Search Results

Search found 11990 results on 480 pages for 'non deterministic'.

Page 355/480 | < Previous Page | 351 352 353 354 355 356 357 358 359 360 361 362  | Next Page >

• Server 2012, Jumbo Frames - should I expect problems?

  - by TomTom

  Ok, this sound might stupid - but is there any negative on just enabling jumbo frames in practice? From what I understand: Any switch or ethernet adapter that sees a jumbo frame it can not handle will just drop it. TCP is not a problem as max frame size is negotiated in the setinuo phase. UCP is a theoretical problem as a server may just send a LARGE UDP packet that gets dropped on the way. Practically though, as UDP is packet based, I do not really think any software WOULD send a UDP packet larger than 1500 bytes net without app level configuration changes - at least this is how I do my programming, as it is quite hard to get a decent MTU size for that without testing yourself, so you fall back in programming to max 1500 packets. The network in question is a standard small business network - we upgraded now from a non managed 24 port switch to a 52 port switch with 4 10g ports (netgear - quite cheap) and will mov a file server to 10g for also ISCSI serving. All my equipment on the Ethernet level can handle minimum 9000 bytes and due to local firewalls I really want to get packets larger (less firewall processing), but the network is also NAT'ed to the internet. On top, different machines move around (download) large files (multi gigabyte area) quite often for processing. The question is - can I expect problems when I just enable jumbo frames? Again, this is not totally ignorance - I just don't see programs sending more than 1500 byte UDP packets (if that is a practical problem please tell me) and for TCP the MTU is negotiated anyway. if there is a problem I can move to a dedicated VLAN, but this has it's own shares of problems as basically most workstations must then be on both VLAN's.

  Read the article

• Unable to specify parameters to cvlc in a script

  - by VxJasonxV

  I'm creating a script that issues a few curl commands in order to access a time-protected mms stream link, then set up a relay using cvlc (vlc's command line interface) for my own use on an unencumbered player. The curl aspect of this is working, as I can run as a browser and curl side by side and get the same access url. (It's time locked meaning the stream will work forever, but you have to connect quickly or the URL will time out.) The very end of the script prints the command I will run, which is then followed up by "exec $CMD". When I echo $CMD I get: cvlc --sout '#standard{access=http,mux=asf,dst=0.0.0.0:58194}' mms://[...] Manually Copy/Pasting this command in, verbatim, works perfectly fine, but as part of a script, the cvlc execution output says: [0x9743d0] main interface error: no suitable interface module [0x962120] main libvlc error: interface "globalhotkeys,none" initialization failed [0x9743d0] dummy interface: using the dummy interface module... [0xb16e30] stream_out_standard stream out error: no mux specified or found by extension [0xb16ad0] main stream output error: stream chain failed for `standard{mux="",access="",dst="'#standard{access=http,mux=asf,dst=0.0.0.0:58194}'"}' [0xb11cd0] main input error: cannot start stream output instance, aborting [0xb11f70] signals interface error: Caught Interrupt signal, exiting... Why is --sout behaving one way in a script (non-interactive shell?) vs. another way in the foreground (interactive shell) ?

  Read the article

• Annoying trackpad freeze on MacBook [solved]

  - by Hafthor

  NOTE: Question marked answered because it was forced after being put up for bounty. Actual solution was to have Apple repair it. Trackpad usually works, but sometimes stops responding for around 5 seconds and then suddenly starts working again. Seems to happen when I switch between typing and moving + button-clicking and also when I do a lot of double-clicking. Tried turning off the "Ignore accidental trackpad input". Apple replaced the keyboard/mouse under warranty. Problem remains. Any ideas? Edit: White non-unibody Late-2008 13" MacBook - fully up-to-date OS. Doesn't seem to matter if it is plugged in or not. Edit: Updated to Snow Leopard - seems to have made it worse. Edit: Applying even a little pressure to the left palm rest creates this condition. Apple replaced the top case again and this time it seems to have fixed it. Although, it looks like they may have added a spacer on the left palm rest to "fix" it.

