Config Server Firewall (CSF) – a software product created for automatic server protection.
Continue reading “Installing and Configuring Config Server Firewall (CSF) in Ubuntu”Category Archives: Linux
Installing and Configuring a TFTP Server in Ubuntu
TFTP (Trivial File Transfer Protocol) It is mainly used for initial loading of diskless workstations. TFTP, unlike FTP, does not contain authentication capabilities (although it is possible to filter on the IP address) and is based on the transport protocol UDP.
atftpd server
atftp client
Install:
sudo apt-get install atftpd atftp
The server uses the port: 69/udp
The default directory is /srv/tftp if it does not exist, create:
sudo mkdir -p /srv/tftp
sudo chown nobody /srv/tftp
To start automatically, you need to comment out (put # at the beginning of the line) the start line in /etc/inetd.conf:
#tftp dgram udp4 wait nobody /usr/sbin/tcpd /usr/sbin/in.tftpd –tftpd-timeout 300 –retry-timeout 5 –mcast-port 1758 –mcast-addr 239.239.239.0-255 –mcast-ttl 1 –maxthread 100 –verbose=5 /srv/tftpd
And change the value of the variable USE_INETD in the file /etc/default/atftpd from true to false.
This can be done in any editor, for example using nano:
sudo nano /etc/default/atftpd
(in the editor the key combination Ctrl+O is used to save the changes, and Ctrl+X to exit).
To apply the changes and run atftpd, run the following command:
sudo /etc/init.d/atftpd restart
Done, TFTP server should work, accept and return files from the /srv/tftp directory.
See also my articles:
IPTables rules for TFTP
Starting a TFTP server in Windows
Configuring DHCP + TFTP for DOCSIS
Install and configure tftpd-hpa
How to Download from SVN
To download data from the SVN repository in Ubuntu, you must first install:
sudo apt-get install subversion
In CentOS:
sudo yum install subversion
After installing subversion, you can download data from SVN simply by running the command:
svn checkout http://address
The data will be saved in the current directory.
Install and configure ntopng
Below I’ll describe the installation of ntopng in Ubuntu.
We select the necessary package on http://packages.ntop.org/apt-stable/ and download it:
wget wget http://apt-stable.ntop.org/16.04/all/apt-ntop-stable.deb sudo dpkg -i apt-ntop-stable.deb
Further we carry out:
sudo apt-get clean all sudo apt-get update sudo apt-get install pfring nprobe ntopng ntopng-data n2disk nbox sudo touch /etc/ntopng/ntopng.start sudo /etc/init.d/ntopng restart
If new versions of ntopng are released, then you can update by running the commands:
sudo apt-get update sudo apt-get upgrade
After installation, the configuration file will be located in the /etc/ntopng/ntopng.conf directory
I will give an example of its content:
-w=3000 -d=/var/tmp/ntopng -G=/var/run/ntopng.pid --httpdocs-dir /usr/share/ntopng/httpdocs --local-networks="192.168.0.0/16,10.0.0.0/8,172.16.0.0/16"
Restart / stop / start ntopng with commands:
sudo /etc/init.d/ntopng restart sudo /etc/init.d/ntopng stop sudo /etc/init.d/ntopng start
You can check from the console with the command:
sudo /etc/init.d/ntopng status sudo netstat -tulpn | grep :3000
Open the web interface by typing in the address bar of the browser:
http://HOST:3000
The standard login and password are admin/admin.
See also:
Install and configure nprobe
The solution to the error “Missing /etc/ntopng/ntopng.start. Quitting”
Installing and Configuring Postfix
Postfix — mail transfer agent (MTA) with open source.
Assume that the IP address of the server is configured with a domain name, from which the mail will be sent in the future.
Continue reading “Installing and Configuring Postfix”How to troubleshoot Samba autorun in Linux?
I installed and configured Samba once on the next Ubuntu Server 14.04.5 LTS as described in this article Installing and Configuring Samba in Linux.
And after restarting the system, not everything was started, smbd and nmbd were started, if they can be restarted like this:
sudo restart smbd sudo restart nmbd
But you can not connect to the disk and you still had to execute the command:
sudo service samba start
For samba to automatically start at system startup, execute the following command:
sudo update-rc.d samba defaults
Done.
Installing and using Conky in Linux
Conky – system monitor.
The installation command in Ubuntu:
sudo apt-get install conky
In CentOS/Fedora:
sudo yum install conky
Start command:
conky
At the first start, I displayed this window:
The configuration files are located in the /etc/conky/.
To read the built-in documentation, you can run the following command:
man conky
Example of launching in a background with an update interval of 2 sec.:
conky -d -u 2
To stop, you can use the command:
pkill conky
Installing Ostinato in Ubuntu
Ostinato – program for network analysis and traffic generation.
The Ostinato installation command in Ubuntu:
sudo apt-get install ostinato
The launch is performed in a graphical mode by reference or by the command:
sudo ostinato
To remove Ostinato, you can run the following command:
sudo apt-get purge ostinato
Installing and Configuring JIRA in Ubuntu
JIRA – project management system.
Describe the points that need to be done for installation:
Continue reading “Installing and Configuring JIRA in Ubuntu”Installing Eclipse in Ubuntu
Eclipse – the environment for developing modular cross-platform applications.
Continue reading “Installing Eclipse in Ubuntu”