Server :: Website Which Generate Alot Of Core Files?
Jan 26, 2011
i have a server & there is a website which generate alot of core files, these core files takeup alot of space by time, so i decided to stop it, in WHM the core dump option is disabled, & i used the following command
Code:
ulimit -c 0 but nothing stoped generating core files, i also used the following method http://www.cyberciti.biz/faq/linux-disable-core-dumps/ also this method doesnt stop generating of core dump files, my question is : how i can permenantly stop generating core files for all users or for specific user
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Oct 7, 2009
I want to generate core dump files from my program when it crashes. Its a pretty big process and has about 10-11 threads in it.I have followed the documentation to enable core dump by setting ulimit to unlimited etc. I quickly tried "A demo program creating a core dump" from the following webpage, which succeeds in Segfault and dumping a core file in the directory that I configured.However, I tried running my original program and caused it to crash. I did this by making calls to kill(), raise() or the same null pointer access as shown in the webpage above. In each case, my program crashed but did not generate a core dump file. Am I missing something?My program is in C++ and my environment is Redhat 9.0 (kernel 2.4.20)
Going through the "Why do I NOT get a core dump?" section on the same webpage as above, I can see two potential problems. One - there are issues with the suid/sgid (bullet # 6). I am not able to change any settings with suid because my system does not contain either /proc/sys/fs/suid_dumpable or /proc/sys/kernel/suid_dumpableTwo, my program has threads in it and the bullet # 8 is the problem.
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Jul 6, 2010
I have a test RHEL5 box, sitting in a brand new Dell blade rack on a PowerEdge M610, with a lovely Emulex OCm10102-F-M FCoE card connected to a Cisco Nexus 5000 switch. The whole setup is extremely new (the cards only recently became available for purchase.) We've finally worked with Emulex to get the cards functional, and we are ready to some stress testing to the SAN. My question now is, is there a good tool I can use to generate a large amount of traffic to a LUN? The Wintel team used a windows-only tool that showed an average of 6gigs/second throughput, so I need something that can generate very large files and simulate a consistent throughput to the LUN. I found iozone, but I'm having a devil of a time with it.
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Feb 2, 2011
I try to config my apache server to list all my files: c/c++, php, java files, like the txt file on my server,
e.g /var/www/mydomain/pub
i want to dump all my c/c++, php, java file under the pub directory and I can access it from my domain name,
if I dump txt file, I have no problem to view it, but when I dump c/c++ or php files under pub directory, then I can't view it like regular txt file,
Q: is there anyway I can configure my apache server to view all the c/C++, php, java file as like txt file?
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Feb 23, 2011
config my apache server to list all my files: c/c++, php, java files, like the txt file on my server, e.g /var/www/mydomain/pub i want to dump all my c/c++, php, java file under the pub directory and I can access it from my domain name, if I dump txt file, I have no problem to view it, but when I dump c/c++ or php files under pub directory, then I can't view it like regular txt file, Q: is there anyway I can configure my apache server to view all the c/C++, php, java file as like txt file?
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May 29, 2011
I have collected the sa* and sar* files for the past two weeks , i need to generate the report for these files how can i do so i am using centos 5.5. assist me with a tool or a command to do the same.
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Oct 30, 2010
I was trying to figure out how to generate compressed files in zip format and searched on here. The search produced a list of forum entries on the topic, but all of the instructions were on how to do it in terminal, how to download obscure programs and install them from terminal, then run them from terminal, with all these arcane sets of switches and parameters. Eesh.
It comes with Ubuntu, after all. In the case of zipping files, all you have to do is to go to the File Manager, find the file(s), select it or them, right-click on it or them, and select Compress and file type zip. It's so simple.
There have been a number of other tasks where I wind up spending hours figuring out how to implement the advice offered in these forums through Terminal. The folks who offer the advice often are so good at it that they leave out steps obvious to them, but that take a lot of work for somebody not as skilled at it to find out. After crawling through broken glass to get the job done, and normally screwing something up so it's not quite right once I get it going, I figure out how to do it through the GUI and find out it takes a fraction of the effort.
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Feb 2, 2011
if there is an application available to generate a list with files and folders from a location, like a hard drive or a folder? The list could be in any format, even a text file would be just fine.
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Sep 17, 2010
I have a personal server that is password protected. I convert my movies, and make it so that I can watch them through a browser when I want to. I have quite a few movies. They are sorted into different directories. In each directory there is a WebM folder that contains the video file.
Here is what I want to do:Scan all of the directories and subdirectories in /var/www/ for files with extension of webm.
When a file is found, go to the parent directory and create an html file with the same name as the video, only with an html extension instead of webm.
Automatically enter the following html code into the file with the file name matching the file that was found.
