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• Sun OS 5.10 not honoring .hushlogin

  - by nixomose

  I scp and ssh a zillion times a day, and because of our corporate policy I can't get rid of /etc/issue or /etc/motd on the destination machines. So whereas I just want to see the results of my scp or ssh, all I ever end up seeing is thousands of copies of the motd. .hushlogin doesn't seem to be honored. Any other ideas on how to get rid of the message display? Is there some sshd config setting I don't know about (though I probably couldn't change that either)? Is there some curiously sunos/solaris specific way to achieve the goal?

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• Passenger/Rails not releasing memory

  - by michaeldelorenzo

  I have an Ubuntu server running three separate Rails (2.3.8) applications with Passenger, REE and Apache. Recently we started experiencing problems with ruby processes eating up memory and consuming entire cores on our server. Here's what we're getting... %CPU PID USER COMMAND 99.9 1717 nobody Rails: /var/www/api 99.6 5542 nobody Rails: /var/www/api 97.3 1223 nobody Rails: /var/www/api 4.7 5537 nobody Passenger ApplicationSpawner: /var/www/api 10.5 1801 nobody Rails: /var/www/api We've also seen instances where there have been over 100 instances of Apache running. These applications have been running for a few months without an of these issues, but in the last day or so we've been noticing this. The site referenced here is a Rails application that is a RESTful API so it serves many requests every minute. Any guidance on what we should be checking or looking out for would be appreciated.

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• Outlook 2003 won't send mail

  - by RKid

  A colleague's e-mail has just started playing up - he's using Outlook/Office 2003 on a Win XP SP3 machine. Yesterday his mail has suddenly stopped being received, although there are no errors of any kind that i can see. It was only noticed because he didn't have any replys all day. His e-mails seem to send fine - no errors come up, the mail goes into Sent Items as usual, but it never arrives at it's destination. However, when mail is sent from Outlook Web Access, e-mails send fine. All connections to the server appear fine and outlook is 'connected' but I've had a look at the message tracking on our Exchange 2003 server and no messages are appearing when sent from outlook, only when sent through OWA. Where should i be looking ? Thanks.

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• Under *nix, how can I find a string within a file within a directory ?

  - by roberto

  Hi all. I'm using ubuntu linux, and I use bash from with a terminal emulator every day for many tasks. I would like to know how to find a string or a substring within a file that is within a particular directory. If I was knew the file which contained my target substring, I would just cat the file and pipe it through grep, thus: cat file | grep mysubstring But in this case, the pesky substring could be anywhere within a known directory. How do I hunt down my substring ?

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• Raid 5 scsi fault

  - by HaLaBi

  I have no much knowledge about servers and I was looking all day around the internet about finding a solution to my raid 5 problem. All of a sudden two disks failed. The server won't boot (HP Proliant, windows 2003 R2, very old maybe 10 years old). I know that if one disk is faulty then I can add a new disk and rebuild it and things will be fine, the problem is two went faulty :( is this normal? two at the same time? is there any other thing I can do and I am not aware of? other than taking them out and reinserting them back? Windows won't boot. The Array menu shows that disks 0 and 4 are "Missing". Any other tricks or things to do? It is important because for some unknown reason the back up job did not work for a month and I just found out, so I need to make these raid 5 back online again.

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• Linux freezes every few seconds

  - by Zeppomedio

  We're having an issue where one our Linux boxes (Ubuntu 10.04 LTS, running on EC2 with a quadruple-large size, 68GB of RAM and 8 virtual cores with 3.25GHz each) freezes up every few seconds. Typing in an ssh session will freeze, and running strace on one of the Postgresql processes that's running usually shows: 02:37:41.567990 semop(7831581, {{3, -1, 0}}, 1 for a few seconds before it proceeds (it always gets stuck at that semop). OProfile shows that most of the time is spent in the kernel (60%) versus 37% in Postgresql. The result of these halts (which began suddenly a day ago) is that load on the box has gone from 0.7 to 10+, and causes our entire stack to slow done. Any ideas on how to track down what's going on? iostat doesn't show the disks being particularly slow or overloaded, and top shows user cpu % spike from 8% to about 40% whenever these back-ups happen.

