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• Get Zipped Logs from a Remote Server

  - by Jonathan

  I am tasked with trying to find a way to download zipped logs from a remote server. There are quite a bit of these logs and they are constantly created. I do have limited ssh access to the remote server and can scp or rsync the files. However, due to the sheer size of these logs file, I do not want to rsync all of them. The logs could get to terabytes and for rsync to compare them may take some time. I only want to get any new file that was created/last updated an hour ago. I also am worried that I will rsync logs that are in the process of being created, so I was thinking to only rsync files that were last modified 3-5 minutes ago. Would anyone be so kind as to help me with such a process? Thank you in advance.

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• Laptop crashes when connecting to external harddisk

  - by Gnot

  I recently had a problem with my laptop. when I booted up the machine, I would get a SMART failure error message and when I pressed F1 to continue, it would take a very long time to boot and it would come back to the same error message again. Thinking that my hard disk was dying, I bought a new hard disk and installed on my laptop and so now my laptop is alright. However I need to recover data from that old hard disk, so I bought an external hard disk case and placed the old hard disk onto the case and connected to my laptop with USB. The first few times when I connected, I could see the files from the old hard disk and managed to copy some files over although it took extremely long to transfer. But now whenever I connect to the old hard disk, after a few minutes, my laptop will crash and re-boot. Do you think my old hard disk is dead beyond repair? Or you can offer some help here? Any assistance would be appreciated!

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• find files their name is smaller or greater than a given parameter

  - by Tzury Bar Yochay

  Say that in a given directory I got tzury@x200:~/Desktop/sandbox$ ls -l total 20 drwxr-xr-x 2 tzury tzury 4096 2011-03-09 10:19 N00.P000 drwxr-xr-x 2 tzury tzury 4096 2011-03-09 10:19 N00.P001 drwxr-xr-x 2 tzury tzury 4096 2011-03-09 10:19 N00.P002 drwxr-xr-x 2 tzury tzury 4096 2011-03-09 10:19 N00.P003 drwxr-xr-x 2 tzury tzury 4096 2011-03-09 10:19 N00.P004 drwxr-xr-x 2 tzury tzury 4096 2011-03-09 10:19 N01.P000 drwxr-xr-x 2 tzury tzury 4096 2011-03-09 10:19 N01.P001 drwxr-xr-x 2 tzury tzury 4096 2011-03-09 10:19 N01.P002 I seek for a bash way to grab the list of files which their name is either grater or smaller than a given parameter, for instance: $ my_finder lt N00.P003 shall return N00.P000, N00.P001 and N00.P002 $ my_finder gt N00.P003 shall return N00.P004, N01.P000, N01.P001 and N01.P002 I was thinking of iterating over for name in $(ls) and while $name != $2 but believe there are more elegant way of doing so

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• Multiple connections to the same Wireless Network in Windows 7

  - by Jamek

  Hello, my university just limited bandwidth to 512 kbps (that's 64 kB/s!) for each connection. I was thinking to make multiple connection to the same wireless network (called "internet"), is this possible under Windows 7? I know it's possible to connect to more than one WLAN through the "hostednetwork" concept in netsh: netsh wlan set hostednetwork mode=allow ssid=xxxxx netsh wlan start hostednetwork However this method doesn't seem to work, I don't know if it's due to the authentication method (through certificates while hostednetwork seems to support just a "passphrase") or because I'm already connected to that network with the same MAC. Can you think to some tool able to do this?

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• Upgrading MacBookPro

  - by moray95

  I'm using a Late 2011 13" MacBook Pro with an Intel i5 @ 2.4 GHz and 4 GB 1333 MHz ram. The computer has started to get older. I was going to upgrade the ram but since Mavericks come out, the ram problem just went away and now, it started to get slower and slower. So I was thinking of upgrading my ram to at least 8GB and my CPU. I have two question about that. As I have 1333Mhz rams installed by default, the motherboard should not support 1666Mhz rams. But can I use 1666 Mhz ones and if I can will it make any difference? Also is it possible to upgrade the CPU of my computer? If yes how can I find a CPU compatible with the other components?

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• table alias (or 'symlink') in mysql

  - by andreash

  Hi there, in MySQL5.1, is there a way to make one table accessible by two different names? I'm thinking about somethink like a symlink on linux filesystems. I know theres the CREATE VIEW myview AS SELECT * FrOM mytable thing, but I don't only need to SELECT from both names, but also delete etc ... You might ask why I want to do this? It's about getting a commercial, closed-source app to work, which is crappily programmed (usually, the table names are all lower-case, but occasionally, they use capitalized names for the same table ...). Oh, that would be another idea: Is there a way to tell MySQL not to care about capitalization of table names (like on Windows filesystems?)? that would also do the trick ... Thanks for your insight! A.