Code:
Is it possible to do this with a script? Is there a GUI program that can do this? I don't mind running the script every time after I convert a movie, but if it could monitor the folders that would be nice.
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Dec 7, 2010
I'm posting because I've read everything I can find on google and in the forum and the man page and still can't get it to work. I did read the FAQ, I hope I have adhered to it.I've tried several things and I don't remember exactly everything I tried and in what order.I've got several (12) HP ProLiant DL140 G3 servers running CentOS 5 that lockup about once a week. These are in a remote colo cage so I all i have access to is the built-in HP lights-out management interface, which includes a console, and ssh. I've been trying to get kdump setup to try to figure out what's going on. As an aside, if I run top on the console (via the management interface) the servers stay up for about a week, if I don't run top they crash within about 48 hours.I've used yum update to update to the latest available kernel (2.6.18-194.26.1.el5.x86_64) and installed the debuginfo and debuginfo-common RPMs from http://debuginfo.centos.org/5/x86_64/I have a single command in the /etc/kdump.conf file:ext3 /dev/sda5
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Sep 8, 2010
I recently upgraded to Ubuntu 10.04. I love the passwords and keys application, but was somewhat surprised at the lack of a context menu in gnome to encrypt a file.
In general, I cannot find how to encrypt files using the keys I generate. Maybe I'm missing something? Probably, I just thought since Ubuntu comes with OOB key generation it would have OOB encryption capabilities.
I've read about seahorse and other ways to ADD encryption, I'm just wondering if ubuntu does it natively. It'd be a good idea to add to brainstorms, right click and encrypt.
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Jul 4, 2011
I streamed video through a my computer with mediatomb yesterday. The problem is that now, I got these huge log files. I am running out of memory (less than 1 gb left) as we speak. They're filled with ufw entries, but my question is:
I read somewhere about a program called logrotate that were supposed to keep logs from getting to big, is this wrong and should mediatomb generate 3 separate log files with 5gb of data each for just 2 hours of streaming?
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Sep 1, 2011
I had some troubles on samba, so I re-installed it.After I uninstalled samba, I noticed old /etc/samba folder/ files were left, so I deleted all of them. Then I installed samba, however, no /etc/samba files were installed.How can I generate default samba configuration files??
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Jan 12, 2010
My Ubuntu Karmic install has a very useful Print-to-File Printer configured which allows me to generate Postscript and PDF files.
I have Windows XP running on Virtualbox and I want to be able to generate PDF files using this printer but there appear to be no Printers configured.
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Feb 23, 2010
I have an existing Nagios installation from before I started working here. It seems to be working well but my boss has just asked for a report of what servers and the associated processes/functions are being monitored. Is there any way to generate this report other than going through all the Nagios configuration files and putting it together manually?
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Mar 4, 2010
I want to generate a temporary random list from a directory of files and then determine the size of an arbitrary block of files from this list (say 1-25 or 26-50) and add their names to a file along with some other info for each name. I can generate a random list with file sizes like this: ls -l | sort -R | cut -d " " -f 6 but i'm not sure how to add up the sizes of just a certain block of these files and at the same time save the file names.
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Jan 25, 2011
I will be relocating to a permanent residence sometime in the next year or two. I've recently begun thinking about the best way to implement a home-based network. It occurred to me that the most elegant solution might be the use of VM technology to eliminate as much hardware and wiring as possible.My thinking is this: Install a multi-core system and configure it to run several VMs, one each for a firewall, a caching proxy server, a mail server, a web server. Additionally, I would like to run 2-4 VMs as remote (RDP)workstations, using diskless workstations to boot the VMs over powerline ethernet.The latest powerline technology (available later this year) will allow multiple devices on a residential circuit operating at near gigabit speed, just like legacy wired networks.
In theory, the above would allow me to consolidate everything but the disklessworkstations on a single server and eliminate all wired (and wireless) connections except the broadband connection to the Internet and the cabling to the nearest power outlets. It appears technically possible, but I'm not sure about the various virtual connections among VMs. In theory, each VM should be able to communicate with the other as if it was on the same network via the server data bus, but what about setting up firewall zones? Any internal I/O bandwidth bottlenecks? Any other potential "gotchas", caveats, issues? (Other than the obvious requirement of having enough CPU and RAM).Any thoughts or observations welcome, especially if they are from real world experience in a VM environment. BTW--in case you're wondering why I'm posting here, it's because I run Debian on all my workstations/servers (running VirtualBox as a VM for Windows XP on one workstation).
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Feb 3, 2010
I was doing some research on SSDs in wikipedia. Then it was showing me links to like DRAM and SRAM. Then there was RAM which I was familiar with. Anyways down to the point.The way your computer works is. When you start up your computer. Whatever is read on the hardrive is put on your RAM memory right.? For temporary and when you start applications. It is put in your RAM from your drive to run faster. This is why having ALOT of ram is useful for having your computer running smoothly. Right?