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• determine the archetecture of a mac from the command line or script?

  - by Brian Postow

  I'm writing a shell script, and I need to know the archetecture, ie PPC or Intel. Back in the day, there was a program /bin/arch that told you, but my mac doesn't seem to have it... Is there an easy way I can do this? Grep for something in a logfile? call some other program that spits that out as a side effect? It would be nice to know what OS Version I'm running too, but that may not be necessary. thanks

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• Connect macbook to my LAN through a VPN - best solution? [closed]

  - by LewisMc

  So I have a LAN connected via a ADSL/PPPoA, this is using a bog-standard DLink router supplied by my ISP (talktalk UK). I have a NAS within the LAN that is running FreeNAS and I want to be able to connect to it when I'm out and about. It's running an atom so it's quite low on juice consumption but I don't want to have it on all day and night so I've been waking it via a magic packet and booting it down from the web admin when I need it. So I want to connect to the LAN, I presume via a VPN, to be able to send a magic packet. But what is the best method to accomplish this, or is there an easier way? I've been looking at the cisco 857 integrated router and the Netgear prosafe 318(behind modem) but not sure If I'm on the right track with what I want to achieve as I've not much experience or knowledge with VPN's or networking (software engineering student). I have tried port forwarding but to no avail, either with magic packets or even connecting outside the LAN via DYNDNS. Thanks,

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• cPanel IPTables custom rules

  - by James Haigh

  Hi, I'm trying to allow a host access to port 3306 by IP. I've added the rule and ran an iptables-save and also service iptables save. These commands show as "OK" with no reported errors. And this works absolutely fine. Now, the server hasn't been restarted at all since I've been having this problem, but every day when I start developing on the server that needs mySQL access, it reports that the connection is refused. Back on the mySQL server, all I need to do is service iptables restart and everything then works as normal. The mySQL server is a CentOS cPanel VPS running on OpenVZ. Anyone know how I can make these rules persist? Is it something cPanel is doing overnight that is messing with my config? Thanks.

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• Empty mails received from Plesk-driven server

  - by goreSplatter

  From my Plesk managed server I keep receiving emails addressed to the configured administrator (me). Nothing special there. These mails are sent from an empty sender with no body, no subject nor any other relevant headers. I have changed the server administrator's e-mail address to an alternate one which is then the recipient. The mails are sent at irregular intervals. With variations in the timestamp I get an email every 30 minutes. Then there's a break and two and a half hours later I get the same email. I already have turned of crond for more than a day to see if this is the source of the problem. On that server there is no "foreign" software running which would cause that behavior. I have no more guesses as to why this is happening. Any suggestions?

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• How do I view the location of an swf file that is obfuscated somehow.

  - by atticus

  Specifically, I'm trying to view Elmo's Keyboard-o-rama fullscreen. The original swf file has been moved and obscured. For a toddler, this game really needs to be full screen! The toddler doesn't mind too much and has already lost interest in the game for the day. But it's just driving me crazy. I've tried the usual method of viewing the page info in Firefox to no avail. And before people start trying to delete this for being game specific, I would like to know how to do this for any obfuscated swf location, not just games. Thanks in advance. If anybody knows how to find the appropriate information in tcpdump or wireshark, that could probably help, too. That's what I'm trying to do right now.

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• All browsers hang on windows 7 in tab says 'Waiting for...' need restart

  - by Lakshmila

  I'm having a frustrating problem with browsers on OS windows 7 home premium. IE 10: My web browsing works ok for a while and then pages freeze and tab at top says "Waiting for ...' and never loads. Strangely I can still get to Google search results but if I click anything it freezes. Chrome freezes too and says 'The page has become unresponsive ...kill page' Safari stops also. I have tried clearing cookies, cache, turning off Bitdefender firewall and nothing apart from a restart fixes it. consequently I am forced to restart my computer several times a day to stop this browser hang. I have no idea what could be causing this ..any help greatly appreciated.

