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  • Zimbra MTA settings

    - by user192702
    Hi have some questions for Zimbra v8.0.6GA. Under Configure - MTA - Network, I'm seeing a few settings and am not very clear what to do with them. Web mail MTA Host name Is this for delivering local mail only (ie not for external mails)? According to this link, it says the following. That's a mouthful but what is "composed messages"? Is this for a multi server deployment where the Postfix server for Zimbra isn't installed on the same box that as the rest of the servers? Webmail MTA is used by the Zimbra server for composed messages and must be the location of the Postfix server in the Zimbra MTA. Relay MTA for external delivery My understanding after reading the doc is that if my ISP doesn't force me to relay outgoing mails through them, and I have enabled DNS lookup, I can leave this blank? Inbound SMTP host name Sorry I know this is explained as "If your MX records point to a spam-relay or any other external non-Zimbra server, enter the name of that server in the Inbound SMTP host name field." but I'm not following. Can someone provide an example? MTA Trusted Networks The admin doc says "To set up MTA trusted networks on a per server basis, make sure that MTA trusted networks have been set up as global settings and then go the Configure Servers MTA page and in the MTA Trusted Networks field enter the trusted network addresses for the server." However I see out of the box it has default networks setup for the server whereas on a global level it's blank. Does this mean there is a bug with the install software and I have to copy the setting from the server to the global setting?

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  • What can cause an increase in inactive memory and how to reclaim it?

    - by Boaz
    I have heavy application running on a CentOS server and I'm seeing a strange memory behavior. Here is a snapshot of a munin graph: As you can see the amount of committed memory increases gradually causing the swap file to be use. What strikes me odd is that the amount of inactive memory keeps growing as well. It is my understanding that the inactive memory is actually memory freed up but not yet clean by the OS and put back in the free memory pool. It seems that running out of memory is acutally caused by this lack of clean up, but I may be wrong. Can you give some tips to find the cause of the problem and/or cause CentOS to reclaim the inactive memory? Thanks. Some extra info: 1) I have a tmpfs mounted on /tmp and the number of files stored there grows (but it is double the amount of the inactive memory). 2) cat /proc/meminfo (at a later stage than the image) gives: MemTotal: 14371428 kB MemFree: 1207108 kB Buffers: 35440 kB Cached: 4276628 kB SwapCached: 785316 kB Active: 9038924 kB Inactive: 3902876 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 14371428 kB LowFree: 1207108 kB SwapTotal: 10223608 kB SwapFree: 6438320 kB Dirty: 627792 kB Writeback: 0 kB AnonPages: 7844560 kB Mapped: 49304 kB Slab: 146676 kB PageTables: 27480 kB NFS_Unstable: 0 kB Bounce: 0 kB CommitLimit: 17409320 kB Committed_AS: 16471488 kB VmallocTotal: 34359738367 kB VmallocUsed: 275852 kB VmallocChunk: 34359462007 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 Hugepagesize: 2048 kB 3) The application is a combination of MySQL, Heritrix (http://crawler.archive.org/ ) and a Tomcat based Java servlet to manage things.

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  • What can cause an increase in inactive memory and how to reclaim it?

    - by Boaz
    Hi All, I have heavy application running on a CentOS server and I'm seeing a strange memory behavior. Here is a snapshot of a munin graph: As you can see the amount of committed memory increases gradually causing the swap file to be use. What strikes me odd is that the amount of inactive memory keeps growing as well. It is my understanding that the inactive memory is actually memory freed up but not yet clean by the OS and put back in the free memory pool. It seems that running out of memory is acutally caused by this lack of clean up, but I may be wrong. Can you give some tips to find the cause of the problem and/or cause CentOS to reclaim the inactive memory? Thanks. Some extra info: 1) I have a tmpfs mounted on /tmp and the number of files stored there grows (but it is double the amount of the inactive memory). 2) cat /proc/meminfo (at a later stage than the image) gives: MemTotal: 14371428 kB MemFree: 1207108 kB Buffers: 35440 kB Cached: 4276628 kB SwapCached: 785316 kB Active: 9038924 kB Inactive: 3902876 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 14371428 kB LowFree: 1207108 kB SwapTotal: 10223608 kB SwapFree: 6438320 kB Dirty: 627792 kB Writeback: 0 kB AnonPages: 7844560 kB Mapped: 49304 kB Slab: 146676 kB PageTables: 27480 kB NFS_Unstable: 0 kB Bounce: 0 kB CommitLimit: 17409320 kB Committed_AS: 16471488 kB VmallocTotal: 34359738367 kB VmallocUsed: 275852 kB VmallocChunk: 34359462007 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 Hugepagesize: 2048 kB 3) The application is a combination of MySQL, Heritrix (http://crawler.archive.org/ ) and a Tomcat based Java servlet to manage things.