  Read the article

• IIS crashes with unhandled exception in ASP.NET

  - by SnowCrash

  We had an issue recently with an unhandled exception in an ASP.NET C# application bringing down IIS and all application pools that it was hosting. IIS Manager was unable to restart or stop/start the service and I was unable start IIS again after killing w3wp.exe in the task manager. A system reboot restored IIS to a running state; as a primarily Linux admin, I generally consider an unplanned system reboot to resolve a software error to be an act of high heresy. Is there a way to "harden" IIS so that a faulting application does not affect anything but the request that exposes the fault? Some details on the server and application fault. IIS: 7.5 .NET: 4.0 Windows Server 2008 R2 Faulted on call to System.Net.Dns.Resolve() with a url pointing to a non-existant domain as the argument. (I'm aware that this method is deprecated but the point that a page code issue shouldn't bring down the server still stands) The exception generated was SocketException. The faulting module according to event viewer was KERNELBASE.dll The issue was resolved by wrapping the call in a try-catch, logging the exception and displaying some generic content on the page. I'm hoping that I missed something in the IIS config that would switch it to "production" mode or something.

  Read the article

• Installing Windows 7 over PXE, preferably with domain autojoin

  - by Ivan Vucica

  At an educational non-profit, I've inherited a previously set-up Windows domain that, after the first reinstall of the machines, we ended up not using by simply not joining machines back into the domain. Over last summer, before the annual reinstall for shipping machines to the summer school, I toyed with the idea of installing Windows 7 over network, instead of just imaging the machines. It took a bit longer than I expected to figure out the basics; honestly, I expected that Windows would be more friendly for PXE installation out of the box. What I'm interested in is best practices for installing Windows 7 over PXE with domain autojoin. I'd love it if the whole setup could optionally be hosted on a UNIX based system as well. I've had some success by preparing an ISO using Windows Deployment Kit, and loading the ISO into memory. This was needed since I wanted a menu, and I think I couldn't get PXELINUX to chainload into Windows' bootloader. Unfortunately, I couldn't figure out much about customization of the Windows setup in that timeframe nor could I get Samba to work properly; studying the stuff ended up being too lengthy, especially the portion where I edited a disk image on Windows and copied it outside. WDK didn't make things easier by mounting the disk image into RAM, and writing it in its entirety when done with it, making me a very sad boy. I've recently found a different approach, too, that appears to be closer to Microsoft's original idea for netboot deployment and does not involve ISOs. So my question boils down to the following. What exact approach do you use for netbooting Windows 7 setup? How can Windows 7 setup be best customized to be completely unattended, including installation on specific system partition and not destroying the data partition, creation of passworded admin and default user, choice of MAC-address-based hostname, and joining a domain? As much details as possible for everyone's future reference would be appreciated. WDS isn't a bad choice, but if a Linux-based install can be used, that'd be better.

  Read the article

• How can I copy a VMware Fusion virtual machine to a FAT32 partition?

  - by Michael Prescott

  I created the virtual machine on a host running OS X. I then moved the machine to a FAT32 partition on an external drive. It moved the first time without error. Then I moved it from the external drive to a host running Ubuntu 9.10. I had to move to a FAT32 partition first because Ubuntu doesn't recognize Mac OS Extended partitions on the drive. So, the virtual machine (vm) ran on the ubuntu host for a while and then I moved it back to the FAT32 partition and from there back to the OS X host. I worked on the vm for a while on the OS X host and then attempted to move it back to the FAT32 partition. I get the following system error: The Finder can’t complete the operation because some data in “my-virtual-machine” can’t be read or written. (Error code -36) Interestingly, I can move the file to another OS X partition, just not FAT32. I also perused VMware's forums and found advice to set permissions on all files and folders to 777. I did this, but have had no success. I notice the the files within the vm package are 777 now, but there is an extended attributes symbol on their permission details "rwxrwxrwx@" Since I can copy the vm between OS X partitions, but not to non OS X partitions, and all files and folders withing the vm package and the package itself have permissions of 777, I speculate that the "@" is the problem. How can I remove the "@" or is there something else I need to modify to allow me to copy/move the vm to other hosts?

  Read the article

• Which is more secure: Tomcat standalone or Tomcat behind Apache?

