Converting crt to PEM
Took two steps:
openssl x509 -in input.crt -out input.der -outform DER
openssl x509 -in input.der -inform DER -out output.pem -outform PEM
The IO scheduler blk_mq was designed to increase disk performance – better IOps and lower latency – on flash disk systems, with emphasis on NVME devices. A nice by-product, is that it increases performance on the “older” SCSI/SAS/SATA layer as well, when the disks in the back are SSD, and even when they are rotational…
I’ve had a belief for quite a while now that Linux, unlike other types of systems, was unable to produce any I/O SNMP information. I only recently found out that it was partially true – all production-level distros, such as RedHat (and Centos, for that matter) were unable to produce any output for any SNMP…
I have created an RPM package, and SRPM package, which I will share here, for smartmontools version 6.5 on RHEL 6. Note that the official version is 5.43 which is clueless with many modern SSD disks. I have yet to test it correctly, and in general – use at your own risk. smartmontools-6-5-1-el6-src Related posts:…
Doesn’t work. It will work fine up to the step where you actually try to active one of the VMware virtual machines. And then your kernel will panic. Works fine without Xen kernel (but without Xen, of course). Pity. Was tested on Centos5.1 64bit. Related posts: A note about VMware-Server machine security VMware experiance –…
As an administrator, I am responsible for many setups and configurations, sometimes hand tailored to supply an answer to a set of given demands. As a human, I err, and the common method of verifying that you have avoided error is by answering this simple rule: “Does it work after these changes?” In the world…
Recently I have installed several Redhat systems on IA64 platforms. Since it required only slight adjustments, and since there were two sets of systems, RHEL3 Update2 and RHEL4 Update3, I have decided to use Kickstart for both, each with his own ks.cfg file. For lack of any other explanation at the moment, I can only…