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  • Good firefox extension to download .flv flash video?

    - by Tamás Szelei
    I'm looking for a decent flash video downloader for Firefox. There are tons of them. I'd like to use it for a custom site with some random flash video player, not Youtube. How can it be accomplished? Edit: None of these methods you guys suggested worked so far; I looked up various places where the temporary file might end up - it just doesn't. It is indeed a flash player, but it seems like it's not caching - is that possible?

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  • How can I improve performance over SMB/CIFS for an application that has poor write speeds?

    - by Jeremy
    I have a third party application that reads several large files and generates a third large file. Its performance is quite good when the generated file is stored on "local storage", i.e. either a direct attached or iSCSI-based disk. The source files that are read can be stored remotely on our NAS and accessed via SMB with little effect on performance. However, if we attempt to write the target file to any kind of SMB/CIFS share (Samba or Windows Server) the performance drops almost ten-fold. This is unacceptably slow in our case. Writing files to network shares is not otherwise slow. I can copy large files to SMB shares and get great performance - near what I would expect is possible given the disks and network in question. I have a theory that this application's problem with SMB shares has something to do with a lack of write caching over the share and perhaps lots of network roundtrips. Is this possible and is there anything that can be done about it?

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  • SQL 2008 R2 3rd Party Peer-to-Peer Replication, Global Site Distribution

    - by gombala
    We are looking at hosting 3 globally distributed SQL Server installations at different data centers. The intent is that Site A will serve web traffic and data for a specific region, same with Site B and C. In the case that Site A data center goes down, looses connectivity, etc. the users of Site A users will fail over to Site B or C (depending which is up). Also, if a user from Site A travels to Site C they should be able to access their data as it was on Site A. My questions is what SQL replication technology (SQL Replication or 3rd party) can support this scenario? We are using SQL 2008 R2 Enterprise at each site, each site runs on top of VMWare with a Netapp filer. Would something like distributed caching help in this scenario as well? We have looked at and tested Peer-to-Peer replication but have encountered issues with conflicts during our testing. I imagine there are other global data centers that have encountered and solved this issue.

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  • Is it a bad idea to make roaming profile share available offline?

    - by Bryan
    This is regarding a Windows 2008 R2 domain. The Documents, Desktop, Application Data folders are all redirected to users' home directory (mapped as Z:). The users home directory is configured to be offline for mobile users. User profiles are configured as roaming, and located on a separate share (not mapped as a network drive), just accessed via an UNC path. Would it be a good or idea to make the roaming profile share available offline for mobile users using the caching option "All files and programs that users open from the share will be automatically available offline"?

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  • Connect to Nonencrypted Wireless Network Using Ubuntu Commands

    - by Tim
    I failed to connect to an open i.e. nonencrypted wireless network using Ubuntu command lines. Here is what I did: $ sudo /etc/init.d/NetworkManager stop * Stopping network connection manager NetworkManager [ OK ] $ sudo /sbin/ifconfig wlan0 up $ sudo iwconfig wlan0 essid "Cavalier High-Speed 866-4-CAVTEL" $ sudo dhclient wlan0 There is already a pid file /var/run/dhclient.pid with pid 10812 killed old client process, removed PID file Internet Systems Consortium DHCP Client V3.1.1 Copyright 2004-2008 Internet Systems Consortium. All rights reserved. For info, please visit http://www.isc.org/sw/dhcp/ wmaster0: unknown hardware address type 801 wmaster0: unknown hardware address type 801 Listening on LPF/wlan0/00:0e:9b:cd:4e:18 Sending on LPF/wlan0/00:0e:9b:cd:4e:18 Sending on Socket/fallback DHCPREQUEST of 192.168.1.67 on wlan0 to 255.255.255.255 port 67 DHCPREQUEST of 192.168.1.67 on wlan0 to 255.255.255.255 port 67 DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7 DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7 DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 8 DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 12 DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 21 DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 6 No DHCPOFFERS received. Trying recorded lease 192.168.1.67 PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data. --- 192.168.1.1 ping statistics --- 1 packets transmitted, 0 received, +1 errors, 100% packet loss, time 0ms Trying recorded lease 192.168.1.45 PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data. --- 192.168.1.1 ping statistics --- 1 packets transmitted, 0 received, +1 errors, 100% packet loss, time 0ms No working leases in persistent database - sleeping. $ sudo /sbin/iwconfig wlan0 wlan0 IEEE 802.11bg Mode:Managed Frequency:2.422 GHz Access Point: Not-Associated Tx-Power=27 dBm Retry min limit:7 RTS thr:off Fragment thr=2352 B Encryption key:off Power Management:off Link Quality:0 Signal level:0 Noise level:0 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 I was wondering what the problem is and how I can do it right? Thanks and regards!