  - by NoozNooz42

  This question is not about performance, nor about load-balancing, etc. Which would be more secure: running Tomcat in standalone mode or running Tomcat behind apache? The thing is, Tomcat is written in Java and hence it is pretty much immune to buffer overrun/overflow (unless a buffer overrun in a C-written lib used by Tomcat can be triggered, but they're rare [the last I remember was in zlib, many many moons ago] and one heck of a hack to actually exploit), which gets rid of a lot of potential exploits. This page: http://wiki.apache.org/tomcat/FAQ/Security has this to say: There have been no public cases of damage done to a company, organization, or individual due to a Tomcat security issue... there have been only theoretical vulnerabilities found. All of those were addressed even though there were no documented cases of actual exploitation of these vulnerabilities. This, combined with the fact that buffer overrun/overflow are pretty much non-existent in Java, makes me believe that Tomcat in standalone mode is pretty secure. In addition to that, I can install both Java and Tomcat on Linux without needing to be root. The only moment I need to be root is to set up a transparent port 8080 to port 80 forwarding (and 8443 to 443). Two iptables line as root, that's all root is needed for. (I don't know for Apache). Apache is much more used than Tomcat and definitely does not have a security track record as good as Tomcat. What would make Tomcat + Apache more secure? What would make Tomcat + Apache less secure? In short: which is more secure, Tomcat standalone or Tomcat with Apache? (remembering that performance aren't an issue here)

  Read the article

• How to avoid ugly dithering when running KDE over VNC?

  - by Chris Jester-Young

  I'm currently setting up a new Xen paravirt domain running KDE (4.2.2, from Kubuntu 9.04). As I have been unable to get the virtual framebuffer working in it, I've decided to set up VNC (from the vnc4server package), and run KDE over Xvnc. This is all fine and good, and KDE starts up okay. However, all the colours look dithered, especially on the task bar and title bar, making them impossible to see. From my web searches, it appears to be because these items are drawn using Porter-Duff. This is especially the case when using the Oxygen style, and Oxygen and Ozone window titlebars (selecting these styles generates messages about Porter-Duff being unavailable); not using those styles at least makes most of the UI widgets and window titles usable again. But this doesn't solve the problem for the task bar, nor for the desktop, where the only theme available to me is Oxygen (this is under the "Desktop Settings - Plasma Workspace" window, just for reference). So, unless I have a way to use a non-Porter-Duff theme for those, it seems that KDE would still be unusable under VNC. So if someone experienced with KDE can advise on how to work around, or even fix, these issues, I'd appreciate it very much. :-)

  Read the article

• Windows and file system abstraction - how much does it matter where something comes from?

  - by deceze

  I have come across the following phenomenon and would like to know how leaky Windows' file system abstraction is or if there's something else involved. I partitioned the hard disk of my MacBook Pro and installed Windows 7 (64 bit). The Bootcamp driver package includes file system drivers (right term?) that enable Windows to access the Mac OS HFS+ partition. AFAIK it's a read-only access, but it works. Now, I have some disk images of stuff I usually install, so I grabbed a copy of Daemon Tools to mount them. When I mount an image saved on the HFS+ partition, about two out of three installers on these disks (usually InstallShield) crash with all sorts of weird errors. Most are just gibberish that lead to all sorts of non-solutions on Google, one was "This application is not the right type for your computer, check if you need 32 or 64 bit versions." When moving the image files to another Windows 7 computer on the network and mounting them from the network share, they work fine. My question now is, why do applications behave differently depending on whether the read-only image file, which should be abstracted away through the read-only virtual Daemon Tools drive, is located on a read-only HFS+ partition or on a Windows network share? And I'll just roll this into the question as well since I was wondering: Does the file system of a network share matter? Does the client system need to understand the file system of the share host or is that abstracted away in SMB?

  Read the article

• Route through site-to-site VPN not working

  - by Jonathan

  I'm trying to set up a site-to-site VPN using RRAS on two 2K8r2 servers since yesterday. The connection is working at this point, but I can't get it to send traffic from one site to the other one. Set up: the set up is the same on both sites: the server is connected to a router that's connected to a modem. The routers act like a DHCP-server and assign IP addresses from the range subnet.21-subnet-.100. Both servers use a static IP address, subnet.11, and are set up as DMZ. Configuration: the servers are configured using the wizard to set up a site-to-site connection. This works with a demand-dial interface and a PPTP VPN connection. As mentioned, the VPN connection work properly. Problem: I can't get the servers to send the traffic for the other site, to be sent through the VPN connection. I added a static route on both server (home, office 1) and I can see the result in the IP routing table (home, office 1). I did this because the route didn't show up automatically. My guess is that this last step isn't right, for example because the routing table states "non demand-dial", which seems not correct. Home: Subnet: 10.0.1.0/24 Router: 10.0.1.1 Server: 10.0.1.11 (DMZ) DHCP: 10.0.1.21-10.0.1.100 RRAS DHCP: 10.0.1.101-10.0.1.150 Office 1: Subnet: 10.0.2.0/24 Router: 10.0.2.1 Server: 10.0.2.11 (DMZ) DHCP: 10.0.2.21-10.0.2.100 RRAS DHCP: 10.0.2.101-10.0.2.150 I hope someone has an idea to get this route working!

