Backup Master

Tuesday, April 5, 2011

Network management - HPUX

10:10 AM Posted by ChinniLax 1 Comments

Network management - HPUX

To display the network interface cards and status

# lanscan  Hardware Station        Crd  Hdw   Net-Interface    NM   MAC       HP-DLPI DLPI  Path     Address        In#  State NamePPA          ID   Type      Support Mjr#  0/0/0/0  0x00306E1CC281 0    UP    lan0 snap0       1    ETHER       Yes   119  1/12/0/0 0x00306E210F32 3    UP    lan3 snap3       2    ETHER       Yes   119

To configure the NIC cards such as speed, MTU, etc..

# lanadmin (it is a interactive tool)

To find out the speed of duplex setting of lan0

# lanadmin -x 0  Speed = 1000 Full-Duplex.  Autonegotiation = On.

To list all the configured interfaces and IP addresses

# netstat -in

To force HP-UX to use specific interface card

# traceroute -i lan2 10.20.30.40

HP-UX stores network interface configuration information on /etc/rc.config.d/netconf file

# cat /etc/rc.config.d/netconf  HOSTNAME="it-hp49"  OPERATING_SYSTEM=HP-UX  LOOPBACK_ADDRESS=127.0.0.1  INTERFACE_NAME[0]="lan0"  IP_ADDRESS[0]="216.131.195.137"  SUBNET_MASK[0]="0xffffff00"  BROADCAST_ADDRESS[0]="216.131.195.255"  INTERFACE_STATE[0]=""  DHCP_ENABLE[0]=0   ROUTE_DESTINATION[0]="default"  ROUTE_MASK[0]=""  ROUTE_GATEWAY[0]="216.131.195.10"  ROUTE_COUNT[0]="1"  ROUTE_ARGS[0]=""

To add a alias address to lan0, add the network information to /etc/rc.config.d/netconf file

INTERFACE_NAME[0]=lan0:1  IP_ADDRESS[0]=216.131.195.138  SUBNET_MASK[0]=255.255.255.0  BROADCAST_ADDRESS[0]=""  INTERFACE_STATE[0]=""  DHCP_ENABLE[0]=0  INTERFACE_MODULES[0]=""

Restart the network service

/sbin/init.d/net start

Network Tracing and Logging

The nettl command is a tool used to capture network events or packets.

Initialize the tracing/logging facility:

# nettl -start

Display the status of the tracing/logging facility.

# nettl -status all

nwmgr (Network Interface Management)

The nwmgr program is the unified command to administer all HP-UX LAN and RDMA interfaces. This command can be used to:

Display information of an interface
Modify settings of an interface
Reset the interface or its statistics
Diagnose link connectivity
Create and set configuration information for a component simultaneously
Delete or erase components

# nwmgr   Name/          Interface Station          Sub-   Interface      Related ClassInstance  State     Address        system   Type           Interface ============== ========= ============== ======== ============== ========= lan2           DOWN      0x001A4B096828 iether   1000Base-T lan0           UP        0x001A4B097F9A iether   1000Base-T lan1           DOWN      0x001A4B097F9B iether   1000Base-T

# nwmgr --help -S all  # lists all the subsystems  # nwmgr --help -S subsystem # display subsystem specific usage

To View Interface attributes

# nwmgr  -A all -c lan0 lan0 current values:    Link State = Up    Speed = 1 Gbps Full Duplex (Autonegotiation : On)    MTU = 1500    MAC Address = 0x001a4b097f9a    Receive Flow Control = On    Transmit Checksum Offload = Off    Receive Checksum Offload = Off    Virtual MTU = 0       TCP Segmentation Offload is now disabled.    Max Send Buffers = 1    Max Send Coalesce Ticks = 150    Max Recv Buffers = 1    Max Recv Coalesce Ticks = 0    Interrupt Throttle Mode = -1    Diagnostics Threshold = 0    512byte transmit buffer size limit = 0

To get interface statistics for interface lan0

# nwmgr --st all -c lan0

To View interface details

# nwmgr -q info -c lan0

To get interface vital product data

# nwmgr -q vpd -c lan0

To set interface attributes

# nwmgr -s -A attr1-value, attr2=value ... -c lan0

Reset statistics for an interface

# nwmgr -r --st -c lan

Some nwmgr Syntax and their Equivalent lanadmin and linkloop Syntax are given bellow

nwmgr -S vlan

lanadmin -V scan nwmgr -c lan5000

lanadmin -V info 5000 nwmgr -a -S vlan -A vlanid=10, ppa=1

lanadmin -V create vlanid 10 1 nwmgr -s -c lan5000 -A vlanid=20

lanadmin -V modify vlanid 20 5000 nwmgr -d -c lan5000

lanadmin -V delete 5000 nwmgr --cra -c lan5000

lanadmin -p 5000 nwmgr --diag -c lan5000 -A dest=0xaabbccddeeff linkloop -i 5000 0xaabbccddeeff

Thursday, March 31, 2011

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11:03 AM Posted by ChinniLax No Comments