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  • What can cause an increase in inactive memory and how to reclame it?

    - by Boaz
    Hi All, I have heavy application running on a CentOS server and I'm seeing a strange memory behavior. Here is a snapshot of a munin graph: As you can see the amount of committed memory increases gradually causing the swap file to be use. What strikes me odd is that the amount of inactive memory keeps growing as well. It is my understanding that the inactive memory is actually memory freed up but not yet clean by the OS and put back in the free memory pool. It seems that running out of memory is acutally caused by this lack of clean up, but I may be wrong. Can you give some tips to find the cause of the problem and/or cause CentOS to reclaim the inactive memory? Thanks. Some extra info: 1) I have a tmpfs mounted on /tmp and the number of files stored there grows (but it is double the amount of the inactive memory). 2) cat /proc/meminfo (at a later stage than the image) gives: MemTotal: 14371428 kB MemFree: 1207108 kB Buffers: 35440 kB Cached: 4276628 kB SwapCached: 785316 kB Active: 9038924 kB Inactive: 3902876 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 14371428 kB LowFree: 1207108 kB SwapTotal: 10223608 kB SwapFree: 6438320 kB Dirty: 627792 kB Writeback: 0 kB AnonPages: 7844560 kB Mapped: 49304 kB Slab: 146676 kB PageTables: 27480 kB NFS_Unstable: 0 kB Bounce: 0 kB CommitLimit: 17409320 kB Committed_AS: 16471488 kB VmallocTotal: 34359738367 kB VmallocUsed: 275852 kB VmallocChunk: 34359462007 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 Hugepagesize: 2048 kB

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  • COM+/Desktop Heap errors in IIS affecting sites at random?

    - by tresstylez
    We have a Win2K3 server that is hosting 30+ sites. Each site is configured to have its own unique application pool -- so that we can manually recycle specific sites if needed and not kill sessions for the others. From what I've read, the consequence of this type of setup is that each application pool worker process gets allocated a Desktop Heap (normally 512 kb's) and we limit the number of app pools we can serve. http://blogs.msdn.com/b/david.wang/archive/2006/01/25/security-considerations-of-usesharedwpdesktop-on-iis6.aspx PROBLEM: What we're seeing is that occasionally COM+ errors get triggered, presumably by hitting our 512 kb limit of the desktop heap -- and certain sites become unresponsive (or have errors) until we manually recycle that specific app pool. I know that I can increase the desktop heap limit to 1024, and make other tweaks/tunes, but I've been tasked with finding out what exactly causes one site's heap to max out as opposed to another. It seems that when we start seeing COM+ errors, the sites it affects are random -- small sites or big sites (heavier used). Is it based on process id? Traffic? Any pointers on understanding this a little more would be excellent. Thanks! jg

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  • PPTP Client setup, Fedora 17

    - by Suarez Romina
    I am trying to connect to hidemyass.com VPN services via PPTP, but I am having issues understanding why it isn't working, since I don't get a warning or fatal error and my IP remains the same. This is how i create the connection: [root@lasvegas-nv-datacenter ~]# pptpsetup --create TUNNELNAME --server 199.58.165.20 --username MYUSERNAME --password MYPASSWORD --encrypt --start And this is the output: Using interface ppp0 Connect: ppp0 <-- /dev/pts/1 CHAP authentication succeeded MPPE 128-bit stateless compression enabled local IP address 10.200.21.14 remote IP address 10.200.20.1 After that, I check the log and this is what i get: [root@lasvegas-nv-datacenter ~]# tail -f /var/log/messages Aug 24 11:25:33 lasvegas-nv-datacenter pptp[3892]: anon log[ctrlp_rep:pptp_ctrl.c:254]: Sent control packet type is 1 'Start-Control-Connection-Request' Aug 24 11:25:33 lasvegas-nv-datacenter pptp[3892]: anon log[ctrlp_disp:pptp_ctrl.c:754]: Received Start Control Connection Reply Aug 24 11:25:33 lasvegas-nv-datacenter pptp[3892]: anon log[ctrlp_disp:pptp_ctrl.c:788]: Client connection established. Aug 24 11:25:34 lasvegas-nv-datacenter pptp[3892]: anon log[ctrlp_rep:pptp_ctrl.c:254]: Sent control packet type is 7 'Outgoing-Call-Request' Aug 24 11:25:34 lasvegas-nv-datacenter pptp[3892]: anon log[ctrlp_disp:pptp_ctrl.c:873]: Received Outgoing Call Reply. Aug 24 11:25:34 lasvegas-nv-datacenter pptp[3892]: anon log[ctrlp_disp:pptp_ctrl.c:912]: Outgoing call established (call ID 0, peer's call ID 20096). Aug 24 11:25:38 lasvegas-nv-datacenter pppd[3884]: CHAP authentication succeeded Aug 24 11:25:38 lasvegas-nv-datacenter pppd[3884]: MPPE 128-bit stateless compression enabled Aug 24 11:25:38 lasvegas-nv-datacenter pppd[3884]: local IP address 10.200.21.14 Aug 24 11:25:38 lasvegas-nv-datacenter pppd[3884]: remote IP address 10.200.20.1 Can someone help me? Basically, i Ieed to connect to the VPN and have my IP changed after the connection. I read a lot of guides but still cannot understand why I don't get a connection.