  Read the article

• How to auto mark tape as free in DPM 2012?

  - by Massimo

  I have a backup server running System Center Data Protection Manager 2012, connected to a couple of tape drives (no library). I also have, of course, some tapes. Tape rotation is manual. The tape have been used before, by DPM itself (but the server has been completely rebuilt) and by other backup softwares; they are not emtpy. But they contain no data that DPM knows and/or wants to preserve, so they can be marked as free without having to run forcefreetape.ps1. When a tape is placed into the drive, it is required to perform an inventory, have it recognized as an imported tape and then mark it as free; otherwise DPM will simply refuse to use it. How can I tell DPM to automatically treat those imported tapes as free? And, of course, I do not want to reuse real backup tapes if by chance they get put into the drives before their expiration date, so the solution should mark imported tapes as free, but should not do the same with real, non-expired tapes.

  Read the article

• Connect Chrome to TOR

  - by Jack M

  I'm having difficulty connecting Chrome to TOR. I started trying yesterday. I started Vidalia and the TOR Browser and then followed the advice at http://lifehacker.com/5614732/create-a-tor-button-in-chrome-for-on+demand-anonymous-browsing - downloading Proxy Switchy and setting it up as stated. This resulted in Error 130 (net::ERR_PROXY_CONNECTION_FAILED) (in Chrome, when I tried to load a webpage). So I looked into Vidalia's settings and noticed that it appeared to be using port 9051, so I set that instead of 8118 as everyone on the internet seems to be suggesting. Then I got a new error: Error 111 (net::ERR_TUNNEL_CONNECTION_FAILED). Digging a bit, I found that Tor should be set as a SOCKS proxy, not an HTTP proxy, so I unticked "use same settings for all protocols" in Proxy Switchy and just set localhost:9051 for SOCKS. That got me Error 7 (net::ERR_TIMED_OUT). And that's when I came here for help. I typed up the above question, but then at the last minute decided to do a bit more reading and found someone here suggested using some command line arguments via a Windows shortcut: "C:\snip\chrome.exe" --proxy-server=";socks=127.0.0.1:9051;sock4=127.0.0.1:9051;sock5=127.0.0.1:9051" --incognito check.torproject.org And that worked perfectly. Yesterday. Today it doesn't, so I'm having to post this question after all. check.torproject.org gives me a "no" with Chrome, but a "yes" with the default Tor Browser. I tried closing Chrome and restarting it (yes, with the correct shortcut) after Vidalia started, but still nothing. The port number hasn't changed or anything. What gives? EDIT: I realized I had a "non tor" instance of Chrome running and that possibly the was causing the command line args t be ignored when I started the new instance. Closed all instances of chrome and ran my Chrome Tor shortcut, and it did get rid of the "not using Tor" message -- because I got another Time Out error instead. Vidalia's bandwidth graph didn't even blink.

  Read the article

• need advice on data center move, communication with both facilities during transition

  - by Brian Roden

  We are beginning the process of moving to a new facility. Office and warehouse operations will both be moving, and we must get shipping operations up and running at the new location while continuing to ship from the old location. Our contract with some third-party warehouse tenants requires two business day turnaround (only weekends and holidays excluded), so we can't have major downtime during the move. We would like to keep our 172.16.60/61.xxx internal address space in use throughout the move. Is it possible to keep using this same internal range, and have our existing WatchGuard Firebox 520 and whatever router we get for the other location (preferably the same model) just treat both locations as one network, leaving our host IPs the same throughout the move? Renumbering the servers when they move isn't a big deal, but our wireless terminals for order picking in the warehouse have fixed IPs (and a fixed IP, non-DNS reference to the host they speak with) and would be a massive undertaking to reconfigure when the servers move (each device would have to be reconfigured at least 2 times -- some when we start using them in the new building and the host is still here, all of them in both locations when the host moves to the new building, and the rest when they finally make the move to the new building). We're trying to avoid that if possible.

