Search Results

Search found 18249 results on 730 pages for 'real world haskell'.

Page 379/730 | < Previous Page | 375 376 377 378 379 380 381 382 383 384 385 386  | Next Page >

• Get the MAC addresses of all the machines connected to a LAN when NO machines have got an IP address yet

  - by JtheRocker

  Here is the real scenario. I have say 4 machines not having any IP address yet connected to a switch. In one of the machines (OS=CentOS), I would install a DHCP server and would provide the other machines IP addresses. Prior to assigning them IP addresses, I need to get the MAC address of each of the machines that I would assign IP addresses to. So, my question here is how to I get the MAC addresses of all the machines connected to a switch when NO machine has got any IP address yet? It's mandatory for my use case that I won't be having any IP addresses before the MAC addresses. -Thanks

  Read the article

• Computer freeze at night

  - by matmat07

  Every night except one this week my laptop froze over night. I tried to check the event viewer, but there's no real help there. Tonight I'll do a memtest to check the RAM. And this shouldn't be a temperature issue since I can play game without any problem (Diablo 3, League of legend) Is there any diagnosys tool I could use. Maybe something that would write time down every minute so I know the precise time when it freeze? I have win7 and 8gb of RAM I installed myself Answer to comment:Asus N71JQ Unknown time, but it seems differents if I look at the last entry in the logs I have no information to tell you, that's why I ask for tool and not the solution. I usualy go to sleep after midnight, but I have AVG free edition as antivirus

  Read the article

• Hardware for Capturing Packets

  - by Kevin

  One of my clients is a small school district in Texas. Like any school, they often have problems with network'd peripherals such as printers, et al. It would be nice to be able to simply "listen" to what the printer and PC are saying to each other (or not saying more importantly)... The problem is that I can't find old-style "hubs" anymore, and even if I could, it's not a long-term solution. All of the devices that I have found to replicate the purpose of a simple hub are either $100+ or are difficult to throw into a networking tool kit (aka my backpack)... Now that hubs are dead, what's the new low-cost standard for simple packet capture in the networking world?

  Read the article

• grep only returns help text

  - by Pete Mancini

  Well, I am perplexed. I am working with an Ubuntu server and I type in grep 'bash' *.sh BUT fgrep 'bash' *.sh works like a champ. which grep and which fgrep both point to their respective executables in /bin. I am perplexed as to what I am doing wrong. EXAMPLE output: $ grep -F 'grounding' repl.clj Usage: grep [OPTION]... PATTERN [FILE]... Search for PATTERN in each FILE or standard input. PATTERN is, by default, a basic regular expression (BRE). Example: grep -i 'hello world' menu.h main.c $ fgrep 'grounding' repl.clj (p/concepts-for-grounding-term imp1 "PERSON" "summary") See? grep is failing but fgrep is working fine. That is why I am perplexed.

  Read the article

• How to remove an entry from Chrome's Remembered URLs from the url bar?

  - by cmcculloh

  I've got a url in Chrome "local.mysite.com" that autopopulates when I start typing "local.my" into the URL bar. Note that this URL DOES NOT EXIST in my browser history (at chrome://history/#e=1&p=0) because it isn't a real site and therefor couldn't ever be successfully visited and therefor never shows up in my history. The URL I want is "local.mysite.com/subdir/". That URL is like 3 down in the suggested results because I keep accidentally hitting "enter" when it auto-suggests the unwanted first URL and thus re-enforcing it's assumption that that is the one I want. How do I get rid of the "local.mysite.com" entry in Chrome's memory?

  Read the article

• Macrium Reflect Server v5 for Server Cloning?

  - by Stephane

  I'm starting to have clients with basic windows server setups. They have data backups, but no real strategy for system backups. I've been looking at cloning software which with linux or images seems easy enough (aside from DC complications, and other things I'm going to ignore until I learn more). What do people do when you have a non-disk hardware failure? I"ve been looking at server migration backup solutions and this one seems to be the cheapest. Anyone tried this? What more do I need to do to safeguard server setups? The hardware on these systems is a little out of date with Server 2003 setup at both businesses. Thanks!