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  • Incorrect durations mp4 file created by ffmpeg (avconv)

    - by Ruslan Sharipov
    Example usage: avconv -i rtmp://maps.lo.ufanet.ru/live/10e227922b473e91f37474fa084107af -vcodec copy -an -sn -map 0 -f segment -segment_format mp4 -segment_time 60 -y %05d.mp4 avconv version 0.8.3-6:0.8.3-1+b1, Copyright (c) 2000-2012 the Libav developers built on Jun 15 2012 13:54:35 with gcc 4.7.0 HandShake: client signature does not match! Metadata: height 480.00 remote_addr: sdp_session {sdp_session,0, {sdp_o,"-","1289703354974145","1289703354974145",inet4, "10.1.12.99"}, "Media Presentation", {inet4,"0.0.0.0"}, {0,0}, [{"control","*"},{"range","npt=0.0 start 30400239.52 timeshift_duration 319250.58 timeshift_size 120000.00 width 640.00 [flv @ 0x1d36a40] Estimating duration from bitrate, this may be inaccurate Input #0, flv, from 'rtmp://maps.lo.ufanet.ru/live/10e227922b473e91f37474fa084107af': Duration: N/A, start: 0.000000, bitrate: N/A Stream #0.0: Video: h264 (Baseline), yuvj420p, 640x480 [PAR 1:1 DAR 4:3], 1k tbr, 1k tbn, 2k tbc Output #0, segment, to '%05d.mp4': Metadata: encoder : Lavf53.21.0 Stream #0.0: Video: libx264, yuvj420p, 640x480 [PAR 1:1 DAR 4:3], q=2-31, 1k tbn, 1k tbc Stream mapping: Stream #0:0 -> #0:0 (copy) Press ctrl-c to stop encoding ^Cframe= 9566 fps= 36 q=-1.0 Lsize= -0kB time=318.25 bitrate= -0.0kbits/s video:30348kB audio:0kB global headers:0kB muxing overhead -100.000071% Received signal 2: terminating. Result: serafim@yard:~/video2$ ls 00000.mp4 00001.mp4 00002.mp4 00003.mp4 00004.mp4 00005.mp4 Now try to play the files in the player, such as VLC. And that's what we get: the first fragment (00000.mp4) played well, no problems, but the second (00001.mp4 and beyond) starts the bug manifests itself, namely the file 00001.mp4 first 60 seconds black screen, but since 61 seconds starts playing the video. Attachments: https://dl.dropbox.com/u/760901/rtmp_and_mp4.zip How to get rid of the delay with black screen at the beginning of the segments? Maybe ffmpeg to pass parameters, or third-party software is able to correct the obtained segments mp4?

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  • How does MySQL 5.5 and InnoDB on Linux use RAM?

    - by Loren
    Does MySQL 5.5 InnoDB keep indexes in memory and tables on disk? Does it ever do it's own in-memory caching of part or whole tables? Or does it completely rely on the OS page cache (I'm guessing that it does since Facebook's SSD cache that was built for MySQL was done at the OS-level: https://github.com/facebook/flashcache/)? Does Linux by default use all of the available RAM for the page cache? So if RAM size exceeds table size + memory used by processes, then when MySQL server starts and reads the whole table for the first time it will be from disk, and from that point on the whole table is in RAM? So using Alchemy Database (SQL on top of Redis, everything always in RAM: http://code.google.com/p/alchemydatabase/) shouldn't be much faster than MySQL, given the same size RAM and database?

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  • I need a way to read web feeds that meets the following requirements

    - by Daddy Warbox
    Requirements: Can be set as always on top of other windows. Can be moved and resized freely. Adjustable refresh times and/or a reload button. Text-only is fine. I will need to open hyper links, though. Simple and cheap free. Offline caching. If you know of a program that does all of this, can you tell me what settings I need to adjust to get it to do this? Thanks in advance.

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  • How does azure memory usage work?