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  • Cisco SG200 vlan issue in ESXi VSA cluster

    - by George
    I have three Cisco SG200-26 switches, and I also have two ESXi hosts that I have connected like shown in the below "best practice" map by VMware: http://communities.vmware.com/servlet/JiveServlet/previewBody/17393-102-1-22458/VSA_networking_map.pdf Even though I created the VLANs in the SG200 and I set the two VLANs (508 and 608) as allowed for these untagged ports (where my ESX NIC's are connected), I can not ping from host 1 to host 2 when configuring the NIC's to use 608 VLAN. Am I missing something? my IP's are all in the 192.168. range, and the only reason I need the VLANs is to isolate the traffic of VSA back-end internally, only the two hosts will be using the VLANs. So I think I do not have to create virtual interfaces on my router since that's the case, is my understanding correct? Also sending my switch config screenshot below.. all 3 switches have the latest firmware (it seems these were originally linksys and got rebranded as cisco after the acquisition) http://img31.imageshack.us/img31/2503/switch.gif Any ideas what to change on the Cisco SG200 to make this work , would be appreciated! The second VLAN (608) only needs two IP's: 192.168.0.1 and 192.168.0.2 The first VLAN (508) will have about 15 IP's for ESXi Management and VSA cluster service, I could use either 192.168.1.xx or 10.0.1.xx The rest of my network (about 50 clients) is in 192.168.1.xx range VMware also states that the VLAN protocol on the physical switch must be 802.1Q, not ISL, anyone knows which of the two my SG200-26 uses? In addition to that, the only requirement from VSA is that my two hosts: -Are in the same subnet. -Have static IP addresses set. -Have the same Default Gateway configured. If I need inter-vlan routing for this, I suppose I have to create virtual interfaces on my sonicwall, and assign an IP for each VLAN, and then set routes between them? Thank you for your time!

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  • What DBus signal is sent on system suspend?

    - by Paul Robinson
    Hello, I need to detect when a machine is going to sleep in Ubuntu 9.10 and Fedora 13. Both use UPower, so I've been looking on the "org.freedesktop.UPower" DBus bus for such signals. I've been listening for the "sleeping" signal on the UPower bus with the following command: dbus-monitor --system "type='signal',interface='org.freedesktop.UPower',member='Sleeping'" When I sleep the machine (either by closing the lid, selecting "shutdown - suspend" or sending a DBus message) I don't see a "sleeping" event. I notice that the "Sleeping" event is sent when the "org.freedesktop.UPower.AboutToSleep" method is invoked. I can do this manually by calling: dbus-send --print-reply --system --dest=org.freedesktop.UPower /org/freedesktop/UPower org.freedesktop.UPower.AboutToSleep And I notice the "sleeping" signal is fired. My understanding is that anything that sleeps the PC must send the "AboutToSleep" signal before hand. It doesn't seem like this is happening. I've tried these steps on both Fedora 13 and Ubuntu 9.10 and I see the same results. Can anyone explain what's happening or provide me with an alternative DBus signal to listen for? Many thanks, Paul

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  • Unzip individual files from multiple zip files and extract those individual files to home directory

    - by James P.
    I would like to unzip individual files. These files have a .txt extension. These files also live within multiple zipped files. Here is the command I'm trying to use. unzip -jn /path/to/zipped/files/zipArchiveFile2011\*.zip /path/to/specific/individual/files/myfiles2011*.txt -d /path/to/home/directory/for/extract/ From my understanding, the -j option excludes directories and will extract only the txt files The -n option will not overwrite a file if it has already been extracted. I've also learned that the forward slash in /path/to/zipped/files/zipArchiveFile2011\*.zip is necessary to escape the wildcard (*) character. Here is sample of error messages I'm coming accross: Archive: /path/to/zipped/files/zipArchiveFile20110808.zip caution: filename not matched: /path/to/specific/individual/files/myfiles20110807.txt caution: filename not matched: /path/to/specific/individual/files/myfiles20110808.txt Archive: /path/to/zipped/files/zipArchiveFile20110809.zip caution: filename not matched: /path/to/specific/individual/files/myfiles20110810.txt caution: filename not matched: /path/to/specific/individual/files/myfiles20110809.txt I feel that I'm missing something very simple. I've tried using single quotes (') and double quotes (") around directory paths. But no luck.

