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  • [Linux] Incremental search on command line?

    - by florianbw
    I'd like to write small scripts which feature incremental search (find-as-you-type) on the command line. Use case: I have my mobile phone connected via USB, Using gammu --sendsms TEXT I can write text messages. I have the phonebook as CSV, and want to search-as-i-type on that. What's the easiest/best way to do it? It might be in bash/zsh/perl/python or any other scripting language. Thanks!

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  • SSRS Export to Excel not working through VPN (Juniper SA4000)

    - by Veynom
    We have a SharePoint (MOSS 2007 on Win2003 R2) with SSRS reports (from SQL 2005) embedded in it. When we connect to the SharePoint portal through our VPN (firewall is Juniper SA4000) and using Internet Explorer (6, 7, and 8) and try to export any SSRS report under Excel, we get an error message: Internet Explorer cannot download . Internet Explorer was not able to open the internet site. The requested site is either unavailable or cannot be found. Please try again later. When not using the VPN (LAN from the office), everything (exporting under Excel) works fine. When using Firefox through the VPN, it works fine. When exporting to any other format (pdf or text or whatever), everything is fine under both IE and FF. Our firewall people suspect something in SSRS/MOSS/Office. Our MOSS consultants suspect something in the firewall Juniper SA4000. When using Fiddler and when not connected through VPN, I see the following traffic once i click on the "Export button": (Response was a request for client credentials) GET /ReportServer/Reserved.ReportViewerWebControl.axd?ExecutionID=j1pqbvbqkb34qf45fhlgnx55&ControlID=733607a7d607476abb1e6b8794202158&Culture=127&UICulture=9&ReportStack=1&OpType=Export&FileName=Product+Application+Report&ContentDisposition=OnlyHtmlInline&Format=EXCEL HTTP/1.1 Accept: */* Accept-Language: en-US,fr-be;q=0.5 User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB5; .NET CLR 2.0.50727; .NET CLR 1.1.4322; InfoPath.2; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; MS-RTC LM 8; OfficeLiveConnector.1.3; OfficeLivePatch.0.0; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729) Accept-Encoding: gzip, deflate Connection: Keep-Alive Host: r1frchcurdb01.r1.group.corp HTTP/1.1 401 Unauthorized Content-Length: 1656 Content-Type: text/html Server: Microsoft-IIS/6.0 WWW-Authenticate: Negotiate WWW-Authenticate: NTLM X-Powered-By: ASP.NET Date: Mon, 08 Jun 2009 09:25:21 GMT Proxy-Support: Session-Based-Authentication then (Generic Response successful): GET /ReportServer/Reserved.ReportViewerWebControl.axd?ExecutionID=j1pqbvbqkb34qf45fhlgnx55&ControlID=733607a7d607476abb1e6b8794202158&Culture=127&UICulture=9&ReportStack=1&OpType=Export&FileName=Product+Application+Report&ContentDisposition=OnlyHtmlInline&Format=EXCEL HTTP/1.1 Accept: */* Accept-Language: en-US,fr-be;q=0.5 User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB5; .NET CLR 2.0.50727; .NET CLR 1.1.4322; InfoPath.2; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; MS-RTC LM 8; OfficeLiveConnector.1.3; OfficeLivePatch.0.0; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729) Accept-Encoding: gzip, deflate Connection: Keep-Alive Host: r1frchcurdb01.r1.group.corp Authorization: Negotiate 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 HTTP/1.1 200 OK Date: Mon, 08 Jun 2009 09:25:21 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET WWW-Authenticate: Negotiate oYGgMIGdoAMKAQChCwYJKoZIgvcSAQICooGIBIGFYIGCBgkqhkiG9xIBAgICAG9zMHGgAwIBBaEDAgEPomUwY6ADAgEXolwEWm70xlMp4oj/PyvriNMeNDigow6/MX2DpaYQdBfGkiF0Dcc323tHLRBxBL03QpvwdGBxZGAJI6V1G8sc/lVBzhlCNsZkbJcNfnMNgOgc7UPrz+ZVav/EVm3sDQ== X-AspNet-Version: 2.0.50727 Content-Disposition: attachment; filename="Product Application Report.xls" Cache-Control: private Expires: Mon, 08 Jun 2009 09:24:21 GMT Content-Type: application/vnd.ms-excel Content-Length: 23012 When using the VPN, I see no traffic in Fiddler and the error message is displayed before anything else. Update 17/06/2009: I could get a hand on some logs from our SA4000. Maybe this could help more. Info PTR23232 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Start Policy [WEBURL/PROTOCOL] evaluation for resource http://<DB server>:80/ReportServer/Reserved.ReportViewerWebControl.axd?ExecutionID=rua1g355tic24245f2e13lim&ControlID=44168efcd36e461493f7a69962580b91&Culture=127&UICulture=9&ReportStack=1&OpType=Export&FileName=Product+Application+Report&ContentDisposition=OnlyHtmlInline&Format=EXCEL Info PTR23233 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Applying Policy [Enable HTTP 1.1]... Info PTR23240 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Resource filter [http://nsrvnts2:80/*] does not match Info PTR23240 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Resource filter [http://nsrvnts3:80/*] does not match Info PTR23233 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Applying Policy [Disable HTTP 1.1]... Info PTR23239 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Action [HTTP 1.0] is returned Info PTR23234 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Policy [Disable HTTP 1.1] applies to resource Info PTR23308 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Skip Policy [WEBURL/COMPRESSION] evaluation because Compression option is not enabled Info PTR23232 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Start Policy [WEBURL/WEBPDSID] evaluation for resource http://<DB server>:80/ReportServer/Reserved.ReportViewerWebControl.axd?ExecutionID=rua1g355tic24245f2e13lim&ControlID=44168efcd36e461493f7a69962580b91&Culture=127&UICulture=9&ReportStack=1&OpType=Export&FileName=Product+Application+Report&ContentDisposition=OnlyHtmlInline&Format=EXCEL Info PTR23233 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Applying Policy [Corporate BI Portal]... Info PTR23240 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Resource filter [http://<SharePoint>:80/*] does not match Info PTR23240 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Resource filter [http://<SharePoint>/*] does not match Info PTR23235 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - No Policy applies to resource Any tip welcome. :)

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  • Prevent auto mounting Android sdcard under Linux Mint

