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Monday, August 25, 2008. Using linux as a serial console. Pstubbs@burpless ]$ sudo cat /proc/tty/driver/serial. Serinfo:1.0 driver revision:. 0: uart:16550A port:000003F8 irq:4 tx:0 rx:0 CTS DSR CD. 1: uart:unknown port:000002F8 irq:3. 2: uart:unknown port:000003E8 irq:4. 3: uart:unknown port:000002E8 irq:3. Pstubbs@burpless ]$ cat /dev/ttyS0. Cat: /dev/ttyS0: Permission denied. Pstubbs@burpless ]$ sudo cat /dev/ttyS0. Pstubbs@burpless ]$ sudo cu -l ttyS0 -9600. Friday, July 11, 2008. For rdev in $(symin...

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Monday, August 25, 2008. Using linux as a serial console. Pstubbs@burpless ]$ sudo cat /proc/tty/driver/serial. Serinfo:1.0 driver revision:. 0: uart:16550A port:000003F8 irq:4 tx:0 rx:0 CTS DSR CD. 1: uart:unknown port:000002F8 irq:3. 2: uart:unknown port:000003E8 irq:4. 3: uart:unknown port:000002E8 irq:3. Pstubbs@burpless ]$ cat /dev/ttyS0. Cat: /dev/ttyS0: Permission denied. Pstubbs@burpless ]$ sudo cat /dev/ttyS0. Pstubbs@burpless ]$ sudo cu -l ttyS0 -9600. Friday, July 11, 2008. For rdev in $(symin...

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Monday, August 25, 2008. Using linux as a serial console. Pstubbs@burpless ]$ sudo cat /proc/tty/driver/serial. Serinfo:1.0 driver revision:. 0: uart:16550A port:000003F8 irq:4 tx:0 rx:0 CTS DSR CD. 1: uart:unknown port:000002F8 irq:3. 2: uart:unknown port:000003E8 irq:4. 3: uart:unknown port:000002E8 irq:3. Pstubbs@burpless ]$ cat /dev/ttyS0. Cat: /dev/ttyS0: Permission denied. Pstubbs@burpless ]$ sudo cat /dev/ttyS0. Pstubbs@burpless ]$ sudo cu -l ttyS0 -9600. Friday, July 11, 2008. For rdev in $(symin...

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ps258.blogspot.com

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Technotes: xauth, su and sudo with ssh X tunneling

http://ps258.blogspot.com/2006/09/xauth-su-and-sudo-with-ssh-x-tunneling.html

Thursday, September 21, 2006. Xauth, su and sudo with ssh X tunneling. Some xauth notes to su from root but keep the same ssh tunnel for X11. Save the MIT-MAGIC-COOKIE for the current X display to a file (/tmp/xauth.out). Xauth extract /tmp/xauth.out $DISPLAY. Save the DISPLAY variable to a file (remember env is lost). Make sure the su'd id can read the files. Chmod 666 /tmp/xauth.out /tmp/DISPLAY. Setup a new XAUTHORITY file. Load the MIT-MAGIC-COOKIE for root's display. Xauth merge /tmp/xauth.out.

2

Technotes: HP/UX kernel building

http://ps258.blogspot.com/2006/09/hpux-kernel-building.html

Thursday, September 21, 2006. Kernel building on UX 10.x. Create a new system file from the running kernel. Usr/lbin/sysadm/system prep -s /stand/build/system. Edit the kernel with the planned changes. Build the new kernel. Usr/sbin/mk kernel -s /stand/build/system. Copy the old system and vmunix files so if anything goes wrong, the system can be booted from the old kernel. Cp /stand/system /stand/system.prev. Cp /stand/vmunix /stand/vmunix.prev. Mv /stand/build/vmunix test /stand/vmunix.

