Tag Archives: Linux

Retrieving sunset from BOM

I needed to find the sunset time, so I can turn on my path lights for a couple of hours each night. ┬áThe BOM usually display the sunrise and sunset times when they provide the weather forecast. Having looked at … Continue reading

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Network card order RHEL/CentOS 6

In RHEL/CentOS 5 this was handled by /etc/modprobe.cont. Now in RHEL/CentOS 6 this is now handled by udev. The file that controls everything is /etc/udev/rules.d/70-persistent-net.rules An example of how this file looks is shown below:- # PCI device 0x14e4:0x164c (bnx2) … Continue reading

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Using NTPD with PTPD

We have a requirement at work to synchronise our servers to within a micro-second. To achieve this we used a combination of a CDMA modem (can use a GPS device), PTPD, and NTPD. We used the CDMA modem as a … Continue reading

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