HPUX 11.31 native multipathing

to see the lun path status, this give you the number of paths and if they are active/alive/dead:

scsimgr lun_map -D /dev/rdisk/diskXXX

swinstall strange errors - check your hosts file for correct IP

if you get any of the following weird errors doing sdux command, then make sure your hosts file has the correct IP address for the hostname.

swacl, swreg, swinstall 
ERROR:   There is no "depot" ACL at "XXXXXXXXXXX".  The object is, or is part of, a read-only depot.

ERROR:   Could not open remote depot/root

         "XXXXXXXXXXXXXXXX".  The remote daemon failed to

         create the remote agent process:  You do not have the proper

         permissions to perform the requested operation.  Generally,

         this either means the ACL protecting the software object does

         not grant you the permission required for this operation, or

         the software object is part of an unregistered depot.  Use

         "swacl -v" to list and/or edit the ACL, use "swlist -l depot"

         to list registered depots, and use "swreg -l depot" to

         register an unregistered one

ERROR:   Cannot open source.  Check above for errors, as well as the

         daemon logfile on the source host (default location:

         /var/adm/sw/swagentd.log

Verizon Mifi Diags page - force EVDO/3g mode only

to get to the diags page on a Verizon MiFi, open up VZAccess Manager,  do NOT connect.  do: control-D, enter password: diagvzw, hit settings and there you go.

samsung GSM A687 (Strive) factory reset -- in case you don't have password

dial this:  *2767*3855#   be careful - this erases everything, including the sim card and sd card, I think.

Garmin Nuvi Issue - "updating GPS Firmware"

Updating GPS Firmware  and  GPS Firmware update complete - if these messages show up on your Garmin Nuvi 260 (or other Garmin GPS devices) consistently when you turn it on, or while it's running, then you may have to delete the contents of the garmin\RemoteSW folder.  Just plug the gps into a PC using a usb cable and it should show up like a storage device/flash drive.  Go into the garmin\remotesw folder/directory and delete the contents.

see the following thread:
https://forums.garmin.com/showthread.php?t=3375

no powerpath and getting LUN ID

If you don't have powerpath and need to get the LUN ID to device special file (dsf)/ disk device on HP-UX, try using the following switch on the syminq command (part of Solutions Enabler):

syminq -identifier device_name

example:

syminq -identifier device_name | head

Device Device

------------------------- ----------------------- ----------------

Name Num Vendor Array ID Name

------------------------- ----------------------- ----------------

/dev/rdisk/disk428 09B8 EMC *redacted* N/A

/dev/rdisk/disk429 09B9 EMC *redacted* N/A

Actually I think the default syminq output (without any switches) shows the lun id, but it’s hidden in the “device” “serial Number” column. Skip the first 3 digits in the column (part of the array ID). The next 4 digits (or so) are the Lun ID.

Example (lun ID in bold):

Device Product Device

-------------------------- --------------------------- ---------------------

Name Type Vendor ID Rev Ser Num Cap (KB)

-------------------------- --------------------------- ---------------------

/dev/rdisk/disk437 EMC SYMMETRIX 5874 93009C1000 35692800

Symbolic links on HP CIFS/Samba 3.5.4

using symlinks on HP CIFS/Samba 3.5.4 can be an issue if the parameter unix extensions = yes (which is the default). Look up the man page for smb.conf for more info on it.

use the testparm -v command (-v = verbose), this will show ALL settings (built-in defaults) along with all the custom settings from your config file.

Since "unix extensions" only helps when using HP CIFS clients, IMO it should be disabled by default. so do this in the global section of smb.conf

unix extensions = no

dbprofile on Itanium servers (and 4.0+ HPVM)

at EFI shell:

display dbprofile:

dbprofile

add/update profile named "ignite" providing only one parameter: dhcp

dbprofile -dn ignite -dhcp

when modifying the profile, only the parameters that are changing need to be listed; you don't need to re-do the entire syntax

three ways that work: first two only work if the ignite server and client are in the same ethernet broadcast domain (subnet).