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  • Upgrading Visio 2000 to Visio 2007

    - by dirtside
    I have Microsoft Visio 2000 SR 1, and recently purchased Microsoft Office Visio Standard 2007 with the understanding (supported by the product info and some other research) that I'd be able to upgrade. However, when I install 2007, it tells me it can't find a previous install of Visio, but... it's right there! Here's the exact message: "Setup can't find a version of Microsoft Office on your computer. If Office is installed on a disk or network share, click the browse button to select the appropriate disk or share... (etc.)" No matter which directory or drive I pick (various Office installs, the old Visio install, various subdirectories) it gives the following message: "The path you have chosen does not point at a qualifying upgradeable product. Click 'Retry' to try again or 'Cancel' to quit setup." Any ideas? This is a legit copy of Visio 2007 (purchased from Amazon) and the copy of Visio 2000 is legit as well. I'm not sure what exactly the installer is looking for that it would consider a "qualifying upgradeable product". A specific file?

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  • Apache2 refuses to process php files - "Snow Leopard" OSX 10.6.4

    - by w-01
    I have a macbook pro i5. my understanding is that by default it should be able to serve php5. i have uncommented the relevant line in /etc/apache2/httpd.conf LoadModule php5_module libexec/apache2/libphp5.so I have restarted apache with sudo apachectl -k restart and when i try to access a file with a php extension, Apache prompts me to download the file. i.e. instead of processing the php and sending me html, it thinks i want to download the file.... when i look in apache error log i see this [Fri Nov 12 10:16:14 2010] [notice] Apache/2.2.14 (Unix) PHP/5.3.2 mod_ssl/2.2.14 OpenSSL/0.9.8l DAV/2 mod_wsgi/3.2 Python/2.6.1 configured -- resuming normal operations so it looks like php5 is loading properly. I'd like to know either: How do i fix this? or How do I reinstall apache2 so that it's like i just installed the os? thanks in advance update @Zayne - the end of my httpd.conf has Include /private/etc/apache2/other/*.conf and i have a file /etc/apache2/other/php.conf with the contents <IfModule php5_module> AddType application/x-httpd-php .php AddType application/x-httpd-php-source .phps <IfModule dir_module> DirectoryIndex index.html index.php </IfModule> </IfModule> @Zayne I've already copied php.ini.default to php.ini in the same folder. when i run sudo apachectl configtest i get /usr/sbin/apachectl: line 82: ulimit: open files: cannot modify limit: Invalid argument httpd: Could not reliably determine the server's fully qualified domain name, using ::1 for ServerName Syntax OK furthermore i decided to try apachectl -M which shows all loaded modules Most importantly in the list of loaded modules i got Loaded Modules: php5_module (shared) Since the module is being loaded, it seems like the issue has more to do with making apache use php engine to process the php files.... so something wrong with the ifmodule directive?

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  • Time drift in Cloud Server - need to mainpulate GRUB config

    - by Aditya Advani
    We are hosting a VPS on a popular host and are experiencing a regular time drift of several minutes a day forward (approx 7). Linux Kernel: 2.6.18-164.11.1.el5 GNU/Linux Distro: CentOS release 5.4 (Final) We reached out to our hosting provider and their support advised us " This is a known issue with Cloud Servers. To fix this you will need to add one line to your grub config located at: /boot/grub/menu.lst The line you need to add is: noapic nolapic divider=10 nolapic_timer This should correct this issue. You will need to restart after this is added in. " Because I am wary of manipulating grub, mostly I'm terrified that our server may fail to restart - I ask you guys, the pro *nix admins - where exactly in this file does the recommended insertion below: # line from 1&1 for time syncing issue (Case 5163) noapic nolapic divider=10 nolapic_timer go? Please specify where exactly, and whether the order of commands is or is not important. Why is the block below "title CentOS ..." indented? If someone could give me an overview of how this works or point me to a resource that's easy to follow, that's what I'm looking for immediately, a light overview or basic understanding of what I;m doing. If GRUB and bootloaders are a deep dark treasure trove of kernel hacking or something, that's great well-recommended in-depth resources are also very welcome. This is my current /boot/grub/menu.lst # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file #boot=/dev/sda # serial --unit=0 --speed=57600 terminal --timeout=5 serial console timeout=5 title CentOS (2.6.18-164.11.1.el5) root (hd0,0) kernel /boot/vmlinuz-2.6.18-164.11.1.el5 ro root=/dev/hda1 console=tty0 console=tty initrd /boot/initrd-2.6.18-164.11.1.el5.img MOST IMPORTANT: I need to know where in the file above it is appropriate to paste the suggested line so I can confidently restart my VPS after manipulating GRUB config

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  • Run script before shutdown/restart