  Read the article

• nginx config woes for multiple subdomains & domains

  - by Peter Hanneman

  I'm finally moving away from Apache and I've got the latest development version of nginx running on a fully updated Ubuntu 10.04 VPS. I've got a single dedicated IP for the box (1.2.3.4) but I've got two separate domains pointing to the server: www.example1.com and www.example2.net. I would like to map the fallowing relationships between urls and document roots in the config: www.example1.com / example1.com -> /var/www/pub/example1.com/ subdomain.example1.com -> /var/www/dev/subdomain/example1.com/ www.example2.net / example2.net -> /var/www/pub/example2.net/ subdomain.example2.net -> /var/www/dev/subdomain/example2.net/ Where the name of the requested subdomain is a folder under /var/www/dev/. Ideally a request for a non-existent subdomain(no matching folder found) would result in a rewrite to the public site (eg: invalid.example1.com -- www.example1.com) however a mere "404 Not Found" wouldn't be the worst thing in the world. It would also be nice if I didn't need to modify the config every time I mkdir a new subdomain folder - even better if I don't need to edit it for a new domain either...but now I'm getting greedy... :p Although in my defense Apache did all of this with a single directive. Does anyone know how I can efficiently mimic this behavior in nginx? Thanks in advance, Peter Hanneman

  Read the article

• GNU screen cannot find terminfo entry on HP-UX

  - by Ency

  I am trying to make screen work on HP-UX B.11.23 U ia64 0308561483 unlimited-user license. Please notice I do not have root access. I have already compiled screen successfully, configured with LIBS=-lcurses. When I try to start screen it wrotes Cannot find terminfo entry for 'xterm'. But there ARE terminfos for the terminal type in screen-4.0.3> ls -a /usr/share/lib/terminfo/x/ . .. x-hpterm x1700 x1720 x1750 xitex xl83 xterm xterms I thing the problem may be there are in non-standard path, because according to man page standard path is /usr/lib/terminfo/?/* What I tried: But as I said I do not have root access so cant make symlink, anyway I tried run screen with filled TERMINFO_DIRS (TERMINFO_DIRS=/usr/share/lib/terminfo/x/ ./screen and TERMINFO_DIRS=/usr/share/lib/terminfo/ ./screen) but none of them work - same error. Change TERM to different values - same error Cannot find terminfo entry for <WHATEVER WHAT WAS IN TERM VAR>. Put something into screenrc and run ./screen -c screenrc screen-4.0.3> cat screenrc attrcolor b ".I" term xterm termcap xterm* LP:hs@ termcapinfo xterm 'Co#256:AB=\E[48;5;%dm:AF=\E[38;5;%dm' defbce "on" But no luck so far, have you got any suggestions? Need some additional information, let me know.

  Read the article

• Backup script to FTP with timed subfolders

  - by Frederik Nielsen

  I want to make a backup script, that makes a .tar.gz of a folder I define, say fx /root/tekkit/world This .tar.gz file should then be uploaded to a FTP server, named by the time it was uploaded, for example: 07-10-2012-13-00.tar.gz How should such backup script be written? I already figured out the .tar.gz part - just need the naming and the uploading to FTP. I know that FTP is not the most secure way to do it, but as it is non-sensitive data, and FTP is the only option I have, it will do. Edit: I ended up with this script: #!/bin/bash # have some path predefined for backup unless one is provided as first argument BACKUP_DIR="/root/tekkit/world/" TMP_DIR="/tmp/tekkitbackup/" FINISH_DIR="/tmp/tekkitfinished/" # construct name for our archive TIME=$(date +%d-%m-%Y-%H-%M) if [ $1 ]; then BACKUP_DIR="$1" fi echo "Backing up dir ... $BACKUP_DIR" mkdir $TMP_DIR cp -R $BACKUP_DIR $TMP_DIR cd $FINISH_DIR tar czvfp tekkit-$TIME.tar.gz -C $TMP_DIR . # create upload script for lftp cat <<EOF> lftp.upload.script open server user user password lcd $FINISH_DIR mput tekkit-$TIME.tar.gz exit EOF # start backup using lftp and script we created; if all went well print simple message and clean up lftp -f lftp.upload.script && ( echo Upload successfull ; rm lftp.upload.script )

