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Chapter 11. Cloning open source virtual servers 195
11.3.7 Configuring printing
Configuring printing is beyond the scope of this book. For more details about printing, refer to
Printing with Linux on zSeriesPrinting with Linux on zSeries Using CUPS and Samba,
REDP-3864.
11.4 Creating a virtual application development server
Most Linux distributions come with a basic set of application development tools, making Linux
one of the most versatile development systems. These basic tools are ideal for projects of
any size.
The development languages used in implementation range from scripting languages, such as
Python or Tcl, to compiled languages, such as C/C++ and Java™. There are software
available on Linux to help form a development system for developers to create integrated
applications. MySQL and Apache are among them. A popular open source web platform is
LAMP, which stands for the open source software and programming languages used to make
up the platform: Linux, Apache, MySQL, and Python or PHP.
To create a virtual application development server, perform the following steps:
1. Start an SSH session as root to the cloner.
2. Copy a Linux cloning configuration file and modify the IP address and host name
variables:
# cd /etc/clone
# cp linux01.conf linux04.conf
# vi linux04.conf
// ... modify IPADDR and HOSTNAME variables
3. Clone a basic virtual server. In this example, the LINUX03 user ID is used.
# clone -v rh6gold linux03
Invoking CP command: QUERY rh6gold
Invoking CP command: QUERY linux03
This will copy disks from rh6gold to linux03
Host name will be: 6.endicott.ibm.com
IP address will be: 9.60.18.224
Do you want to continue? (y/n): y
...
4. When the new system comes up, start an SSH session as root to it.
5. Before installing the development tools, note how full the root and /usr/ file systems are:
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/dasda1 504M 147M 332M 31% /
tmpfs 121M 0 121M 0% /dev/shm
/dev/mapper/system_vg-opt_lv
372M 17M 337M 5% /opt
/dev/mapper/system_vg-tmp_lv
372M 17M 337M 5% /tmp
/dev/mapper/system_vg-usr_lv
1.5G 798M 638M 56% /usr
/dev/mapper/system_vg-var_lv
- Enterprise Linux 6.0 1
- February 2011 3
- First Edition (February 2011) 4
- Contents 5
- Contents v 7
- Contents vii 9
- Trademarks 12
- Chapters and appendixes 13
- Conventions 14
- The team who wrote this book 15
- Special thanks 15
- Comments welcome 16
- Preface xv 17
- Summary of changes 19
- 1.1 What is virtualization 23
- 1.4 Infrastructure design 24
- Planning 27
- 2.1 Bill of materials 28
- 2.2 z/VM conventions 29
- Real address 30
- LPAR identifier 30
- 2.3 Disk planning 31
- 2.4 Memory planning 32
- 2.5 Password planning 32
- 2.6 Planning worksheets 33
- 2.7 Blank worksheets 36
- 2.7.2 z/VM DASD worksheet 37
- Configuring a desktop machine 39
- Figure 3-2 Setting logging 41
- Saving sessions 43
- 3.2 Setting up a VNC client 44
- 3.3 3270 emulators 45
- Figure 4-3 Recovery menu 51
- Running INSTDVD 57
- Figure 4-11 Load window 58
- 4.2 Configuring TCP/IP 61
- 4.6 Adding paging volumes 70
- Using the CPFORMAT EXEC 72
- 4.6.4 Testing the changes 76
- 4.8.2 Testing the changes 83
- 4.9.1 VM security products 84
- clipping the volumes 90
- Servicing z/VM 93
- Chapter 5. Servicing z/VM 75 95
- Chapter 5. Servicing z/VM 77 97
- Chapter 5. Servicing z/VM 79 99
- S9338801 in this example): 100
- Chapter 5. Servicing z/VM 81 101
- Chapter 5. Servicing z/VM 85 105
- Chapter 5. Servicing z/VM 87 107
- 5.4 Applying a PTF 108
- Chapter 5. Servicing z/VM 89 109
- Chapter 5. Servicing z/VM 91 111
- Chapter 5. Servicing z/VM 93 113
- Chapter 5. Servicing z/VM 95 115
- Configuring an NFS/FTP server 117
- 6.4 Enabling the NFS server 120
- 7.1 Installing the cloner 126
- Figure 7-2 NFS setup panel 135
- 7.2 Configuring the cloner 147
- 7.2.8 Configuring SSH keys 153
- 7.2.12 Rebooting the system 155
- 7.2.13 Verifying the changes 155
- Figure 8-4 166
- 8.2.7 Configuring SSH keys 172
- 8.2.10 Rebooting the system 173
- 8.2.11 Verifying the changes 173
- Detaching the source disks 180
- 9.4.3 Using the clone script 185
- 9.6 Reviewing system status 193
- 11.1.2 Testing Apache 202
- 11.1.3 Turning on a firewall 203
- 11.1.6 Apache resources 205
- 11.2.3 Adding an LDAP user 207
- 11.3.4 Adding a Samba user 212
- 11.3.6 Testing your changes 213
- 11.3.7 Configuring printing 215
- 11.4.1 Additional resources 217
- Servicing Linux with Red Hat 219
- Miscellaneous tasks 223
- 13.1 Adding DASD 224
- 13.2 Adding a logical volume 226
- Volume Group - homevg 227
- 13.4 Adding SCSI/FCP disks 233
- 4014402600000000. Change the 235
- 13.5 Rescuing a Linux system 239
- 13.9 The X Window System 251
- Using PuTTY 254
- Using embedded SSH 256
- INIDICATE LOAD 260
- INDICATE QUEUES EXP 261
- Getting help 262
- Determining who is logged on 262
- Determining storage or memory 263
- Determining processors 263
- 14.2.3 Configuring PERFSVM 266
- Using a web browser interface 270
- Using a 3270 interface 272
- 14.3 Monitoring Linux 274
- References 277
- Cheat sheets 278
- A vi cheat sheet 279
- Additional material 281
- Related publications 283
- Online resources 284
- Help from IBM 285
- Hat Enterprise Linux 6.0 293
- Back cover 296
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