    - by dtbarne
    I'd like to run a PHP script when an instance is told to shutdown, but of course before it actually finishes shutting down. My particular script is just looking to push some log files from the local partition to a another server. I've got the gist of how this process works, but I need some clarification. How I understand it. Please correct me if I'm wrong. Create an executable script in /etc/init.d (lets call it /etc/init.d/push-logs) Create a symlink to /etc/init.d/push-logs from /etc/rc0.d (shutdown) and /etc/rc6.d (reboot). The name should be KXXpush-logs Here's my questions: Of course - am I understanding correctly? For #2 above - it sounds like the lower the XX the better - is there too low a number I can use? Does it matter if it shares a number with another script? Does the script in /etc/init.d/push-logs HAVE to follow the standard init.d template (supporting start/stop, etc. commands)? This doesn't really apply to my use case. If possible I just want the script to be the following: #!/bin/sh # # Run PHP file prior to shutdown # /usr/bin/php /path/to/php_file.php

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  • Windows system restore deletes various executables and *.js files. How does it decide which files to delete?

    - by Leftium
    I restored my system from a Windows System Restore point. It solved some issues I was having, but introduced other strange problems (like my optical drive disappeared). One thing that surprised me was several files from my Web2Py installation were deleted: the executables and *.js files; possibly some others (like favicon.ico). I did not expect this because Web2Py is basically a portable, standalone application. You just unzip it and run the executable inside, so nothing should be registered with Windows. My question is: what files does Windows system restore delete, and how does it decide this? I'm just wondering what other files I'm missing and if there's a way to get restore them (without rolling back the restore point). Perhaps it scans for certain files types (like exe, js, ico, dll) with a creation date that was after the restore point creation date? Some other people who experienced a similar problem: Dropbox: Lost Files User files missing after run system restore. update: I found some more references on how Windows System Restore works: Understanding how System Restore in Windows Vista treats executable files Why Vista's System Restore is Dangerous and What to do About it

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  • DNS setup problems with Windows Azure VPS

    - by jbigelow
    What is the proper to setup the A record (or CNAME) for a Windows Azure VPS? I can't connect to my website after setting up IIS and believe I don't have the correct DNS setup. I created a small VPS instance with the default Windows Server 2012 configuration. I RDP'd in and added the Webserver role. In my DNSMadeEasy control panel I added an A record with my Public Virtual IP Address. In IIS I went to the default website and added bindings for the hostname of my website, so I should be able to type mywebsite.com and see the IIS 8 splash screen, but instead my browser cannot connect. I attempted to navigate to the site by typing in my Virtual IP address into the browser and still cannot connect. I RDP'd back into the machine and turned off Windows Firewall. No change, still cannot navigate to my website. From within IIS I double checked my binding. If I click "browse *:80" I can bring up my website in IE with the http:// localhost address. If I click "browse mywebsite on *.80" IE says "This page cannot be displayed.", from within the RDP session I can view the site if I navigate to http:// 127.0.0.1 but not if I navigate to my Virtual IP, nor can I view the page if I try navigating to http:// mywebservername.cloudapp.net I'm thinking I must be fundamentally not understanding how do DNS setup with Azure VPS but my initial Google searches aren't turning up any helpful information. (spaces added after the http:// so serverfault doesn't try and render them as valid urls.)

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  • Unknown Apache2 + PHP5 FastCGI 500 error .. caused by search engine bots?

    - by rdjurovich
    My Ubuntu server is configured with Apache 2.2.8 and PHP 5.2.4-2ubuntu5.18 in FastCGI mode. Everything works well, except I am seeing 500 errors that only seem to come from bots accessing the server.. for example (access.log): x.125.71.104 - - [16/Nov/2011:10:27:39 +1100] "GET / HTTP/1.1" 500 41377 "-" "Mozilla/5.0 (compatible; Baiduspider/2.0; +http://www.baidu.com/search/spider.html)" x.40.103.239 - - [16/Nov/2011:11:05:56 +1100] "GET / HTTP/1.0" 500 14717 "-" "Mozilla/5.0 (compatible; mon.itor.us - free monitoring service; http://mon.itor.us)" x.249.67.114 - - [14/Nov/2011:20:57:17 +1100] "GET / HTTP/1.1" 500 101 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)" x.55.39.85 - - [14/Nov/2011:19:31:06 +1100] "GET / HTTP/1.1" 500 7032 "-" "msnbot/2.0b (+http://search.msn.com/msnbot.htm)._" It is my understanding that a 500 error will be thrown when the PHP process fails to respond to Apache, which could be caused by a fatal PHP error or if PHP runs out of processes.. so my assumption is that either the bots are hitting the server too hard, killing the PHP processes, or something in the request header from bots is causing a fatal error in my PHP script? If anyone can offer advice on this it would be greatly appreciated! Ryan

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  • Choosing the right TV tuner - USB or PCI TV tuners, hardware/software, DVB? Hybrid/combo/analog?