  Read the article

• Maintaining "Portability" Between Linux and Windows 7

  - by lokheart

  I am using the following ways in my office's Windows 7 machine to maintain my "portabilibity" when disaster strikes and I need to switch computer while I have no luxury of time for reinstalling all my program to the new PC. a majority of programs I used are portable, mostly from portableapp.com, like notepad+, GIMP, even R, I extract them and store them in a folder in My document, in a structure similar to the default portableapp installation when they are installed to a thumbdrive only a few software that portable version is not available and I will install them as usual all of my working files are stored in a folder in My document I regularly backup them all using syncback, because this program can keep versioning of my backup, and the backup is stored in a portable drive. One day I need to switch my computer and the operation is relative simple for me: I just move the two folders mentioned above into the my document folder of the new PC, install those few "non-portable" program in it, and this is almost done, some minor hiccups can be solved by reinstalling the portableapp into the drive. Overall speaking it is a smooth process. I would like to maintain the same degree of "portability" in my home Linux desktop (Ubuntu or Mint, I'm still deciding), that is, if my Linux crash and I need to reinstall it again. All I need to do is the move the two folder back to the new Linux, and most of my work will be almost ready to be worked on again. But I don't know how to find a Linux-alternative of portableapps. Being a newer to Linux, can anyone tell me whether this is possible in Linux?

  Read the article

• Why isn't 'Low Fragmentation Heap' LFH enabled by default on Windows Server 2003?

  - by James Wiseman

  I've been investigating an issue with a production Classic ASP website running on IIS6 which seems indicative of memory fragmentation. One of the suggestions of how to ameliorate this came from Stackoverflow: How can I find why some classic asp pages randomly take a real long time to execute?. It suggested flipping a setting in the site's global.asa file to 'turn on' Low Fragmentation Heap (LFH). The following code (with a registered version of the accompanying DLL) did the trick. Set LFHObj=CreateObject("TURNONLFH.ObjTurnOnLFH") LFHObj.TurnOnLFH() application("TurnOnLFHResult")=CStr(LFHObj.TurnOnLFHResult) (Really the code isn't that important to the question). An author of a linked post reported a seemingly magic resolution to this issue, and, reading around a little more, I discovered that this setting is enabled by default on Windows Server 2008. So, naturally, this left me a little concerned: Why is this setting not enabled by default on 2003, or If it works in 2008 why have Microsoft not issued a patch to enable it by default on 2003? I suspect the answer to the above is the same for both (if there is one). Obviously, we're testing it in a non-production environment, and doing an array of metrics and comparisons to deem if it does help us. But aside from this I'm really just trying to understand if there's any technical reason why we should do this, or if there are any gotchas that we need to be aware of.

  Read the article

• Windows Domain Chaos - Any Solving Approach

  - by Chake

  we are running an old Window 2003 Server as Domain Controller (DC2003). To safely migrate to Windows 2008 R2 we added a 2008 R2 (DC2008R2) to the domain as domain controller (adprep etc.). After dcpromo on DC2008R2 everything seemed to be ok. The new DC appeared under the "Domain Controlelrs" node. It wasn't checked at this time, if DC2008R2 can REALLY act as domain controller. Later we tried to shutdown DC2003 and ran into a total mess with non functional Exchange and Team Foundation Services. After that I got the job to fix... First i thought it could be an Problem with DC2008R2. So I removed it as Domain Controller and installed a new Windows 2008 R8 Server DC2008R2-2. I ran into similar Problems. I tried a bunch of stuff, but nothign helped. I won't list it, maybe I made an mistake, so I'm willing to redo it with your suggestions. To have a starting point I tried the best practise analyser whicht ended up with 24 "Compatible" and 26 "Not Compatible" tests. From these 26 tests 19 read the same. (I'm translating from german, so that may to be the exact wording) Problem: Using the Best Practise Analyser for Active Directory Domain Services (Active Directory Domain Services Best Practices Analyzer, AD DS BPA) no data can be be gathered using the name of the forest and the domain controller DC2008R2-2. I appreciate any suggestions, this really bothers me.