    - by Jed Grant
    I have a windows azure website. In the dashboard it shows me that I have used 1.51 GB of the 2GB available per hour. I keep increasing the number of instances available in the shared node so the site doesn't shut down. After each hour finishes, the memory usage still shows 1.51 GB used. I assume this would start at ZERO and then be used as time goes on, but that doesn't appear to be the case. How does server memory work? What are some reasons my application using this much memory? (I use no output caching and generally have just built off of the basic MVC templates provided in visual studio.) What other considerations should I be making to get the amount of memory needed to decrease?

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  • Flash drive suddenly died. Why? Can I recover it?

    - by mg
    Hi, I have a flash drive that I used not too much but, after few month of inactivity, it died. I know that flash drives have a limited write cycles but I am sure that this is not the problem. I tried to create a new partition table and format the drive nothing worked. This is the output of mkfs.ext2. marco@pinguina:~$ sudo LANG=en.UTF-8 mkfs.ext2 -v -c /dev/sdc1 [sudo] password for marco: mke2fs 1.41.11 (14-Mar-2010) fs_types for mke2fs.conf resolution: 'ext2', 'default' Calling BLKDISCARD from 0 to 4001431552 failed. Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) Stride=0 blocks, Stripe width=0 blocks 244320 inodes, 976912 blocks 48845 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=1002438656 30 block groups 32768 blocks per group, 32768 fragments per group 8144 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736 Running command: badblocks -b 4096 -X -s /dev/sdc1 976911 badblocks: Input/output error during ext2fs_sync_device Checking for bad blocks (read-only test): done Block 0 in primary superblock/group descriptor area bad. Blocks 0 through 2 must be good in order to build a filesystem. Aborting.... Is there something I can do to recover it?

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  • Ubuntu Natty 11.04, Turning the wireless switch off; switches it off permanently!

    - by ZiGi
    i'm using an hp pavilion dv2000 i turned the wifi switch off by mistake, the LED turned orange and the wifi got disconnected. and now when i turn the switch on, it remains orange and the wifi still isn't functional. this happened before; i found a fix that worked searching google. it was done via terminal commands and i didn't have to download anything but i can't find the solution anymore! wlan0 shows up when i use: :~$iwconfig #BLA BLA BLA #... wlan0 IEEE 802.11abg ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=off Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off more results: :~$ sudo ifconfig wlan0 up SIOCSIFFLAGS: Operation not possible due to RF-kill :~$ rfkill list all 1: phy0: WirelessLAN Soft blocked: yes Hard blocked: yes :~$ sudo rfkill unblock all :~$ rfkill list all 1: phy0: WirelessLAN Soft blocked: no Hard blocked: yes :~$ sudo ifconfig wlan0 up SIOCSIFFLAGS: Operation not possible due to RF-kill it's still hard blocked! even though the switch is turned on; gives the same result eitherways a direction to a page with a working solution is a much appreciated answer!

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  • 504 Gateway Time-out after php fatal error

    - by tiagojsag
    I'm using nginx and php-fpm to develop a symfony2 based website, under ubuntu 12.10 (yes, I know I'm using a beta OS). Everything was working out fine until, due to an error on my code, I called an unexisting function, and got the following: Fatal error: Call to a member function (....) This isn't a problem (it's a bug in my code, easily fixable), but after this, no other page loads. My browser just keeps trying to load the page from the webserver, until nginx timeouts (after +- 30s, which should be some default timeout) and returns: 504 Gateway Time-out Restarting php-fpm solves the issue. Nginx logs show a timeout message, and nothing appears on php-fpm logs, even if I set them to debug level. I tried switching from fpm to fastcgi, and the same thing happens. I've looked around, but all similar error are related to big requests/file handling, which isn't the case. All the pages on my website load in a few seconds, even under development conditions (no caching, etc).

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  • is my xml cached by IIS7?

    - by user22817
    Hi guys, I have a flashplayer on my website. Behind it, there is an xml file which keeps the configuration of the products shown on that flashplayer. I do not understand why, if i modify something in the xml config file, the flash player is not updated at that moment, but after hours... Do you know why? I have not defined any rule for output caching in IIS7 so there is probably something default? Of course, i've tried Ctrl+f5 but does not work. Thanks.

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  • I need a way to read feeds that meets the following requirements

    - by Daddy Warbox
    Requirements: Can be overlaid over other windows. Can be moved and resized freely. Adjustable refresh times and/or a reload button. Text-only is fine. I will need to open hyper links, though. Simple and cheap free. Offline caching. If you know of a program that does all of this, can you tell me what settings I need to adjust to get it to do this? Thanks in advance.

