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• GNU screen configuration for optimal keycode recognition

  - by intuited

  Currently GNU screen will botch up certain keystrokes, for example CTRL pressed in combination with the arrow keys, so that eg when in vim insert mode, CTRL-PGUp will Uppercase the next/current word (or something like that). I'd like for it to work pretty much transparently, so that the functionality is the same as when it's not running (with the obvious exception of CTRL-a control sequences)... is this possible? Also — and I suspect this is more or less a separate issue — I'd like for the scrollwheel to scroll back in the session log rather than cycling through the history as it does now. Doable? Or perhaps it could be set to emulate a much larger screen size that the terminal app that it's running under could keep that text in its session log. either way the goal would be to be able to use the mouse wheel and/or shift-up-arrow to scroll back in the session log.

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• How to restore a previous firefox session?

  - by jae

  FF 3.5.4 on Ubuntu 9.10. I have (of course) session saving (the built-in one) enabled. I closed the main FF window, but the "Downloads" window was still open. And on reopen, it had forgotten about the previous tabs. This is annoying is hell, and yes, I should report (or check for) a bug. If I could stomach bugzilla, that is. :P I have the sessionstore.js file with this older session (scanning it with less showed many of the sites I know had been open). How do I get FF to use this session file? I did try to remove sessionstore.* and copy the sessionstore.js (or .bak) to the profile folder. But that doesn't have any effect. EDIT: rewritten, to make it as obvious as it can be. I wasn't expecting people to jump to the "this guy's a stupid git" quite so easily.

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• If a managed network switch were to overheat, would you consider it no longer reliable?

  - by Scott Szretter

  Here is the scenario - I have a network switch, one of several in a stack. It's fan failed. Soon, there were reports of users with network issues. After quickly replacing the fan, the users were fine, network issues were resolved. I assume the unit was overheating, and thus failing somehow. Today someone suggested to me, that I should not assume the unit is 100% reliable anymore. So what do you think, would an overheat condition (less than 1 day with the fan stopped) potentially cause permanent damage that could at some point come to the surface as future network failures/issues? If it matters, we are talking managed switches such as 3Com/HP SuperStack , ProCurve or PWR-Plus.

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• What are "Missing thread recordng" erros when running fsck -fy?

  - by ohho

  There is some error reported when I run Disk Utility and verify the root volume on my OS X MacBook. So I boot and CMD-S into the shell mode and run /sbin/fsck -fy. Errors are like: ** Checking catalog file. Missing thread record (id = ...) In correct number of thread records ** Checking catalog hierarchy. Invalid volume file count (It should be ... instead of ...) ** Repairing Volume Missing directory record (id = ...) I'd like to know what is the cause of the above errors? Hopefully I will be more careful in the future to prevent them from happening again. p.s. I am using a SSD and so I assume mechanical hard disk error is less likely. Thanks!

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• See all output from commands performed inside screen

  - by user1032531

  I am using screen (http://www.gnu.org/software/screen/manual/screen.html) to access my minecraft console. I created a server in /etc/init.d, and have minecraft running in the background. Then, to access the minecraft console, I just type # screen -r in bash. I can now do commands in the screen shell. The problem is if I do some command which exports a bunch of text, it exceeds the size of the screen and pushes the begging output off the page. And I cannot seem to scroll up and see it. How can I scroll back and view all the output? How can I pause the output (maybe something like more or less)?

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• max length of url 257 characters for mod_rewrite?

  - by Daniel

  My url scheme is /foo/var1-var2-var3.../bar I am using these mod_rewrite rules: RewriteBase /foo/ RewriteEngine on RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^ index.php [PT,L] If the length of the string 'var1-var2...' is greater than 257 characters then an error 403 Forbidden and a 404 are returned. However, if the length of the 'var1-var2...' string is 257 characters or less and subsequently followed by a slash the length of the remaining url may be any length. How does one overcome this limit?

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• Routing traffic to another internal network

  - by Jason

  OK, so here is the scenario. I have 4 Locations connected with an MPLS. I have installed an ASA at the primary location which is 10.20.1.0. Traffic is fine internally and to the world, however... I can't route traffic over the MPLS to another network. It is being blocked by an implicit deny rule even though there is a rule to allow any to any less secure interface (it should be using the same interface in/out, right?). I have a static route for the network in and the ASA can ping it - Just not traffic on the internal network of the ASA. -Jason

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• how do web hosting companies host end users domain and give so many public IPs

  - by Registered User

  Hi, I am a Computer Science guy who understands networking very well. But when it comes to Web hosting companies I am clue less. I want to know how do web hosting companies give so many public IPs to so many users and each of them has root login also. How this is technically done that is what I am interested to know. I do not know how you people configure it. In my case if I have to do I will buy a public IP from some one and connect my server to it and at max give some people SSH access to it.In case of Web hosting companies how is it done.

