Hi
‘ddrescue –direct’ will open the input with the O_DIRECT option for uncached reads. ‘raw devices’ are not needed on newer kernels. For older kernels see below.
Continue reading Linux: Disk recovery with ddrescue
Tag Archives: linux
Recovery: Recover files from SD Cards or dd image
Hi,
linux has 3 tools for recovering files from a (damaged) SD Card or from an dd image taken by ddrescue. Usually all tools need an empty output directory.
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Network: Forwarding SNMP Traps by mail with snmptrapd and snmptt
Hi,
this post describes a simply way to forward all traps by E-Mail received via SNMP.
This process is splited in several steps
- Receive the traps => snmptrapd
- snmptrapd calls the trapshandler script after each received trap. The trap details are handed over to the script by STDIN
- The trap handler is /usr/sbin/snmptthandler. This script spools all traps to /var/spool/snmptt
- The snmptt gets the traps from the spool folder, translate them in a human readable format and calls a custum script defined by snmptt.conf
Continue reading Network: Forwarding SNMP Traps by mail with snmptrapd and snmptt
Linux: Switch keyboard layout in (bash) shell
Hi,
linux allows to change the keybaord layout “on the fly”.
Continue reading Linux: Switch keyboard layout in (bash) shell
Debian: Enable apt debug logging
Hi,
for troubleshooting purposes (i.e. certificate issues) it is sometimes to enable the debug logging of apt.
Continue reading Debian: Enable apt debug logging