x64 issue. Other things I have tried: Multiple other mice and keyboards, iphone, all with no luck. Each one gets power, but Windows never tries to install drivers or sees that they are connected. Uninstall and reinstall all USB drivers. Drives uninstall and reinstall fine and report no errors in Control Panel. In Power Management I disallow Windows from turning off USB ports to save power Installed the latest nVidia drivers for my graphics card, no change. Anyplace else I can look/try? Thanks!

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• Self-Resetting Power Strips?

  - by Justin Scott

  We are about to deploy a number of secure kiosks into an environment where they may be prone to lightning strikes and power surges on a somewhat regular basis (southern Florida in a place where the existing electrical infrastructure is, shall we say, a bit out of date). Ideally we would use battery backups on each system, but it's not in the budget. We plan to use a standard power strip with a circuit breaker built-in to protect the computers, but management has asked if there is a power strip that can reset itself after the breaker has been tripped. I've looked around and wasn't able to find such a beast, and it seems to me that it would probably be a safety issue for such a product to exist (e.g. if something plugged into the strip is drawing a lot of current and trips the breaker, you wouldn't want that resetting itself to prevent a possible fire). Nevertheless, if anyone has experience with such a product or can point me in the direction of something that would allow the breakers to be reset automatically or remotely (we don't want to have to send someone to each kiosk every time there is a power surge) I would appreciate any tips.

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• Computer resetting semi-randomly

  - by Peter

  Hi, I'm having a problem with my desktop whereby it sometimes resets itself semi-randomly. For example, I'll switch it on, it'll boot an OS and shortly after getting to the desktop it will immediately reset with no warning. The time isn't consistent - sometimes it does it before reaching login. I'm pretty sure it's not an OS thing; have tried Ubuntu and a Windows install and both exhibit it. It also doesn't appear to be heat-related because sometimes it appears to be able to "get past" it and will then run stably even under load; if anything it seems to be worse from a cold start. My gut feeling is some kind of power issue but I'm clutching at straws a little. Any suggestions on how I could go about testing it or trying to narrow the problem down would be appreciated. The machine is four years old now so while I can replace components if needed, it's not worth enough that I'm comfortable buying new parts without being pretty confident that they'll fix the problem. Thanks in advance for any help :) Edit: Okay, the motherboard is a MSI K8N SLI; CPU is an Athlon64 X2 4200+. Has one video card, a GeForce 7800GT. 1GB RAM, not sure of brand; 3 hard drives, two SATA and one PATA. Flashed motherboard to latest BIOS some time ago. Edit the Second: I thought I'd narrowed it down to the PSU for a while, but then it recurred again. I ended up pulling everything out but CPU, RAM and motherboard and it still seems to be stuffed (if anything, it's gotten worse in the last couple of days). I assume it's one of those three components, but the machine is old enough that I don't really want to spend money replacing any of them. So thanks for everyone's suggestions; much appreciated!

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• How to disable mod_security2 rule (false positive) for one domain on centos 5

  - by nicholas.alipaz

  Hi I have mod_security enabled on a centos5 server and one of the rules is keeping a user from posting some text on a form. The text is legitimate but it has the words 'create' and an html <table> tag later in it so it is causing a false positive. The error I am receiving is below: [Sun Apr 25 20:36:53 2010] [error] [client 76.171.171.xxx] ModSecurity: Access denied with code 500 (phase 2). Pattern match "((alter|create|drop)[[:space:]]+(column|database|procedure|table)|delete[[:space:]]+from|update.+set.+=)" at ARGS:body. [file "/usr/local/apache/conf/modsec2.user.conf"] [line "352"] [id "300015"] [rev "1"] [msg "Generic SQL injection protection"] [severity "CRITICAL"] [hostname "www.mysite.com"] [uri "/node/181/edit"] [unique_id "@TaVDEWnlusAABQv9@oAAAAD"] and here is /usr/local/apache/conf/modsec2.user.conf (line 352) #Generic SQL sigs SecRule ARGS "((alter|create|drop)[[:space:]]+(column|database|procedure|table)|delete[[:space:]]+from|update.+set.+=)" "id:1,rev:1,severity:2,msg:'Generic SQL injection protection'" The questions I have are: What should I do to "whitelist" or allow this rule to get through? What file do I create and where? How should I alter this rule? Can I set it to only be allowed for the one domain, since it is the only one having the issue on this dedicated server or is there a better way to exclude table tags perhaps? Thanks guys

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• Event Log "Wake Source" when system wakes from sleep

  - by Doltknuckle

  So I've been troubleshooting sleep timers for our systems and have run across an interesting issue. I need a way to report how long a system was awake after a number of different inputs. Now, I've discovered that the System Log tracks wake and sleep events and even tells you the times that everything happens at. The thing is doesn't tell you is what triggered the wake event. It does give you a numerical code however. Here are some examples of what I am finding. Index : 2901 EntryType : Information InstanceId : 1 Message : The system has resumed from sleep. Sleep Time: 2010-10-01T23:20:06.097488100Z Wake Time: 2010-10-03T17:41:12.796400500Z Wake Source: 0 Category : (0) CategoryNumber : 0 Source : Microsoft-Windows-Power-Troubleshooter -- Index : 2841 EntryType : Information InstanceId : 1 Message : The system has resumed from sleep. Sleep Time: 2010-10-01T19:19:37.239789600Z Wake Time: 2010-10-01T21:28:48.921200800Z Wake Source: 4HID Keyboard Device Category : (0) CategoryNumber : 0 Source : Microsoft-Windows-Power-Troubleshooter So here's my question: Does anyone know what the different numerical codes for the "Wake Source" mean? I think "0" is a magic packet and "4" is a USB device. Does anyone have any idea if there is any documentation out there on this for Windows 7? Thanks in advance

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• Utility to LOGICALLY compare two xml files?

