Category: Linux Tips

CVE-2014-7169 BASH Vulnerability for Linux & How to fix it

CVE-2014-7169: BASH Vulnerability Affecting Linux & OS X Systems What is CVE-2014-7169 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed function definitions in the values of environment variables, which allows remote attackers to write to files or possibly have unknown other impact via a crafted environment, as demonstrated by vectors involving the
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Howto Install Wave in a box (Apache) on CentOS

Install Wave in a box (Apache) on CentOS Google had unveiled a real time messaging platform in 2009, and in April 2012 Google discontinued wave and released its source code to open source community. Apache Software Foundation consequently accepted Google Wave into its incubator program. Apache Wave is a distributed, near-real-time, rich collaboration platform that
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Another operation involving the object is currently in progress

If any VM shows error “Another operation involving the object is currently in progress” during a reboot/shutdown on Citrix Xen (XCP) based host, please perform following actions to fix the issue Get the VM UUID: Use the command “xe vm-list name-label=<VM NAME LABEL>”. Output of the command will show the UUID, name-label and power-state of
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Ubuntu Forums Hacked and Down

_ Ubuntuforums.org – The official community forum of Ubuntu Operating System has been hacked by an external attacker. Following is the notification (notifying Ubuntu Forums Hacked) have sent to all the registered users: You are receiving this message because you have an account registered with this address on ubuntuforums.org. The Ubuntu forums software was compromised by an
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How-to create your own systemd service files

Many Linux operating systems, like OpenSuse, Fedora are using Systemd daemon instead of Linux init based daemon (known as systemV). Systemd is meant to provide a better framework for expressing services’ dependencies, allow more work to be done in parallel (concurrently) at system startup, and to reduce shell overhead. I use a script (I made
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Error: Cannot fork: Resource temporarily unavailable

Recently my friend (a Developer) came to me with a problem he was facing on his testing server which executing a Perl script. I have checked and found that the Perl script was throwing error “Cannot fork: Resource temporarily unavailable” while executing it. test@server.test.com [~]# /usr/local/bin/perl /home/test/cr/spamcheck.pl Cannot fork: Resource temporarily unavailable at /usr/lib/perl5/site_perl/5.8.8/Parallel/ForkManager.pm line
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