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• Mac OS X 10.6.8 - Can't remove SophosUpdate Packages/Folders on Desktop

  - by Greg_the_Ant

  Every day a new "SophosUpdate" folder/package will appear on my desktop (see screenshot). When I highlight it my trash can turns into an eject button. When I drag them to the eject button nothing happens. Also nothing happens when I right click one of them and select "eject". The only thing that got rid of them once was starting up in safe mode but they keep coming back after that. Does anyone know what I can do? I'm stuck.

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• Certain websites won't load with DHCP server

  - by Simon E

  Hi, I recently configured a server using Windows Server 2008 to take over from my router using DHCP Server. I disabled my router from assigning IPs too. All works well, except for certain sites that refuse to load e.g. "Firefox could not find www.amazon.co.uk" http://www.google.co.uk/ http://www.amazon.co.uk/ http://www.jobsite.co.uk/ I think it may have something to do with co.uk domain. If I reboot the server everything goes back to normal but of course thats not a good solution to do that every other day. Does anyone know of this problem or what it might be - I am very new to server technology.

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• Dealing with employees that use Hotspots? [closed]

  - by javasocute

  Recently a consultant revealed to me and my superiors that a particular department in my company had a tremendous decline in productivity over the past year. This department happened to mostly work with laptops and tablets and thus had wireless. Our barracuda did not display any vast amounts of internet entertainment and so I was initially puzzled by his statement. However he explained that more and more employees are using "hotspots" that when not broadcasted, become invisible to our network. So basically these people could connect to hotspots and watch youtube all day and we would never know it. The consultant also said that this was becoming an issue for many companies. So my question is, how can I detect invisible hotspots? I was browsing google and there are several different programs that can scan for such access points. But I am hoping to get a recommendation from the serverfault community. Thank you.

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• init.d service died

  - by jerluc

  Adapting some code from a linux forum, I've added a service script to /etc/init.d on my ubuntu natty server to start/stop/restart node.js It literally was working the first day I made it, but then today, after viewing my website this morning, the server threw a 404, and upon further inspection, the node.js process was gone. So I went to start the service again, only this time, node.js didn't start at all, and ever since I haven't been able to get my service script working. Below is the entire script: #!/bin/sh # # Node Server Startup # case "$1" in start) echo -n "Starting node: " daemon node /usr/local/www/server.js echo touch /var/lock/subsys/node ;; stop) echo -n "Shutting down node: " killall node echo rm -f /var/lock/subsys/node rm -f /var/run/node.pid ;; status) status node ;; restart) $0 stop $0 start ;; reload) echo -n "Reloading node: " killall node -HUP echo ;; *) echo "Usage: $0 {start|stop|restart|reload|status}" exit 1 esac exit 0 Thanks for any help!

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• What is the cost of running a desktop machine at home?

  - by vinc

  How much does it (roughly) cost to leave my personal home computer running 24/7 for a year? I'm not doing anything unusual; I run a webserver for myself, surf the web, write some code. I don't have any specific specs. So for example there might be the cost of electricity, internet connection, and possibly some other factors that I've overlooked. I'm trying to decide whether it would be a good idea to turn off my computer when I'm asleep and not using it. Is the cost negligible, maybe 1 USD per day, something in between or more?

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• Is rsync corrupting my RAR?

  - by Mark Henderson

  We have two qnap devices - one in our datacentre and one off-site. We have hundreds of password protected RAR files stored on the qnap that contain virtual machine image snapshots, with approx 20 of them being created each day. We synchronise the two devices using rsync, and it looks like all the files are being rsynced OK - they come over and have the same file size and all the files are present and accounted for. However, when I try to open the RAR files on the remote site, I get Cannot open \\qnap01\FromDatacentre\Snapshots\DB001SQL1-20110626.rar I can open the RAR files on the local site just fine, so I assume that something is getting mangled during the rsync procedure. However, the older files (pre 2011-06-20) work just fine, it's something that's only started happening in the last week. There haven't been (as far as I know) any changes to any of the devices, setup or configuration in that time. Obviously something has changed though. Where should I start investigating?

