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two windows loader in grub

- by Lorenzo

i'm facing a strange problem about which - googling- i didn't find any solution. This is the issue. I've restored windows 7 trught its hidden partition then i installed kubuntu 12.04 which didn't installed the grub loader. Hence via the same usb-live i used boot-repair which have found all the system that are: kubuntu + its recovery mode windows 7 /dev/sda1 windows 7 /dev/sda2 windows 7 recovery I don't know why i have got 2 windows loader, but they seem (to me) to load the same system. I tryied to see what is there written in the grub.cfg and it seems that the "root" directory for the two system is different eventhought when i load from sda1 i got "Avvio windows" (italian laguange that i choosed) and on sda2 i got "start windows" in the english language when the splash screen load. Can you PLEASE help me removing one of the two entry? i can not really see them, i want only one but i don't know how to act.. Thank you very much indeed. Lorenzo

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Where I can find the USSD commands specification?

- by Lorenzo Melato

I need to implement a simple application to send short notify messages on gsm phone display via a GSM modem. I know that I can use the gsm USSD protocol to send messages instead of sms in order to speed up the delivery. Where I can find a detailed reference on the available USSD messages? Where I can find examples or sample applications? All mobile operators supports the USSD protocol? Lorenzo

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I can't even login, black screen! [SOLVED]

- by Elisa Velasco Lorenzo

I wanted to fix something, and I followed the advice given by someone on the #ubuntu IRC chat. I don't think I did it properly, because now, I cannot even login and I have a black screen. Ii must be a Gdm / Lightdm issue... I am writing this from another computer. Is there a way I can solve this without formatting and losing all my files? All I have is the GRUB menu. I don't even have the recovery mode on the GRUB menu...

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Problem after upgrading to 14.04: Unable to mount - Not authorized

- by Elisa Velasco Lorenzo

This is the first time I ever post on this forum. I have used Ubuntu for 7 years, and every time I've had a problem, I have browsed the web and I have been able to solve it thanks to the help given on forums to other users experiencing the same issues (I do not have technical knowledge on Ubuntu). This time, I've spent hours reading forums and typing commands and nothing helps. I am exhausted. Upgrading to 14.04 has proved itself a mistake. Many things won't work anymore. But the one which worries me right now is external media not automounting anymore. I know other people have had the same issue and I have carefully read their threads, but nothing helps!!

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On automating a split-mirror ASM backup with EMC TimeFinder ...

- by [email protected]

