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228 z/VM and Linux on IBM System z: The Virtualization Cookbook for Red Hat Enterprise Linux 6.0
To test copy a file with and without cryptographic acceleration, perform the following steps:
1. Start an SSH session to a Linux.
2. Create a 200 MB test file for copying in the /tmp/ directory:
# cd /tmp
# dd if=/dev/zero of=testdata.txt bs=1048576 count=200
200+0 records in
200+0 records out
209715200 bytes (210 MB) copied, 17.87 s, 11.7 MB/s
# ls -lh testdata.txt
-rw-r--r--. 1 root root 200M Oct 9 14:51 testdata.txt
3. Copy the file locally with the scp command, two times with specific encryption algorithms
and once without, prefixing them all with the time command:
# time scp -c 3des-cbc /tmp/testdata.txt localhost:/dev/null
The authenticity of host 'localhost (::1)' can't be established.
RSA key fingerprint is 41:77:58:10:50:09:ba:2a:6a:7b:8b:56:95:1a:37:79.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'localhost' (RSA) to the list of known hosts.
root@localhost's password:
testdata.txt 100% 200MB 4.6MB/s 00:44
real 0m51.295s
user 0m17.797s
sys 0m1.047s
# time scp -c aes128-cbc /tmp/testdata.txt localhost:/dev/null
root@localhost's password:
testdata.txt 100% 200MB 28.6MB/s 00:07
real 0m10.780s
user 0m1.212s
sys 0m0.698s
[root@gpok225 ssl]# time scp /tmp/testdata.txt localhost:/dev/null
root@localhost's password:
testdata.txt 100% 200MB 16.7MB/s 00:12
real 0m15.977s
user 0m3.072s
sys 0m0.753s
The output shows throughputs of about 4.6, 28.6, and 16.7 MBps and a user times of
about 17.7, 1.2, and 3.0 seconds.
4. Determine if the necessary cryptographic-related RPMs are installed:
# rpm -qa | grep openssl-ibmca
No output shows that they are not installed.
5. Install the RPM by using the yum install command:
# yum -y install openssl-ibmca openssl-ibmca.s390
...
Installed:
openssl-ibmca.s390 0:1.1-3.el6 openssl-ibmca.s390x 0:1.1-3.el6
Dependency Installed:
glibc.s390 0:2.12-1.7.el6 keyutils-libs.s390 0:1.4-1.el6
krb5-libs.s390 0:1.8.2-3.el6 libcom_err.s390 0:1.41.12-3.el6
- 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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