Mikrotik – failover script with link quality check
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IT
Install Kali Linux desktop environment to generic Debian
If you like the kali Linux environment but you want to use the OS for everyday use, it is recommended to do not to use Kali Linux itself. Kali Linux has its own purpose and does amazing in that way. But for everyday use is better to use some standard distribution in my case I
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Repair – DL24 over current repair
All right I do not pay attention and switched ten amperes and not the single amperes, as the result the MOSFET was fried as charcoal. So I disassemble the fan, check the used MOSFET, and replace it. Here is a really simple video on how you can do it. The used MOSFET in my case
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Mikrotik – DHCP Options – TFTP server
Sometimes you need to push the TFTP server value as part of the DHCP process, for example, this is used in most VoIP systems. The VoIP phone use the TFTP server to download configuration files. Here I will show you how to set this value in the Mikrotik DHCP server. 1. Boring stuff The boring
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Proxmox – add more USB devices in VM
Maybe you need to add more USB devices to your Proxmox VM but the web interface only offers three. Or the other USB devices are not detected by VM operation system. So there is a little tutorial on how you can add more USBs. 1. – connect to Proxmox via SSH 2. – find your
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ISPConfig – important files and configurations
MySQL ISPConfig MySQL configuration (root password etc.) /usr/local/ispconfig/server/lib/mysql_clientdb.conf
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ISPConfig – PHPMyAdmin error 500 – additional php version
error in default apache log – /var/log/apache2/error.log If you instaled an additional version of PHP to a server in recent times, there is a possibility the apache is reconfigured to use the new version of PHP to run PHPMyAdmin and not the default one. You can check this by creating a new file, for example,
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Linux – best apps
ncdu space analyzer script record all shell inputs and outputs to file iotop top for hdd fswatch monitor file events in the filesystem nala command line user interface for apt
Standard ICMP return TTL values by OS
Here are the default TTL values of different devices / Operating Systems : Device / OS Version Protocol TTL AIX TCP 60 AIX UDP 30 AIX 3.2, 4.1 ICMP 255 BSDI BSD/OS 3.1 and 4.0 ICMP 255 Compa Tru64 v5.0 ICMP 64 Cisco ICMP 254 DEC Pathworks V5 TCP and UDP 30 Foundry ICMP 64 FreeBSD 2.1R
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Linux important files
~/.bashrc script what is run when you log in to shell non-interactively (for example via su command) or open a separate shell ~/.bash_profile script what is run when you log in to shell interactively way ( login, password) example if you remote connect to ssh.
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