  - by Matthew

  Right now we are attempting to build golden configurations for our environment. One piece of software that we use relies on large XML files to contain the bulk of its configuration. We want tot ake our lab environment, catalog it as our "golden configuration" and then be able to audit against that configuration in the future. Since diff is bytewise comparison and NOT logical comparison, we can't use it to compare files in this case (XML is unordered, so it won't work). What I am looking for is something that can parse the two XML files, and compare them element by element. So far we have yet to find any utilities that can do this. OS doesn't matter, I can do it on anything where it will work. The preference is something off the shelf. Any ideas? Edit: One issue we have run into is one vendor's config files will occasionally mention the same element several times, each time with different attributes. Whatever diff utility we use would need to be able to identify either the set of attributes or identify them all as part of one element. Tall order :)

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• Rebuild Fedora 19 ISO adding Kickstart for USB install

  - by dooffas

  I am attempting to edit a Fedora 19 DVD ISO to add a kickstart file. I then need this ISO burnt to a USB stick for instillation. The error I get when booting is Warning: Could not boot. Warning: /dev/root does not exist To try and determine which part of the process is failing I have broken the process down in to separate stages. Step 1: Burn the original ISO "Fedora-19-x86_64-DVD.iso" (Available - here) to a pendrive and see if that will install. dd if=/path/to/iso of=/dev/sdc Burning this image was successful and it installed without issue. Step 2: Exctract the ISO, repackage it and burn it to a pendrive and see if that will install. PLEASE NOTE: The final command in this section has been broken down in to multiple lines for ease of reading, in fact it was run as a single command on one line. mkdir -p /mnt/linux mount -o loop /tmp/linux-install.iso /mnt/linux cd /mnt/ tar -cvf - linux | (cd /var/tmp/ && tar -xf - ) cd /var/tmp/linux xorriso -as mkisofs -R -J -V "NewFedoraImage" -o ouput/file.iso -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -isohybrid-mbr /usr/share/syslinux/isohdpfx.bin . This iso was then burnt to a pendrive as before. dd if=/path/to/iso of=/dev/sdc This ISO burnt to the pen drive with no problem and will boot. I then see the fedora options screen. After choosing either "Install Fedora 19" or "Test this media & install Fedora 19" I then receive the errors highlighted above. This means the kickstart file is not to blame, but repackaging the ISO. Is there something I am missing in the repackaging process? Any input would be great! NOTE: If it is of any help, I attempted Step 2 with an Ubuntu server ISO and the process was successful.

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• "Server Unavailable" and removed permissions on .NET sites after Windows Update

  - by tags2k

  Our company has five almost identical Windows 2003 servers with the same host, and all but one performed an automatic Windows Update last night without issue. The one that had problems, of course, was the one which hosts the majority of our sites. What the update appeared to do was cause the NETWORK user to stop having access to the .NET Framework 2.0 files, as the event log was complaining about not being able to open System.Web. This resulted in every .NET site on the server returning "Server Unavailable" as the App Domains failed to be initialise. I ran aspnet_regiis which didn't appear to fix the problem, so I ran FileMon which revealed that nobody but the Administrators group had access to any files in any of the website folders! After resetting the permissions, things appear to be fine. I was wondering if anyone had an idea of what could have caused this to go wrong? As I say, the four other servers updated without a problem. Are there any known issues involved with any of the following updates? My major suspect at the moment is the 3.5 update as all of the sites on the server are running in 3.5. Windows Server 2003 Update Rollup for ActiveX Killbits for Windows Server 2003 (KB960715) Windows Server 2003 Security Update for Internet Explorer 7 for Windows Server 2003 (KB960714) Windows Server 2003 Microsoft .NET Framework 3.5 Family Update (KB959209) x86 Windows Server 2003 Security Update for Windows Server 2003 (KB958687) Thanks for any light you can shed on this.