    - by BullShark
    I recently obtained an older Android phone, so that I could test Android Apps on it. I've needed it because I have a Nexus 7 but not older Android versions, hardware, etc. to test on. I'm having a problem with it under Linux Mint with Cinnamon. When I plug the phone in, or remove and plug the sdcard from the phone back to it while the phone is plugged in, Linux automatically mounts the sdcard. This is a problem because once it is mounted under Linux, it dismounts from the phone running Android 2.3.5, and I can no longer test Android Apps I write that require the sdcard to be present, writable. I went to Menu System Tools System Settings System Details Removable Media, and it brings up this window. I have changed the settings to always "Ask what to do" on "Select how media should be handled". However, the sdcard still gets mounted and then I am asked how I want to open these files (media players, photo importers, file browser, etc.). If I click the checkbox for "Never prompt or start programs on media insertion", then the sdcard is mounted, and I am not asked how to open these files. Eject is just a noob word for Ubuntu users that means umount (unmount) like "Adminstrator" is another ubuntu noob word for the root user. And if I unmount the sdcard, the phone doesn't recognize it again until I take the sdcard out and plug it back in. The phone sees it for a brief moment until Linux Mint takes it over. There are 2 possible solutions and maybe more: 1) Prevent Linux from automounting sdcards some how 2) Tell Android not to allow the computer it is plugged into to take over the sdcard, HOW? Edit: I found out how to prevent the sdcard from being automatically mounted: Now it gets recognized by Linux: bullshark@beastlinux ~ $ dmesg | tail -n 25 [597212.218323] sd 21:0:0:0: [sde] Attached SCSI removable disk [597212.218639] sr 21:0:0:1: Attached scsi CD-ROM sr2 [597212.218910] sr 21:0:0:1: Attached scsi generic sg7 type 5 [597217.139373] sd 21:0:0:0: [sde] 3862528 512-byte logical blocks: (1.97 GB/1.84 GiB) [597217.140726] sd 21:0:0:0: [sde] No Caching mode page present [597217.140735] sd 21:0:0:0: [sde] Assuming drive cache: write through [597217.143595] sd 21:0:0:0: [sde] No Caching mode page present [597217.143602] sd 21:0:0:0: [sde] Assuming drive cache: write through [597217.152240] sde: sde1 [597389.751008] 4:2:1: cannot get freq at ep 0x84 [597390.238742] 4:2:1: cannot get freq at ep 0x84 [597624.903132] sde: detected capacity change from 1977614336 to 0 [597637.677763] sd 21:0:0:0: [sde] 3862528 512-byte logical blocks: (1.97 GB/1.84 GiB) [597637.679616] sd 21:0:0:0: [sde] No Caching mode page present [597637.679626] sd 21:0:0:0: [sde] Assuming drive cache: write through [597637.682508] sd 21:0:0:0: [sde] No Caching mode page present [597637.682515] sd 21:0:0:0: [sde] Assuming drive cache: write through [597637.692758] sde: sde1 [597661.857979] sde: detected capacity change from 1977614336 to 0 [597688.775455] sd 21:0:0:0: [sde] 3862528 512-byte logical blocks: (1.97 GB/1.84 GiB) [597688.776814] sd 21:0:0:0: [sde] No Caching mode page present [597688.776823] sd 21:0:0:0: [sde] Assuming drive cache: write through [597688.780055] sd 21:0:0:0: [sde] No Caching mode page present [597688.780062] sd 21:0:0:0: [sde] Assuming drive cache: write through [597688.788639] sde: sde1 bullshark@beastlinux ~ $ However, the phone still unmounts the sdcard upon being detected by Linux. Linux detects but does not mount, and a few seconds later: Edit #2 (Solution): I solved this one by changing the usb connection type (was usb mass storage) :

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  • I cut-to-move DCIM folder to ext SD when an auto android OS update popped up b4 I could choose target - Cannot recover 200+ photos

    - by ZeroG
    I was downloading my Exhibit II's DCIM camera folder (with month's of photos inside) to its external SD card, in order to transfer them into my laptop. In my overconfidence, I hurriedly chose cut-to-move (rather than copy-to-move) when KABOOM! —an automatic Android OS update popped up before I could choose the target!!! I figured everything was in cache & calmly tried to go through with the update. But that was not a typically seamless event. It showed downloading icon but hmm… since I rooted the phone it brought the command line up & recovery sequence. But neither Android nor I had yet downloaded any alternate custom ROM Files to internal SD to update from! So were they trying to make me unroot my phone by giving me some bogus update on the fly or just give me a hard time in trying to hand me down an unrooted ROM that I'd have to figure out how to root again? Yes, I know there was that blurb about overwriting a file of the same name but I was trying to shake the darn stubborn update being forced on my phone during this precarious moment. I thought I had frozen or turned off all those auto-updates previously. Anyway, phones are small & fingers are big (sigh)... I tried to reboot into safe mode but the resultant photo file was partially overwritten (200 files had names but Zero bytes in them). I thought maybe it was still hung in cache or deposited somewhere else but I have searched everywhere with file managers. Since I did not have Titanium backing up camera, photo folder or gallery, I cannot recover 200+ photos. Dumb. You can understand my dilemma as I am involved in the arts & although just a camera phone, most of these photos were historic & aesthetic or at least as to subject matter. Photo-ops don't reoccur. I have tried a couple of recovery apps from the market like Search Duplicates & Recover to no avail. I was only able to salvage stuff I'd sent out in messages. I've got several decades in computers & this is such a miserable beginner's piece of bad luck I can't believe it happened to me. They were precious photos! Yes, I turned on Titanium since & yes I even tried USB to laptop recoveries. Being on a MacBookPro I'm trying androidfiletransfer.dmg, but I'd have to upgrade to Peach Sunrise to get above Android 3.0 for that App to recognize the phone via USB & the programmer says installation zeros your data, so that pretty much toasts any secret hidden places where these photos may have been deposited. Don't want to do that & am still trying to find them. They certainly didn't make it to my external SD Card. If any of you techies out there know anything, please help & thanks. Despite decades of being in computing, unfamiliar & ever-changing hard or software can humble even the most seasoned veterans.

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  • How mod_cache working with "must-revalidate" and "max-age"?