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Tuesday, March 8, 2011

HP-UX Overview and Command Summary - page 12

12:08 PM Posted by ChinniLax No Comments

Users Administration

Creating Users

sam --> user and group accounts
useradd -g users -d Username

Creating Groups
sam --> user and group accounts
groupadd Groupname

Useful Commands

Command	Description
or \	autocompletion
file *	Show file types, such as "ascii".
find -name -print	Finds a file in the OS at the starting path on down
grep
groups	Shows groups for a user
kmtune	Displays kernel tunable parameters
listusers -g	Lists the users in a group
ln -s	Creates a symbolic link to a file or a directory
pr -o10 -l64 -F -h \| lp	prints using margins of 10, page length of 64, header on each page
rcp remote_machine:	remote copy
remsh	opens a remote command shell on the host machine
rlogin	remote login to host machine
sar
set_parms	Change host name (/etc/set_parms)
tail -f	Looks at end of file and keeps it open to watch changes
top	realtime display of processes
uname -a	information about the system
print $(uname -i)16op\|dc	prints hex system id
who -u, who -Rm	who is using the system

Process to recover from a lost/forgotten root password

1. Power off the server

2. Power on the server

3. Interupt the boot process during the 10 second interval (display will indicate this on the screen)

4. bo pri

5. Answer yes to interact with the ipl

6. At the prompt "hpux -is" for single user mode

7. cd /sbin

8. passwd root and follow prompts to put in new password

9. shutdown -r 0 to reboot to multiuser mode

Find HP-UX Overview and Command Summary All pages

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HP-UX Overview and Command Summary - page 11

12:03 PM Posted by ChinniLax No Comments

Starting an X-Window application from telnet

start an X-Window server on the PC, such as exceed
export DISPLAY=W.X.Y.Z:0.0 <---W.X.Y.Z is the IP Address of the PC
/opt/ignite/bin/ignite <---Now just run the program

Configuring an HP 700/96 Terminal for a server connection:

Terminal Ports

Port 1

Datacommunications
25 Pin - use this to connect to the N class server with a 25 pin to 9 pin cable

Port 2 - used to connect to an external peripheral

Parallel
25 Pin

Port 3

Datacommunications
9 Pin - use this port to connect to the A class server with a 9 pin to 25 pin cable

Terminal Configuration Settings

Press User/System function key

modes

Remote Mode must have an asterisk in it's box (indicating it is selected)

config keys

datacomm config

baud rate 9600
parity: none/8
xon/xoff

terminal config

serial (2)/parallel(1) - 25 pin console port
serial (1)/parallel(1) - 9 pin console port
Term ID - vt100
Term Mode - em100

ansi config

em100
backspace/del

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HP-UX Overview and Command Summary - page 10

12:02 PM Posted by ChinniLax No Comments

Command Script to print useful information to a file called info
echo "sel path system; info; wait; infolog
>view
>done
>"lcstm>info
#cat info

print_manifest (located in /var/opt/ignite/local/manifest/manifestinfo ??)

Command Script to print useful information
cstm
cstm>Map
cstm>SelAll
cstm>Information
cstm>Infolog
cstm>exit

Command Script to print useful information (not sure this is complete/correct)
cstm
cstm>SelClass type "Disk" qualifier "All"
cstm>info;wait
cstm>il
cstm>create /tmp/disk.stm
cstm>done
cstm>quit
cstm>ok

cstm -f /tmp/disk.stm

Terminal Environment

TERM - environmental variable indicating type of terminal
stty
termio

/usr/share/lib/terminfo

setup string for xterm: /usr/bin/X11 -ls -d @D

$DISPLAY=192.168.70.80:0.0

$TERM = xterm

stty
stty -all

Running Exceed --> xstart

Rightl Click --> Huge

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HP-UX Overview and Command Summary - page 9

11:59 AM Posted by ChinniLax No Comments

Changing the Server Name and the IP Address

Using set_parms --> may not work correctly for multiple nics

set_parms hostname ( a reboot is required for the change to take effect)

It will prompt you for the new hostname
It will prompt you to reboot (answer no if you are also changing the ip address)

set_parms ip_address ( a reboot is required for the change to take effect)

It will prompt you for the new ip address
It will prompt you to reboot

Manually makiing the change:

vi /etc/hosts
vi /etc/rc.config.d/netconf <-- ** Make sure that no extra files are in the /etc/rc.config.d directory - it gets sourced on bootup
reboot

Other files that may need to checked/changed

/etc/resolv.conf
/etc/nsswitch.conf

System Tuning

Extract Current System File

cd /stand/build
/usr/lbin/sysadm/system_prep -s /stand/build/system

file is called system
section called "Tunable Parameters"

kmtune - displays the tunable parameters
kmtune -l <-- This displays a detailed report of the parameters (current, planned, default, minimum, etc)
sam allows you to tune the kernel
Manual Kernel Build (not using sam) --> /usr/sbin/mk_kernel -s /stand /build/system

STM

diaglogd

/var/opt/resmon/log

Procedure to use STM to determine memory configuration

Type stm at the command line
Type o to select ok
Press the down arrow in the displayed map and select memory by hitting the space bar
Press tab to go to menus and arrow over to Tools and hit enter
Select Information -> and hit enter
Select Information Log and hit enter
Information Tool Log for Memory will be displayed
To print either select Print or SaveAs (to save the log to file for later printing)