Normal 0 21 false false false MicrosoftInternetExplorer4 st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Hi clerks, Offloading the backup operation to another host using disk cloning could really improve the performance on highly busy databases ( 24x7, zero downtime and all this stuff ...) There are well know white papers on this subject, ASM included, but today Im showing you a nice way to automate the procedure using shell scripting with EMC TimeFinder technologies: Assumptions: *********** ASM diskgroups name: +data_${db_name} : asm data diskgroup +fra_${db_name} : asm fra diskgroup EMC Time Finder sync groups name: rac_${DB_NAME}_data_tf : data group rac_${DB_NAME}_fra_tf: fra group There are two scripts, one located on the production box ( bck_database.sh ) and the other one on the backup server node ( bck_database_mirror.sh ) The second one is remotly executed from the production host There are a bunch of variables along the code with selfexplanatory names I guess, anyway let me know if you want some help #!/bin/ksh ### ### Copyright (c) 1988, 2010, Oracle Corporation. All Rights Reserved. ### ### NAME ### bck_database.sh ### ### DESCRIPTION ### Database backup on third mirror ### ### RETURNS ### ### NOTES ### ### MODIFIED (DD/MM/YY) ### Oracle 28/01/10 - Creacion ### V_DATE=`/bin/date +%Y%m%d_%H%M%S` V_FICH_LOG=`dirname $0`/trace_dir_location/`basename $0`.${V_DATE}.log exec 4>&1 tee ${V_FICH_LOG} >&4 |& exec 1>&p 2>&1 ADMIN_DIR=`dirname $0` . ${ADMIN_DIR}/setenv_instance.sh -- This script should set the instance vars like Oracle Home, Sid, db_name ... if [ $? -ne 0 ] then echo "Error when setting the environment." exit 1 fi echo "${V_DATE} ####################################################" echo "Executing database backup: ${DB_NAME}" echo "####################################################################" V_DATE=`/bin/date +%Y%m%d_%H%M%S` echo "${V_DATE} ####################################################" echo "Sync asm data diskgroups ..." echo "####################################################################" sudo symmir -g rac_${DB_NAME}_data_tf establish -noprompt if [ $? -ne 0 ] then echo "Error when sync asm data diskgroups" exit 2 fi V_DATE=`/bin/date +%Y%m%d_%H%M%S` echo "${V_DATE} ####################################################" echo "Verifying asm data disks ..." echo "####################################################################" sudo symmir -g rac_${DB_NAME}_data_tf -i 30 verify if [ $? -ne 0 ] then echo "Error when verifying asm data diskgroups" exit 3 fi V_DATE=`/bin/date +%Y%m%d_%H%M%S` echo "${V_DATE} ####################################################" echo "Sync asm fra diskgroups ..." echo "####################################################################" sudo symmir -g rac_${DB_NAME}_fra_tf establish -noprompt if [ $? -ne 0 ] then echo "Error when sync asm fra diskgroups" exit 4 fi V_DATE=`/bin/date +%Y%m%d_%H%M%S` echo "${V_DATE} ####################################################" echo "Verifying asm fra disks ..." echo "####################################################################" sudo symmir -g rac_${DB_NAME}_fra_tf -i 30 verify if [ $? -ne 0 ] then echo "Error when verifying asm fra diskgroups" exit 5 fi V_DATE=`/bin/date +%Y%m%d_%H%M%S` echo "${V_DATE} ####################################################" echo "ASM sync sucessfully completed!" echo "####################################################################" V_DATE=`/bin/date +%Y%m%d_%H%M%S` echo "${V_DATE} ####################################################" echo "Updating status ${DB_NAME} to BEGIN BACKUP ..." echo "####################################################################" sqlplus -s /nolog <<-! whenever sqlerror exit 1 connect / as sysdba whenever sqlerror exit alter system archive log current; alter database ${DB_NAME} begin backup; ! if [ $? -ne 0 ] then echo "Error when updating database status to BEGIN backup" exit 6 fi V_DATE=`/bin/date +%Y%m%d_%H%M%S` echo "${V_DATE} ####################################################" echo "Splitting asm data disks....." echo "####################################################################" sudo symmir -g rac_${DB_NAME}_data_tf split -noprompt if [ $? -ne 0 ] then echo "Error when splitting asm data disks" exit 7 fi V_DATE=`/bin/date +%Y%m%d_%H%M%S` echo "${V_DATE} ####################################################" echo "Updating status ${DB_NAME} to END BACKUP ..." echo "####################################################################" sqlplus -s /nolog <<-! whenever sqlerror exit 1 connect / as sysdba whenever sqlerror exit alter database ${DB_NAME} end backup; alter system archive log current; ! if [ $? -ne 0 ] then echo "Error when updating database status to END backup" exit 8 fi V_DATE=`/bin/date +%Y%m%d_%H%M%S` echo "${V_DATE} ####################################################" echo "Generating controlfile copies...." echo "####################################################################" rman<<-! connect target / run { allocate channel ch1 type DISK; copy current controlfile to '+FRA_${DB_NAME}/${DB_NAME}/CONTROLFILE/control_mount.ctl'; copy current