  Read the article

• Time sync fails on Hyper-V VM, but succeeds when I log in as a domain user

  - by Richard Beier

  We have a Windows Server 2003 SP2 VM running on Hyper-V (Server 2008 R2 host). The VM has Hyper-V time synchronization enabled. I noticed that the time on the VM was fast by around 25 minutes. I saw the following in the event log: The time provider NtpClient is configured to acquire time from one or more time sources, however none of the sources are currently accessible. No attempt to contact a source will be made for 15 minutes. NtpClient has no source of accurate time. The time provider NtpClient cannot reach or is currently receiving invalid time data from ourdc.ourdomain.local (ntp.d|192.168.2.18:123-192.168.2.2:123). Time Provider NtpClient: No valid response has been received from domain controller ourdc.ourdomain.local after 8 attempts to contact it. This domain controller will be discarded as a time source and NtpClient will attempt to discover a new domain controller from which to synchronize. I had been logged in as a local user. (We have an old app that runs on this VM - it requires a user to be logged in at all times, and we use a non-domain user account for this.) When I logged in as a domain user, the clock almost immediately corrected itself. Running "w32tm /monitor" and "net time" as the domain user showed no errors, and indicated that our domain controller was the time source. Does anyone know what might cause this, and why logging in under a domain account fixes the problem? I'm wondering if the time will start to drift again. Thanks for your help, Richard

  Read the article

• Is it worth hiring a hacker to perform some penetration testing on my servers ?

  - by Brann

  I'm working in a small IT company with paranoid clients, so security has always been an important consideration to us ; In the past, we've already mandated two penetration testing from independent companies specialized in this area (Dionach and GSS). We've also ran some automated penetration tests using Nessus. Those two auditors were given a lot of insider information, and found almost nothing* ... While it feels comfortable to think our system is perfectly sure (and it was surely comfortable to show those reports to our clients when they performed their due diligence work), I've got a hard time believing that we've achieved a perfectly sure system, especially considering that we have no security specialist in our company (Security has always been a concern, and we're completely paranoid, which helps, but that's far as it goes!) If hackers can hack into companies that probably employ at least a few people whose sole task is to ensure their data stays private, surely they could hack into our small business, right ? Does someone have any experience in hiring an "ethical hacker"? How to find one? How much would it cost? *The only recommendation they made us was to upgrade our remote desktop protocols on two windows servers, which they were able to access because we gave them the correct non-standard port and whitelisted their IP

  Read the article

• Conditionally Rewrite Email Headers (From & Reply-To) Exchange 2010

  - by NorthVandea

  I have a client who maintains Company A (with email addresses %username%@companyA.com) and they own the domain companyB.com however there is no "infrastructure" (no Exchange server) set up specifically for companyB.com. My client needs to be able to have the end users within it's company (companyA.com) add a specific word or phrase to the Subject (or Body) line of the Outgoing email (they are only concerned with outgoing, incoming is a non-issue in this case) that triggers the Exchange 2010 servers to rewrite the header From and Reply-To [email protected] with [email protected] but this re-write should ONLY occur if the user places the key word/phrase in the Subject (or Body). I have attempted using Transport Rules and the New-AddressRewriteEntry cmdlet however each seems to have a limitation. From what I can tell Transport Rules cannot re-write the From/Reply-To fields and New-AddressRewriteEntry cannot be conditionally triggered based on message content. So to recap: User sends email outside the organization: From and Reply-To remain [email protected] User sends email outside the organization WITH "KeyWord" in the Subject or Body: From and Reply-To change to [email protected] automatically. Anyone know how this could be done WITHOUT coding a new Mail Agent? I don't have the programming knowledge to code a custom Agent... I can use any function of Exchange Management Shell or Console. Alternatively if anyone knows of a simple add-on program that could do this that would be good too. Any help would be greatly appreciated! Thank you!!!

