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4
CHAPTER 4
Flash Media Server Security
Macromedia Flash Media Server 2 will typically be used in a network environment where
many users will have access to it; by changing its configuration, you can make the server
accessible from within a private network, from the public Internet, or both. When deploying
any server technology, you should consider the implications to both the security of your
internal network and the accessibility of the server’s host computer.
Flash Media Server incorporates security features that take these kinds of concerns into
account. As a server administrator, you can provide additional security. This chapter describes
the security features built into Flash Media Server as well as additional measures you can take
to protect your server.
Additional information about server security can be found in the Macromedia Flash Media
Server Support Center at www.macromedia.com/go/flashmediaserver_support_en.
Managing server security
Flash Media Server uses a high-speed TCP/IP protocol called Real-Time Messaging Protocol
(RTMP), which is binary and unencrypted. RTMP is sufficient for many media applications,
such as those that run within your organization’s intranet. For applications that handle critical
or sensitive data, use the secure RTMPS protocol, which encrypts all data, including audio
and video. For more information about using RTMPS in applications, see Access DLL.
Because the RTMP protocol is unencrypted, you must carefully consider the security of your
server configuration and the sensitivity of the data you send to and from the server.
The default settings of Flash Media Server at installation provide sufficient security. As a
server administrator, you can enhance the level of security by modifying the default settings in
the configuration files. The following section identifies those configuration tags that reinforce
security in Flash Media Server.
- Managing Flash Media Server 1
- Contents 3
- 4Contents 4
- Contents 5 5
- 6Contents 6
- About This Manual 7
- System requirements 8
- About the Flash Media Server 8
- Typographical conventions 9
- Additional resources 9
- 10 About This Manual 10
- Managing the Server 11
- 12 Managing the Server 12
- Configuring virtual hosts 13
- To start or stop the server: 14
- To start the server on Linux: 15
- To stop the server on Linux: 15
- Using the management console 16
- ■ View application logs 17
- 18 Managing the Server 18
- Managing applications 19
- 20 Managing the Server 20
- Managing applications 21 21
- 22 Managing the Server 22
- Viewing active clients 23
- Viewing active shared objects 24
- Viewing active streams 25
- 26 Managing the Server 26
- Managing the servers 28
- Managing servers 29
- Viewing server details 30
- Viewing connection details 31
- Viewing application details 32
- Viewing license files 33
- Viewing the server log file 34
- Access log file 35
- Application log file 39
- Diagnostic log file 40
- Category Description 41
- Message ID Description 42
- Configuring logging 52
- Logger.xml file example 53
- 54 Managing the Server 54
- 56 Managing the Server 56
- Using the fmsmgr utility 58
- Command Description 59
- Deploying Flash Media 61
- Deploying on one computer 62
- Deploying on two computers 62
- Defining a secure port 63
- Configuring SSL 64
- About configuration levels 66
- About configuration levels 67 67
- About configuration levels 69 69
- ■ A Vhost.xml file 70
- ■ An Application.xml file 70
- About configuration levels 71 71
- Field name Description 73
- Using the admin commands 74
- Command Required 75
- Optional 75
- Sample URL 75
- Symbolic text substitutions 79
- Predefined symbols 80
- Mapping environment variables 81
- Building the symbol map 82
- Configuration Files 85
- Server.xml file 86
- XML configuration files 87 87
- 88 Configuration Files 88
- Summary of Server.xml tags 89
- Server.xml tag Description 90
- XML configuration files 95 95
- AdminServer 96
- AllowZones 96
- ApplicationGC 97
- AutoDiscovery 97
- BindInfo 98
- BroadcastAddress 98
- BroadcastPort 98
- ClusterMonitorInterval 99
- Connector 99
- CoreTimeout 100
- CoreExitDelay 100
- CPUMonitor 100
- Diagnostic 100
- XML configuration files 101 101
- Enable (Application) 102
- EdgeCore 102
- Enable (Access) 102
- Enable (AutoDiscovery) 103