controlfile to '+FRA_${DB_NAME}/${DB_NAME}/CONTROLFILE/control_backup.ctl'; } ! if [ $? -ne 0 ] then echo "Error generating controlfile copies" exit 9 fi V_DATE=`/bin/date +%Y%m%d_%H%M%S` echo "${V_DATE} ####################################################" echo "Resync RMAN catalog ....." echo "####################################################################" rman<<-! connect target / connect catalog ${V_RMAN_USR}/${V_RMAN_PWD}@${V_DB_CATALOG} resync catalog; ! if [ $? -ne 0 ] then echo "Error when resyncing RMAN catalog" exit 10 fi V_DATE=`/bin/date +%Y%m%d_%H%M%S` echo "${V_DATE} ####################################################" echo "Splitting asm fra disks....." echo "####################################################################" sudo symmir -g rac_${DB_NAME}_fra_tf split -noprompt if [ $? -ne 0 ] then echo "Error when splitting asm fra disks" exit 11 fi echo "WARNING!: Calling bck_database_mirror.sh host ${NODE_BCK_SERVER}..." ssh ${NODO_BCK_SERVER} ${ADMIN_DIR_BCK}/bck_database_mirror.sh if [ $? -ne 0 ] then echo "Error, when remote executing the backup " exit 12 fi V_DATE=`/bin/date +%Y%m%d_%H%M%S` echo "${V_DATE} ####################################################" echo "Cleaning the archived redo logs already copied to tape ..." echo "####################################################################" rman<<-! connect target / connect catalog ${V_RMAN_USR}/${V_RMAN_PWD}@${V_DB_CATALOG} run { resync catalog; delete noprompt archivelog all backed up 1 times to device type sbt; } ! if [ $? -ne 0 ] then echo "Error when cleaning the archived redo logs" exit 13 fi echo "${V_DATE} ####################################################" echo "Backup sucessfully executed!!" echo "####################################################################" exit 0 ------------------------------------------------------------------------------ ------------------------** BACKUP SERVER NODE ** ----------------------------- ------------------------------------------------------------------------------ #!/bin/ksh ### ### Copyright (c) 1988, 2010, Oracle Corporation. All Rights Reserved. ### ### ### NAME ### bck_database_mirror.sh ### ### DESCRIPTION ### Backup @ backup server ### ### RETURNS ### ### NOTES ### ### MODIFIED (DD/MM/YY) ### Oracle 28/01/10 - Creacion V_DATE=`/bin/date +%Y%m%d_%H%M%S` echo "${V_DATE} ####################################################" echo "Starting ASM instance ..." echo "####################################################################" ${V_ADMIN_DIR}/start_asm.sh -- This script is supposed to start the ASM instance in the backup server if [ $? -ne 0 ] then echo "Error when tying to start ASM instance." exit 1 fi . ${V_ADMIN_DIR}/setenv_asm.sh -- This script is supposed to set the env. variables of the ASM instance if [ $? -ne 0 ] then echo "Error when setting the ASM environment" exit 1 fi V_DATE=`/bin/date +%Y%m%d_%H%M%S` echo "${V_DATE} ####################################################" echo "The asm diskgroups/disks dettected are the following ..." echo "####################################################################" sqlplus /nolog <<-! whenever sqlerror exit 1 connect / as sysdba whenever sqlerror exit SET LINES 200 COL PATH FORMAT A25 SELECT DISK.MOUNT_STATUS, DISK.PATH, DISK.NAME, DISK_GROUP.NAME, DISK_GROUP.TOTAL_MB FROM V\$ASM_DISK DISK, V\$ASM_DISKGROUP DISK_GROUP WHERE DISK.GROUP_NUMBER=DISK_GROUP.GROUP_NUMBER; ! V_ADMIN_DIR=`dirname $0` . ${V_ADMIN_DIR}/setenv_instance.sh -- This script is supposed to set the env. variables of the database instance if [ $? -ne 0 ] then echo "Error when setting the database instance environment" exit 1 fi V_DATE=`/bin/date +%Y%m%d_%H%M%S` echo "${V_DATE} ####################################################" echo "Starting ${DB_NAME} in MOUNT mode..." echo "####################################################################" ${V_ADMIN_DIR}/start_instance_mount.sh -- This script is supposed to do a startup mount if [ $? -ne 0 ] then echo "Error starting ${DB_NAME} in MOUNT mode" exit 1 fi V_DATE=`/bin/date +%Y%m%d_%H%M%S` echo "${V_DATE} ####################################################" echo "Executing RMAN backup..." echo "####################################################################" rman<<-! connect target / connect catalog ${V_RMAN_USR}/${V_RMAN_PWD}@${V_DB_CATALOG} run { allocate channel ch1 type 'SBT_TAPE' parms'ENV=(TDPO_OPTFILE=/opt/tivoli/tsm/client/oracle/bin64/tdpo.opt)'; -- TDPO Media Library crosscheck archivelog all; backup tag BCK_CONTROLFILE_ST_${DB_NAME} format 'ctl_%d_%s__%p_%t' controlfilecopy '+FRA_${DB_NAME}/${DB_NAME}/CONTROLFILE/control_backup.ctl'; backup tag BCK_DATAFILE_ST_${DB_NAME} full format 'db_%d_%s_%p_%t'database; backup tag BCK_ARCHLOG_ST_${DB_NAME} format 'al_%d_%s_%p_%t' archivelog all; release channel ch1; } ! if [ $? -ne 0 ] then echo "Error executing the RMAN backup" exit 1 fi ${V_ADMIN_DIR}/stop_instance_immediate.sh -- This script is supposed to do a shutdown immediate of the database instance ${ADMIN_DIR}/stop_asm_immediate.sh -- This script is supposed to do a shutdown immediate of the ASM instance exit 0 fi Hope it helps someone! --L