    - by Dmitriy Sosunov
    Quick question before I will explain my flow: ?an mod_cache perform revalidate with if-none-match only if max-age is expired in case if it configured in reverse proxy mode? My goal is to reduce a number of revalidation requests to our the origin server. For instance: The first request goes to the origin server and then mod_cache save a response in to the cache according to header cache-control: max-age. And only when max-age is expired then mod_cache will revalidate with if-none-match. Currently, mod_cache revalidate each request, regardless that max-age is defined or not. My configuration of Apache 2.4.3 (Windows), on linux I see the same behavior that I will show below. ServerName proxy.lo ProxyRequests Off ProxyPreserveHost Off Header set Vary "Accept, Content-Type, Content-Encoding, Accept-Language" RequestHeader set X-Forwarded-Proto "http" # modify header for user agent's Header set Cache-Control "private, no-cache, no-store, no-transform" CacheQuickHandler off CacheDefaultExpire 300 # the origin server do not provide last-modified CacheIgnoreNoLastMod On CacheIgnoreCacheControl On # the origin server define cache-control: private, no-store only for user agents # Therefore, I would like ignore those headers on the proxy server. CacheStorePrivate On CacheStoreNoStore On CacheEnable disk / CacheRoot "C:/Apache.Cache" CacheDirLevels 5 CacheDirLength 4 CacheMinExpire 15 CacheDetailHeader on CacheHeader on KeepAlive Off ProxyPass / http://origin.lo/ ProxyPassReverse / http://origin.lo/ Also, I have turned on debug log level to see how mod_cache handles a content for caching: I provided this to show that mod_proxy always decides that a content isn't fresh. Why?I provided this to show that mod_proxy always decide that a content isn't fresh. Why? max-age was provided (see below). [Sun Nov 04 11:58:42.899890 2012] [cache:debug] [pid 6492:tid 1400] cache_storage.c(624): [client 192.168.1.100:63741] AH00698: cache: Key for entity /testpage?(null) is http://proxy.lo/testpage? [Sun Nov 04 11:58:42.899890 2012] [cache_disk:debug] [pid 6492:tid 1400] mod_cache_disk.c(569): [client 192.168.1.100:63741] AH00709: Recalled cached URL info header http://proxy.lo/testpage? [Sun Nov 04 11:58:42.899890 2012] [cache_disk:debug] [pid 6492:tid 1400] mod_cache_disk.c(865): [client 192.168.1.100:63741] AH00720: Recalled headers for URL http://proxy.lo/testpage? [Sun Nov 04 11:58:42.899890 2012] [cache:debug] [pid 6492:tid 1400] cache_storage.c(320): [client 192.168.1.100:63741] AH00695: Cached response for /testpage isn't fresh. Adding/replacing conditional request headers. [Sun Nov 04 11:58:42.899890 2012] [cache:debug] [pid 6492:tid 1400] mod_cache.c(414): [client 192.168.1.100:63741] AH00757: Adding CACHE_SAVE filter for /testpage [Sun Nov 04 11:58:42.899890 2012] [cache:debug] [pid 6492:tid 1400] mod_cache.c(448): [client 192.168.1.100:63741] AH00759: Adding CACHE_REMOVE_URL filter for /testpage [Sun Nov 04 11:58:42.899890 2012] [proxy:debug] [pid 6492:tid 1400] mod_proxy.c(1068): [client 192.168.1.100:63741] AH01143: Running scheme http handler (attempt 0) [Sun Nov 04 11:58:42.899890 2012] [proxy:debug] [pid 6492:tid 1400] proxy_util.c(1976): AH00942: HTTP: has acquired connection for (origin.lo) [Sun Nov 04 11:58:42.899890 2012] [proxy:debug] [pid 6492:tid 1400] proxy_util.c(2029): [client 192.168.1.100:63741] AH00944: connecting http://origin.lo/testpage to origin.lo:80 [Sun Nov 04 11:58:42.901890 2012] [proxy:debug] [pid 6492:tid 1400] proxy_util.c(2151): [client 192.168.1.100:63741] AH00947: connected /testpage to origin.lo:80 [Sun Nov 04 11:58:42.901890 2012] [proxy:debug] [pid 6492:tid 1400] proxy_util.c(2554): AH00962: HTTP: connection complete to 192.168.1.100:80 (origin.lo) [Sun Nov 04 11:58:42.903890 2012] [proxy:debug] [pid 6492:tid 1400] proxy_util.c(1991): AH00943: http: has released connection for (origin.lo) [Sun Nov 04 11:58:42.903890 2012] [headers:debug] [pid 6492:tid 1400] mod_headers.c(800): AH01502: headers: ap_headers_output_filter() [Sun Nov 04 11:58:42.903890 2012] [cache:debug] [pid 6492:tid 1400] mod_cache.c(1190): [client 192.168.1.100:63741] AH00769: cache: Caching url: /testpage [Sun Nov 04 11:58:42.903890 2012] [cache:debug] [pid 6492:tid 1400] mod_cache.c(1196): [client 192.168.1.100:63741] AH00770: cache: Removing CACHE_REMOVE_URL filter. [Sun Nov 04 11:58:42.904890 2012] [cache_disk:debug] [pid 6492:tid 1400] mod_cache_disk.c(1318): [client 192.168.1.100:63741] AH00737: commit_entity: Headers and body for URL http://proxy.lo/testpage? cached. The first request to the origin server without mod_proxy to http://origin.lo/ GET http://origin.lo/testpage HTTP/1.1 Host: origin.lo Connection: keep-alive User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.94 Safari/537.4 Accept: application/json Accept-Encoding: gzip,deflate,sdch Accept-Language: en-US,en;q=0.8 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3 The first response from the origin without mod_proxy HTTP/1.1 200 OK Cache-Control: must-revalidate, proxy-revalidate, max-age=30 Content-Type: application/json; charset=utf-8 ETag: "7cf651e2-176f-4ac1-808e-0e0c17cfd0a2" Server: Microsoft-IIS/7.5 X-AspNet-Version: 4.0.30319 X-Powered-By: ASP.NET Date: Sun, 04 Nov 2012 10:11:01 GMT Content-Length: 1877 So, I assumed that revalidation must be occur only in 30 seconds after the success response. Is't right? Let's check it:) Within 30 sec, the Google Chrome didn't perform any requests to the origin server to revalidate a request and has return the response from local cache. When max-age is expired, the Google Chrome perform a request to revalidate: GET http://origin.lo/testpage HTTP/1.1 Host: origin.lo Connection: keep-alive Cache-Control: max-age=0 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.94 Safari/537.4 Accept: application/xml If-None-Match: "7cf651e2-176f-4ac1-808e-0e0c17cfd0a2" Accept-Encoding: gzip,deflate,sdch Accept-Language: en-US,en;q=0.8 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3 and response: HTTP/1.1 304 Not Modified Cache-Control: must-revalidate, proxy-revalidate, max-age=30 ETag: "7cf651e2-176f-4ac1-808e-0e0c17cfd0a2" Server: Microsoft-IIS/7.5 X-AspNet-Version: 4.0.30319 X-Powered-By: ASP.NET Date: Sun, 04 Nov 2012 10:16:20 GMT As you can see, all works as expected. User agent revalidates request only when max-age is expired. Let's now try perform the folling flow though mod_proxy (see configuration above). The first request: GET http://proxy.lo/testpage HTTP/1.1 Host: proxy.lo Connection: keep-alive User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.94 Safari/537.4 Accept: application/json Accept-Encoding: gzip,deflate,sdch Accept-Language: en-US,en;q=0.8 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3 and the response was: HTTP/1.1 200 OK Date: Sun, 04 Nov 2012 10:23:36 GMT Server: Apache Cache-Control: private, no-cache, no-store, no-transform Content-Type: application/json; charset=utf-8 ETag: "7cf651e2-176f-4ac1-808e-0e0c17cfd0a2" Content-Length: 1932 Vary: Accept,Content-Type,Content-Encoding,Accept-Language X-Cache: MISS from proxy.lo X-Cache-Detail: "cache miss: attempting entity save" from proxy.lo Connection: close Ok, let's see to the disk cache and try to see how request and response was stored. (I cut binary data) http://proxy.lo/testpage? Cache-Control: private, no-cache, no-store, no-transform Content-Type: application/json; charset=utf-8 ETag: "7cf651e2-176f-4ac1-808e-0e0c17cfd0a2" Date: Sun, 04 Nov 2012 10:27:15 GMT Content-Length: 1932 Vary: Accept, Content-Type, Content-Encoding, Accept-Language Host: proxy.lo User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.94 Safari/537.4 Accept: application/json Accept-Encoding: gzip,deflate,sdch Accept-Language: en-US,en;q=0.8 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3 X-Forwarded-Proto: http Cache-Control: max-age=300, must-revalidate X-Forwarded-For: 192.168.1.100 X-Forwarded-Host: proxy.lo X-Forwarded-Server: origin.lo Ok, what we see? We see that the first request was performed with max-age=300 & must-revalidate Ok, looks good, as for me, lets perform the next call: GET http://proxy.lo/testpage HTTP/1.1 Host: proxy.lo Connection: keep-alive User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.94 Safari/537.4 Accept: application/json Accept-Encoding: gzip,deflate,sdch Accept-Language: en-US,en;q=0.8 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3 and the second response from mod_proxy: HTTP/1.1 200 OK Date: Sun, 04 Nov 2012 10:31:58 GMT Server: Apache Cache-Control: private, no-cache, no-store, no-transform ETag: "7cf651e2-176f-4ac1-808e-0e0c17cfd0a2" Content-Length: 1932 Vary: Accept,Content-Type,Content-Encoding,Accept-Language X-Cache: REVALIDATE from proxy.lo X-Cache-Detail: "conditional cache hit: entity refreshed" from proxy.lo Connection: close Content-Type: application/json; charset=utf-8 SO, MY QUESTION IS: WHY mod_proxy perform revalidation on each request regardless that max-age is defined? N.B. Apache 2.4.3 Thanks, I would be grateful for any help.

