By default, MikroTik distributes dynamic IP addresses and other network settings to all clients using the Dynamic Host Configuration Protocol (DHCP) protocol. Sometimes you need to configure your MikroTik router so that a certain device gets the same static IP address every time it connects to the network. This note shows how to set the […]
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Kubectl: Get Logs From All Pods
Pod logs are a vital component of any Kubernetes cluster as they contain a detailed record of activities and events that occur inside containers. During some maintenance or troubleshooting you might want to get logs from all Pods using a kubectl or to watch/follow them in a real-time. This note shows how to get the […]
IPTables: Monitor Network Traffic in Real-Time
In a combination with a watch command an iptables can be used to monitor a network traffic in a real-time. This is especially useful for troubleshooting various network issues. Bellow you will find some examples of how to monitor the network traffic in a real-time using the iptables and watch commands.
MikroTik: Show Connected Devices IP & MAC
If you wonder how to find out which devices are connected to a MikroTik router, you will find the answer in this note. Below I am showing 3 different ways of getting MAC and IP addresses of the devices connected to the MikroTik router, using a terminal or a Winbox/Winfig. It is up to you […]
TCPDump Examples – 30 Best Commands Ever!
tcpdump is a command-line network packet analyzing tool, that is absolutely essential for troubleshooting networking issues. It is used to display network packets transmitted over network interfaces connected to the system on which tcpdump is installed. tcpdump has a large set of flags and arguments used to specify various options, which can be pretty overwhelming […]
Disable IPTables Temporary – Ubuntu, Debian, CentOS
If you can’t access some service on a remote Linux machine with enabled iptables, this may be caused by the firewall rules. To troubleshoot connectivity issues, you can temporary disable iptables to see if it is causing them, and then re-enable it. This short note shows how to temporary disable iptables on Linux (Ubuntu, Debian, […]
MikroTik: Backup & Restore System Configuration
MikroTik routers have a backup feature that allows to save and restore a system configuration. This is one of the most important features in MikroTik as it allows to restore the device’s configuration after a software crash or to re-apply the same configuration on a backup device (with the same model name and number) after […]
MikroTik: Change MAC Address – CLI, WinBox & WebFig
Some Internet service providers (ISPs) only allow devices with particular media access control (MAC) addresses to connect to the Internet. If you’ve decided to replace your ISP’s router with a MikroTik, you may need to clone the MAC address of a wide area network (WAN) interface to the new device. Below I will show how […]
Convert JPG/PNG Image to PDF on Windows for FREE
Windows allows to convert JPG/PNG images to PDF for free without having to install any additional software. There are also many sites offering to convert JPG/PNG images to PDF online, but do you really trust them enough to upload your personal documents to their servers, especially when there is an easy way to create a […]
Remove Password From PDF – Unlock for FREE
If you have a PDF file protected by a password, you may wonder how to unlock it and remove the password protection so you don’t have to enter the password every time you want to open the file. The PDF file protection can be easily removed by using a “Print” feature that is present in […]