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On configuring GC 10.2.0.5 to monitor LISTENER SCAN using UDMs ...

- by [email protected]

Hi,Looks like Grid Control 10.2.0.5 is not fully prepared for monitoringthe Grid Infrastructure (11gR2).Even I'm pretty sure the upcoming version of GC (11g) will of course support all the new features of 11gR2, some customersare asking for some "hand-made" procedures for monitoring all the new stuff.I think one of the most critical components that cant be monitored are the LISTENER SCAN, so I have developed a little script for doing sousing the GC User Defined Metrics ( at host level )I am more than happy to share with you:#!/bin/ksh ### NAME### monitor_scan.sh###### DESCRIPTION### SCAN Listener monitoring###### RETURNS###### NOTES###### MODIFIED (DD/MM/YY)### Oracle 25/03/10 - Creation###export ORACLE_HOME=/opt/oracle/soft/11.2/gridRSC_KEY=$1AWK=/sbin/awk LISTENER_DOWN_COUNT=$(${ORACLE_HOME}/bin/crsctl status resource -w 'TYPE = ora.scan_listener.type' | grep OFFLINE | wc -l)if [ ${LISTENER_DOWN_COUNT} != 0 ]; then SCAN_DOWN_LIST=$(${ORACLE_HOME}/bin/crsctl status resource -w 'TYPE = ora.scan_listener.type' | $AWK \ 'BEGIN { FS="="; state = 0; } $1~/NAME/ && $2~/'$RSC_KEY'/ {appname = $2; state=1}; state == 0 {next;} $1~/TARGET/ && state == 1 {apptarget = $2; state=2;} $1~/STATE/ && state == 2 {appstate = $2; state=3;} state == 3 {printf "%-45s %-10s %-18s\n", appname, apptarget, appstate; state=0;}' | grep OFFLINE | awk '{ print $1 }') echo em_result=ALERT echo em_message=There are LISTENER SCAN with down status: [${SCAN_DOWN_LIST}]else echo em_result=NORMAL echo em_message=All SCAN Listener are UPfiHope it helpsL

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On checking kernel parms HP-UX & Oracle 10.2

- by [email protected]