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  • Strange Recurrent Excessive I/O Wait

    - by Chris
    I know quite well that I/O wait has been discussed multiple times on this site, but all the other topics seem to cover constant I/O latency, while the I/O problem we need to solve on our server occurs at irregular (short) intervals, but is ever-present with massive spikes of up to 20k ms a-wait and service times of 2 seconds. The disk affected is /dev/sdb (Seagate Barracuda, for details see below). A typical iostat -x output would at times look like this, which is an extreme sample but by no means rare: iostat (Oct 6, 2013) tps rd_sec/s wr_sec/s avgrq-sz avgqu-sz await svctm %util 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16.00 0.00 156.00 9.75 21.89 288.12 36.00 57.60 5.50 0.00 44.00 8.00 48.79 2194.18 181.82 100.00 2.00 0.00 16.00 8.00 46.49 3397.00 500.00 100.00 4.50 0.00 40.00 8.89 43.73 5581.78 222.22 100.00 14.50 0.00 148.00 10.21 13.76 5909.24 68.97 100.00 1.50 0.00 12.00 8.00 8.57 7150.67 666.67 100.00 0.50 0.00 4.00 8.00 6.31 10168.00 2000.00 100.00 2.00 0.00 16.00 8.00 5.27 11001.00 500.00 100.00 0.50 0.00 4.00 8.00 2.96 17080.00 2000.00 100.00 34.00 0.00 1324.00 9.88 1.32 137.84 4.45 59.60 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22.00 44.00 204.00 11.27 0.01 0.27 0.27 0.60 Let me provide you with some more information regarding the hardware. It's a Dell 1950 III box with Debian as OS where uname -a reports the following: Linux xx 2.6.32-5-amd64 #1 SMP Fri Feb 15 15:39:52 UTC 2013 x86_64 GNU/Linux The machine is a dedicated server that hosts an online game without any databases or I/O heavy applications running. The core application consumes about 0.8 of the 8 GBytes RAM, and the average CPU load is relatively low. The game itself, however, reacts rather sensitive towards I/O latency and thus our players experience massive ingame lag, which we would like to address as soon as possible. iostat: avg-cpu: %user %nice %system %iowait %steal %idle 1.77 0.01 1.05 1.59 0.00 95.58 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn sdb 13.16 25.42 135.12 504701011 2682640656 sda 1.52 0.74 20.63 14644533 409684488 Uptime is: 19:26:26 up 229 days, 17:26, 4 users, load average: 0.36, 0.37, 0.32 Harddisk controller: 01:00.0 RAID bus controller: LSI Logic / Symbios Logic MegaRAID SAS 1078 (rev 04) Harddisks: Array 1, RAID-1, 2x Seagate Cheetah 15K.5 73 GB SAS Array 2, RAID-1, 2x Seagate ST3500620SS Barracuda ES.2 500GB 16MB 7200RPM SAS Partition information from df: Filesystem 1K-blocks Used Available Use% Mounted on /dev/sdb1 480191156 30715200 425083668 7% /home /dev/sda2 7692908 437436 6864692 6% / /dev/sda5 15377820 1398916 13197748 10% /usr /dev/sda6 39159724 19158340 18012140 52% /var Some more data samples generated with iostat -dx sdb 1 (Oct 11, 2013) Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await svctm %util sdb 0.00 15.00 0.00 70.00 0.00 656.00 9.37 4.50 1.83 4.80 33.60 sdb 0.00 0.00 0.00 2.00 0.00 16.00 8.00 12.00 836.00 500.00 100.00 sdb 0.00 0.00 0.00 3.00 0.00 32.00 10.67 9.96 1990.67 333.33 100.00 sdb 0.00 0.00 0.00 4.00 0.00 40.00 10.00 6.96 3075.00 250.00 100.00 sdb 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4.00 0.00 0.00 100.00 sdb 0.00 0.00 0.00 2.00 0.00 16.00 8.00 2.62 4648.00 500.00 100.00 sdb 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2.00 0.00 0.00 100.00 sdb 0.00 0.00 0.00 1.00 0.00 16.00 16.00 1.69 7024.00 1000.00 100.00 sdb 0.00 74.00 0.00 124.00 0.00 1584.00 12.77 1.09 67.94 6.94 86.00 Characteristic charts generated with rrdtool can be found here: iostat plot 1, 24 min interval: http://imageshack.us/photo/my-images/600/yqm3.png/ iostat plot 2, 120 min interval: http://imageshack.us/photo/my-images/407/griw.png/ As we have a rather large cache of 5.5 GBytes, we thought it might be a good idea to test if the I/O wait spikes would perhaps be caused by cache miss events. Therefore, we did a sync and then this to flush the cache and buffers: echo 3 > /proc/sys/vm/drop_caches and directly afterwards the I/O wait and service times virtually went through the roof, and everything on the machine felt like slow motion. During the next few hours the latency recovered and everything was as before - small to medium lags in short, unpredictable intervals. Now my question is: does anybody have any idea what might cause this annoying behaviour? Is it the first indication of the disk array or the raid controller dying, or something that can be easily mended by rebooting? (At the moment we're very reluctant to do this, however, because we're afraid that the disks might not come back up again.) Any help is greatly appreciated. Thanks in advance, Chris. Edited to add: we do see one or two processes go to 'D' state in top, one of which seems to be kjournald rather frequently. If I'm not mistaken, however, this does not indicate the processes causing the latency, but rather those affected by it - correct me if I'm wrong. Does the information about uninterruptibly sleeping processes help us in any way to address the problem? @Andy Shinn requested smartctl data, here it is: smartctl -a -d megaraid,2 /dev/sdb yields: smartctl 5.40 2010-07-12 r3124 [x86_64-unknown-linux-gnu] (local build) Copyright (C) 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net Device: SEAGATE ST3500620SS Version: MS05 Serial number: Device type: disk Transport protocol: SAS Local Time is: Mon Oct 14 20:37:13 2013 CEST Device supports SMART and is Enabled Temperature Warning Disabled or Not Supported SMART Health Status: OK Current Drive Temperature: 20 C Drive Trip Temperature: 68 C Elements in grown defect list: 0 Vendor (Seagate) cache information Blocks sent to initiator = 1236631092 Blocks received from initiator = 1097862364 Blocks read from cache and sent to initiator = 1383620256 Number of read and write commands whose size <= segment size = 531295338 Number of read and write commands whose size > segment size = 51986460 Vendor (Seagate/Hitachi) factory information number of hours powered up = 36556.93 number of minutes until next internal SMART test = 32 Error counter log: Errors Corrected by Total Correction Gigabytes Total ECC rereads/ errors algorithm processed uncorrected fast | delayed rewrites corrected invocations [10^9 bytes] errors read: 509271032 47 0 509271079 509271079 20981.423 0 write: 0 0 0 0 0 5022.039 0 verify: 1870931090 196 0 1870931286 1870931286 100558.708 0 Non-medium error count: 0 SMART Self-test log Num Test Status segment LifeTime LBA_first_err [SK ASC ASQ] Description number (hours) # 1 Background short Completed 16 36538 - [- - -] # 2 Background short Completed 16 36514 - [- - -] # 3 Background short Completed 16 36490 - [- - -] # 4 Background short Completed 16 36466 - [- - -] # 5 Background short Completed 16 36442 - [- - -] # 6 Background long Completed 16 36420 - [- - -] # 7 Background short Completed 16 36394 - [- - -] # 8 Background short Completed 16 36370 - [- - -] # 9 Background long Completed 16 36364 - [- - -] #10 Background short Completed 16 36361 - [- - -] #11 Background long Completed 16 2 - [- - -] #12 Background short Completed 16 0 - [- - -] Long (extended) Self Test duration: 6798 seconds [113.3 minutes] smartctl -a -d megaraid,3 /dev/sdb yields: smartctl 5.40 2010-07-12 r3124 [x86_64-unknown-linux-gnu] (local build) Copyright (C) 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net Device: SEAGATE ST3500620SS Version: MS05 Serial number: Device type: disk Transport protocol: SAS Local Time is: Mon Oct 14 20:37:26 2013 CEST Device supports SMART and is Enabled Temperature Warning Disabled or Not Supported SMART Health Status: OK Current Drive Temperature: 19 C Drive Trip Temperature: 68 C Elements in grown defect list: 0 Vendor (Seagate) cache information Blocks sent to initiator = 288745640 Blocks received from initiator = 1097848399 Blocks read from cache and sent to initiator = 1304149705 Number of read and write commands whose size <= segment size = 527414694 Number of read and write commands whose size > segment size = 51986460 Vendor (Seagate/Hitachi) factory information number of hours powered up = 36596.83 number of minutes until next internal SMART test = 28 Error counter log: Errors Corrected by Total Correction Gigabytes Total ECC rereads/ errors algorithm processed uncorrected fast | delayed rewrites corrected invocations [10^9 bytes] errors read: 610862490 44 0 610862534 610862534 20470.133 0 write: 0 0 0 0 0 5022.480 0 verify: 2861227413 203 0 2861227616 2861227616 100872.443 0 Non-medium error count: 1 SMART Self-test log Num Test Status segment LifeTime LBA_first_err [SK ASC ASQ] Description number (hours) # 1 Background short Completed 16 36580 - [- - -] # 2 Background short Completed 16 36556 - [- - -] # 3 Background short Completed 16 36532 - [- - -] # 4 Background short Completed 16 36508 - [- - -] # 5 Background short Completed 16 36484 - [- - -] # 6 Background long Completed 16 36462 - [- - -] # 7 Background short Completed 16 36436 - [- - -] # 8 Background short Completed 16 36412 - [- - -] # 9 Background long Completed 16 36404 - [- - -] #10 Background short Completed 16 36401 - [- - -] #11 Background long Completed 16 2 - [- - -] #12 Background short Completed 16 0 - [- - -] Long (extended) Self Test duration: 6798 seconds [113.3 minutes]