    - by Nucleon
    Greetings, I'll start with some background information so you know what I'm trying to accomplish and then get to my question. I work at a Television station in the US and we are working on setting up an online DVR/Podcast system for all of our newscasts. So basically we would be recording every newscast in HD, encoding it to flv/h.264 for viewing in a browser on flash compatible and iphone/ipad devices, eventually migrating to WebM when it's browser compliant. This task is theoretically pretty simple as it all it involves is a TV tuner device and a program like VLC, MythTV or whatever to schedule and dump it to a file, encode it with VLC/FFMPEG and push it to the streaming server. Now to the hardware, in order to accomplish that task, should I use an internal PCI tuner or a USB 2.0 tuner? Is there a difference? The bus speeds of both are not too far apart, and is the bus speed really relevant in this case? Does it matter if the device has a hardware encoder or a software encoder? On many sites the USB was recommended for ease of set up and use, but would it overly task a processor, or is that not a concern as long as it's a decent PC (at least duo core, 6gb ram). What's the difference between the stick USB and the Box USBs? To my understanding analog is basically gone in the US, so we would want a hybrid or combo tuner correct? How do those differ from DVB? Are there any other features or concepts which I am missing which may influence the recommended product. It would be ideal if the device which could work in both Linux and a Windows environment, to my knowledge most Hauppauge are? Example 1: PCI Hauppage http://www.newegg.com/Product/Product.aspx?Item=N82E16815116033 Example 2: USB 2.0 Box http://www.newegg.com/Product/Product.aspx?Item=N82E16815116029 Example 3: USB 2.0 Stick http://www.newegg.com/Product/Product.aspx?Item=N82E16815116031 Any guidance from the Superusers would be much appreciated!

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  • Odd IIS FTP Failure

    - by Monkey Boson
    We're running a script on our production box that zips up our database and FTPs it to a backup box every night. Our production box is running Redhat Enterprise 5. Our backup box is running Windows XP Pro / IIS 5.1. Both machines are on the same VLAN (not sure if this is imporatant). The backup file usually clocks in at around 3GB. Every now and again (~5% of the time), the backup script fails. The shell script on the "client side" - which looks at return codes - never identifies any problem since ftp always returns 0. On the "server side", IIS writes out a log that looks like this: #Software: Microsoft Internet Information Services 5.1 #Version: 1.0 #Date: 2009-08-08 07:04:25 #Fields: time c-ip cs-method cs-uri-stem sc-status sc-win32-status 07:04:25 192.168.111.235 [15]USER backup 331 0 07:04:25 192.168.111.235 [15]PASS - 230 0 07:05:54 192.168.111.235 [15]created backup_20090808.zip 426 10035 07:06:16 192.168.111.235 [15]QUIT - 426 0 Now, I know that 426 means "Connection closed, transfer aborted", which is sort-of a catch-all for "IIS was not happy". The real puzzler is the wincode: 10035 (WSAEWOULDBLOCK -- Resource temporarily unavailable). My understanding is that this code is normal when using non-blocking socket calls - which would almost certainly be used by any FTP Server implementation. My first guess that it might be a timeout issue doesn't make sense, since we're only talking about a few minutes here and the timeout was left at the default 900 s. Does anybody have any ideas about what is causing this problem, and how it may be fixed? Thanks!

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  • Group Policy GPO not 'seen' at client

    - by fukawi2
    I have a new OU (natorg.local\NATO\Users) that I am trying to apply GP to. I have created a new user in this OU, and linked the 3 GPO's to this OU: DESKTOP - Folder Redirection (AppData) DESKTOP - Folder Redirection (Desktop) DESKTOP - Folder Redirection (Documents) Hopefully the names are sufficient to suggest what they do exactly. The settings are under User Settings so there is no Loopback processing required (if my understanding is correct). GP Modelling for the user and specific computer says that the GPOs will/should be applied, however on the client, gpresult doesn't even appear to see the GPOs under either "Applied" or "Not Applied": USER SETTINGS -------------- CN=Amir,OU=Users,OU=NATO,DC=natorg,DC=local Last time Group Policy was applied: 25/06/2012 at 11:07:13 AM Group Policy was applied from: svr-addc-01.natorg.local Group Policy slow link threshold: 500 kbps Applied Group Policy Objects ----------------------------- LAPTOPS - Power Settings WSUS - Set Server Address OUTLOOK - Auto Archive SECURITY - Lock Screen After Idle Default Domain Policy DESKTOP - Regional Settings NETWORK - Proxy Configuration NETWORK - IE General Config OFFICE - Trusted Locations OFFICE - Increase Privacy OUTLOOK - Disable Junk Filter DESKTOP - Disable Windows Error Reporting DESKTOP - Hide Language Bar NETWORK - Disable Skype DESKTOP - Disable Thumbs.db Creation WSUS - Set Server Address The following GPOs were not applied because they were filtered out ------------------------------------------------------------------- Local Group Policy Filtering: Not Applied (Empty) NETWORK - Google Chrome Configuration Filtering: Not Applied (Empty) SYSTEM - Event Log Configuration Filtering: Not Applied (Empty) SECURITY - Local Administrator Password Filtering: Not Applied (Empty) NETWORK - Disable Windows Messenger Filtering: Not Applied (Empty) SECURITY - Audit Policy Filtering: Not Applied (Empty) WSUS - Automatic Install Filtering: Not Applied (Empty) NETWORK - Firewall Configuration Filtering: Not Applied (Empty) DESKTOP - Enable Offline Files Filtering: Not Applied (Empty) I haven't altered permissions on the GPO's at all, no WMI filtering... As I said, GP Modelling says that they should be applied. GPResult on the client correctly identifies itself as being the correct OU (CN=Amir,OU=Users,OU=NATO,DC=natorg,DC=local) There are 2 x 2008R2 and a 2003 DC, domain is 2003 level, client is Windows XP SP3. Can anyone suggest why these GP Objects would be "invisible" to the client?