Hi,Just did this little script for a customer wanting to investigate if the kernel parameters of their HP-UX machines fits or not the Oracle 10.2 specifications ( looks like someone checked the "User Verified" at database installation time on some prerequisites)Just want to share ( its in Spanish)Hope it helps!--L Normal 0 21 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} ### ### check_kernel_parms.sh ### ### ### ### NAME ### check_kernel_parms.sh ### ### DESCRIPTION ### Comprueba los parametros de kernel ### ### NOTES ### Valido para versiones de SO HP-UX y Oracle 10.2 ### ### ### MODIFIED (MM/DD/YY) ### lvelasco 05/20/10 - Creacion V_DATE=`/usr/bin/date +%Y%m%d_%H%M%S` if [ "${1}" != 'sin_traza' ]; then V_FICHERO_LOG=`dirname $0`/`basename $0`.${V_DATE}.log exec 4>&1 tee ${V_FICHERO_LOG} >&4 |& exec 1>&p 2>&1 fi echo "${V_DATE}- check_params.sh *******************************************" echo "Comenzado ejecucion de chequeo de parametros de kernel en maquina `hostname`" echo "****************************************************************************" UX_VERS=`uname -a | awk '{print $3}'` KCTUNE=/usr/sbin/kctune MEM_TOTAL_MB=`./check_mem` <-- This should return the physical mem of the machine on bytes MEM_TOTAL=$((MEM_TOTAL_MB*1024)) NPROC=$(${KCTUNE} | grep nproc | grep -v '(nproc' | grep -v *nproc | awk '{print $2}') if [ ${NPROC} -lt 4096 ] then echo "[FAILED] Information: El parametro nproc con valor actual ${NPROC} debe tener una valor superior a 4096" else echo "[OK] Information: El parametro nproc con valor actual ${NPROC} debe tener una valor superior a 4096" fi KSI_ALLOC_MAX_T=$(${KCTUNE} | grep ksi_alloc | awk '{print $2}') KSI_ALLOC_MAX=$((NPROC*8)) if [ ${KSI_ALLOC_MAX_T} -lt ${KSI_ALLOC_MAX} ] then echo "[FAILED] Information: El parametro ksi_alloc_max con valor actual ${KSI_ALLOC_MAX_T} debe tener una valor superior a ${KSI_ALLOC_MAX}" else echo "[OK] Information: El parametro ksi_alloc_max con valor actual ${KSI_ALLOC_MAX_T} debe tener una valor superior a ${KSI_ALLOC_MAX}" fi EXECUTABLE_STACK=$(${KCTUNE} | grep executable_stack | awk '{print $2}') if [ ${EXECUTABLE_STACK} -ne 0 ] then echo "[FAILED] Information: El parametro executable_stack con valor actual ${EXECUTABLE_STACK} debe tener una valor igual a 0" else echo "[OK] Information: El parametro executable_stack con valor actual ${EXECUTABLE_STACK} debe tener una valor igual a 0" fi MAX_THREAD_PROC=$(${KCTUNE} | grep max_thread_proc | awk '{print $2}') if [ ${MAX_THREAD_PROC} -lt 1024 ] then echo "[FAILED] Information: El parametro max_thread_proc con valor actual ${MAX_THREAD_PROC} debe tener una valor superior a 1024" else echo "[OK] Information: El parametro max_thread_proc con valor actual ${MAX_THREAD_PROC} debe tener una valor superior a 1024" fi MAXDSIZ=$(${KCTUNE} | grep 'maxdsiz ' | awk '{print $2}') if [ ${MAXDSIZ} -lt 1073741824 ] then echo "[FAILED] Information: El parametro maxdsiz con valor actual ${MAXDSIZ} debe tener una valor superior a 1073741824" else echo "[OK] Information: El parametro maxdsiz con valor actual ${MAXDSIZ} debe tener una valor superior a 1073741824" fi MAXDSIZ_64BIT=$(${KCTUNE} | grep maxdsiz_64bit | awk '{print $2}') if [ ${MAXDSIZ} -lt 2147483648 ] then echo "[FAILED] Information: El parametro maxdsiz_64bit con valor actual ${MAXDSIZ_64BIT} debe tener una valor superior a 2147483648" else echo "[OK] Information: El parametro maxdsiz_64bit con valor actual ${MAXDSIZ_64BIT} debe tener una valor superior a 2147483648" fi MAXSSIZ=$(${KCTUNE} | grep 'maxssiz ' | awk '{print $2}') if [ ${MAXSSIZ} -lt 134217728 ] then echo "[FAILED] Information: El parametro maxssiz con valor actual ${MAXSSIZ} debe tener una valor superior a 134217728" else echo "[OK] Information: El parametro maxssiz con valor actual ${MAXSSIZ} debe tener una valor superior a 134217728" fi MAXSSIZ_64BIT=$(${KCTUNE} | grep maxssiz_64bit | awk '{print $2}') if [ ${MAXSSIZ} -lt 1073741824 ] then echo "[FAILED] Information: El parametro maxssiz_64bit con valor actual ${MAXSSIZ} debe tener una valor superior a 1073741824" else echo "[OK] Information: El parametro maxssiz_64bit con valor actual ${MAXSSIZ} debe tener una valor superior a 1073741824" fi MAXUPRC_T=$(${KCTUNE} | grep maxuprc | awk '{print $2}') MAXUPRC=$(((NPROC*9)/10)) if [ ${MAXUPRC_T} -lt ${MAXUPRC} ] then echo "[FAILED] Information: El parametro maxuprc con valor actual ${MAXUPRC_T} debe tener una valor superior a ${MAXUPRC}" else echo "[OK] Information: El parametro maxuprc con valor actual ${MAXUPRC_T} debe tener una valor superior a ${MAXUPRC}" fi MSGMNI=$(${KCTUNE} | grep msgmni | awk '{print $2}') if [ ${MSGMNI} -lt ${NPROC} ] then echo "[FAILED] Information: El parametro msgni con valor actual ${MSGMNI} debe tener una valor superior a ${NPROC}" else echo "[OK] Information: El parametro msgni con valor actual ${MSGMNI} debe tener una valor superior a ${NPROC}" fi if [ ${UX_VERS} = "B.11.23" ] then MSGSEG=$(${KCTUNE} | grep msgseg | awk '{print $2}') if [ ${MSGSEG} -lt 32767 ] then echo "[FAILED] Information: El parametro msgseg con valor actual ${MSGSEG} debe tener una valor superior a 32767" else echo "[OK] Information: El parametro msgseg con valor actual ${MSGSEG} debe tener una valor superior a 32767" fi fi MSGTQL=$(${KCTUNE} | grep