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  • Hardware recommendations / parts list for a modern, quiet ZFS NAS box - 2011-Feb edition [closed]

    - by dandv
    I want to build some really reliable storage for my data, and it seems that ZFS is the only filesystem at the moment that does live checksumming. That rules out DroboPro, so I'm looking to building a quiet ZFS NAS that would start with 4 2TB or larger hard drives. I'd like this system to be very reliable and relatively future-proof for 2-3 years, so I'm willing to invest some $$$ and buy higher end components. I did see questions here and on other forums about low-cost servers, but I'm not looking for those. I'd be super happy to go for an off-the-shelf solution, but I haven't found one that's quiet. I started doing the research (summarized on my wiki), but I realized that it just gets too complicated for what I know as a software dude, and I'm entering the analysis paralysis area. At this point, I'm basically looking for a parts list for a configuration that will work (and is modern), and I know there are folks around here who are way more competent than me. I've built computers and am comfortable assembling one and messing with *nix; I can follow guides; I just want to end the decision process for the hardware and software configuration. What I've researched so far (not that these are very modern components): Case: I think I've settled on the Antec Twelve Hundred case because it cools well, is quiet, and simply has 12 bays that allow elastic mounting. The SilverStone Raven is its counter-candidate, but I find its construction quite odd. For the PSU, I'm torn between Antec CP-850 and Nexus RX-8500, but I did this research more than a year ago. The Nexus has a very uniform power profile, and I'd rather not have the Antec spin up and down based on load. On the other hand, I'm not sure how often my file server will draw more than 400W under use. For the hard drives, I've read that WD Black drives are actually WD RE3 with a software setting changed. I'd also like to buy different drive types, not just 4 WDs. Recommendations? Right now I have a 2TB Hitachi Deskstar 7K300. For the motherboard, CPU and RAM I have no idea, other than the RAM must be ECC. I already asked a question here about ECC RAM, but I was misguided and was looking for a motherboard that would support USB 3.0 as well. I've learned to go with eSATA, or worry about USB later. Then there's the (liquid) cooling, Wi-Fi card, and FreeBSD vs. OpenSolaris Express. Lastly, I'm wondering if I can make this PC into a media server by adding a Blu-ray drive and a good sound card. But support for Blu-Ray is spotty on Linux, and I don't know if Windows 7 on VirtualBox would get sufficient hardware access to output HDMI or SPDIFF signals. (Running OpenSolaris virtualized is not an option because of the reliability risk.) Then there are HDCP concerns. Suggestions on that would be appreciated as well, but I don't want us to get sidetracked. A specific shopping list on the core components would be great, so I can start ordering, and in the meantime educate myself with regards to the other issues. Finally, I think this could become a great FAQ for those technically inclined to build their own ZFS server, but confused by the dizzying array of options out there, and I promise to compile the results and share my experience building and benchmarking the server.

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  • Windows 7 inbuilt and 3rd party (de)fragmentation related queries

    - by Karan
    I have a pretty good idea of how files end up getting fragmented. That said, I just copied ~3,200 files of varying sizes (from a few KB to ~20GB) from an external USB HDD to an internal, freshly formatted (under Windows 7 x64), NTFS, 2TB, 5400RPM, WD, SATA, non-system (i.e. secondary) drive, filling it up 57%. Since it should have been very much possible for each file to have been stored in one contiguous block, I expected the drive to be fragmented not more than 1-2% at most after this rather lengthy exercise (unfortunately this older machine doesn't support USB 3.0). Windows 7's inbuilt defrag utility told me after a quick analysis that the drive was fragmented only 1% or so, which dovetailed neatly with my expectations. However, just out of curiosity I downloaded and ran the latest portable x64 version of Piriform's Defraggler, and was shocked to see the drive being reported as being ~85% fragmented! The portable version of Auslogics Disk Defrag also agreed with Defraggler, and both clearly expected to grind away for ~10 hours to completely defragment the drive. 1) How in blazes could the inbuilt and 3rd party defrag utils disagree so badly? I mean, 10-20% variance is probably understandable, but 1% and 85% are miles apart! This Engineering Windows 7 blog post states: In Windows XP, any file that is split into more than one piece is considered fragmented. Not so in Windows Vista if the fragments are large enough – the defragmentation algorithm was changed (from Windows XP) to ignore pieces of a file that are larger than 64MB. As a result, defrag in XP and defrag in Vista will report different amounts of fragmentation on a volume. ... [Please read the entire post so the quote is not taken out of context.] Could it simply be that the 3rd party defrag utils ignore this post-XP change and continue to use analysis algos similar to those XP used? 2) Assuming that the 3rd party utils aren't lying about the real extent of fragmentation (which Windows is downplaying post-XP), how could the files have even got fragmented so badly given they were just copied over afresh to an empty drive? 3) If vastly differing analysis algos explain the yawning gap, which do I believe? I'm no defrag fanatic for sure, but 85% is enough to make me seriously consider spending 10 hours defragging this drive. On the other hand, 1% reported by Windows' own defragger clearly implies that there is no cause for concern and defragging would actually have negative consequences (as per the post). Is Windows' assumption valid and should I just let it be, or will there be any noticeable performance gains after running one of the 3rd party utils for 10 hours straight? 4) I see that out of the box Windows 7 defrag is scheduled to run weekly. Does anyone know whether it defrags every single time, or only if its analysis reveals a fragmentation percentage over a set threshold? If the latter, what is this threshold and can it be changed, maybe via a Registry edit? Thanks for reading through (my first query on this wonderful site!) and for any helpful replies. Also, if you're answering question #3, please keep in mind that any speed increases post defragging with 3rd party utils vis-à-vis Windows' inbuilt program should not include pre-Vista (preferably pre-Win7) examples. Further, examples of programs that made your system boot faster won't help in this case, since this is a non-system drive (although one that'll still be used daily).

