All posts by Michael Albert

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

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openssl: Verifiy failed with error 3 at 0 depth lookup: unable to get certificate CRL

Hi,

openssl can verify certificates against the root CA/intermediate CA chain and also can check a crl list if a certificate is revoked.
Continue reading openssl: Verifiy failed with error 3 at 0 depth lookup: unable to get certificate CRL

Debian: Disable certificate crl check for apt

Hi,

there is an issue in the openssl libraries < version 3 that an crl check of an certificate fails if the file size of the crl file is greater then 100kB.

Continue reading Debian: Disable certificate crl check for apt

Linux: Place own/custom certificates in /etc/ssl/certs

Hi,

sometimes it is necessary to add an own root/intermediate CA top your machine CA store.

Continue reading Linux: Place own/custom certificates in /etc/ssl/certs

WinPE: Load an additional driver from command line

Hi,

if you have bootet WinPE, for example WinBuilder, PEPakery, WIndows Recovery environment, Windows installation DVD … and want to load an additional driver from command line
Continue reading WinPE: Load an additional driver from command line