  Read the article

• iptables, allow access from certain MAC addresses

  - by user788171

  Presently, I limit which clients can access my server by using IP addresses via iptables, only approved IP addresses can connect. However, the problem with this is if a client is on a laptop and goes to a different location, they can no longer connect because the IP has changed. For a variety of reasons, iptables authentication is the only option I have. Is there a way to restrict access by device instead of ip address. For instance, only allow certain MAC address to connect to port 5000. Is it possible to do this via iptables? Note, the computers are not on the same network, they could be connecting from anywhere in the world.

  Read the article

• What is the difference between yum, apt-get, rpm, ./configure && make install

  - by Saif Bechan

  I am new to Linux and am running CentOs. When I want to update or install certain software I came across three ways. Sometimes it's: yum install program rpm -i program.rpm wget program.tar.gz unpack ./configure make make install That last one is a real pain, esp when you come from windows where a program install is usually one click and then a nice guide. Now can someone please explain to me: Why are there so many different ways to do this? Which one do you recommend to use and why? Are there any other ways for installing programs?

  Read the article

• JAVA vs .NET Technology - Way 2 go Futher

  - by Sarang

  I have my subject .net acedemically. I also learned core-java and did a project as well. I took training from a java firm. Now, as a skill I do have knowledge as both language. But, it is creating a large problem to me that, which field I should chhose? Even if having better OOP funda, will it be easier for me to transfer from one-another in future ? Please suggest me a way. Also, we do have may technologies available at both side, like JSP, JSF, J2ME, Share Point, SilverLight etc. Which is better as per their reliabity point of view? Which are fast growing and useful technologies used mostly in current IT corporate world ? Are they easier to learn at fresher's point of view? Please answer. Perhaps, this answer may help me mostly to create my way to learn them and go further.

  Read the article

• what can be reasons for localhost responding super-slow the first time a page is requested?

  - by frequent

  Still learning my server-ways with Apache2.2/MySQL5.2/Coldfusion8 on localhost (running Windows XP) What I notice is every time I request a page for the first time after firing up Coldfusion and Apache, localhost needs forever (1+ minute to respond and send the inital page). After that all seems to run at normal loading time. I'm using require.js to pull in Jquery, Jquery Mobile and two other plugins on first page load, but loading the same page from a real server works normally, so I'm also ruling out this as a probable cause. Since it happens regardless of which page I'm loading first it shoud not be page related, so I'm looking for other clues on why this could happen. Thanks for some thought!

  Read the article

• Iozone: sensible settings for a server with lots of RAM

  - by Frank Brenner

  I have just acquired a server with: 2x quadcore Xeons 48G ECC RAM 5x 160GB SSDs on an LSI 9260-8i Before deploying the target platform, I'd like to collect as much benchmark data as possible, testing I/O with hardware RAID in various configurations, ZFS zRAID, as well as I/O performance on vSphere and with KVM virtualization. In order to see real disk I/O performance without cache effects, I tried running Iozone with a maximum file of more than twice the physical RAM as recommended in the documentation, so: iozone -a -g100G However, as one might expect, this takes far too long to be practicable. (I stopped the run after seven hours..) I'd like to reduce the range of record and file sizes to values that might reflect realistic performance for an application server, hopefully getting the run times to under an hour or so. Any ideas? Thanks.

  Read the article

• IIS slow response

  - by Martin Ševic

  I have developed ASP.NET 4.5 application which take infos about sensors from sqlite database every 3 seconds. This application runs nice on my local develop machine on IIS Express server. I have created virtual machine (4x 3,25 GHz CPU; 6GB RAM) where i have installed Windows Server 2012 and IIS 8 service in order to test application on real server because we will run it on production machine later. After installing VC++ 2010 x64 and VC++ 2010 x86 and set "Enable 32-bit application" to true in application pool website started to work but there is a large problem with response time. There is a for example 10 seconds delay before page loads. CPU utillization is about 10% and RAM about 1,5GB. I am new to configuring IIS server so i want to ask if there is some tip how to make it faster. I am sure, there will be some twist which will make it normal work. Many thanks.

  Read the article

• How to wipe the slate clean on an Oracle installation?