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  • Using different SSDs types (not only SATA based) as system drive

    - by Hubert Kario
    Currently I have a Thinkpad X61s and want to make it both a bit faster and a bit more power efficient. For that reason I thought that adding SSD drive would make most sense. Unfortunately, because of financial reasons, buying SSD of over 200GB capacity is out of reach for me (not only it would be worth more than the rest of the laptop, but also I currently have a 500GB drive in it, so even such a drive would be kind of a downgrade for me). During preliminary testing with a cheap Transcend 4GB Class 6 (14MiB/s streaming, 9MiB/s random read) card I experienced boot times to be reduced by half so putting the OS only on it would already would be an improvement. Unfortunately, my system now is about 11GiB in size so anything less than 16GB would be constraining. In this laptop I can connect additional drives on at least 5 different ways: using SATA-ATA converter caddy in the X6 Ultrabase using internal mini PCIe slot using integrated SDHC slot using CardBus (a.k.a PCMCIA or PC Card) slot using USB Thankfully, because I use only Linux on this PC the bootability of them is irrelevant as I can put the /boot partition on internal HDD and / on any of the above mentioned Flash memories (as I already did for the SDHC test). From what I was able to research and from my own experience those options come with rather big downsides or other problems: SATA-ATA caddy It has three downsides: I have to carry the Ultrabse with me at all times (it's not really inconvenient, but those grams do add) and couldn't disconnect it when I want to disconnect the battery It makes the bay unusable for the optical drive and occasional quick access to other hard drives the only caddies I could buy have rather flaky controllers in them so putting my OS on it would hamper its stability Internal mini PCIe slot This would be an ideal solution, if only I could find real PCIe SSDs, not only devices that could talk only SATA or ATA over PCIe mechanical connection (the ones used in Dell Mini or Asus EEE). Theoretically Samsung did release such devices but I couldn't find them in retail anywhere. Integrated SDHC slot It's a nice solution with a single drawback: the fastest 16GB SDHC card on the market can only do around 35MiB/s read and 15MiB/s write while still costing like a normal 40GB SATA SSD that's 10 times faster. Not really cost-effective. CardBus (a.k.a PCMCIA or PC Card) slot Those cards are much faster than the SDHC option (there are ones that can do well over 50MiB/s read in benchmarks) and from what I could find the PCMCIA controller in my laptop does support UDMA so it should be able to deliver comparable speeds. They still cost similarly to SD cards but at least they provide streaming performance comparable to my current HDD. USB That's the worst option. Not only is it limited to 20-30MiB/s by the interface itself the drive would stick out of the laptop so it's a big no no. The question As such I think that going the "CF in a CardBus adapter" route will be the best option. My question is: did anyone try using CF cards in CardBus adapters as system drives with Linux on Thinkpad laptops? Laptops in general? What was the real-world performance? I don't have any CF cards so I can't check how well does it work with suspend/resume, or whatever it's easy to make it work in initramfs (I'm using ArchLinux and SD card was trivial — add 3 modules in single config line and rebuilding initramfs) so any tips/gotchas on this are welcome as well.

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  • how to adjust the size of the root partition on live arch linux system (/dev/mapper/arch_root-image)

    - by leon
    Summary: I created a bootable usb drive with a live Bridge linux (ARCH based) on it. Everything works fine. The live system mounts a device called /dev/mapper/arch_root-image as its ext4 root partition (/ mount point). The problem is that I dont know how to control the size of this partition. This is not a Bridge specific issue (also happens with Archbang) Detail: My usb drive has a dos partition table with 2 ext2 partitions $ fdisk -l /dev/sdb Disk /dev/sdb: 29,8 GiB, 32006733824 bytes, 62513152 sectors Unités : secteur de 1 × 512 = 512 octets Taille de secteur (logique / physique) : 512 octets / 512 octets taille d'E/S (minimale / optimale) : 512 octets / 512 octets Type d'étiquette de disque : dos Identifiant de disque : 0x0007b7e2 Périphérique Amorçage Début Fin Blocs Id Système /dev/sdb1 * 2048 2002943 1000448 83 Linux /dev/sdb2 2002944 32258047 15127552 83 Linux sdb1 is approx 1GB and sdb2 is 14GB. The live system is on sdb1. sdb2 is empty. Now when I boot the live system, its filesystem looks like this: $ mount proc on /proc type proc (rw,nosuid,nodev,noexec,relatime) sys on /sys type sysfs (rw,nosuid,nodev,noexec,relatime) dev on /dev type devtmpfs (rw,nosuid,relatime,size=505272k,nr_inodes=126318,mode=755) run on /run type tmpfs (rw,nosuid,nodev,relatime,mode=755) /dev/sda1 on /run/archiso/bootmnt type ext2 (ro,relatime) cowspace on /run/archiso/cowspace type tmpfs (rw,relatime,size=772468k,mode=755) /dev/loop0 on /run/archiso/sfs/root-image type squashfs (ro,relatime) /dev/mapper/arch_root-image on / type ext4 (rw,relatime) securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime) tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev) devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000) tmpfs on /sys/fs/cgroup type tmpfs (rw,nosuid,nodev,noexec,mode=755) cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd) pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime) cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset) cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuacct,cpu) cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory) cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices) cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer) cgroup on /sys/fs/cgroup/net_cls type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls) cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio) mqueue on /dev/mqueue type mqueue (rw,relatime) debugfs on /sys/kernel/debug type debugfs (rw,relatime) hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime) configfs on /sys/kernel/config type configfs (rw,relatime) systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=36,pgrp=1,timeout=300,minproto=5,maxproto=5,direct) tmpfs on /tmp type tmpfs (rw) tmpfs on /etc/pacman.d/gnupg type tmpfs (rw,relatime,mode=755) As we can see, the root partition is from the device /dev/mapper/arch_root-image and my problem is that the live system recognizes it as a 3.9GB drive $ df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/arch_root-image 3.9G 1.9G 2.1G 48% / dev 494M 0 494M 0% /dev run 503M 23M 481M 5% /run /dev/sda1 962M 590M 324M 65% /run/archiso/bootmnt cowspace 755M 32M 723M 5% /run/archiso/cowspace /dev/loop0 520M 520M 0 100% /run/archiso/sfs/root-image tmpfs 503M 132K 503M 1% /dev/shm tmpfs 503M 0 503M 0% /sys/fs/cgroup tmpfs 503M 360K 503M 1% /tmp tmpfs 503M 896K 503M 1% /etc/pacman.d/gnupg My question is how is this size controled? I suspect this is related to the content of the aitab file which is part of the Bridge iso image: $ cat aitab # <img> <mnt> <arch> <sfs_comp> <fs_type> <fs_size> root-image / i686 xz ext4 50% I have read https://wiki.archlinux.org/index.php/archiso#aitab but found no clue

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  • how to install 'version.h' in ubuntu ?

    - by user252098
    Just now , I try to install the Jungo WinDriver in the Ubuntu 13.10 . But I am puzzled by the its manual of how to Install version.h : Install version.h: The file version.h is created when you first compile the Linux kernel source code. Some distributions provide a compiled kernel without the file version.h. Look under /usr/src/linux/include/linux to see whether you have this file. If you do not, follow these steps: Become super user: $ su Change directory to the Linux source directory: # cd /usr/src/linux Type: # make xconfig Save the configuration by choosing Save and Exit. Type: # make dep Exit super user mode: # exit But the shell says: warning: make dep is unnecessary now. Then, I found out there is a version.h in /usr/src/linux-headers-3.11.0.12-generic, so I type: /usr/src/windriver/redist# ./configure --with-kernel-source=/usr/src/linux-headers-3.11.0.12-generic But, the windriver run fails: USE_KBUILD = yes checking for cpu architecture... x86_64 checking for WinDriver root directory... /usr/src/WinDriver checking for linux kernel source... found at /usr/src/linux checking for lib directory... ln -sf $(ROOT_DIR)/lib/$(SHARED_OBJECT)_32.so /usr/lib/$(SHARED_OBJECT).so; ln -s /usr/lib /usr/lib64; ln -sf $(ROOT_DIR)/lib/$(SHARED_OBJECT).so /usr/lib64/$(SHARED_OBJECT).so checking which directories to include... -I/usr/src/linux/include checking linux kernel version... 3.11.10.6 checking for modules installation directory... /lib/modules/3.11.0-12-generic/kernel/drivers/misc checking output directory... LINUX.3.11.0-12-generic.x86_64 checking target... LINUX.3.11.0-12-generic.x86_64/windrvr6_usb.ko checking for regparm kernel option... find: `/usr/src/WinDriver/redist/.tmp_driver/.tmp_versions': No such file or directory 0 checking for modpost location... /usr/src/linux/scripts/mod/modpost configure.usb: creating ./config.status config.status: creating makefile.usb.kbuild checking for cpu architecture... x86_64 checking for WinDriver root directory... /usr/src/WinDriver checking for linux kernel source... found at /usr/src/linux checking for lib directory... ln -sf $(ROOT_DIR)/lib/$(SHARED_OBJECT)_32.so /usr/lib/$(SHARED_OBJECT).so; ln -s /usr/lib /usr/lib64; ln -sf $(ROOT_DIR)/lib/$(SHARED_OBJECT).so /usr/lib64/$(SHARED_OBJECT).so checking which directories to include... -I/usr/src/linux/include checking linux kernel version... 3.11.10.6 checking for modules installation directory... /lib/modules/3.11.0-12-generic/kernel/drivers/misc checking output directory... LINUX.3.11.0-12-generic.x86_64 checking target... LINUX.3.11.0-12-generic.x86_64/windrvr6.ko checking for regparm kernel option... find: `/usr/src/WinDriver/redist/.tmp_driver/.tmp_versions': No such file or directory 0 checking for right linked object... windrvr_gcc_v3.a checking for modpost location... /usr/src/linux/scripts/mod/modpost configure.wd: creating ./config.status config.status: creating makefile.wd.kbuild What is the problem?

