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The Crucial Blog - Archive

November 17, 2008

How to disable Firewall or SELinux in CentOS 5

Disabling the Firewall and/or SELinux on 5 is fairly easy, just run the following command and you can make all the necessary changes!

/usr/bin/system-config-securitylevel-tui

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No Comments

Filed under: Uncategorized by — aaron @ 5:56 pm


July 22, 2008

HyperVM: cannot restore segment prot after reloc: Permission denied

Error:

Failed loading /usr/local/lxlabs/ext/lib/Zend/lib/Optimizer-2.5.7/php-5.2.x/ZendOptimizer.so:  /usr/local/lxlabs/ext/lib/Zend/lib/Optimizer-2.5.7/php-5.2.x/ZendOptimizer.so: cannot restore segment prot after reloc: Permission denied
Zend
2004072203214624464xù

Solution:

If you are receiving this error while installing , then you need to disable selinux.  This can be done by changing it to disabled in /etc/selinux

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No Comments

Filed under: Uncategorized by — aaron @ 1:53 am


June 5, 2008

How to remove application/program Gentoo (emerge/unmerge)

To uninstall a package on :

#emerge –unmerge <application>

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(1) Comment

Filed under: Uncategorized by — aaron @ 10:17 pm


May 28, 2008

Ubuntu: Disabling Service on Startup

A quick way to disable a service so it does not start while your machine is booting is:

# update-rc.d -f <service name to remove>

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(2) Comments

Filed under: Uncategorized by — aaron @ 6:10 am


May 28, 2008

How to enable root login in Ubuntu 7/8

If you are having trouble looking into root on 7 or 8, here is a quick way to enable root access:

# sudo passwd root

# sudo passwd -u root

Disable Root Login:

# sudo passwd -l root

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No Comments

Filed under: Uncategorized by — aaron @ 12:05 am


May 26, 2008

Where did netconfig go? (CentOS/RHEL)

I recently noticed that netconfig had recently disappeared from 5/RHEL 5 so did a bit of research and found that netconfig has been replaced by system-config-network.

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No Comments

Filed under: Uncategorized by — aaron @ 7:40 pm


May 26, 2008

What is the pcscd?

Q: What is the pcscd used for on ?

A: The pcscd is used for manage connections to smart card readers.  You can disable this service unless you are using a smart card reader on your computer or server.

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No Comments

Filed under: Uncategorized by — aaron @ 1:35 am


May 26, 2008

What is hidd?

Q: What is the hidd service on used for?

A: hidd is the bluetooth H.I.D. server.  This is only required if you are using bluetooth on your computer or server.

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No Comments

Filed under: Uncategorized by — aaron @ 1:31 am


May 26, 2008

What is avahi-daemon?

Q: What is the avahi-daemon service on ?

A: avahi-daemon is a service which enables service discovery on a local network. If you are running a server, this service is not required.

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No Comments

Filed under: Uncategorized by — aaron @ 1:30 am


May 26, 2008

What is bluetooth?

Q: What is the bluetooth service used for in ?

A: Used for all bluetooth services.  This is only required if you use bluetooth on your computer/server.

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No Comments

Filed under: Uncategorized by — aaron @ 1:27 am




     

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