msgtql | awk '{print $2}') if [ ${MSGTQL} -lt ${NPROC} ] then echo "[FAILED] Information: El parametro msgtql con valor actual ${MSGTQL} debe tener una valor superior a ${NPROC}" else echo "[OK] Information: El parametro msgtql con valor actual ${MSGTQL} debe tener una valor superior a ${NPROC}" fi if [ ${UX_VERS} = "B.11.23" ] then NFILE_T=$(${KCTUNE} | grep nfile | awk '{print $2}') NFILE=$((15*NPROC+2048)) if [ ${NFILE_T} -lt ${NFILE} ] then echo "[FAILED] Information: El parametro nfile con valor actual ${NFILE_T} debe tener una valor superior a ${NFILE}" else echo "[OK] Information: El parametro nfile con valor actual ${NFILE_T} debe tener una valor superior a ${NFILE}" fi fi NFLOCKS=$(${KCTUNE} | grep nflocks | awk '{print $2}') if [ ${NFLOCKS} -lt ${NPROC} ] then echo "[FAILED] Information: El parametro nflocks con valor actual ${NFLOCKS} debe tener una valor superior a ${NPROC}" else echo "[OK] Information: El parametro nflocks con valor actual ${NFLOCKS} debe tener una valor superior a ${NPROC}" fi NINODE_T=$(${KCTUNE} | grep ninode | grep -v vx | awk '{print $2}') NINODE=$((8*NPROC+2048)) if [ ${NINODE_T} -lt ${NINODE} ] then echo "[FAILED] Information: El parametro ninode con valor actual ${NINODE_T} debe tener una valor superior a ${NINODE}" else echo "[OK] Information: El parametro ninode con valor actual ${NINODE_T} debe tener una valor superior a ${NINODE}" fi NCSIZE_T=$(${KCTUNE} | grep ncsize | awk '{print $2}') NCSIZE=$((NINODE+1024)) if [ ${NCSIZE_T} -lt ${NCSIZE} ] then echo "[FAILED] Information: El parametro ncsize con valor actual ${NCSIZE_T} debe tener una valor superior a ${NCSIZE}" else echo "[OK] Information: El parametro ncsize con valor actual ${NCSIZE_T} debe tener una valor superior a ${NCSIZE}" fi if [ ${UX_VERS} = "B.11.23" ] then MSGMAP_T=$(${KCTUNE} | grep msgmap | awk '{print $2}') MSGMAP=$((MSGTQL+2)) if [ ${MSGMAP_T} -lt ${MSGMAP} ] then echo "[FAILED] Information: El parametro msgmap con valor actual ${MSGMAP_T} debe tener una valor superior a ${MSGMAP}" else echo "[OK] Information: El parametro msgmap con valor actual ${MSGMAP_T} debe tener una valor superior a ${MSGMAP}" fi fi NKTHREAD_T=$(${KCTUNE} | grep nkthread | awk '{print $2}') NKTHREAD=$((((NPROC*7)/4)+16)) if [ ${NKTHREAD_T} -lt ${NKTHREAD} ] then echo "[FAILED] Information: El parametro nkthread con valor actual ${NKTHREAD_T} debe tener una valor superior a ${NKTHREAD}" else echo "[OK] Information: El parametro nkthread con valor actual ${NKTHREAD_T} debe tener una valor superior a ${NKTHREAD}" fi SEMMNI=$(${KCTUNE} | grep semmni | grep -v '(semm' | awk '{print $2}') if [ ${SEMMNI} -lt ${NPROC} ] then echo "[FAILED] Information: El parametro semmni con valor actual ${SEMMNI} debe tener una valor superior a ${NPROC}" else echo "[OK] Information: El parametro semmni con valor actual ${SEMMNI} debe tener una valor superior a ${NPROC}" fi SEMMNS_T=$(${KCTUNE} | grep semmns | awk '{print $2}') SEMMNS=$((SEMMNI+2)) if [ ${SEMMNS_T} -lt ${SEMMNI} ] then echo "[FAILED] Information: El parametro semmns con valor actual ${SEMMNS_T} debe tener una valor superior a ${SEMMNS}" else echo "[OK] Information: El parametro semmns con valor actual ${SEMMNS_T} debe tener una valor superior a ${SEMMNS}" fi SEMMNU_T=$(${KCTUNE} | grep semmnu | awk '{print $2}') SEMMNU=$((NPROC-4)) if [ ${SEMMNU_T} -lt ${SEMMNU} ] then echo "[FAILED] Information: El parametro semmnu con valor actual ${SEMMNU_T} debe tener una valor superior a ${SEMMNU}" else echo "[OK] Information: El parametro semmnu con valor actual ${SEMMNU_T} debe tener una valor superior a ${SEMMNU}" fi if [ ${UX_VERS} = "B.11.23" ] then SEMVMX=$(${KCTUNE} | grep msgseg | awk '{print $2}') if [ ${SEMVMX} -lt 32767 ] then echo "[FAILED] Information: El parametro semvmx con valor actual ${SEMVMX} debe tener una valor superior a 32767" else echo "[OK] Information: El parametro semvmx con valor actual ${SEMVMX} debe tener una valor superior a 32767" fi fi SHMMNI=$(${KCTUNE} | grep shmmni | awk '{print $2}') if [ ${SHMMNI} -lt 512 ] then echo "[FAILED] Information: El parametro shmmni con valor actual ${SHMMNI} debe tener una valor superior a 512" else echo "[OK] Information: El parametro shmmni con valor actual ${SHMMNI} debe tener una valor superior a 512" fi SHMSEG=$(${KCTUNE} | grep shmseg | awk '{print $2}') if [ ${SHMSEG} -lt 120 ] then echo "[FAILED] Information: El parametro shmseg con valor actual ${SHMSEG} debe tener una valor superior a 120" else echo "[OK] Information: El parametro shmseg con valor actual ${SHMSEG} debe tener una valor superior a 120" fi VPS_CEILING=$(${KCTUNE} | grep vps_ceiling | awk '{print $2}') if [ ${VPS_CEILING} -lt 64 ] then echo "[FAILED] Information: El parametro vps_ceiling con valor actual ${VPS_CEILING} debe tener una valor superior a 64" else echo "[OK] Information: El parametro vps_ceiling con valor actual ${VPS_CEILING} debe tener una valor superior a 64" fi SHMMAX=$(${KCTUNE} | grep shmmax | awk '{print $2}') if [ ${SHMMAX} -lt ${MEM_TOTAL} ] then echo "[FAILED] Information: El parametro shmmax con valor actual ${SHMMAX} debe tener una valor superior a ${MEM_TOTAL}" else echo "[OK] Information: El parametro shmmax con valor actual ${SHMMAX} debe tener una valor superior a ${MEM_TOTAL}" fi exit 0