3

Technotes: How to sleep until an hour has elapsed.

http://ps258.blogspot.com/2008/07/how-to-sleep-until-hour-has-elapsed.html

Friday, July 11, 2008. How to sleep until an hour has elapsed. Let say you want to run a script and then run another one an hour after the current one. In the first script. Save the current time. Awk 'BEGIN { srand(); printf("%d n", srand() 3610)}' /tmp/start time. In the second script. Sleep until the rest of the hour has passed. ONE HOUR LATER=$(cat /tmp/lstart time). SLEEP TIME=$(awk -v ohl=$ONE HOUR LATER 'BEGIN { srand(); printf("%d n", ohl-srand() }'). Subscribe to: Post Comments (Atom).

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Technotes

http://ps258.blogspot.com/2006/09/when-system-is-running-in-trusted-mode.html

Thursday, September 21, 2006. When a system is running in trusted mode, even the root account can be locked out to network access. To unlock it simply log in as root on the console. If not run. To take a system out of trusted mode run sam. And to re-trust it sam. And enter trusted mode. The option to 'untrust' a system is in the action menu on most of the applets in the sam area 'Auditing and Security'. Subscribe to: Post Comments (Atom).

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Technotes: Using linux as a serial console

http://ps258.blogspot.com/2008/08/using-linux-as-serial-console.html

Monday, August 25, 2008. Using linux as a serial console. Pstubbs@burpless ]$ sudo cat /proc/tty/driver/serial. Serinfo:1.0 driver revision:. 0: uart:16550A port:000003F8 irq:4 tx:0 rx:0 CTS DSR CD. 1: uart:unknown port:000002F8 irq:3. 2: uart:unknown port:000003E8 irq:4. 3: uart:unknown port:000002E8 irq:3. Pstubbs@burpless ]$ cat /dev/ttyS0. Cat: /dev/ttyS0: Permission denied. Pstubbs@burpless ]$ sudo cat /dev/ttyS0. Pstubbs@burpless ]$ sudo cu -l ttyS0 -9600. Subscribe to: Post Comments (Atom).

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HPUX Notes

Wednesday, 20 August 2008. Which npar am I on? SD32npar:/ # parstatus -w. The local partition number is 1. What's the 'domes serial number? SD32npar:/ # parstatus -X. Complex Name : Complex 1. Compute Cabinet (8 cell capable) : 1. IO Expansion Cabinet : 1. Active MP Location : cabinet 0. Original Serial Number : DEHXXXXJX. Current Product Order Number : A5201A. Original Manufacturer : HP. Complex Profile Revision : 1.0. The total number of partitions present : 2. 5/0/6/1/0/6/0 0x00110A428C82 2 DOWN.

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Solaris Notes

Wednesday, 17 September 2008. I'm not sure what versions of Veritas this applies to. It might be all or only older ones. Contains some settings that veritas uses. There's a sample. Contains a mapping from the sym identification of a disk to the Veritas EBN. It's used whe the. Option is used in. It's format is like this. FUJITSU%5FMAT3147F%20SUN146G%5FDISKS%5F500000E0112EF5F0 c0t0d0 0x3b40000 0x1 c0t0d0 Disk DISKS. I suspect that if. Is allowed to get out of date it can cause systems to have. Disk connect...

ps258.blogspot.com

Technotes

Monday, August 25, 2008. Using linux as a serial console. Pstubbs@burpless ]$ sudo cat /proc/tty/driver/serial. Serinfo:1.0 driver revision:. 0: uart:16550A port:000003F8 irq:4 tx:0 rx:0 CTS DSR CD. 1: uart:unknown port:000002F8 irq:3. 2: uart:unknown port:000003E8 irq:4. 3: uart:unknown port:000002E8 irq:3. Pstubbs@burpless ]$ cat /dev/ttyS0. Cat: /dev/ttyS0: Permission denied. Pstubbs@burpless ]$ sudo cat /dev/ttyS0. Pstubbs@burpless ]$ sudo cu -l ttyS0 -9600. Friday, July 11, 2008. For rdev in $(symin...

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