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• Suitable companion monitors for HP LP3065 30" primary monitor

  - by Bittercoder

  I have an HP LP3065 30" monitor - now I want to add a couple of companion screens to either side of it - I've heard to people suggesting 21" monitors in portrait mode - but it seems difficult to find a suitable panel these day, as 22" wide-screen monitors have become common, and I can't seem to find anything with a suitable 1600 pixel width. Can anyone recommend a suitable monitor, and suggest what criteria are best for picking a suitable monitor - what's important to consider - I'm thinking things like: Exact resolution match? Viewing angle? Small/thin bezel?

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• BSOD During Windows 7 Install

  - by matheeeny

  I current have a working XP partition a Dell XPS m1330 laptop along with a working Ubuntu partition. After launching the Windows 7 install DVD from within XP I run through the options for a custom install on a free NTFS partition. Everything seemingly works as it should and then my computer restarts. After choosing to boot into the newly created Windows partition I am given the Windows 7 splash screen only to be followed by the BSOD. Here are the stop codes from the BSOD: stop: 0x0000007b (0x80D86B58,0xc0000034,0x00000000,0x0000000) Googling this tells me that it indicates an 'inaccessable boot drive'. Is it possible that its having problems booting from this partition due to the other existing partitions? I'm thinking that there may be a windows recovery CD workaround this but I am not quite proficient in its capabilities. This is what happens when I try to install by booting from the DVD

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• Simple secured SFTP tunnel?

  - by babonk

  I'd like to setup an sftp tunnel so that I can connect to an IP-secured SFTP server through a gateway computer from anywhere, and download the files to anywhere. I was thinking of using a combination with netcat, having it listen to either WinSCP or PuTTY sFTP (doesn't matter which). Not sure how I would download the files to the connecting computer though. I would like the tunnel to be secured, preferably, with a username/password. I'm open to using alternative software but I'm looking for unintrusive, simple command line stuff because I don't want to install a lot on this computer. Thanks

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• Waiting for a daemontools service to stop

  - by also

  I'm running a service under daemontools that take several seconds to stop when sent the TERM signal. I need to stop it in a script, and then wait for the process to stop before continuing to take a LVM snapshot or restarting the service. Does daemontools provide a way to do this? If not, what's the best way? I was thinking of sleeping while svcok exits with 0, but it seems like this should be a common problem with an easier solution. Thoughts?

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• Adding Windows 7 to Fedora 17 Grub Boot Loader

  - by Kyle

  I'm trying to set up a dual-boot situation with my Windows 7 and Fedora 17 partitions and I left the install grub to /boot option on when I was installing Fedora. I would like to be able to add Windows 7 to the grub boot loader, but the advice I've seen online says to modify /boot/grub/grub.conf, but I don't have that file. $ ls /boot/grub/ splash.xpm.gz Has anyone done this? I'm thinking that I'll just need to re-install everything and use the Windows boot loader, but it would be nice to use grub instead.

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• SSD on Vmware ESXI 4 (TRIM? Good Idea?)

  - by nextgenneo

  Hi, I just posted about finding bottle necks and have narrowed it down to having way too many VMs on my machine on one 15K SAS drive. I have plenty of cores and plenty of ram. So I am planning on putting 6 VMs on one drive (so 5 drives for 30 VMs). I am thinking of using a 60GB Vertex 2 SSD. Each of my VMs will only need about 6GB of HDD space so this isn't a big deal. My questions are: does ESXI support Trim and do I really need it if I leave 25% of the drive as free space? If I need it should I get a diff drive that handles garbage collection differently? I have a RAID controller w/ write caching. I will still benefit from this? Will this effect my setup differently? Is there anything I need to consider regarding SSD's in virtualized environments. Thanks for any and all help!

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• iMac with Mountain Lion and Mavericks

  - by bob

  I have been starting up my iMac (Mavericks) with a flash drive that boots up Mountain Lion so that I can use an app that is incompatible with Mavericks. Question: I have a single external backup drive always connected to my Mac. I am thinking of partitioning that drive and giving each partition a unique name, e.g., Backup 1 and Backup 2. I intend then to boot up in Mavericks and tell Time Machine to back up to Backup 1, and then boot up in Mountain Lion and tell Time Machine to back up to Backup 2. Will this work, i.e., will the appropriate partition automatically back up the system in which it is booted?

