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ulimit soft limit for file descriptors - for a non-root user on CentOS 5.6

I am needing to increase the soft limit for "file descriptors", and make it effective for a non-root user (lets say user1). Ran these commands, while logged in as user1: >ulimit -a core ...
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390 views

Number of max open files for a process stays low

I have a process running on a ubuntu under a user which its ulimit is 400000 for both -Hn and -Sn options. The /etc/security/limits.conf value for that user is 100000. However, when I execute cat /...
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49 views

Is it possible to apply special restrictions for a content of a directory?

I want restrict permissions to the content of a directory /abc/def/: disable links (symbolic or hard) limit the number of write permissions pointing to the same file (e.g. to 1, so only one process ...
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12 views

Get number of currently open files (descriptors) in all programms

I've recently read about sysctl kern.maxfiles showing the limit for open files. But how can I print the number of currently open files to see how many are actually used? I only found information on ...
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10 views

Tool to connect to a file descriptor for I/O

I'm looking for a unix tool which can connect me to a specific file descriptor and do some I/O operations on it, assuming that the user permissions are valid. What could I look to use?
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175 views

what are sane open file descriptor limits on linux?

Where can I get good guidance on sane values for open file descriptor limits on linux. We have users asking for massive numbers as their limits and I am unsure of the impact of this and what should ...