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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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• Very frequent "Server not found" messages

  - by Village

  Recently, while browsing and clicking or typing an address, I get: "Server not found", "Connection was reset", or a half-loaded page. Usually the page loads instantly after clicking reload, but this means I must reload on every page. Images on one site, but stored at a different server don't load until reloading for a second time. Clicking "submit" on many sites frequently doesn't work unless I reload many times. Sometimes sites load, but without colors and formating, appearing as if they would in Lynx. This seems to happen with every Web site. My Internet service claims everything on their end is fine. This happened a day after running an update in aptitude. I have not updated any hardware. I have tried clearing Iceweasel's cache. I do not have any router or other equipment. What could be going on? How can I troubleshoot this? PPPoE connection, Iceweasel 3.5.16, Debian 6

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• Grep /var/log for hacker/script kiddy activity and e-mail?

  - by Jason

  CentOS 6 Apache Server version: Apache/2.2.15 (Unix) Thinking about how to automatically, once a day, grep all the logs in /var/log/httpd for hacker, phishing, etc activity and e-mail it to myself so I can evaluate what I might need to do. But what are the patterns I can look for? IE, we dont run Wordpress and we see a lot of attempts to access Wordpress related content, obviously for an exploit. Same with PHPMyAdmin. I could do something like repeatedly, matching common patterns we see. # grep -r -i wp-content /var/log/httpd/ # grep -r -i php-my-admin /var/log/httpd/ How do I e-mail myself this the results of each grep command or better yet all Grep results in a single e-mail?

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• How to set up strongswan or openswan for pure IPSEC with iPhone client?

  - by Shabbyrobe

  I'm having trouble finding concrete, up-to-date information for how to set up strongswan or openswan to be used by the iphone's VPN client. My server is behind a budget linksys NAT router. I found this, but it mentions a whole bunch of .pem files with no reference for how to create them. Unfortunately, the "fine" manuals for both packages were quite inscrutable and unfriendly to a novice. I've set up OpenVPN before and managed to get serviceable results very quickly, but after a day and a half of reading out of date docs, I barely even know where to start. Any help would be greatly appreciated!

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• (Possibly) Corrupted DDCrypt self-decrypting file

  - by sca

  I recently discovered some files I had encrypted and archived on a CD using DDCrypt 2.0, which is a small encryption utility from back in the day. One of its functions is to create self-decrypting files, which are essentially EXE files that you can enter a password and then have the file extracted onto your filesystem. Unfortunately, I can't seem to get them to do this properly. They appear to be decrypting and then at the last moment I get the error: Error opening encrypted file C:\users\username\Temp\dde3cfa.tmp Reason: Success and then another dialog immediately says Error extracting ddc file. I'm not really sure what this means (certainly not success), but I've checked out the temporary file and it appears to be garbage data (although of the right file size). I don't know if anyone has an idea what might be done here to extract the files, or has dealt with a similar situation before. Any ideas are appreciated! Thank you in advance for your time and any help you can provide.

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• Distributed filesystem across a slow link

  - by Jeff Ferland

  I have an image in my head where a link is too slow to realize the real-time transfer of files, but fast enough to catch up every day. What I'd like to see is a master <- master setup where when I write a file to Server A, the metadata will transfer to Server B immediately and the file will transfer at idle or immediately when Server B's client tries to read the file before Server A has sent it. It seems that there are many filesystems which can perform well over fast links, but I don't know of any that do well with a big bottle neck and a few hours of latency.

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• How can I send SMS from my PC using my Android Phone (Galaxy S3)

  - by Dean Rather

  I've been a long-time Nokia fan, but finally succumbed to the Samsung Galaxy S3's amazing screen, & Android's Open community. One feature I use a lot (about a hundred times a day...) is Nokia PC Suite's ability to send SMS via the phone. It: Uses my phone's contact list. Notifies me when I get an sms. Allows me to send SMS using my PC's keyboard. Essentially turning SMS into just another IM medium I use on the PC. How will I do this with the Samsung Galaxy S3 + Windows 7?

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