- Enable (Diagnostic) 103
- FLVCacheSize 103
- FreeMemRatio 103
- FreeRatio 104
- GlobalQueue 104
- GlobalRatio 105
- HeapSize 105
- HostPort 105
- IPCQueues 106
- LargeMemPool 106
- LocalHost 107
- MaxCacheSize 108
- MaxCacheUnits 109
- MaxConnectionQueueSize 109
- MaxConnectionThreads 109
- MaxIOThreads 110
- MaxQueueSize 110
- MaxUnitSize 111
- MaxWaitTime 111
- MessageCache 111
- MinConnectionThreads 111
- MinIOThreads 112
- MsgPoolGC 112
- NumCRThreads 113
- Protocol 114
- ProxyInfo 115
- ResourceLimits 115
- RTMP (Connector) 116
- RTMP (Protocol) 116
- SecureProxyInfo 117
- SegmentsPool 117
- ServerDomain 118
- Services 118
- SmallMemPool 118
- SocketGC 119
- SocketOverflowBuckets 119
- SocketTableSize 119
- SSLCACertificateFile 120
- SSLCACertificatePath 120
- SSLCipherSuite 121
- Examples 122
- XML configuration files 123 123
- Digest Types Description 124
- SSLClientCtx 125
- SSLRandomSeed 125
- SSLSessionCacheGC 126
- SSLVerifyCertificate 126
- SSLVerifyDepth 127
- ThreadPoolGC 127
- UpdateInterval 128
- UserData 128
- Users.xml file 129
- Summary of Users.xml tags 129
- Description of Users.xml tags 130
- Allow (Users) 131
- Deny (HTTPCommands) 131
- Deny (User) 132
- HTTPCommands 133
- Order (HTTPCommands) 133
- Order (User) 133
- Password 134
- Logger.xml file 135
- Summary of Logger.xml tags 136
- Container tag 137
- Application 138
- Delimiter 138
- Directory 139
- DisplayFieldsHeader 139
- EscapeFields 139
- Description 140
- Event Category Description 140
- Field Status Code Description 140
- See also 141
- Field Event(s) Description 143
- FileName 145
- LogServer 146
- QuoteFields 146
- Rotation 147
- Schedule 147
- ServerID 147
- Adaptor.xml file 148
- Summary of Adaptor. xml tags 149
- Adaptor.xml tag Description 150
- HostPortList 154
- HTTPIdent 154
- HTTPTunnel 155
- HttpUserInfo 155
- IdleAckInterval 156
- IdlePostInterval 156
- MaxFailures 157
- MaxWriteDelay 157
- MimeType 158
- NeedClose 158
- RecoveryTime 159
- Redirect 159
- SetCookie 160
- SSLCACertificateKeyFile 161
- SSLPassPhrase 162
- SSLServerCtx 163
- SSLSessionTimeout 163
- WriteBufferSize 163
- Vhost.xml file 164
- XML configuration files 165 165
- Summary of Vhost.xml tags 166
- Vhost.xml tag Description 167
- Description of Vhost.xml tags 168
- AliasList 169
- Anonymous 170
- AppInstanceGC 171
- CacheDir 171
- DNSSuffix 172
- LocalAddress 174
- MaxAppInstances 174
- MaxConnections 175
- MaxSharedObjects 175
- MaxStreams 175
- RouteEntry 177
- RouteTable 179
- Contained tags 181
- Additional information 182
- VirtualDirectory 183
- VirtualHost 184
- Application.xml file 185
- Overriding default settings 186
- XML configuration files 187 187
- Contained tag 192
- AllowHTTPTunnel 193
- AutoCommit 194
- Bandwidth 194
- BandwidthCap 194
- CachePrefix 195
- CacheUpdateInterval 196
- ClientToServer (Bandwidth) 197
- ClientToServer (BandwidthCap) 197
- CombineSamples 198
- Connections 198
- DuplicateDir (StreamsManager) 199
- Duration 199
- EnhancedSeek 199
- FileObject 200
- FolderAccess 200
- Interface 203
- Interval 203
- JSEngine 203
- KeyFrameInterval 204
- LifeTime 204
- LoadOnStartup 204
- LockTimeout 205
- MaxAppIdleTime 205
- MaxCores 206
- MaxMessagesizeLosslessvideo 206
- MaxSamples 206
- MaxTimeOut (Connections) 206
- MaxTimeOut (JSEngine) 207
- NotifyAudioStop 208
- ResyncDepth 210
- RollOver 210
- RuntimeSize 210
- ScriptLibPath 211
- SendSilence 212
- ServerToClient (Bandwidth) 212
- ServerToClient (BandwidthCap) 212
- SharedObjManager 213
- StorageDir (SharedObjManager) 213
- StorageDir (StreamManager) 213
- StreamManager 214
- Subscribers 214
- UnrestrictedAuth 215
- UserAgent 215
- Username 215
- WriteBuffSize 216
- Flash Media Server Security 217
- ■ Server.xml file 218
- ■ Users.xml file 218
- ■ Adaptor.xml file 218
- ■ Vhost.xml file 218
- Managing server security 219 219
- JavaScript security 221
- Secure script loading 222
- Protecting objects 223
- Permissions levels 224
- Asynchronous system calls 225
- Choosing passwords 226
- Access DLL 226
- Configuring Access DLL 227
- Access DLL APIs 228
- Modifying Access DLL 229
- Sample Adaptor.cpp file 230
- Using SSL 231
- About privacy 233
- Log file precautions 234
- 236 Index 236
- Index 237 237
- 238 Index 238
- Index 239 239
- 240 Index 240
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