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Jun 20, 2011
i need to arrange alot of file on up to 25 foloders i want to open about 15 foloders at the same time but i want to see all at the same time can ubuntu arrange 10 foloders in way that i can seen all the files ?
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May 11, 2010
I don't know the answer to the question but I'm have the same issues. Getting alot of lag out of all my apps.
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Aug 21, 2010
I need to generate graph for Huawei AR4620 router . As I don't know the MIB for CPU USAGE I cannot create graph for CPU USAGE of Huawei Ar4620 Router. But I can create graph for Interface Traffic for Huawei AR4620 Router.
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Feb 1, 2010
I'm using RHEL 5.4 and trying to use the system-config-kickstart to generate a ks.cfg file with all the settings already appeneded. After running the "system-config-kickstart --generate ks.cfg" command, the file gets created but it's missing the firewall configuration, partition information and so on.
How can these settings also be generated with the system-config-kickstart?
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Mar 2, 2011
I visited the website of git which contains the sqf files e no download link and the site is pretty confusing for me which has some unique terms like "watch", "Push""Commit","Merge","clone" "Pull" and so on!Queue files seem to be a very nice concept however and I want to test it.After downloading , I have to start sbopkg and use the option for "Create build"? and how do I refrence the sqf file?should it reside in the same directory in which I run sbopkg?
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Jan 25, 2010
I have a VPS with Ubuntu 8.10 64bit and I was looking at / and found like 10.000 files from "core.1000" to "core.10000".What is that? Something I can delete or it is a application that I have installed?
Some of the files at "/":
-rw------- 1 root root 5435392 Jan 15 10:00 core.5755
-rw------- 1 root root 5562368 Dec 14 16:39 core.5757
-rw------- 1 root root 5160960 Dec 22 08:40 core.5758
[code]...
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Dec 15, 2009
I attempted to do the upgrade from 11 to 12 with the Preupgrade Assistant. Unfortunatly something went terribly wrong. Everything went well, excluding the size of partition error, untill the reboot. I did have to remove two previous installs. Now grub gives me an option to upgrade to Fedora 12. When I select this the screen runs code quickly and the screen goes blank with alot of disk activity. Then nothing. Is there a method of recovering this install? I am fairly new to Linux Administration and I am just knowledgable enough to mess things up.
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Apr 4, 2011
I recently setup an email server on Fedora Core (14). Sendmail is running and I am trying to authenticate from a client pc using imaps. I installed Cyrus-imap and it is running and listening on 993. When I try to login, it doesn't accept authentication even though I verified the user's password is correct. (tested with ssh)Is there something I have to do with Cyrus or on the server to allow connections to email? I have not used Cyrus before. I am attempting to access my mail folders via Sendmail and did not make mailboxes in Cyrus. I did allow imaps through the firewall.
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Jan 20, 2010
We're running a sendmail server on a fedora core 9 which we've configured recently. The problem is, the server is working fine but there are some e-mails that enter our server but doesn't get forwarded to the user.
Quote:
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Here it says "stat=Sent" but nothing from the above mail address has been received on the client's inbox. We've experienced this with Microsoft Outlook, Outlook Express and Thunderbird alike so far with Two(2) of our user accounts.
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Jan 4, 2010
slackware and am infact running Vector Linux which is slackware based. I used to use fedora on my old laptop got a new on and tried vector. The mouse on the new one doesn't seem to want to work properly, it jumps alot and usually ends up at the end of the screen unable to move, however does manage to click almost every icon on the screen and change desktops.A USB mouse works fine its just the touchpad.It's a Zoostorm Freedom and I can't even find the windows drivers for it let alone what i need for this. I tried editing the xorg.conf to stop the tab button, which doesn't do anything, installed the latest synaptics and still nothing, tried using what someone else uses and still nothing, I cant even find out what kind of mouse it is!?
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Jul 23, 2010
I would like to ask if there's a program that can archive all emails from my employees to a certain server and can generate reports. specifically all types of emails incoming and outgoing. My employees are aware of my policy due to many confidential files within our office.
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Aug 23, 2010
I would like to run my own server, and I'm thinking of buying a dedicated machine to run it on. I checked out the dell website for a cheap machine to run it on (I don't need high performance - just a personal file server running a few hard drives, and a web/mail server). I noticed that they have some cheap models in their server line that are as cheap as a desktop. Compare:
[URL]
The main difference I see between the desktops and the servers is the use of the Core or Xeon processor, and also, the servers tend to have lower RAM.if I am looking for value, should I opt for a low end desktop or a low end server to run a personal server? Also, what advantage does the Xeon processors and Dell server line have over the desktop models that make it better for running a server?
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