Chapter 8. Publishing Certificates and CRLs
228
wget --no-check-certificate -d http
s
://server.example.com:
9444/ca/ee/ca
/crl/MasterCRL.bin
mv MasterCRL.bin MasterCRL.bin.full
dd if=MasterCRL.bin.full of=MasterCRL.bin count=200 bs=1
Then attempt to download the partial CRL using
wget -c
.
wget --no-check-certificate
-c
-d http
s
://server.example.com:
9444/ca/ee/ca
/crl/
MasterCRL.bin
8.3.2. Retrieving CRLs Using wget
Because CRLs can be published as a text file over HTTP, they can be manually retrieved from the CA
using a tool like
wget
.
wget
can be used to retrieve any type of published CRL:
• Full CRLs. For example:
wget --no-check-certificate -d http
s
://server.example.com:
9444/ca/ee/ca
/crl/MasterCRL.bin
• Delta CRLs. For example:
wget --no-check-certificate
-N
-d http
s
://server.example.com:
9444/ca/ee/ca
/crl/MasterCRL.bin
The relevant parameters for
wget
are summarized in
Table 8.4, “wget Options to Use for Retrieving
CRLs”
.
Argument
Description
no argument
Retrieves the full CRL.
-N
Retrieves the CRL that is newer than the local
copy (delta CRL).
-c
Retrieves a partially-downloaded file.
--no-check-certificate
Skips SSL for the connection, so it is not
necessary to configure SSL between the host
and client.
-d
Prints debug information.
Table 8.4. wget Options to Use for Retrieving CRLs
8.3.3. Retrieving Partial CRLs
Because CRLs can be so large, the publishing process can take a long time, which opens up the
possibilities of the publishing process being interrupted.
Section 8.3.1, “Configuring CRL Publishing to
Resume after Interrupted Downloads”
describes how to configure publishing so that the partial CRL
can be resumed after a publishing operation is interrupted.
To retrieve a partial CRL, run the
wget
command with
-c
option. This picks upm the CRL download at
the place it was terminated.
wget --no-check-certificate
-c
-d http
s
://server.example.com:
9444/ca/ee/ca
/crl/MasterCRL.bin
Summary of Contents for CERTIFICATE SYSTEM 8.0 - ADMINISTRATION
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Page 43: ...Part I Setting up Certificate Services ...
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Page 223: ...Part II Additional Configuration to Manage CA Services ...
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Page 293: ...Part III Managing the Subsystem Instances ...
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Page 439: ...Part IV References ...
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Page 503: ...Netscape Defined Certificate Extensions Reference 481 OID 2 16 840 1 113730 13 ...
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