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  • Process limit for user in Linux

    - by BrainCore
    This is the standard question, "How do I set a process limit for a user account in Linux to prevent fork-bombing," with an additional twist. The running program originates as a root-owned Python process, which then setuids/setgids itself as a regular user. As far as I know, at this point, any limits set in /etc/security/limits.conf do not apply; the setuid-ed process may now fork bomb. Any ideas how to prevent this?

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  • Process limit for user in Linux

    - by BrainCore
    This is the standard question, "How do I set a process limit for a user account in Linux to prevent fork-bombing," with an additional twist. The running program originates as a root-owned Python process, which then setuids/setgids itself as a regular user. As far as I know, at this point, any limits set in /etc/security/limits.conf do not apply; the setuid-ed process may now fork bomb. Any ideas how to prevent this?

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  • Proxy Access to my Squid Proxy

    - by Fake4d
    I have a squid proxy cluster to let my users surf in the internet and on intranet ressources. Now there is a special user, that wants to configure another squid in the net of the users. So this proxy wants to access the internet over a proxy-proxy configuration. It doesnt work at the moment. So here is the question: Whats the configuration line for my squid.conf to allow an IP to use my squid as an upstream proxy?

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  • Mysteriously empty $_POST array

    - by Lex
    Hi! I have this question running on StackOverflow.com. But it turns out that it may be an related to a setting on the server, so I wanted to ask you too. Please follow the link to SO, and help me. Thanks a lot!

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  • How to have your DNS servers forward queries for internet names

    - by Xavier Hutchinson
    I have 2 Domain Controllers / DNS servers on Windows 2012, their IPs are 10.0.1.10 and 10.0.1.11 Another server acts as the DHCP server for clients, and sets their primary and secondary DNS to the IP addresses of the previously mentioned domain controllers / DNS servers. However I cannot resolve internet domain names, presumably as they are not hosted on the DNS servers. So my question is what do I have to do on my setup to resolve external domains? Thank you! Xavier.

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  • Does Windows performance degrade past a certain level of CPU utilization?

    - by Mike Taylor
    Is there a recommended average CPU threshold in running Windows boxes based on experience in other shops? Background: We are running with Windows Server 2003 32-bit OS. Servers are handling a major enterprise-level web application suite with a high frequency of small transactions mixed in with much larger transactions - overall average is 13ms. Our average overall CPU utilization of the Windows servers are ~60% during prime-shift. And we question at what level does the Windows OS begin to shimmy on the CPU scheduling road? Thanks.

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  • How to change the sender of admin mails on a Linux server

    - by Cédric Girard
    Hi, I am sure it is a dumb question, but I want to change the sender of mails sended by my Linux server (centos 5). All mails sent to user "dev" are forwarded via a /home/dev/.forward file, with this sender : [email protected]. host.mydomain.fr is the hostname of this server, but it's an internal server and it does not even have a public IP. How to have a sender like [email protected]? I try to change the "official domain name" (line begining by "Dj" but it change nothing). Regards Cédric

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  • How to set up "vi" shell environment as default

    - by Ency
    It could by silly question, but I can not find answer anywhere. So, I'd like to use vi (you know set -o vi can do the trick) as default in my shell instead of emacs, but I do not want to put it into bash startup scripts. Why? Because I work as verification engineer and I am using several user accounts, which are also quite often reinstalled. Changing of default profile is not answer too, because some of software creates its own home directory (independent on default profile).

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  • Fan Error on Lenovo R61

    - by OrangeRind
    Problem Since the last two days, my Lenovo R61 is giving me a "Fan Error" message during boot, after showing which, it powers down. It does so for 3-4 boot attempts, and after a bit of tapping and such human treatment, in the 6th or so attempt, it luckily starts. Question Why is this happening ? How do I fix it ? Thanks in Advance. :)

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  • Take VMware VM State Home With Me

    - by Chris
    I work in VMs day in and day out, it's wonderful, encapsulating all the stuff I need for development in a contained unit. My question is: I want to be able to take my VM home with me, the problem is the VM is 30GB, and it takes about 30 minutes to copy that much data to my external HDD. Is it possible to somehow save the "state" of the VM, go home, and just resume it like a I would a laptop? Oh... almost forgot, I use VMware Workstation 6.5

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  • Is there a way to unhook a global hotkey in windows?

    - by jonfuller
    I'm running Windows 7, and I installed an application that installed a global hot key (ctrl+shift+space) which conflicts with another application (Visual Studio) that uses that hotkey (though, not globally, only applications specific). The question is, knowing which application it is (ScanSnap Manager) and that it doesn't have a setting to turn off the hot key, is there a way I disable it through Windows somehow? Thanks!