  - by nw

  After a basic, successful installation of Oracle 11g, I ran dbca again to enable Enterprise Manager on my database. The operation hung at around 67% for half an hour or more, so I clicked Stop to abort the operation. Things seemed to wrap up cleanly, EM was working, all was well with the world. Then I started getting this dreaded error upon any attempt to connect in SQL*Plus: ORA-12154: TNS:could not resolve the connect identifier specified I thought perhaps the database had been corrupted due to the earlier aborted operation, so I ran dbca again and deleted the database. Then I attempted to create a new database in its stead, using a clone of the template created the first time around. Unfortunately, the clone database operation fails at 50% with the exact same error: ORA-12154: TNS:could not resolve the connect identifier specified How can I clean up the mess I have created, short of reinstalling Oracle entirely from scratch?

  Read the article

• trouble loggin into a Mac share from a Windows PC on the network

  - by villares

  I have this mixed network and usually log into the Macs from the Windows XP home machines and vice versa. I have no real networking knowledge, things just seem to work, more or less, with the default settings. Now I've got a new Snow Leopard Mac with a shared folder (added the user names of the Windows users at the sharing preferences) and the trouble is some machines can open the share and others can't. I can't see the difference. It feels like some Windows machines have a "cache" and won't ask for the share password, just deny access. I can also see old shares proposed at the Windows "add network place wizard".

  Read the article

• how to properly edit hosts, hostname and resolf.conf?

  - by Firewall

  i,v been searching the internet for a real noop tutorial on the subject but could not found any direct info. on how to edit these files the proper way. i,v got a debian internet server that i use to host some personal domains and runs squid and rTorrent. the server is up and running with no problems but i am confused about a few things. lets say that i named my server (foo), my domain is (example.com) and my public IP is 95.211.133.200 now: should /etc/hostname contains: tango.example.com or tango <----- just the server name should /etc/hosts contains: 127.0.0.1 localhost.localdomain localhost 95.211.133.200 foo.example.com foo should /etc/resolf.conf contains (along with the nameservers) both: domain example.com search example.com or just the first one. are there any other files that i should edit in order to make things right? last thing, the command: domainname returns: (none) i believe it should return (example.com). what should i do to correct that?

  Read the article

• Deleting sender from Outlook Safe Senders using GPO?

  - by Hutch

  We're having an external company do a mailshot to our users. The message contains images that are linked rather than embedded in the image (bandwidth isn't an issue). So of course on recent versions of Outlook you're prompted to download the images, not the end of the world, but it would be nice if that didn't happen. There's a bug in the Office/Outlook ADM/ADMX templates that means that a custom list of Safe Senders won't import unless you follow this: http://support.microsoft.com/kb/2252421 Thing is, if I remove an entry from the Safe Senders file, it doesn't seem to remove it from Outlook, which seems odd?

  Read the article

• Utility to listen on port (Windows 2003 Server)

  - by Gero

  Hi, I need to validate some network connectivity from machine X to a Windows 2003 Server machine. To be able to do so I'm looking for a simple utility that I can run on the Windows 2003 server that will listen on a specified port. It does not have to do anything else. When it listens on the specified port I can do a telnet to that port from machine X and check if all firewalls are open. The Windows 2003 Server machine is already a production machine so I cannot install all kinds of stuff. At this stage we want to ensure that all network connectivity is in place before we do the installation of the 'real' application that will listen that port (don't want to wast time debugging network connectivity issues when we do the actual deployment of the new application. The utility should be a simple command line utility that does not require any installation. What utilities do you recommend? Thanks, Gero

  Read the article

• How can I set Qmail to relay all mail to one address

  - by MoSiAc

  I'm new to qmail it's setup and working like it should. I need to set it to do something a bit different. I need it to take all mail that would be incoming to it and relay all of that to one address as opposed to whatever address they could have possibly set it to. The idea is we have setup a test enviroment and we want no e-mails from a test server to actually go out to real people so this relay server will catch all of that outgoing mail and throw it into a test e-mail account inbox to check for errors and so forth. I'm honestly not sure if this is even possible so if it's not let me know now so I can come up with a different method to manage all these test e-mails. Thanks

  Read the article

• Check the disk for problems on Debian Lenny

  - by Equ

  Hi guys! I just bought a VPS hosting with Debian Lenny (I'm new to all this world). I've managed to install and setup everthing I need pretty well. My testing website works fast as expected most of the time, but sometimes it is really slow (response time is about 5-10 seconds). I checked everything and seems that there are may be some disk issues. How can I check the disk for problems/performance? What else could possible cause such a behaviour? Thank you!

