kernel

I’ve recently installed CentOS / RHEL 6.x on the server. I’m getting the following messages in /var/log/messages file logged frequently :

Oct 13 14:00:20 server1 kernel: usb 1-7: reset high speed USB device using ehci_hcd and address 2
Oct 13 14:05:57 server1 kernel: usb 1-7: reset high speed USB device using ehci_hcd and address 2
Oct 13 14:09:18 server1 kernel: usb 1-7: reset high speed USB device using ehci_hcd and address 2
Oct 13 14:11:42 server1 kernel: usb 1-7: reset high speed USB device using ehci_hcd and address 2
Oct 13 14:11:49 server1 kernel: usb 1-7: reset high speed USB device using ehci_hcd and address 2

How do I solve this problem?

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NFS was not designed with security in mind, and has a number of weaknesses, both in terms of the protocol itself and because any NFS installation must expose several daemons, running on both servers and clients, to network attack. I use my Debian / Ubuntu Linux based server only to server web pages and nothing else. How do I disable NFS services under Debian or Ubuntu Linux?

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I‘m using the ldd command to get information about /usr/local/nginx/sbin/nginx binary and I see linux-gate.so.1 library. However, I’m unable to find out this file anywhere on the system? What is linux-gate.so.1 and how do I copy this file?

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I know how to turn off console beep under Gnome Linux desktop. How do I stop console beep under FreeBSD operating systems?

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OpenBSD version 4.5 and above made changes in kernel which prevents booting OpenBSD using KVM technology. OpenBSD 4.4 runs with mbbios enabled. However, due to some sort of bug in KVM it does not boots. The workaround is to disable mpbios. This may or may not happen with your installation.

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How do I find out if my system support Intel – VT / AMD -V hardware virtualization extensions for host CPU using the command line options?

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Under CentOS / Fedora / RHEL I can use rpm -ql packageName command to view contacts of .rpm file. How do I view the contents of a .deb file under Debian / Ubuntu Linux?

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