VMware VS4-ENT-PL-A Setup Guide - Page 205

Auto Deploy Security Considerations, Troubleshooting Auto Deploy

Page 205 highlights

Chapter 7 Installing ESXi Auto Deploy Security Considerations Understanding potential security risks helps you set up your environment in a secure manner. Secure your network as you would for any other PXE-based deployment method. Auto Deploy transfers data over SSL to prevent casual interference and snooping. However, the authenticity of the client or of the Auto Deploy server is not checked during a PXE boot. The boot image that the Auto Deploy server downloads to a machine can have the following components. n The VIB packages that the image profile consists of are always included in the boot image. n The host profile and host customization are included in the boot image if Auto Deploy rules are set up to provision the host with a host profile or a host customization setting. n The administrator (root) password and user passwords that are included with host profile and host customization are MD5 encrypted. n Any other passwords associated with profiles are in the clear. If you set up Active Directory by using host profiles, the passwords are not protected. Use the vSphere Authentication Service for setting up Active Directory to avoid exposing the Active Directory passwords. n The host's public and private SSL key and certificate are included in the boot image. You can greatly reduce the security risk of Auto Deploy by completely isolating the network where Auto Deploy is used. Troubleshooting Auto Deploy The Auto Deploy troubleshooting topics offer solutions for situations when provisioning hosts with Auto Deploy does not work as expected. Auto Deploy TFTP Timeout Error at Boot Time A TFTP Timeout error message appears when a host provisioned by Auto Deploy boots. The text of the message depends on the BIOS. Problem A TFTP Timeout error message appears when a host provisioned by Auto Deploy boots. The text of the message depends on the BIOS. Cause The TFTP server is down or unreachable. Solution u Ensure that your TFTP service is running and reachable by the host that you are trying to boot. Auto Deploy Host Boots with Wrong Configuration A host is booting with a different ESXi image, host profile, or folder location than the one specified in the rules. Problem A host is booting with a different ESXi image profile or configuration than the image profile or configuration that the rules specify. For example, you change the rules to assign a different image profile, but the host still uses the old image profile. VMware, Inc. 205

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
  • 186
  • 187
  • 188
  • 189
  • 190
  • 191
  • 192
  • 193
  • 194
  • 195
  • 196
  • 197
  • 198
  • 199
  • 200
  • 201
  • 202
  • 203
  • 204
  • 205
  • 206
  • 207
  • 208
  • 209
  • 210
  • 211
  • 212
  • 213
  • 214
  • 215
  • 216
  • 217
  • 218
  • 219
  • 220
  • 221
  • 222
  • 223
  • 224
  • 225
  • 226
  • 227
  • 228
  • 229
  • 230
  • 231
  • 232
  • 233
  • 234
  • 235
  • 236
  • 237
  • 238
  • 239
  • 240
  • 241
  • 242
  • 243
  • 244
  • 245
  • 246
  • 247
  • 248
  • 249
  • 250
  • 251
  • 252
  • 253
  • 254
  • 255
  • 256
  • 257
  • 258
  • 259
  • 260
  • 261
  • 262
  • 263
  • 264
  • 265
  • 266
  • 267
  • 268
  • 269
  • 270
  • 271
  • 272
  • 273
  • 274
  • 275
  • 276

Auto Deploy Security Considerations
Understanding potential security risks helps you set up your environment in a secure manner.
Secure your network as you would for any other PXE-based deployment method. Auto Deploy transfers
data over SSL to prevent casual interference and snooping. However, the authenticity of the client or of the
Auto Deploy server is not checked during a PXE boot.
The boot image that the Auto Deploy server downloads to a machine can have the following components.
n
The VIB packages that the image profile consists of are always included in the boot image.
n
The host profile and host customization are included in the boot image if Auto Deploy rules are set up
to provision the host with a host profile or a host customization setting.
n
The administrator (root) password and user passwords that are included with host profile and host
customization are MD5 encrypted.
n
Any other passwords associated with profiles are in the clear. If you set up Active Directory by
using host profiles, the passwords are not protected.
Use the vSphere Authentication Service for setting up Active Directory to avoid exposing the
Active Directory passwords.
n
The host's public and private SSL key and certificate are included in the boot image.
You can greatly reduce the security risk of Auto Deploy by completely isolating the network where Auto
Deploy is used.
Troubleshooting Auto Deploy
The Auto Deploy troubleshooting topics offer solutions for situations when provisioning hosts with Auto
Deploy does not work as expected.
Auto Deploy TFTP Timeout Error at Boot Time
A TFTP Timeout error message appears when a host provisioned by Auto Deploy boots. The text of the
message depends on the BIOS.
Problem
A TFTP Timeout error message appears when a host provisioned by Auto Deploy boots. The text of the
message depends on the BIOS.
Cause
The TFTP server is down or unreachable.
Solution
u
Ensure that your TFTP service is running and reachable by the host that you are trying to boot.
Auto Deploy Host Boots with Wrong Configuration
A host is booting with a different ESXi image, host profile, or folder location than the one specified in the
rules.
Problem
A host is booting with a different ESXi image profile or configuration than the image profile or
configuration that the rules specify. For example, you change the rules to assign a different image profile,
but the host still uses the old image profile.
Chapter 7 Installing ESXi
VMware, Inc.
205