How do I set grub so that in my dualboot with Windows and Ubuntu Linux.
The two ways are:
I have a client who uses a Cisco VPN to protect their network, and I exclusively use Ubuntu in my consulting work. At the moment, they don’t easily work together out-of-the-box, even though they should. To get access to their network, I was provided with a PCF file, used to configure VPN client software to connect to the VPN server. However, after importing the configuration file, I simply couldn’t connect.
In theory, you can use the standard NetworkManager utility to connect to your Cisco VPN, but it doesn’t actually work. I’ve outlined the process that’s supposed to work, and the one that’s necessary to actually make it happen. Read More
Find out the percentage of space:
df -H | grep -vE '^Filesystem|tmpfs|cdrom' | awk '{ print $5 " " $1 }'
Output:
71% /dev/hdb1 98% /dev/hdb5
sudo tail /var/log/apache2/modsec_audit.log --lines 60 | less
This setup will help you to route all outgoing email through your ISP SMTP server using different port number and that SMTP server requires you to authenticate before relaying. For this scenario, the ISP SMTP server is Exim.
1. Edit this file /etc/postfix/main.cf and add relayhost to point to your ISP SMTP server with port number as below: –
relayhost = mail.example.com:2525
2. Add the next parameter to allow Postfix to authenticate before relaying outgoing email as below: –
smtp_sasl_auth_enable = yes Read More
To check whether HAproxy is working properly, we can do the following.
First, prepare test.php file with the following content:
< ?php
header('Content-Type: text/plain');
echo "Server IP: ".$_SERVER['SERVER_ADDR'];
echo "\nX-Forwarded-for: ".$_SERVER['HTTP_X_FORWARDED_FOR'];
?>
SCP allows files to be copied to, from, or between different hosts. It uses ssh for data transfer and provides the same authentication and same level of security as ssh.
Examples
Copy the file “foobar.txt” from a remote host to the local host
$ scp [email protected]:foobar.txt /some/local/directory
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Linux only: This is an excellent tip that changes the prompt to red when using the root account from the terminal—as a reminder to be more careful. Using the tip is relatively simple—just edit the /root/.bashrc file and add in the following, preferably commenting out the existing lines that set the color, though you can simply add this line to the end of the file.
Read More
UUIDs (Universal Unique Identifier) for network interface card can be generated using the following command (CommandShell):
uuidgen [device]
MariaDB is a drop-in replacement for MySQL. It is easy to install, offers many speed and performance improvements, and is easy to integrate into most MySQL deployments. Answers for compatibility questions can be found at: MariaDB versus MySQL – Compatibility. MariaDB offers more storage engines than MySQL, including Cassandra (NoSQL, in MariaDB Version 10), XtraDB (drop-in replacement for InnoDB), and OQGRAPH (in MariaDB Version 10).