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  • Cannot open xls file in IE

    - by Vladimir Bezugliy
    We have JSF web application that generates XLS file and gives user link to thes file. All works fine if access this file via HTTP. But IE(8) cannot open/save this xls file via HTTPS. There is following error message: Internet Explorer cannot download ...466088C5C313F92808BDB0AFF3447 from testhost. Internet Explorer was not able to open this Internet site. The requested site is either unavailable or cannot be found. Please try again later. I can open the same document via HTTPS in Firefox and in Chrome. What can be the problem with IE? Headers: HTTP/1.1 200 OK Date: Fri, 18 Jun 2010 14:45:42 GMT Server: Apache-Coyote/1.1 X-Powered-By: Servlet 2.5; JBoss-5.0/JBossWeb-2.1 X-UA-Compatible: IE=EmulateIE7 Last-Modified: Fri, 18 Jun 2010 14:45:11 GMT Cache-control: max-age=0, no-store, no-cache Pragma: no-cache Expires: 0 Content-Type: application/vnd.ms-excel Content-Length: 6656 Keep-Alive: timeout=5, max=100 Connection: Keep-Alive

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  • Using ExpressionEngine or Joomla templates inside a pre-existing page?

    - by Ethan
    Hey SO, So I'm new to both Joomla and Expression Engine, and want to know if I can use it like I'd like. I've already made a full site, and would like to integrate blogging into the site. The site is on CodeIgniter. Is there a way that I could create a form template for submitting a post which would then save to my Joomla/CodeIgniter DB. Then, on a different page, use a different Joomla/CodeIgniter template to display the blog in the form I would like. Note that this wouldn't necessarily be powered by EE or Joomla. From what I understand, and from all the examples I've seen, you have to make the html of the entire page inside of their templates. At worst, if neither work, is there anything I can use to do this? Thanks!

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  • Django URL resolving infrastructure stops working

    - by btol45
    We recently launched a new Django-powered website, and we are experiencing the oddest bug: The site is running under Apache with mod_fastcgi. Everything works fine for a while, and then the URL tag and reverse() functionality stops working. Instead of returning the expected URL, they return "". We haven't noticed anything in Apache's log file; there are no errors being generated by Django. And (the kicker) the problem only occurs in production mode; we can't reproduce it when DEBUG=True. Any thoughts on where we should be looking for the problem?

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  • nginx + passenger not using rackup file

    - by Callum Jones
    I have an issue where Passenger is not detecting the config.ru file for the following nginx server server { listen 80; passenger_enabled on; server_name callumj.com cjlondon.com; access_log logs/callumj.access.log; root /webapps/callumj_com/public; } Nginx just seems to ignore it and treat it as a normal web page (as I get forbidden areas when it tries to look for index.html in public). I have verified that the rackup command and execute config.ru and it boots up sucessfully. I have another server directive much like this which is powered by Rails and it seems to be working perfectly. Am I missing something? Thanks in advance!

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  • How to make screenshots using VMWare tool "vmrun"?

    - by youllknow
    Hi everybody! I'm currently working with the vmrun-Tool, to control VMWare Virtual Machines. I'm using VMWareWorkstation 7.0.0/7.0.1 and VMWarePlayer 3.0.0 on Windows 7 x64. I simply want to take a screenshot of each virtual machine which is powered on. Listing the power-on virtual machines is quite simply and works! (vmrun list) But the captureScreen command doesn't work. I have tryed serveral commandline options. for example: vmrun -T ws captureScreen %VMPATH% %OUTPUTPATH% I get no error message, but the console is blocked (and the command never finishes). I have also tryed to include -gu USERNAME and -gp PASSWORD, but it result in the same problem. Sorry for my English and thanks for your help in advance!!!

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  • Getting IIS6 to play nice with WordPress Pretty Permalinks

    - by Ptah Dunbar
    I've got a WordPress powered blog that I'm trying to get setup on our IIS6 server and everything works besides the permalink structure which I'm having a big headache with. After googling around/wordpress codex I learned that it's because IIS6 doesn't have the equivalent of Apache's mod_rewrite which is required for this feature to work. So that's where I'm at now. I can't seem to find a functional solution to get the pretty permalinks to work without the "index.php/," anyone have any recommendations? What I can't do: Upgrade to IIS7 Switch to Apache Quit my job Those suggestions have been offered to me, which sadly, I can't do any of those. Just an, FYI. Much thanks for anyone who can lead me in the right direction.

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  • Rendering spatial data of GeoQuerySet in a custom view on GeoDjango

    - by dmytro
    Hello. I have just started my first project on GeoDjango. As a matter of fact, with GeoDjango powered Admin application we all have a great possibility to view/edit spatial data, associated with the current object. The problem is that after the objects having been populated I need to render several objects' associated geometry at once on a single map. I might implement it as a model action, redirecting to a custom view. I just don't know, how to include the OpenLayers widget in the view and how to render there my compound geometry from my GeoQuerySet. I would be very thankful for any hint from an experienced GeoDjango programmer.

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  • Multilingual support using gettext with codeigniter, best practice?

    - by tobefound
    I know how to create .po files and how to generate .mo files and then use them for translation on my Codeigniter powered site. However, I'm not quite sure on how to change language from the site GUI. I want to stick to codeigniter's default url calling schema: www.domain.com/controllername/method/param1/param2. Calling the server like this is a no-brainer: www.domain.com/controllername?lang=en Doing that for every controller using the default url schema, requires me to implement the same method in every controller, just to pass the lang parameter to the setlocale() function and then bind to my .po domain name. Feels awkward... ANy ideas how you guys work with gettext in codeigniter? And yes, I do want to work with gettext.

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  • convert.php does not run in a screen session

    - by Tobias
    I am trying to convert a big forum. At the moment I have to do this via ssh and start convert.php with "php5 -f convert.php -- $OPTIONS". But my internet connection is a bit buggy and so it is often killed. If i start the above working command in a screen session it does not work. Instead php gives me the HTML code of the "convert.php" back. head of the page: X-Powered-By: PHP/5.2.12 Set-Cookie: PHPSESSID=6bc4370b2d8d40ff8c3ab23672ff4135; path=/ Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache Content-type: text/html Does it has something to do with the Sessions? But why does it work on the same ssh-connection without screen?

