Web Server Management: Securing Access to Web Servers. Jon Warbrick University of Cambridge Computing Service
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1 Web Server Management: Securing Access to Web Servers Jon Warbrick University of Cambridge Computing Service
2 Introduction Course Outline
3 Introduction Course Outline What is HTTPS?
4 Introduction Course Outline What is HTTPS?
5 Introduction Course Outline What is HTTPS?
6 What does HTTPS give you? Client server, end to end encrypted traffic
7 What does HTTPS give you? Client server, end to end encrypted traffic Message Integrity
8 What does HTTPS give you? Client server, end to end encrypted traffic Message Integrity Authentication of the server
9 What does HTTPS give you? Client server, end to end encrypted traffic Message Integrity Authentication of the server (optional) Authentication of the browser user
10 A warning about security "Security is a process, not a product"
11 A warning about security "Security is a process, not a product" TLS protects data in transmission
12 A warning about security "Security is a process, not a product" TLS protects data in transmission What happens after it's received?
13 A warning about security "Security is a process, not a product" TLS protects data in transmission What happens after it's received?.. or before it's sent?
14 A warning about security "Security is a process, not a product" TLS protects data in transmission What happens after it's received?.. or before it's sent? Is the webserver secure from attack?
15 A warning about security "Security is a process, not a product" TLS protects data in transmission What happens after it's received?.. or before it's sent? Is the webserver secure from attack? Is the webserver physically secure?
16 A warning about security "Security is a process, not a product" TLS protects data in transmission What happens after it's received?.. or before it's sent? Is the webserver secure from attack? Is the webserver physically secure? Legal requirements (DPA, RIPA)
17 Politics Patents
18 Politics Patents Munitions
19 A Crash Course in Cryptography
20 A Crash Course in Cryptography Symmetric ciphers
21 A Crash Course in Cryptography Symmetric ciphers
22 A Crash Course in Cryptography (2) Public key ciphers
23 A Crash Course in Cryptography (2) Public key ciphers
24 A Crash Course in Cryptography (3) Key Exchange
25 A Crash Course in Cryptography (3) Key Exchange
26 A Crash Course in Cryptography (4) Message digests
27 A Crash Course in Cryptography (5) Digital signatures
28 A Crash Course in Cryptography (5) Digital signatures
29 A Crash Course in Cryptography (5) Digital signatures
30 A Crash Course in Cryptography (5) Digital signatures
31 A Crash Course in Cryptography (5) Digital signatures
32 A Crash Course in Cryptography (6) Public key certificates
33 A Crash Course in Cryptography (6) Public key certificates Certification authorities
34 A Crash Course in Cryptography (6) Public key certificates Certification authorities UCS Certificate scheme
35 A Crash Course in Cryptography (6) Public key certificates Certification authorities UCS Certificate scheme PKI
36 The SSL Process Browser contacts server
37 The SSL Process Browser contacts server Client & server agree ciphers, protocols, etc.
38 The SSL Process Browser contacts server Client & server agree ciphers, protocols, etc. Server sends its certificate to the client
39 The SSL Process Browser contacts server Client & server agree ciphers, protocols, etc. Server sends its certificate to the client Client verifies the server's certificate
40 The SSL Process Browser contacts server Client & server agree ciphers, protocols, etc. Server sends its certificate to the client Client verifies the server's certificate Client sends a secret using server's public key
41 The SSL Process (2) Client & server create symmetric keys
42 The SSL Process (2) Client & server create symmetric keys Client & server switch to the agreed cipher
43 The SSL Process (2) Client & server create symmetric keys Client & server switch to the agreed cipher Sequence numbers and hashes protect against tampering
44 The downside of using HTTPS No caching of documents
45 The downside of using HTTPS No caching of documents Overheads on client and server
46 The downside of using HTTPS No caching of documents Overheads on client and server Firewalls may not allow HTTPS traffic
47 The downside of using HTTPS No caching of documents Overheads on client and server Firewalls may not allow HTTPS traffic Cost
48 The downside of using HTTPS No caching of documents Overheads on client and server Firewalls may not allow HTTPS traffic Cost Search Engines
49 Creating Keys and Certificates
50 OpenSSL Used by most Unix and some Windows systems
51 OpenSSL Used by most Unix and some Windows systems Cryptographic library
52 OpenSSL Used by most Unix and some Windows systems Cryptographic library Command line utilities
53 OpenSSL Used by most Unix and some Windows systems Cryptographic library Command line utilities Pre built packages for RedHat, Fedora, SuSE, Debian, Solaris. Windows executables can be found
54 OpenSSL Used by most Unix and some Windows systems Cryptographic library Command line utilities Pre built packages for RedHat, Fedora, SuSE, Debian, Solaris. Windows executables can be found... or build your own
55 OpenSSL Used by most Unix and some Windows systems Cryptographic library Command line utilities Pre built packages for RedHat, Fedora, SuSE, Debian, Solaris. Windows executables can be found... or build your own Command line arguments confusing
56 Configuring Apache
57 Getting or building SSL Apache Apache V.1 with mod_ssl (or Apache SSL)
58 Getting or building SSL Apache Apache V.1 with mod_ssl (or Apache SSL) Apache V.2
59 Getting or building SSL Apache Apache V.1 with mod_ssl (or Apache SSL) Apache V.2 RedHat/Debian/Fedora/SuSE have pre built packages
60 Getting or building SSL Apache Apache V.1 with mod_ssl (or Apache SSL) Apache V.2 RedHat/Debian/Fedora/SuSE have pre built packages Pre compiled Windows available
61 Getting or building SSL Apache Apache V.1 with mod_ssl (or Apache SSL) Apache V.2 RedHat/Debian/Fedora/SuSE have pre built packages Pre compiled Windows available... or build your own
62 Other Issues Additional Directives
63 Other Issues Additional Directives Proxying HTTPS
64 Other Issues Additional Directives Proxying HTTPS Extended Validation
65 Other Issues Additional Directives Proxying HTTPS Extended Validation
66 Other Issues Additional Directives Proxying HTTPS Extended Validation Server Gated Cryptography
67 Further Material uxsup.csx.cam.ac.uk/~jw35/ courses/using_https/ web
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