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• How do you enable syslogd to accept incoming connections on Snow Leopard from remote loggers?

  - by Emmel

  How do I get syslogd to accept incoming connections from remote hosts on Snow Leopard? I'd like to centralize logging such that various devices and systems send logs to Snow Leopard's syslogd, which normally hangs out on UDP 514. However, I'm unable to get them to successfully be accepted by good ole syslogd. I tcpdumped on the Snow Leopard box to verify that packets are being spouted to port 514 -- they are. I checked that syslogd is listening on 514 -- it's not. Googling around told me that, on older versions of OSX (don't you love the way things change so rapidly on OSX), one just had to add a flag to the syslogd daemon to allow remote; one did this in com.apple.syslogd.plist. However the syslogd daemon has no flags (at least in its man page) that suggests any remote anything. What's the solution to this? Secondary, less import but relevant question: What's 'newsyslog'? I see a plist file but it's not running (apparently). Thanks

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• Netgear FVX538v2 slow whene connected to Canoga Perkins N525 ETSU

  - by Doomloard

  First of all thank you in advance for helping me. my issue is the old network admin found a problem whene he connected the firewall and the ETSU together the through put went down to less than 1 mega bit a second. his fix was to add a dlink router between the firewall and the etsu which speed it up to 5 mega bits a second. now my boss wants a more clean and proper solution if possible. i have check all the settings in the netgear it dose not seem to be a setting issue. if anyone can help that would be great.

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• Tortoise SVN Error Validating Server Certificate

  - by theplatz

  I just updated the certificate on one of my sites due to the old one expiring. The new certificate verifies fine in Internet Explorer 9, Chrome, and Firefox 4 - but when trying to browse/check out the repository with TortoiseSVN, I get the following error: Error validating server certificate for https://xxx.xxx.com:443: Unknown certificate issuer. Fingerprint: 96:b3:fa:19:bd:4a:ec:c2:bc:19:33:b8:25:2a:0a:47:28:41:07:d0 Distinguished name: (c) 2009 Entrust, Inc., www.entrust.net/rpa is incorporated by reference, Entrust, Inc., US Do you want to proceed? Accept permanently | Accept once | Reject Clicking Accept permanently will work, but this is less than ideal. This problem seems to be related to TortoiseSVN and not the certificate, which checks out fine at http://sslinstallcheck.entrust.net/SIC/jsp/MainWebAddress.jsp and http://www.digicert.com/help/. Any ideas on what could be wrong?

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• AWS Autoscaling issue with existing nodes in ELB

  - by Ram Prasad

  I already have a ELB setup called MyLoadBalancer. I already have 2 nodes running on it with health checks (that checks a URL on the node to see if they are up) Created an autoscaling group (min 2, Max 10) Associated launchconfig mylaunchconfig that provisions a node using an AMI Created a trigger, that checks for avg min connections of 100 and Max of 500 (checks the load balancer and it is support to increase the node count by 1, if avg connections are 500 and decrease by one if less than 100) as-create-or-update-trigger MyTrigger --auto-scaling-group MyAutoScalingGroup --namespace "AWS/ELB" --measure RequestCount --statistic Average --dimensions "LoadBalancerName=MyLoadBalancer" --period 60 --lower-threshold 500 --upper-threshold 800 --lower-breach-increment=-1 --upper-breach-increment=1 --breach-duration 600 Now the issue is, as soon as I put in the trigger, it start 2 nodes .... but there are already two nodes in the LB. So, why is it provisioning 2 more nodes, when the nodes are there ? is it because it is not recognizing the existing 2 nodes ? then how do I add the existing nodes to the AutoScaling group ?

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• Any good reason to keep 32-bit desktop OS's

  - by Mark Henderson

  Server software has been 64-bit only for a while now (Since Server 2008 R2 for Windows, even earlier for Exchange and Sharepoint) and even Ubuntu are pushing you away from 32-bit versions for their server OS's. But is there any good, quantifiable reason to keep a 32-bit desktop operating system maintained? We're preparing our Windows 8 images for the (unfortunate?) few that will be early adopters. The majority of our desktop computers have 4gb or less of RAM, but I would love to not have to bother supporting a 32-bit flavoured operating system any more. Any reason why I should?