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  • http in web browser address bar

    - by Kumar P
    If we type a domain name in web browser address bar, How it will be add default ? Ex. If i type linkedin.com in web browser address bar, How it will be add www and http:// ----- http://www.linkedin.com/ ....... If i didn't mention ftp also it will add automatically add ftp://...... Based on what concept, it will work. I know it basic and simple question. But please tell about it as clear as possible

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  • MySQL 5.1 or 5.5?

    - by Miko
    Are there significant differences between versions 5.1 and 5.5? The server in question is used to host a medium-sized vBulletin forum. The main benefit of 5.1 is it's available through apt-get.

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  • Which EC2 instance best for Chef server?

    - by hakunin
    I want to setup chef server as cheaply as possible, while leaving it enough room to run without crashing. The only article I found on the subject warned that RabbitMQ would crash on a micro instance due to insufficient memory. The question is: what's the cheapest EC2 instance that can run chef server reliably, considering that I don't use CouchDB or RabbitMQ for anything else in my app, so would probably have to set them up exclusively for chef server on that same instance.

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  • How to set public SSH key for root user on server?

    - by amrnt
    I'm trying to follow Slicehost Document to setup my server. I reached SSH section. I made it as written, but when i logged out from root, i cant access root@IP_ADDRESS -p 30000 again! but i can access user@IP_ADDRESS -p 30000. So, the question is, how to set a public SSH key for root user? Thanks in advance!

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  • internet service providers

    - by gautam kumar
    I am unclear about the differences between international, national, regional and local ISPs. Please explain the differences and their importance, with examples. I am new to this site, so please forgive me if my question is not up to your expectations.

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  • How do I correct a directory incorrectly copied into itself?

    - by Peter Boughton
    Given the following situation... <path>/mydir1/mydir2 ...where mydir2 should have overwritten mydir1, but was instead placed inside, and both directories actually have the same filename. How is that fixed? Attempting to do mv <path>/mydir/mydir/* <path>/mydir/ or mv <path>/mydir <path>/ results in: mv: cannot move `<path>/mydir/mydir` to a subdirectory of itself, `<path>/mydir` This seems stupidly simple, but it's late here and I can't figure it out. There are seventeen such directories to fix (path differs for each, but same mydir name). To confirm, the error message can be caused with this: # cd /path/to/directory # mv mydir/mydir ./ mv: cannot move `mydir/mydir' to a subdirectory of itself, `./mydir' Also tried: # mv mydir/mydir/* mydir/ mv: cannot move `mydir/mydir/otherdir1' to a subdirectory of itself, `mydir/otherdir1' mv: cannot move `mydir/mydir/otherdir2' to a subdirectory of itself, `mydir/otherdir2' and... # mv /path/to/directory/mydir/mydir/otherdir1 /path/to/directory/mydir/ mv: cannot move `/path/to/directory/mydir/mydir/otherdir1' to a subdirectory of itself, `/path/to/directory/mydir/otherdir1' and using a temporary directory: # mv mydir/mydir ./mydir-temp # mv mydir-temp/* mydir/ mv: cannot move `mydir-temp/otherdir1' to a subdirectory of itself, `mydir/otherdir1' mv: cannot move `mydir-temp/otherdir2' to a subdirectory of itself, `mydir/otherdir2' I found a similar question "How to recursively move all files (including hidden) in a subfolder into a parent folder in *nix?" which suggested that mv bar/{,.}* . would do this. But this also gives the same errors, as well as confusingly picking up . and .. from somewhere. # cd mydir # mv mydir/{,.}* . mv: cannot move `mydir/otherdir1' to a subdirectory of itself, `./otherdir1' mv: cannot move `mydir/otherdir2' to a subdirectory of itself, `./otherdir2' mv: cannot move `mydir/.' to `./.': Device or resource busy mv: cannot move `mydir/..' to `./..': Device or resource busy mv: overwrite `./.file'? y Another similar question "linux mv command weirdness" suggests that mv doesn't overwrite and a copy is required. # cd mydir # cp -rf ./mydir/* ./ cp: overwrite `./otherdir1/file1'? y cp: overwrite `./otherdir1/file2'? y cp: overwrite `./otherdir1/file3'? This appears to be working... except there's a lot of files (and dirs) - I don't want to confirm every one! Isn't the f there supposed to prevent this? Ok, so cp was aliased to cp -i (which I found out with type cp), and bypassed by using \cp -rf ./mydir/* ./ which seems to have worked. Although I've solved the problem of getting dirs/files from one place to another, I'm still curious as to what's going on with the mv stuff - is this really a deliberate feature as suggested by Warner?

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