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  • Cron Script to Delete Folder Contents Every 5 Minutes on Media Temple

    - by Brian Iannone
    I'm not familiar with server-side scripting, but I'm currently using a PHP application on Media Temple to cache JPEGs from four webcams hosted on a server located in the middle of the Indian Ocean. (Hence my reason for caching them in the US.) The webcams are updated every five minutes. The PHP application stores the cached images in http://static.rigic.co/cache/. I would like to create a cron script to automatically delete the contents of "cache" (not the folder itself; just the files inside) at a regular interval.

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  • Using nginx and/or varnish to cache server-generated 301 redirects

    - by rlotun
    I'm implementing a sort of url-shortener service. What happens is that I have some backend app server that takes in a request, does some computation and returns a 301 redirected url back upstream to an nginx frontend: request ---> nginx ----> app_server What I want to be able to do is cache this returned 301 url for the same request (a specific url with a "short code"). Does nginx do this caching automatically? Or should I drop in something like varnish in between nginx and the app_server? I can easily cache this in memcache, but that would require hitting the app_server, which I'm sure can be dispensed with after the first request. Thanks.

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  • Ways to do simple failover with one server and two IPs

    - by CrassHoppr
    The setup is one server (Windows 2008) at one location with two incoming connections. As the server has to interface with various on-site devices, and will have a small number of incoming connections, a data center is not an option, and instead cable/dsl connections must be used. The goal is that users visit https://service.site.com and are sent to either the primary IP address or a secondary IP if the primary is down. I've seen advice to use round robin DNS for this, but caching an IP for a downed interface is something I'd like to avoid. Is something like this possible with these constraints?

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  • Is Software Raid1 Using mdadm with a Local Hard Disk and GNDB Possible?

    - by Travis
    I have multiple webservers which use many small files to created dynamic web pages. Caching the web pages isn't an option. The webserver also performs writes so I need a synchronous filesystem. I'm looking to maximise performance as it's my understanding that small files is the weakness (to varying degreess) of a cluster filesystem over ethernet. Currently I'm using Centos 5.5, 64 bit. Since it's only about 300MB of data, I'm looking at mdadm using RAID-1 with the GNBD and a local hard disk using the "--write-mostly" option so the reads are done using the local hard disk. Is this possible? If so, is there any advantage to making it a tmpfs disk instead of a local hard disk? Or will the files on the local hard disk just get cached in RAM anyway so I won't see a performance gain by using tmpfs, assuming there's enough RAM available?

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  • A space-efficient guest filesystem for grow-as-needed virtual disks ?

    - by Steve Schnepp
    A common practice is to use non-preallocated virtual disks. Since they only grow as needed, it makes them perfect for fast backup, overallocation and creation speed. Since file systems are usually based on physical disks they have the tendency to use the whole area available1 in order to increase the speed2 or reliability3. I'm searching a filesystem that does the exact opposite : try to touch the minimum blocks need by an aggressive block reuse. I would happily trade some performance for space usage. There is already a similar question, but it is rather general. I have very specific goal : space-efficiency. 1. Like page caching uses all the free physical memory 2. Canonical example : online defragmentation 3. Canonical example : snapshotting

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  • Samba does not reload user group members

    - by xato
    I am running a simple samba server setup where users connect to a share which contains folders for specific user groups. The folders are chmod 2770, so only users which are in the correct group can read/write in them. The problem is that if I change group memberships (i.e. remove user from group / add user to group; changes are in sync between clients and server!) samba does not automatically reload the group memberships for the user, so they can still write to groups that they are no longer a member of etc. I either have to reconnect to the share or to restart samba to apply the changes. Is there any way to prevent group caching and/or enable group membership reload in samba? My smb.conf: https://gist.github.com/anonymous/ca7c10a3b3e2168d7a03

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  • how can i move ext3 partition to the beginning of drive without losing data?