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  • route propogation using OSPF in a network

    - by liv2hak
    I am using Juniper J-series routers to emulate a small telco and VPN customer.The internal routing will be configured with OSPF,MPLS including a default and backup path,RSVP for distributing labels withing the telco,OSPF for distributing routes from the customer edge (CE) routers to the VRF's in the adjacent PE's and finally iBGP for distributing customer routes between VRF's in different PEs. The topology of the network is shown below. The Addressing scheme for the network is as follows. UOW-TAU ******* ge-0/0/0 192.168.3.1 TAU-PE1 ******* ge-0/0/0 10.0.1.0 ge-0/0/1 10.0.2.0 ge-0/0/2 192.168.3.2 TAU-P1 ****** ge-0/0/0 172.16.1.0 ge-0/0/1 172.16.3.1 ge-0/0/2 10.0.2.2 HAM-P1 ****** ge-0/0/0 172.16.3.2 ge-0/0/1 172.16.2.1 ge-0/0/3 10.0.3.2 ACK-P1 ****** ge-0/0/0 172.16.1.2 ge-0/0/2 172.16.2.2 ge-0/0/3 10.0.1.2 HAM-PE1 ******* ge-0/0/0 10.0.3.1 ge-0/0/2 192.168.4.2 UOW-HAM ******* ge-0/0/0 192.168.4.1 I also set up loopback address for each node. I want to setup OSPF so that path to each internal subnet and router loopback address is propogated to all PE and P nodes.I also want to select a single area for PE and P nodes,and on each node I should add each interface that should be propogated. How do I accomplish this.? With my understanding below is the procedure to achieve this.Is the below explanation correct? I set up OSPF on UOW-TAU ge-0/0/0 interface and ge-0/0/1 interface and UOW-HAM ge-0/0/0 interface and ge-0/0/1 interface. let me call this Area 100. Once I have done this I should be able to reach each node from others using ping and traceroute. Any help is highly appreciated.

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  • Network Traffic Log

    - by Chris Becke
    Background - On my "home" network I have a Linksys WTR45GL router providing my internet access as well as a wireless AP. Connected I have * 2 Windows PCs (wired) * At least one laptop (Wired) * Some 802.11 enabled handheld consoles (PSPs) * A Nintendo Wii * Some windows XP pcs used by the people in the granny flat. Where I live, South Africa, well, 1Gb worth of monthly cap is, while not expensive, costly enough that I'd like to be sure that all the bandwidth used by devices on my network is ... well ... legitimate and not the result of neighbors parasiting my wireless, malware or just the result of "liberal" download policies in my software. I got the Linksys WRT45GL on the understanding that there were custom firmwares (DD-WRT and Tomato) that allowed bandwidth tracking, but there doesn't seem to be any facility to get a log of traffic that can be examined to see (a) which local devices were the biggest consumers of bandwidth and (b) what they were connected to. What tools are there for logging traffic such that, when it gets to that OMG moment in the month when all my bandwidth is gone, I have a chance to find out what the hell used it all up (and hopefully attempt some corrective action).