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• Cisco Router - Add a missing MIB file

  - by Jonathan Rioux

  I have a Cisco 881w, and I would like to setup NBAR in my NetFlow Analyzer. But it says that my router misses this MIB in order to allow NFA to poll the router with snmp to get NBAR infos. From the FAQ page of the NetFlow Analyzer website, it responds to my error: Q. I am able to issue the command "ip nbar protocol-discovery" on the router and see the results. But NFA says my router does not support NBAR, Why? A. Earlier version of IOS supports NBAR discovery only on router. So you can very well execute the command "ip nbar protocol-discovery" on the router and see the results. But NBAR Protocol Discovery MIB(CISCO-NBAR-PROTOCOL-DISCOVERY-MIB) support came only on later releases. This is needed for collecting data via SNMP. Please verify that whether your router IOS supports CISCO-NBAR-PROTOCOL-DISCOVERY-MIB. The missing MIB is: CISCO-NBAR-PROTOCOL-DISCOVERY-MIB I found it here: ftp://ftp.cisco.com/pub/mibs/v2/CISCO-NBAR-PROTOCOL-DISCOVERY-MIB.my But how can I add this MIB into the router? The IOS of my router is: c880data-universalk9-mz.151-3.T1.bin

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• How to find the cause of locked user account in Windows AD domain

  - by Stephane

  After a recent incident with Outlook, I was wondering how I would most efficiently resolve the following problem: Assume a fairly typical small to medium sized AD infrastructure: several DCs, a number of internal servers and windows clients, several services using AD and LDAP for user authentication from within the DMZ (SMTP relay, VPN, Citrix, etc.) and several internal services all relying on AD for authentication (Exchange, SQL server, file and print servers, terminal services servers). You have full access to all systems but they are a bit too numerous (counting the clients) to check individually. Now assume that, for some unknown reason, one (or more) user account gets locked out due to password lockout policy every few minutes. What would be the best way to find the service/machine responsible for this ? Assuming the infrastructure is pure, standard Windows with no additional management tool and few changes from default is there any way the process of finding the cause of such lockout could be accelerated or improved ? What could be done to improve the resilient of the system against such an account lockout DOS ? Disabling account lockout is an obvious answer but then you run into the issue of users having way to easily exploitable passwords, even with complexity enforced.

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• Private staff network within public network

  - by pianohacker

  I'm the sysadmin at a small public library. Since I got here a few years ago, I've been trying to set up the network in a secure and simple way. Security is a little tricky; the staff and patron networks need to be separated, for security reasons. Even if I further isolated the public wireless, I'd still rather not trust the security of our public computers. However, the two networks also need to communicate; even if I set up enough VMs so they didn't share any servers, they need to use the same two printers at the very least. Currently, I'm solving this with some jerry-rigged commodity equipment. The patron network, linked together by switches, has a Windows server connected to it for DNS and DHCP and a DSL modem for a gateway. Also on the patron network is the WAN side of a Linksys router. This router is the "top" of the staff network, and has the same Windows server connected on a different port, providing DNS and DHCP, and another, faster DSL modem (separate connections are very useful, especially as we heavily depend on some cloud-hosted software). tl;dr: We have a public network, and a NATed staff network within it. My question is; is this really the best way to do this? The right equipment would likely make my job easier, but anything with more than four ports and even rudimentary management quickly becomes a heavy hit on our budget. (My original question was about an ungodly frustrating DHCP routing issue, but I thought I'd ask whether my network was broken rather than asking about the DHCP problem and being told my network was broken.)

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• Fedora 12 on Vmware network disabled on restore

  - by Chaitanya

  I have a fedora 12 guest running on VMWare on windows 7. I use it mainly for the occasional linux dev. Whenever I restart the guest, networking works fine. But if I close the VMware player and save state, the next time I start the image, networking is disabled (red x on the network icon. message saying networking disabled). I can't seem to find a way to restore networking. I have to reboot the guest to get my network access back again. My Ubuntu image doesn't have this problem. I can close the player and when I re run the image, I can pick up where I left off, with all the open firefox windows and application windows as I left them. Fedora saves state, but doesn't seem to enable networking. There is a relevant warning I have seen "SELinux is preventing /sbin/ifconfig "read" access to/var/run/vmware-active-nics." But I am not sure how to solve it. I know fedora isn't officially supported by VMware, but it seems to be working fine for the most part and meeting my needs, except for this one little issue. Any help would be much appreciated.

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• switching dns server providers

  - by Yoav Aner

  I'm trying to wrap my head around something that I thought I kinda understood, but clearly there's some piece missing. We're currently using Zerigo as our primary dns, with slave dns running on linode. This works quite well. However, recent DDOS attacks on zerigo meant that whilst dns queries were still resolved, we were unable to make any dns changes. Since we rely on dns changes on our own infrastructure, I'm looking to improve this somehow. I'd rather not ditch zerigo completely, and realise that this or similar problems can happen with ANY primary dns hosting provider. It might not be DDOS, but a bug on their server, or something that means we can no longer issue updates. For this I want to have some fallback option: a completely independent (primary) dns provider (maybe AWS), which we will keep in-sync manually. We will switch-over to it when there's a problem. This brings me to my question: How do I make sure we can switch those providers quickly enough? specifically, on our registrar, there's a list of name servers, but no settings like TTL etc. How do dns clients know to use the newly updated name server records? Is this configured in the SOA? However, the SOA itself is hosted with the dns provider and we might not be able to update it... This is not a question about a one-time move, which can be planned and scheduled and tested, but rather to be able to do so when things are half-broken.

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