    - by Felipe Alvarez
    I have a 500GB external drive. It had two partitions, each around 250GB. I removed the first partition. I'd like to move the 2nd to the left, so it consumes 100% of the drive. How can this be accomplished without any GUI tools (CLI only)? fdisk Disk /dev/sdd: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0xc80b1f3d Device Boot Start End Blocks Id System /dev/sdd2 29374 60801 252445410 83 Linux parted Model: ST350032 0AS (scsi) Disk /dev/sdd: 500GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 2 242GB 500GB 259GB primary ext3 type=83 dumpe2fs Filesystem volume name: extstar Last mounted on: <not available> Filesystem UUID: f0b1d2bc-08b8-4f6e-b1c6-c529024a777d Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal dir_index filetype needs_recovery sparse_super large_file Filesystem flags: signed_directory_hash Default mount options: (none) Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 15808608 Block count: 63111168 Reserved block count: 0 Free blocks: 2449985 Free inodes: 15799302 First block: 0 Block size: 4096 Fragment size: 4096 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 8208 Inode blocks per group: 513 Filesystem created: Mon Feb 15 08:07:01 2010 Last mount time: Fri May 21 19:31:30 2010 Last write time: Fri May 21 19:31:30 2010 Mount count: 5 Maximum mount count: 29 Last checked: Mon May 17 14:52:47 2010 Check interval: 15552000 (6 months) Next check after: Sat Nov 13 14:52:47 2010 Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 256 Required extra isize: 28 Desired extra isize: 28 Journal inode: 8 Default directory hash: half_md4 Directory Hash Seed: d0363517-c095-4f53-baa7-7428c02fbfc6 Journal backup: inode blocks Journal size: 128M

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  • Monitor a log file on Linux and send each line to another program

    - by mlambie
    I run an apt-cacher-ng server on Ubuntu Linux which writes logs in the following format: 1299745593|O|149406|XXX.XXX.XXX.XXX|uburep/pool/main/t/tiff/libtiff4_3.9.2-2ubuntu0.4_amd64.deb 1299745593|O|10154976|XXX.XXX.XXX.XXX|uburep/pool/main/l/linux-firmware/linux-firmware_1.34.4_all.deb 1299748529|O|39368|XXX.XXX.XXX.XXX|uburep/pool/main/n/nagios-nrpe/nagios-nrpe-server_2.12-4ubuntu1_amd64.deb 1300155440|O|680100|XXX.XXX.XXX.XXX|uburep/pool/main/t/tzdata/tzdata_2011c-0ubuntu0.10.04_all.deb It shows the timestamp, direction (in or out), byte count, IP and filename. Every time a line is written to it, I'd like to also send that line to another program. I will have this program insert the line into a database so that I can crunch some statistics about how much bandwidth we're saving through operating a caching server. I do not want to cat the log file every X minutes (via cron) looking for new entries as it'd be somewhat computationally uneconomical. Instead I'd prefer to have a daemon monitor the log, and when a change is detected, each line is sent to my database-insertion script. Will swatch achieve this, or are there better options?

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  • Few questions on giga tweaker

    - by user23950
    I better consult first the people here before I do anything unnecessary using this app called giga tweaker. I don't really understand what this increase the performance of your CPU thing. It is under Customization-Memory Management-ram & disk cache of giga tweaker. What will happen if I change the level cache size of l2 cache into the highest possible value which is 8Mb. What are the negative effects of doing it? The file system caching memory, still under Customization-Memory Management-ram & disk cache. What effects will it have on my system which has 2Gb of Ram and 2.50 Ghz of Dual Core CPU. Please enlighten me.

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  • Resume ./configure after solving dependency requirement

    - by pagliuca
    Sorry about my bad English. Here's the question: Is there a way to resume ./configure script from where it stopped just after fixing a dependency requirement? It seems that the script runs for a long time just until it throws me another unsatisfied dependency... After I fix it, the ./configure script starts running from zero again. This would sure save me a few minutes every time I compile a package which I don't have easy access to its dependencies. Does this resuming depend on the publisher providing caching for its configure script, or is there something I can do about that? Any ideas? Thank you.

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  • Using MongoDB + Redis + Apache on the same server in production?

    - by Dayson
    I intend to launch my web app using a 8 GB VPS. It uses MongoDB + Redis for storage/caching and Apache + PHP-FPM for serving requests. Could there be any issues with running Mongo + Redis + Apache on the same server? Would it make more sense to setup 2 x 4 GB VPS servers and keep Mongo on one and Redis + Apache on another? Should I just start with one server and worry about scaling horizontally later by delegating the existing server to Mongo in the future (due to its large RAM) and moving the web servers on to multiple smaller VPS'?

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