3

I've been trying off and on to get a LAMP development server operational behind my corporate firewall (McAfee Web Gateway). I have a Ubuntu/Trusty64 image on a virtualbox VM provisioned through Vagrant. I cannot get "some" {most} repositories to load for a proper sudo apt-get update. I'm getting a 401 authentication required error on all 'security.ubuntu.com trusty-security/*' sources and 'archive.ubuntu.com trusty/*' sources and all fail to fetch. Therefore most all sudo apt-get install {whatever} fails and I cannot add the necessary PPA repository to install the LAMP environment I want.

I can turn off SSL verification for some things and can get many things installed - but I need SSL working correctly within this environment.

Digging deeper, I find that if I curl -v https://url.com:443, I get the

curl(60): ssl certificate error: unable to get local issuer certificate.

I have the generic bundle 'ca-bundle.crt' installed locally in /usr/local/share/ca-certificates/ and ran sudo update-ca-certificates which seemed to update ca-certificates.crt in etc/ssl/certs/.

I ran a strace -o stracker.out curl -v https://url.com:443 and searched for the failing stat() as suggested in here by No-Bugs_Hare and found that curl was looking for 'c099e901.0' in /etc/ssl/certs/ and it isn't there. Googling that particular HEXID is no joy and am stuck at this step.

Next I tried strace -o traceOppenSSL.out openssl s_client -connect url.com:443 to see if I can get more detail but can't see what causes the

verify error:num=20:unable to get local issuer certificate

followed by two other errors (I'm sure all relating to the first one), then displays the "Server Certificate" within a BEGIN / END block, followed by a bunch of other metadata. The entire session ends with

Verify return code: 21 (unable to verify the first certificate).

So, this is not my forte and I'm doing what I can to try and get this VM operational. Like I said earlier, I've been trying many things and understand most of the issue is the fact that I'm behind a McAfee firewall within my corporate structure. I don't know how to troubleshoot more than what I've explained above but I'm willing to dig deeper.

I have a few questions. Why is curl looking for that particular hex ID and where would I find or generate the beast? Are there other troubleshooting steps I should try? The VM is a server-class Ubuntu install, so I only have a SSH CLI terminal and no WindowManager GUI to work with this.

Community
  • 1
  • 1

0 Answers0