  - last option gives fast boot time, first and second options requires less administration.

1. dbprofile -dn ignite -dhcp

2. dbprofile -dn ignite -dhcp -b "/opt/ignite/boot/nbp.efi"

3. dbprofile -dn ignite -sip IGNITE.IP.ADDRESS -cip CLIENT.IP.ADDRESS -gip GATEWAY.IP.ADDRESS -m NETMASK -b "/opt/ignite/boot/nbp.efi"

example - ignite IP 192.168.1.2,  client IP 192.168.0.2, gateway/router IP 192.168.0.1, netmask 255.255.255.0

dbprofile -dn ignite -sip 192.168.1.2 -cip 192.168.0.2 -gip 192.168.0.1 -m 255.255.255.0 -b "/opt/ignite/boot/nbp.efi"

to actually use the dbprofile:

lanboot -dn ignite

or to pick a specific NIC to boot from: lanboot select -dn ignite

to find list of NICs, run:

lanaddress

sometimes on NPARS, not all NICs show up, so do the following to re-connect the EFI drivers:

reconnect -r

HPUX 11.31 lvm2

Wow LVM2 found in HPUX 11.31 has lifted a lot of burdensome limits on volume groups.  vgcreate automatically creates the  device group file; VGs are only limited by the MAX VG size you specify when creating the VG, using the -S option; hitting the max VG size is the only case where a backup/recreate/restore is needed.  Here's a list of helpful commands:

LVMP_CONF_PATH_NON_BOOT  found in /etc/lvmrc  (in March 2010 release)  allows lvm2 vg configuration file backups to an alternate location because of the large size of VG 2.X backups

lvmadm - (-t) displays limits of LVM1 and LVM2 VG 1.0 and VG 2.0 and up;  (-l) also lists the contents of /etc/lvmtab and lvmtab_p

lvmadm -l

--- Version 1.0 volume groups ---

VG Name /dev/vg00

PV Name /dev/disk/disk3_p2

        /dev/disk/disk2_p2

--- Version 2.1 volume groups ---

VG Name /dev/vgXX

PV Name /dev/disk/diskXXX

convert from legacy to persistent DSF: use vgdsf

/usr/contrib/bin/vgdsf –c vgXX

vgcreate using the new LVM2 VG2.0+ notation:

vgcreate -V 2.1 -s 16 -S 4t vgXXX /dev/disk/diskxxx /dev/disk/diskxxx

convert from VG1.0 to VG2.0+

The -r does a "review" to make sure the VG can be converted.

vgversion -V 2.1 -r vgXX

before the convert will run the VG has to be deactivated:

vgchange -a n vgXX

vgversion -V 2.1 vgXX

ioscan new options for persistent dsfs:

ioscan -m dsf /dev/disk/disk127

Persistent DSF           Legacy DSF(s)

========================================

/dev/disk/disk127        /dev/dsk/c5t5d0

                         /dev/dsk/c6t5d0

turn off modline support in vim

I can see a number of security issues with this feature turned on (on by default in Win versions)

http://blogs.techrepublic.com.com/security/?p=4476&tag=nl.e011

 

set modelines=0
set nomodeline

Tru64 bare metal recovery

not sure how accurate this is, but:

 

http://www.backupcentral.com/wiki/index.php/Tru64_Bare_Metal_Recovery

 

 

HPUX verses Solaris

An SA's comparison of HP-UX verses Solaris: 

http://www.loudermilk.org/software/solaris-hpux.html

 

I'm still biased to HPUX, although this guy makes some compelling arguments: DTrace, p*/process command tools, hardware (path) identification, log rotation, shadow file, patch numbering.  especially the Dtrace and /usr/proc/bin tools.