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On oracle-validated RMP ... do it faster!

- by [email protected]

We all know that setting up a Linux host for installing RDBMS can be a really tedious task.Well I wasn't aware that there exists a pre-cooked RPM that installs all the required packages for a fresh install.Ill try to test it soon, in the meantime here you have for downloading it: ( OEL4 and OEL5)http://oss.oracle.com/el5/oracle-validated/http://oss.oracle.com/el4/oracle-validated/More information can be found at the My Oracle Support Note "Linux OS Installation with Reduced Set of Packages for Running Oracle Database Server (Doc ID 728346.1)"Also, check this website http://linux.oracle.com/pls/apex/f?p=102:1:2252801871920376 with a list of Oracle Linux Validated Configurations including software, hardware, storage, and network components along with documented best practicesHope it helps!--L

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On checking is a port open on the firewall?

- by [email protected]

Hi, well sometimes DBAs and sysadmin need to check if a particular port is "open" on the corporate firewall --i.e. *Grid Control* Will the communication between OMS and a management agent work? --One solution well consist on deploying the piece of software in question, start it and just check if everything works fine, however i find more classy trying to get that information beforeThere are several tools for doing so --i.e. nmap *like Trinity on The Matrix*, but just found a nice piece of code for establishing a socket on a parameter passed port.After running the program doing a telnet from the client machine will be a walk in the park Normal 0 21 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} #include <stdio.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> int main(int argc, char *argv[]) { int sockfd, newsockfd, portno, clilen; char buffer[256]; struct sockaddr_in serv_addr, cli_addr; int n; if (argc < 2) { fprintf(stderr,"ERROR: A port must be provided. Aborting ...\n"); return 1; } sockfd = socket(AF_INET, SOCK_STREAM, 0); if (sockfd < 0) { fprintf("ERROR: Unable to open socket. Aborting ...\n"); return 1; } portno = atoi(argv[1]); serv_addr.sin_family = AF_INET; serv_addr.sin_addr.s_addr = INADDR_ANY; serv_addr.sin_port = htons(portno); if (bind(sockfd, (struct sockaddr *) &serv_addr,sizeof(serv_addr)) < 0) { fprintf("ERROR: Unable to bind socket. Aborting ...\n"); return 1; } listen(sockfd,5); clilen = sizeof(cli_addr); newsockfd = accept(sockfd, (struct sockaddr *) &cli_addr,&clilen); if (newsockfd < 0) { fprintf("ERROR: Unable to accept connection. Aborting...\n"); return 1; } return 0; }Of course, you can still ask to the network guy if the port is open or notHope it helpsL

