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 […]
Standard ICMP return TTL values by OS Read More »
~/.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.
Linux important files Read More »
Hi, I spend almost 5 hours debugging why the Lenovo E460 connected to Lenovo One does not see any display connected to the dock. What do I try? update drivers fresh install windows update dock firmware through Windows 7 remove the displaylink drivers, and install fresh drivers from displaylink search every stupid topic on Lenovo
Lenovo E460 with Lenovo OneLink pro dock display not working Read More »
Prepare disk, volumes etc. Identify disk where you wand create an additional directory Mark the device where you want to create an additional storage directory for example sdb. Next, we need to format the disk and partition so we make sure to have parted installed. Then create a filesystem on that device etc. Ok the
Proxmox – add space/device to node Read More »
Network netstat -tulpn | grep LISTEN show all opened TPC/UDP sockets sudo ip link set eth0 up enable/disable network interface eth0-interface name up/down cat /etc/services | less list of services and ports find . -mmin -60 -type f -exec ls -l {} + list changed files in last 60 min find . -type f -newermt
Linux cheatsheet – usefull commands Read More »
If you boot to cmd line If you need to change the timeout after what raspberry blank(turn off) connected displays. You need modify the config file /boot/cmdline.txt and add parameter consoleblank=xxx (replace x with desired value) for example the cmdilne.txt shlould looks like: If you boot to xdesktop If you boot to desktop enviroment you
RPI – Display blank timeout Read More »
First you need to open commmand line and navigate to office installation directory. If you installed the 64-bit version of Office 2016, move to the following folder: C:\Program Files\Microsoft Office\Office16 If you installed the 32-bit version of Office 2016, move to the following folder: C:\Program Files (x86)\Microsoft Office\Office16 Display the current licences Remove the Licences
Remove and Re-add License Key for Office 2016 on Office 365 Read More »
exit Exit actual session, exit from the program whatis [command] Show a one-line description of the command clear clear terminal window man [command] show manual page for command less [file] allow you to view, search in many ways in text files pwd print current working directory ls list files/folders in the directory cd change directory
Essentials linux commands Read More »
Sometimes you need to mount some Windows PE ISO and modify it to match your needs. For example, add your tools to bootable iso. I will show you how mount that iso to Windows, make the required changes and unmount. Prerequisites Install the Windows Assessment and Deployment Kit (Windows ADK) Technical Reference, with Windows Preinstallation Environment. If you’re using the
Mount and edit Windows PE iso Read More »