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• Can't create a valid symlink under VMWare HGFS

  - by Alexander Gladysh

  Host: OS X 10.6.5 VMWare Fusion: 3.1.2 Guest: Ubuntu x86 10.10 $ uname -a Linux ubuntu 2.6.35-24-generic #42-Ubuntu SMP Thu Dec 2 01:41:57 UTC 2010 i686 GNU/Linux I can not create a symlink, readable from the Guest OS anywhere in the directory, mounted with hgfs: /mnt/hgfs/projects/tmp$ touch aaa /mnt/hgfs/projects/tmp$ ln -s aaa bbb /mnt/hgfs/projects/tmp$ less bbb bbb: No such file or directory /mnt/hgfs/projects/tmp$ ls -la total 6 drwxr-xr-x 1 501 users 136 2010-12-28 18:12 . drwxr-xr-x 1 501 users 8602 2010-12-28 18:12 .. -rw-r--r-- 1 501 users 0 2010-12-28 18:12 aaa lrwxr-xr-x 1 501 users 3 2010-12-28 18:12 bbb - aaa /mnt/hgfs/projects/tmp$ readlink bbb aaa The same symlink is perfectly accessible in OS X host. Is there a workaround for this?

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• Thinkpad CPU temperature reaches 100°C after 10 minutes of heavy use

  - by Nicolas Raoul

  Less than two years ago, I bought a Lenovo Thinkpad R500. When using the CPU heavily, it sometimes decides to reboot. I am using Linux, and a widget shows me the CPU temperature. The PC usually reboots when the temperature of the first core gets over 100°C Since I switched from Ubuntu 2010.10 32bit to Ubuntu 2011.04 64bit, it crashes much more often. I survive using these techniques: When in the office, I use a laptopcooler. When outside, I underclock to 800 MHz, by doing so it does not get too warm. QUESTION: Is it normal that a Thinkpad crashes if the CPU is at 100% for more than 10 minutes? How can I use the full power of my computer, for instance when showing CPU-hungry business intelligence tools to clients? The computer does not really feel that hot. Maybe the sensor itself is reporting wrong temperatures? Can I tell the BIOS to ignore it?

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• Printer monitoring script (PowerShell)

  - by HannesFostie

  I am going to write a script of some sort to check event viewer in a windows server 2003 for all printjobs, and then write them to a comma delimited textfile like printername_floor_room.txt I am wondering what the best way is to do this realtime, and keep checking the event viewer constantly. Any caveats I need to be aware of? Thanks EDIT: Okay, so I will most likely go for PowerShell and use Get-EventLog and then edit the "table" data. Problems I'm having: if I were to save all this data to a text file, how do I get the data out of it? A comma-separated file I could work with, but this, I'm not really sure. And once that is sorted out, I'm still not sure how to keep the file updated more or less real-time. Can I make this service-like, without hogging up all resources? Run it every x seconds for example?

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• Why does a website server recieve local files much slower than recieve files on other websites?

  - by T...

  The server at http://any2djvu.djvuzone.org receives same files from local computers much slower than from links on other websites (with the same files have been uploaded to the other websites, such as dropbox.com). The speed of uploading a file from local computers to other websites such as dropbox is also much faster than to any2djvu website. For example, a pdf file of 17MB needs more than 1 min to be uploaded to any2djvu server from a local computer with normal ISP such as Comcast High-speed internet, but takes less than 3 seconds from a dropbox link to any2djvu server, and takes around 10 seconds from the same local computer to dropbox. I wonder why there is such big differences for the speeds of different uploading ways to a web server? Thanks!

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• how do applications (and OS) handle very big files?

  - by DrStrangeLove

  For instance, i have video file which is 11.8 Gb, but my RAM memory only 2 Gb.. How does VLC (or other software) handle it? How do they load it into memory? I used VMMap tool (from sysinternals) to take a look at memory, and i saw: private 160000K working set 100000K Obviously, it's much less than 11.8 Gb -So how did it happen? This question is not only about video. I'd like to know how computer, in general, handles very large files.