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• EXEC() syntax error using ODBC

  - by Mike Trader

  I have written a little ETL application that I wish to run a few lines of TSQL from. If i enter a simple query like "SELECT * FROM MyTable" everything is fine. All single line commands run as expected. A multiline query like this is also fine: DECLARE @TableName NVARCHAR(MAX) set @TableName = 'MyTable' EXECute ( 'DROP TABLE '+ @TableName ) Howevery when I try and run: DECLARE @TableName NVARCHAR(MAX) OPEN Tables FETCH NEXT FROM Tables INTO @TableName WHILE @@FETCH_STATUS = 0 BEGIN EXEC( 'DROP TABLE ' + @TableName ) FETCH NEXT FROM Tables INTO @TableName END I get a syntax error after TABLE in the EXEC() call. I have spent 6 hours trying to figure this out thinking perhaps I need to escape the single quote or something. I just cannot see the problem. A set of fresh eyes would be appreciated.

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• Remove values from array on foreach PHP

  - by user104531

  I have an array like this: Array ( [0] => Array ( [id] => 68 [type] => onetype [type_id] => 131 [name] => name1 ) [1] => Array ( [id] => 32 [type] => anothertype [type_id] => 101 [name] => name2 ) ) I need to remove some arrays from it if the users has permissions or not to see that kind of type. I am thinking on doing it with a for each, and do the needed ifs inside it to remove or let it as it. My question is: What's the most efficent way to do this? The array will have no more than 100 records. But several users will request it and do the filtering over and over.

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• Distributed website server redundancy

  - by Keith Lion

  Assume a website infrastructure is very complicated and is fully distributed (probably like most large web companies). Am I right in thinking that although there are all these extra web servers to handle multiple client requests, there is still a single "machine" whereby users must enter? I am guessing this machine will be the one physically associated to the IP address? I ask because I need to know whether, in places where distributed systems exist, there is still a single point of failure- usually the control node or, in this example, the machine connected to the public internet? Surely there cannot be two machines connected to the internet, as they would have to have different IP addresses? This "machine" may not be a server per se, but maybe it is a piece of cisco equipment. I just need to know whether, in the real world, these distributed systems still have a particular section where they depend on the integrity of one electronic device?

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• Small 64-bit linux server distro with low memory footprint?

  - by djangofan

  I am looking for a linux server distro with a low memory footprint. I usually use Ubuntu but I need something with a smaller footprint in order to run a large Java JVM service inside of it and also run X-windows. Any ideas? The Java service needs to handle a 3GB memory heap and so I require a 64-bit OS and JRE. http://en.wikipedia.org/wiki/Comparison%5Fof%5FLinux%5Fdistributions I am thinking that ArchLinux is the only one that I can find right now. It uses 250MB out of the box (without X-win). Any better suggestions?

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• just another apache to nginx rewrite question

  - by Brandon

  I have the following Apache rewrite directives: RewriteCond %{REQUEST_URI} ^/proxy(/|$) [NC] RewriteCond %{QUERY_STRING} (^|&)uri=(.*?)(&|$) [NC] RewriteRule .* /api/vs1.0/%2 [NC,L] And I'm trying out nginx, so trying to move the rewrites over. I came up with... rewrite ^/proxy(/|$) /api/vs1.0/$2 last; rewrite (^|&)uri=(.*?)(&|$) /api/vs1.0/$2 last; Which is probably grossly incorrect. I'm just a mere web developer, so I was wondering if anyone could lend a hand here. I would be much obliged. I see that I am ignoring the query string specification, but I'm thinking that it shouldn't matter. I only have a vague idea of what the original rewrite is accomplishing, so I haven't much hope here in coming up with something decent, despite reading the relevant documentation for both servers.

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• IIS + PHP + Page with lots of images = Intermittent 403 errors

  - by samJL

  I am using an up-to-date Server 2008 R2 Datacenter, running IIS 7.5 and PHP 5.3.6/FastCGI On PHP pages with lots of images (60+), some of the images fail to load It is not always the same images-- on each page refresh an image that worked previously may not load, while an image that did not now does Looking at the Net tab in Firebug reveals that the failing image requests are 403 errors All of the images are located on the server in question, and the images directory has the correct permissions I believe this problem is the result of a limit on requests All of my attempts at researching this problem point to maxConnections setting in IIS, yet mine is set at the highest/default of 4294967295 (maxBandwidth too) I am also running a ColdFusion site on the same IIS installation, and it does not suffer from 403's on pages with lots of images I am left thinking that there is another connection limit (in PHP or FastCGI?) overriding the IIS connection limit I don't see anything that looks like a request limit in the php.ini, what am I missing? Any help would be appreciated, thank you