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  • Aptify (.NET CRM Solution) to MailChimp Synchronization

    - by Cord Blomquist
    I'm trying to determine what is involved in synchronizing MailChimp, the popular bulk email service, with Aptify, the .NET-powered CRM my company uses. MailChimp supplies a .NET wrapper DLL which should make this process much easier. They also advertise a 3rd-party solution: Sync Module for .Net systems - MailChimp Sync Module makes it easier for developers to synchronize their lists from any datasource to mailchimp. It has been developed in C# on the mailchimp .NET wrapper. Check it out here. Provided by Wim De Coninck. What steps would have to take to use these tools to get MailChimp and Aptify playing nicely together?

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  • how to get the http header in asynchronous request mode using ASIHHTTP

    - by user262325
    Hello everyone I hope to display the download file size by reading http header. I know there is way do this: ASIHTTPRequest request = [ASIHTTPRequest requestWithURL:url]; [request startSynchronous]; NSString poweredBy = [[request responseHeaders] objectForKey:@"X-Powered-By"]; NSString *contentType = [[request responseHeaders] objectForKey:@"Content-Type"]; but this is Synchronous mode, in Asynchronous mode it can be done as below: (void)requestFinished:(ASIHTTPRequest *)request { unsigned long long contentLength = [request contentLength]; } but 'requestFinished' is at the end of download. Is there an event to get the http header info at the beginning of download? Thank interdev

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  • Asp.Net MVC and ajax async callback execution order

    - by lrb
    I have been sorting through this issue all day and hope someone can help pinpoint my problem. I have created a "asynchronous progress callback" type functionality in my app using ajax. When I strip the functionality out into a test application I get the desired results. See image below: Desired Functionality When I tie the functionality into my single page application using the same code I get a sort of blocking issue where all requests are responded to only after the last task has completed. In the test app above all request are responded to in order. The server reports a ("pending") state for all requests until the controller method has completed. Can anyone give me a hint as to what could cause the change in behavior? Not Desired Desired Fiddler Request/Response GET http://localhost:12028/task/status?_=1383333945335 HTTP/1.1 X-ProgressBar-TaskId: 892183768 Accept: */* X-Requested-With: XMLHttpRequest Referer: http://localhost:12028/ Accept-Language: en-US Accept-Encoding: gzip, deflate User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0) Connection: Keep-Alive DNT: 1 Host: localhost:12028 HTTP/1.1 200 OK Cache-Control: private Content-Type: text/html; charset=utf-8 Vary: Accept-Encoding Server: Microsoft-IIS/8.0 X-AspNetMvc-Version: 3.0 X-AspNet-Version: 4.0.30319 X-SourceFiles: =?UTF-8?B?QzpcUHJvamVjdHNcVEVNUFxQcm9ncmVzc0Jhclx0YXNrXHN0YXR1cw==?= X-Powered-By: ASP.NET Date: Fri, 01 Nov 2013 21:39:08 GMT Content-Length: 25 Iteration completed... Not Desired Fiddler Request/Response GET http://localhost:60171/_Test/status?_=1383341766884 HTTP/1.1 X-ProgressBar-TaskId: 838217998 Accept: */* X-Requested-With: XMLHttpRequest Referer: http://localhost:60171/Report/Index Accept-Language: en-US Accept-Encoding: gzip, deflate User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0) Connection: Keep-Alive DNT: 1 Host: localhost:60171 Pragma: no-cache Cookie: ASP.NET_SessionId=rjli2jb0wyjrgxjqjsicdhdi; AspxAutoDetectCookieSupport=1; TTREPORTS_1_0=CC2A501EF499F9F...; __RequestVerificationToken=6klOoK6lSXR51zCVaDNhuaF6Blual0l8_JH1QTW9W6L-3LroNbyi6WvN6qiqv-PjqpCy7oEmNnAd9s0UONASmBQhUu8aechFYq7EXKzu7WSybObivq46djrE1lvkm6hNXgeLNLYmV0ORmGJeLWDyvA2 HTTP/1.1 200 OK Cache-Control: private Content-Type: text/html; charset=utf-8 Vary: Accept-Encoding Server: Microsoft-IIS/8.0 X-AspNetMvc-Version: 4.0 X-AspNet-Version: 4.0.30319 X-SourceFiles: =?UTF-8?B?QzpcUHJvamVjdHNcSUxlYXJuLlJlcG9ydHMuV2ViXHRydW5rXElMZWFybi5SZXBvcnRzLldlYlxfVGVzdFxzdGF0dXM=?= X-Powered-By: ASP.NET Date: Fri, 01 Nov 2013 21:37:48 GMT Content-Length: 25 Iteration completed... The only difference in the two requests headers besides the auth tokens is "Pragma: no-cache" in the request and the asp.net version in the response. Thanks Update - Code posted (I probably need to indicate this code originated from an article by Dino Esposito ) var ilProgressWorker = function () { var that = {}; that._xhr = null; that._taskId = 0; that._timerId = 0; that._progressUrl = ""; that._abortUrl = ""; that._interval = 500; that._userDefinedProgressCallback = null; that._taskCompletedCallback = null; that._taskAbortedCallback = null; that.createTaskId = function () { var _minNumber = 100, _maxNumber = 1000000000; return _minNumber + Math.floor(Math.random() * _maxNumber); }; // Set progress callback that.callback = function (userCallback, completedCallback, abortedCallback) { that._userDefinedProgressCallback = userCallback; that._taskCompletedCallback = completedCallback; that._taskAbortedCallback = abortedCallback; return this; }; // Set frequency of refresh that.setInterval = function (interval) { that._interval = interval; return this; }; // Abort the operation that.abort = function () { // if (_xhr !== null) // _xhr.abort(); if (that._abortUrl != null && that._abortUrl != "") { $.ajax({ url: that._abortUrl, cache: false, headers: { 'X-ProgressBar-TaskId': that._taskId } }); } }; // INTERNAL FUNCTION that._internalProgressCallback = function () { that._timerId = window.setTimeout(that._internalProgressCallback, that._interval); $.ajax({ url: that._progressUrl, cache: false, headers: { 'X-ProgressBar-TaskId': that._taskId }, success: function (status) { if (that._userDefinedProgressCallback != null) that._userDefinedProgressCallback(status); }, complete: function (data) { var i=0; }, }); }; // Invoke the URL and monitor its progress that.start = function (url, progressUrl, abortUrl) { that._taskId = that.createTaskId(); that._progressUrl = progressUrl; that._abortUrl = abortUrl; // Place the Ajax call _xhr = $.ajax({ url: url, cache: false, headers: { 'X-ProgressBar-TaskId': that._taskId }, complete: function () { if (_xhr.status != 0) return; if (that._taskAbortedCallback != null) that._taskAbortedCallback(); that.end(); }, success: function (data) { if (that._taskCompletedCallback != null) that._taskCompletedCallback(data); that.end(); } }); // Start the progress callback (if any) if (that._userDefinedProgressCallback == null || that._progressUrl === "") return this; that._timerId = window.setTimeout(that._internalProgressCallback, that._interval); }; // Finalize the task that.end = function () { that._taskId = 0; window.clearTimeout(that._timerId); } return that; };

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  • git: Is it possible to save the packed objects of a dry run and push them later?

    - by shovavnik
    I'm trying to push a bunch of commits that contain a lot of code and a few thousand MP3 and PDF files besides (ranging from 5-40 MB each). Git successfully packs the objects: C:\MyProject> git push Counting objects: 7582, done. Delta compression using up to 2 threads. Compressing objects: 100% (7510/7510), done. But it fails to send the push for some as yet unknown reason. The problem is that it takes it a very long time to repack the files (I'm on a battery-powered laptop and it took about 20 minutes to pack). So I guess my question can be phrases thus: Is it possible to save the packed objects created in a dry run? Once saved, is it possible to push those packed objects and avoid repacking? I looked it up in the git manual and elsewhere and couldn't find anything conclusive. Any help or pointers are appreciated.

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