 

 

ssh without being prompted for password

if you have public keys on most of your boxes but not all and are
running a script against all of them, but don't want the script to
just pause at the password prompt, then specify the
"PreferredAuthentications" option:

ssh -o PreferredAuthentications=hostbased,publickey

I couldn't get the PasswordAuthentication=no option to work, so the
above saved me

making skype portable

To make skype run on a usb flash drive or some other portable device follow the following:

 

http://www.gruups.com/usbskype/

 

First...Download the NEWEST version of Skype (Older versions won't work) and install it on any computer as normal.

Find the Skype.exe from where it was installed.
(Usually C:\Program Files\Skype\Phone\Skype.exe )

Copy the Skype.exe file to any directory on your USB Drive

In that new directory create a directory called "data"

Now create a file (with notepad) called "skype.bat"

Edit the "skype.bat" file and place the following line there:
skype.exe /datapath:"Data" /removable

 

/tmp on Solaris 10

On Sun Solaris 10, /tmp is a tmpfs type file system.  It is supposed to make reads/writes to the temp filesystem fast, but there are some caveats:

 

http://www.softpanorama.org/Solaris/Processes_and_memory/swap_space_management.shtml

Swap Space and the TMPFS File System
The TMPFS file system is activated automatically in the Solaris environment by an entry in the /etc/vfstab file. The TMPFS file system stores files and their associated information in memory (in the /tmp directory) rather than on disk, which speeds access to those files. This results in a major performance enhancement for applications such as compilers and DBMS products that use /tmp heavily.

The TMPFS file system allocates space in the /tmp directory from the system's swap resources. This means that as you use up space in /tmp, you are also using up swap space. So if your applications use /tmp heavily and you do not monitor swap space usage, your system could run out of swap space.

Use the following if you want to use TMPFS but your swap resources are limited:

Mount the TMPFS file system with the size option (-o size) to control how much of the swap resources TMPFS can use.
If you are close to running out of swap space, you can use your compiler's TMPDIR environment variable to point to a larger, real directory.
Using your compiler's TMPDIR variable only controls whether the compiler is using /tmp or not. It has no effect on other programs' use of /tmp.

 

hyperlink formulas in excel

to add a hyperlink formula in excel:

=HYPERLINK("#sheetname!"&CELL("address",A999))

 

where 'sheetname' is the name of the worksheet and

'A999' is the the cell to link to

 

the pound sign, # is _Necessary_

 

 

allow control D keyboard sequence to work

the EOF key (generally control D) gets trapped/ignored by the shell on some systems.  Here's how to turn that off:

 

 

hit control-D
server$ Use 'exit' to logout

server$ set -o | grep ignoreeof
ignoreeof        on

server$ set +o ignoreeof

server$ set -o | grep ignoreeof
ignoreeof        off

server$ hit cntl-D
logout

automatically adding ssh keys to known hosts file

automatically adding host's ssh fingerprint to the known_hosts file:

-o StrictHostKeyChecking=no

 

example:

ssh -o StrictHostKeyChecking=no SecretServername

putty command sender

Putty Command Sender:  http://www.millardsoftware.com/puttycs

Sends keystrokes to putty windows.  Filters allow selection of putty sessions/windows to which the commands are sent.  You can exclude/include and use wildcards in the filter.  I don't think it supports regular expressions other than * and ?  Allows arrow keys, control characters, and a lot more.

Be real careful when using this, experiment first on lab systems.

how to add a bulk load of putty sessions

add bunch of putty sessions.  This requires cygwin base install which includes the sed command.  Be sure to add \cygwin\bin to the path:
create a "template" putty session with all the settings you want.  go into the registry and export the session: HKEY_CURRENT_USER\Software\SimonTatham\PuTTY\Sessions\session_name

put a list of machine names in test.txt

then in dos:

for /f %a in (test.txt) do type m.reg | sed -e 's/Template_NAME/%a/g'>> all.reg


These sessions can then be used in putty session manager or any of the other putty related tools.