  Read the article

• Does performing a System Refresh keep these folders?

  - by crayzeedude

  Alright, let's make this simple. I'm really contemplating performing a system refresh. What I've been looking for all over is if the process keeps some certain folders. Namely my Documents, Pictures, Videos, Downloads, and Desktop folders. There's some real valuable stuff in there, and I really want to know if refreshing my PC will keep these intact. Also, there is an application located at C:\Pesterchum that I would like to keep intact. Should I back it up, then copy it back into its original location after the refresh? Or will it be left untouched?

  Read the article

• Redirect traffic to local address so iOS speedtest app measures LAN speed

  - by ivan_sig

  I have mounted a Speedtest Mini server on a local LAMP, so I can test my LAN speeds effortlessly just by opening the URL with a Flash enabled web browser, the thing is, I want my iOS and Android devices to test with the LAN server too, not with the WAN, as I'm trying to measure LAN-Only performance. Is there a way so I can redirect the traffic intended to an specific external IP (The one of the real server) to my local server?. I know the servers IP as a short Wireshark analysis gave me the data, but still searching for a way to make that redirect. I have Jailbreak and root on my devices, so playing with system files is not a problem. I've tried mounting a proxy and making redirects by the hosts file and domain names, but it looks like Ookla's app relies on IP address only.

  Read the article

• Detecting hardware and installing drivers in Windows XP

  - by JL.

  I have on my desk a computer that I am reinstalling. I have just completed the Windows XP install , which is professional service pack 3. I have also installed an AV package. Now it is time to install the audio and display drivers. Windows Update does not detect the Display card, and neither the audio device. I really have no idea what devices are present in this system, and I am thinking of opening the case, and reading some IDs from the cards themselves. Before I do this, is there not some kind of tool that can automatically detect hardware and install drivers automatically. If not then at least tell me what devices are present, with some real descriptions, so I can search for drivers.

  Read the article

• Only allow root to change filesystem

  - by Uejji

  The VPS I manage uses a simple hard link rsync archive daily backup system saved to a loop file. This is great, because each backup only takes up as much space as what has changed each day, and all user/group permissions are kept. I would like to give users direct access to their home directories in each backup, but I'm worried about intentional or accidental backup data destruction, as how it stands now users can actually change, destroy or add to backed up data they originally owned. I've been looking for a way to mount this filesystem similar to an ro mount option, but something that would still allow rw access to root, but I've had absolutely no luck. In other words, I want users to be able to view and copy their backed up data without actually being able to change it, and have that data maintain the original permissions. I've got no real preferences as far as filesystem, as long as it's a standard unix filesystem that can preserve permissions, support hard links and deny write access to users without actually stripping the w permission from everything.

  Read the article

• High CPU Steal percentage on Amazon EC2 Instance

  - by Aditya Patawari

  I am experiencing high CPU steal percentage in a Amazon EC2 large instance. I know it means that my virtual CPU is waiting on the real CPU of the machine for time. My question is that what can I do to reduce this percentage and get maximum out of the CPU? Steal percentage is consistently at 20%. System load crosses 10 when this happens. I have checked memory and network and I am sure that they are not the bottleneck. Is that normal for such environment? Also are there any system level optimization techniques for reducing steal percentage form the virtual instance? avg-cpu: %user %nice %system %iowait %steal %idle 52.38 0.00 8.23 0.00 21.21 18.18

  Read the article

• Transporting servers - need special rack/case

  - by Nso

  I am responsible for our companys server infrastructure at trade shows. We have 2 annual shows, 1 in Las Vegas and 1 in Amsterdam, so obviously our servers do quite a bit of travelling. Quite often, it gets home with pieces falling off, and insurance/rebuilding takes ages and cost a lot of money. For now I have been using a wooden rack-box, with steel-reinforced sides/corners, but I am looking for something tougher. Does anyone have experience with sending servers all around the world, without them dieing all the time?

  Read the article

< Previous Page | 375 376 377 378 379 380 381 382 383 384 385 386  | Next Page >