  Read the article

• Can't seem to stop Postfix backscatter

  - by Ian

  I've just migrated to a Postfix system and can't seem to stop the backscatter messages to unknown addresses on the site. I have a file, validrcpt, that lists all the valid emails on the site - about eight of them. Yet when a message is sent to a non-existent address, instead of just dropping it, postfix is replying with a "Recipient address rejected: User unknown in virtual mailbox table" email. Do I have something set wrong? I've read http://www.postfix.org/BACKSCATTER_README.html but unless I'm caffeine deficient, I don't see what's happening and perhaps I'm just to used to my old qmail setup. Here's postconf -n: alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases append_dot_mydomain = no biff = no broken_sasl_auth_clients = yes config_directory = /etc/postfix content_filter = smtp-amavis:[127.0.0.1]:10024 home_mailbox = Maildir/ inet_interfaces = all inet_protocols = ipv4 local_recipient_maps = hash:/etc/postfix/validrcpt mailbox_command = /usr/lib/dovecot/deliver -c /etc/dovecot/dovecot.conf -m "${EXTENSION}" mailbox_size_limit = 0 mydestination = localhost myhostname = localhost mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 myorigin = /etc/mailname policy-spf_time_limit = 3600s readme_directory = no recipient_bcc_maps = hash:/etc/postfix/recipient_bcc recipient_delimiter = + relay_recipient_maps = hash:/etc/postfix/relay_recipients relayhost = smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtp_use_tls = yes smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination,check_policy_service unix:private/policy-spf,reject_rbl_client zen.spamhaus.org,reject_rbl_client bl.spamcop.net,reject_rbl_client cbl.abuseat.org,check_policy_service inet:127.0.0.1:10023 smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_authenticated_header = yes smtpd_sasl_local_domain = $myhostname smtpd_sasl_path = private/dovecot-auth smtpd_sasl_security_options = noanonymous smtpd_sasl_type = dovecot smtpd_sender_restrictions = reject_unknown_sender_domain smtpd_tls_auth_only = yes smtpd_tls_cert_file = /etc/dovecot/dovecot.pem smtpd_tls_key_file = /etc/dovecot/private/dovecot.pem smtpd_tls_mandatory_ciphers = medium smtpd_tls_mandatory_protocols = SSLv3, TLSv1 smtpd_tls_received_header = yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtpd_use_tls = yes tls_random_source = dev:/dev/urandom virtual_gid_maps = static:5000 virtual_mailbox_base = /home/vmail virtual_mailbox_domains = digitalhit.com virtual_mailbox_maps = hash:/etc/postfix/vmaps virtual_minimum_uid = 1000 virtual_uid_maps = static:5000

  Read the article

• Simulating audio playback on headless linux server

  - by afro

  Hi people, We have a headless linux server (Debian 5) we use for runnin integration tests of our web-page code. Among these tests are ones implemented using Selenium, which practically simulates a user browsing our pages and clicking on things. One of these tests is failing now, because it involves starting a flash-based audio player and checking to see whether the progress bar gets displayed properly. The reason this test fails is that there is no way to play the audio, and no sound card on the machine, which has simple webserver hardware. So, my question would be: Is there a simple way of giving a program the impression that its audio output is being processed, and playback is taking place? I don't have to record the playback, or redirect it or anything like that, just a dummy soundcard, like the dummy X-server we aer using, which actually does not need to display stuff. I have tried using JACK, but it's too complicated, and the documentation does not even answer this very simple question. I also installed alsa on the server; it 'pretends' to run, but when a program tries to play audio, just spews error and debug information having to do with the non-existence of a soundcard. It would be really awesome if one of you has a simple answer to this question. Cheers, Ulas

  Read the article

• How to move or delete files from a folder containing 2 million files on an NTFS drive?

  - by Beau

  The issue is that any modification to the directory locks up Explorer indefinitely, though Samba access to other directories still works. I've tried moving files locally and over Samba. Even enumerating the directory to get the list of files locks up the computer indefinitely. I tried using Python's win32file.FindFilesIterator to iterate the files but that also hangs. My idea was to move each file to a different directory (in a directory above the directory we're dealing with) based on its timestamp, so that we'd have at most a thousand or so files in each directory... But since I can't even enumerate the files, that's been a non-starter. If I have to give up and just nuke the directory I'm willing to do that, but a standard delete also hangs indefinitely. I have set these two parameters to increase speed and they also did not help the issue: R:\>fsutil behavior query disablelastaccess disablelastaccess = 1 R:\>fsutil behavior query disable8dot3 disable8dot3 = 1 These are all sequential images that would have run into the 'bug' with 8.3 filenames whereby many similarly named files in one directory can take a long time to compute 8.3 filenames. From what I understand this data is stored in the file system even after disable8dot3 is enabled, so it may still be contributing to the problem. Any ideas?

  Read the article

< Previous Page | 351 352 353 354 355 356 357 358 359 360 361 362  | Next Page >