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• Minimize the chance my email is blocked/filtered as spam

  - by justSteve

  I'm running a web-based store where order confirmations are sometimes blocked and don't reach the intended user. The structure of the business model is such that our product is marketed to the end-user by a 3rd parities - affiliates how are known entities to the end-users and email is freely exchanged between end-users and our affiliates. Our confirmations being blocked is becoming a big enough problem that we are considering implementing a system where a 'confirmations' address is created within the affiliates domain, then we'd have our app send via the affiliate's mail server instead of our own. But that'd be lots of work. The idea has been raised to have our app use our affiliates' email in the FROM field but still send from our server. My thinking is that would be detected at the end-users side and blocked just as often - we dealing with institutions large enough at least some checks up at the perimeter. Is this assumption correct (more likely to be blocked) or is there a less round about way to send messages under the auspices of 3rd parties? thx

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• Proper management of PGPool II

  - by Cathy

  Currently I have a site, with one Postgres database server. It is just for a select number of users (less than ten) but it needs the maximum uptime possible. I would like some kind of automatic failover for the database. So I was thinking something like: one server running PGPool II, one running Postgres as master, one running Postgres as slave. But then, if wherever PGPool is running suddenly loses power (or dies, or whatever), there's a single point of failure and the whole thing goes down. Is there a solution, assuming that outsourcing this to someone else isn't possible?

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• Resizing/reprocessing videofiles to adjust total size being <= 4.7gb

  - by altern

  How could I resize or reprocess bunch of videofiles (tv show series) to be able write it on DVD? Total size of all files should be less or equal to the max size of dvd - 4.7G. Is there any kind of program which allows conversion with total filesize adjustement up to defined limit? Is there way to be sure quality will not suffer noticeably after video files adjustments? Maybe there is a software which allows adjusting quality and creating DVD video disk with nifty menu automatically? Any help is appreciated. Thanks!

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• Make windows vista file explorer act normally

  - by user25866

  Is there some file I can remove or something I can do to globally ensure that windows visa/xp/etc doesn't do annoying things? Annoying things: 1) Hide the file extension 2) All these "meta" columns I could care less about in "details" view (rating, album, date taken, Assistant's name, Artist, 35mm focal length, City, Other City, etc...). All I want are Name, size, date created, date modified, and file extension. MAYBE file chmod settings. 3) That garbage in the left pane known as "favorite links." (Documents, desktop, photos, music, etc...) 4) Switching between detail view, large icon view, thumbnail view, list view, and tiles when I goto differnt folders, all I want is detail view, with the same columns every time. That's it. I shouldn't have to get third party software to make my file system browseable, but if I need to so be it... Why are all these settings buried away? It feels like I have to apply them onto each folder every time.

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• What are the consequences of giving an AD domain differing NetBIOS and DNS names?

  - by Newt

  In the past, when creating AD domains, I've used the common convention of using a sub-domain of the company's publicly registered domain name, e.g "corp.mycompany.com" or "int.mycompany.com". I've always accepted the default NetBIOS name when running DCPromo, for fear that creating a NetBIOS name that differs from the sub-domain may cause complications. I've recently been doing a bit of research on the consequences of providing an alternate NetBIOS name. The main reasons behind this are: The NetBIOS name isn't particularly descriptive or unique to the company Apparently generic NetBIOS names such as "CORP" or "INT" can cause issues when merging IT systems (although I've not had experience with this myself) Providing something "before the slash" that means more to users (less important) In looking at the possible downsides, the only one I can come up with is the disjointed namespace issue when configuring Exchange. Can anybody with more experience than I elaborate on my findings at all? Many thanks

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• Windows 7 Service Pack 1 Install Failing

  - by Cu Jimmy

  I am having real trouble updating one of my machines to Win7 Service Pack 1. Its an Asus P5K board with an X9650 Quad Core Extreme chip, which is a less common type of chip. Was wondering if anyone has had issues with this kind of kit or if it may just be the motherboard is a little gone. The error message I get back from Microsoft Update is WindowsUpdate_80091007 and WindowsUpdate_dt000 which are fairly generic errors. Tried installing with the sp1 file based installer and got nowhere. The actual installer crashes with an SP Installer has crashed Its a fresh install on a fully scrubbed drive (an Intel 120GB SSD).

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• Turning off Chrome's visual effects

  - by Wesley

  Is there any way to turn off the visual effects used by Google Chrome? For example, the tabs slide around smoothly, the scrolling is really smooth, and there is a huge arrow that fades in and out during download. Reason why I'd like to know is primarily because I want to maximize battery life on my netbook by using less visual effects and, secondly, because I use Chrome on slower systems and would like to maximize the performance and efficiency of Chrome. This applies mainly to Windows XP, but also Vista, 7 and even (X)Ubuntu 9.10. EDIT1: Oh yes... disabling the attaching/detaching of tabs and turning them into translucent in the process. That's a bit stressful on my slower machines.

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