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Don’t delete the content of „c:\windows\ccmcache\“ manually with the File-Explorer: it is managed by „Windows System Center Configuration Manager (SCCM)“. You need „local Administrator“ access to your computer. Let SCCM to cleanup it’s cache for you: 1) open the „Control Panel“ 2) select „Configuration Manager“ 3) go to „Cache“-Tab 4) click „Delete Files“ Wait a second and the CCM-Cache is empty.Read More →

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It’s a two step process to get rid of insecure username/password-authentication. Generate a RSA keypair at your SSH-client btw. Cisco-IOS doesn’t support DSA-keys Configure your network device(s) to assign the (public-)key of this keypair to an user-account This user-account could get privileges from a Radius/TACACS+-Server which could provide access-logs, too. Generate RSA-Key: Windows as SSH-Client I prefer Putty, usually in form of „mRemoteNG“, so i use PuttyGen to generate the RSA keypair. Windows.Start => PuttyGen (x) RSA, 4096-bits are supported, use it [Generate] move the mouse to improve the randomgenerator change the „comment“ – for example replace it by an username add a passphrase –Read More →

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Security is important. But sometimes it’s important, too, to be productive, for example during work hours. Maybe at a trusted customer site with a restrictive security policy to intercept all HTTPs-Traffic using a customer-provided certificate which never fits to the visited web-sites. Most of my technical research jobs using Google aren’t secret, otherwise I won’t pass them to Google, so HSTS for at least Google-Sites doesn’t makes sense in these cases. Google knows that and invented the no-HSTS-Switch: –ignore-certificate-errors Thank you!Read More →