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• Virtualized Development Server for simulating 3-Tier Environment

  - by chris.cyvas

  Hello, I am thinking about buying a new server based development box for development (redundantly redundant, I know ;)). Ideally, I want to run something like ESXi or Xen Hypervisor at the lowest level. Then I want to add (at least) 5 Linux VM's for the following uses: 2 Web Servers 2 Application Servers 1 Database Server I want to load balance the 2 web servers and the 2 application servers and (somewhat obviously) they need to be all networked together to simulate a production environment. Also, it used to be the case that the recommendation was to put each VM on it's own hard drive, but I'm not sure that holds water anymore. Any advice? Does anyone have any advice on how to pull this off? Gotchya's, LookOuts!, etc? Thanks!

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• Windows: Should I install Server or stick with regular?

  - by stalker92

  I hope somebody can help me solve my dilemma. I have my home PC (using Windows 7) which I use for both work and leisure (gaming, surfing, movies etc.) I tend to never turn it off, only when I must reboot because some installation requires me to or when the power gets lost. But, sometimes Windows starts acting weird (usually after the long period of system uptime), per example eats up randomly all the space on my system partition etc. which is solved after the reset by itself. I was thinking to switch to Windows Server, I guess that it is more optimized for long uptime, well, obviously it is meant for use on servers. Can somebody with more experience with this help me decide is it worth it, will it solve these issues connected with long uptime periods? Thanks in advance.

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• Windows 7: Use VirtualStore as user for own benefit?

  - by mfn

  I've researched a bit and came to the understanding that VirtualStore is part of the new UAC feature in Vista/W7 which is the file system part of the transparent data redirection and redirects write access to folders like program files to C:\User\<username>\AppData\Local\VirtualStore\ in lack of applications respecting the LUA principles. Now I'm interested if that kind of transparent redirection can also be used as a power to the user. Here's an example which comes to my mind: I install any kind of software to e.g. D:\Whatever\ThisAndThisApp\ and I set up things that, after initial installation, any write access to this folder is transparently redirected to e.g. D:\MyOwnVirtualStore\Whatever\ThisAndThisApp\file_only_writable_here.txt. Is this thinking too far or can I actually use that power of VirtualStore as a user on Windows 7? I'm using the Professional version of that matters.

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• What does "Windows is not a real-time operating system" mean?

  - by hydroparadise

  I came across an application called LatencyMon, that apparently does latency monitoring. I have always understood the more of a load you put on the processor, the less responsive, or more latent, the system becomes. However, in the second section of the LatencyMon page, the first sentence says, "Windows is not a real-time operating system". That got me thinking. I mean, is this any different from any other operatiing system like linux, unix, or OS X? Are there any "Real-Time" operating systems? Or is the merely a marketing scheme to get you to buy their product? EDIT: Also, are there any examples of RTOS's out there?

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• Using DNS entries to determine location

  - by Raphink

  I'm trying to think of a clean way to determine the location of machines (mainly, which datacenter they belong to) based on their network settings. I would like it to be dynamic, and I'm thinking of using special DNS records that would be specific to the DNS server in each datacenter. For example, you could have: root@machine1# dig TXT mysite ... mysite 3600 IN TXT "DC1" ... root@machine2# dig TXT mysite ... mysite 3600 IN TXT "DC2" ... etc. I know that DNS has a special LOC record for location, but it takes coordinates, so it doesn't help in my case. Is there a standard way of addressing this issue, another special type of record for it, or some standard entries in TXT records?

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• Auto-scaling EC2 Servers and Updating Code

  - by jstats

  We've come to the point where we need to set up autoscaling for our web server and I'm unsure how to go about the process of scaling servers and updating the the existing code without remaking a new AMI and changing the autoscale config to use it. I've read a bit about people bundling the new code and uploading it to s3 and having new servers grab the bundle on boot up but that doesn't seem all that pleasant either. Currently the web app's files live in a git repo, and when we update the code, we push it to github, ssh into the web app and run a hook to bring down the latest code. So I was thinking that another option could be to just run that hook on an hourly or daily cron task. Unfortunately that doesn't cover everything type of update (for example new blog posts' images and such which aren't included in the git repo) but it's something. Could anyone provide some advice on what a common solution is or anything as to why my proposed solution is a bad idea? Thanks all

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