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  • Simple P2V help from Linux to Windows

    - by Ke
    Hi, I have two OS's installed on different drives in my PC. One linux (Centos 5.4) and one windows 7. Its getting tiresome to constantly have to stop and restart the PC when I want to use either OS. I would very much like to use Windows 7 as my host OS and access my linux OS from within Windows. However, im having trouble deciphering exactly how to do this (many of the articles seem confusing and a bit overkill) From what i have seen its possible to use VMWare converter to convert the physical linux image to a virtual image so that I can use it in windows. As im having problems understanding how this is done, I would really appreciate a step by step guide (for a newbie), or any simple tutorials that you can point me at. Some questions beforehand: 1) My linux image is around 80gb, do i need to take this into consideration? The linux drive is around 180gb in total. All my other drives are NTFS non writeable in linux (as I use them in windows and ntfs is dodgy in linux), so probably not possible to move the image over to my ntfs drives 2) Can I just zip the linux files up somehow and transfer it to windows to create the p2v? 3) Is it possible to do the P2V conversion while I am logged into windows. I can see the actual linux drive loaded in disk manager, but windows doesnt read linux file systems so im confused as to how to access the linux drive if this is possible. 4) Or will i need to do the whole p2v conversion inside linux? Cheers, any help is much appreciated Ke (a confused p2v newbie)

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  • Clustering/load balancing for cluster unaware applications

    - by AaronLS
    Forgive me if I use any of these terms incorrectly. I am wondering if there is any kind of software that would allow my two "join" two computers together such that a cluster unaware application could utilize their combined computing resources? By "cluster unaware" I mean an application that isn't designed to share work across multiple services. My understanding is that clustering is enabled by the specific application by it's architecture, such that messaging with multiple instances of the application coordinate the sharing of work. Instead I am looking for something that enables clustering at the OS or virtualization level, so that any application could essentially be clustered. Failing that, I am also wondering about the following scenario: We have 3 different applications we will call A, B, and C. We have 2 single core computers. At any given time lets say that any combination of those applications will be CPU intensive. In cases where only 2 of those apps are very active, have one of them moved over to a different server. In a nutshell, some sort of dynamic automatic shuffling of the application's load. I have heard of virtual machines that can be migrated across physical machines while live, but I am wondering if this can be done automatically in response to an application's or VM's CPU activity?

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  • GRE Tunnel over IPsec with Loopback

    - by Alek
    I'm having a really hard time trying to estabilish a VPN connection using a GRE over IPsec tunnel. The problem is that it involves some sort of "loopback" connection which I don't understand -- let alone be able to configure --, and the only help I could find is related to configuring Cisco routers. My network is composed of a router and a single host running Debian Linux. My task is to create a GRE tunnel over an IPsec infrastructure, which is particularly intended to route multicast traffic between my network, which I am allowed to configure, and a remote network, for which I only bear a form containing some setup information (IP addresses and phase information for IPsec). For now it suffices to estabilish a communication between this single host and the remote network, but in the future it will be desirable for the traffic to be routed to other machines on my network. As I said this GRE tunnel involves a "loopback" connection which I have no idea of how to configure. From my previous understanding, a loopback connection is simply a local pseudo-device used mostly for testing purposes, but in this context it might be something more specific that I do not have the knowledge of. I have managed to properly estabilish the IPsec communication using racoon and ipsec-tools, and I believe I'm familiar with the creation of tunnels and addition of addresses to interfaces using ip, so the focus is on the GRE step. The worst part is that the remote peers do not respond to ping requests and the debugging of the general setup is very difficult due to the encrypted nature of the traffic. There are two pairs of IP addresses involved: one pair for the GRE tunnel peer-to-peer connection and one pair for the "loopback" part. There is also an IP range involved, which is supposed to be the final IP addresses for the hosts inside the VPN. My question is: how (or if) can this setup be done? Do I need some special software or another daemon, or does the Linux kernel handle every aspect of the GRE/IPsec tunneling? Please inform me if any extra information could be useful. Any help is greatly appreciated.

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  • Remote server security: handling compiler tools

    - by Gonzolas
    Hello! I was wondering wether to remove compiler tools (gcc, make, ...) from a remote production server, mainly for security purposes. Background: The server runs a web application on Linux. Consider Apache jailed. Otherwise, only OpenSSHd faces the public network. Of course there is no compiler stuff within the jail, so this is about the actual OS outside of any jails. Here's my personal PRO/CON list (regarding removal) so far: PRO: I had been reading some suggestions to remove compiler tools in order inhibit custom building of trojans etc. from within the host if an attacker attains unpriviliged user permissions. CON: I can't live without Perl/Python and a trojan/whatever could be written in a scripting language like that, anyway, so why bother about removing gcc et al. at all. There is a need to build new Linux kernels as well as some security tools from source directly on the server, because the server runs in 64-bits mode and (to my understanding) I can't (cross-)compile locally/elsewhere due to lack of another 64-bits hardware system. OK, so here are my questions for you: (a) Is my PRO/CON assessment correct? (b) Do you know of other PROs / CONs to removing all compiler tools? Do they weigh in more? (c) Which binaries should I consider dangerous if the given PRO statement holds? Only gcc, or also make, or what else? Should I remove the enitre software packages them come with? (d) Is it OK to just move those binaries to a root-only accessible directory when they are not needed? Or is there a gain in security if I "scp them in" every time? Thank you!

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