Author Archives: Ahmed Tawfik

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About Ahmed Tawfik

Cybersecurity Professional, Systems Engineer, OSS & Linux Geek

Force install Oracle 10g Client on Redhat 5

Posted on June 9, 2011 by Ahmed Tawfik

Source: http://publib.boulder.ibm.com/infocenter/director/v6r1x/index.jsp?topic=/director.tbs_6.1/fqm0_r_tbs_oracle_10gR2_client_will_not_install.html

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How to overcome NFS through firewall issues using NFS4, while maintaining compatibility with NFS3 clients (Draft)

Posted on June 8, 2011 by Ahmed Tawfik

NFS4 server uses port 2049 only, no port mapping Run “startsrc -s nfsrgyd” on client and server Must use public file system, list the available using “nfsd -getnodes”, or else you’ll get an error indicating “No such filesystem or directory” … Continue reading →

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Solution to Virtualbox Shared Folders “request not supported” error when accessing/copying files on Windows Guests

Posted on May 30, 2011 by Ahmed Tawfik

Just disable the “Offline Files” Open Windows Explorer -> Tools -> Folder Options -> Offline Files Remove the tick from “Enable Offline Files” There you go! Source: http://forums.virtualbox.org/viewtopic.php?f=2&t=27062&p=188821#p188821

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POP3 Error: “ERR Command is not valid in this state” when connecting to Exchange 2010

Posted on May 19, 2011 by Ahmed Tawfik

In order to fix the problem, issue the following command at the Exchange shell, which allows Exchange POP to use plain text credentials: Set-PopSettings -LoginType PlainTextLogin Then restart the POP3 service, that’s it! Source: http://support.qualityunit.com/knowledgebase/supportcenter/troubleshooting/user-error-command-is-not-valid-in-this-state..html

Posted in Windows | Tagged , | 3 Comments

Resolve Hostname on AIX

Posted on May 19, 2011 by Ahmed Tawfik

host “hostname” e.g. host “myhost” Output: myhost is 10.11.212.134,  Aliases:   wkms2

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