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11.2.0.1 finally available for MS-Windows

- by [email protected]

Hey,Just a quick note to inform that Oracle Database 11g Release 2 was released for MS-Windows Platform 32 & 64-bit the last weekDocumentation has been updated accordingly

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After upgrading to 12.04 the scanner from Brother Printer MFC-290C does not work

- by Lorenzo

I upgraded Ubuntu to 12.04 from 11.10. The printer works, but the scanner doesn't now. In 11.10 I had to install a special driver from Brother. The printer's model is Brother MFC-290C. The computer is a Toshiba Satellite. How can I get the scanner working? Update: I have a 64-bit installation on the Toshiba Satellite. Thank you for your instructions, Chad--24216. I followed each step: 1 through 5. I also updated the Brother Linux scanner S-KEY tool. The output of dpkg -l | grep Brother is: ii brscan-skey 0.2.3-0 Brother Linux scanner S-KEY tool ii brscan3 0.2.11-5 Brother Scanner Driver ii mfc290ccupswrapper:i386 1.1.2-2 Brother CUPS Inkjet Printer Definitions ii mfc290clpr:i386 1.1.2-2 Brother lpr Inkjet Printer Definitions ii printer-driver-ptouch 1.3-3ubuntu0.1 printer driver Brother P-touch label printers Still the scanner does not work. Here is the message from Xsane: Failed to open device brother3:bus6;dev1: Invalid argument. Here is the message from Simple Scan: Failed to scan. Unable to connect to scanner. And Scan Utility still doesn't display the scanner line.

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Will high reputation in Programmers help to get a good job?

- by Lorenzo

In reference to this question, do you think that having a high reputation on this site will help to get a good job? Aside silly and humorous questions, on Programmers we can see a lot of high quality theory questions. I think that, if Stack Overflow will eventually evolve in "strictly programming related" (which usually is "strictly coding related"), the questions on Programmers will be much more interesting and meaningful ("Stack Overflow" = "I have this specific coding/implementation issue"; "Programmers" = "Best practices, team shaping, paradigms, CS theory"). So could high reputation on this site help (or at least be a good reference)? And then, more o less than Stack Overflow?

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Ubuntu Server 12.04 as a router. Problem with DNS

- by Lorenzo

I have a virtualbox lab made up of 4 Windows 2008 R2 servers (DC/DNS,SQL,SHAREPOINT, EXCHANGE) that are configured with static ip addresses with NIC's attached to Internal network. Everything works. I had the requirement to execute some tests that also access external services available on the internet. To keep things clean and similar to the production environment I have installed another VM, with Ubuntu Server 12.04 64 bit and configured (I hope) to work as a router like described on this post. This VM has two network interfaces: first is Bridged with the host and is used as a WAN connection and the other one attached in the Internal Network with its own static IP address on the internal network subnet. But actually the Windows servers does not connect to the internet while the unix one connects. I did a route command. this is the result: Kernel IP Routing table Destination Gateway Genmask Flags Metric Ref Use Iface default 10.69.121.1 0.0.0.0 UG 100 0 0 eth0 10.69.121.0 * 255.255.255.0 U 0 0 0 eth0 192.168.83.0 * 255.255.255.0 U 0 0 0 eth1 Can somebody help me with this configuration? :) Thanks! Addendum: I forgot to mention that one of the windows server hosts a DNS service for which I should maybe configure a forwarding server but I do not exactly know which server to forward on... :(

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Ubuntu impossible to install: "unable to find a medium containing a live filesystem"

- by Lorenzo

Yes, I have read questions and answers with similar titles for this issue, which prevented me from installing Ubuntu for several MONTHS now, trying to figure it out. I have a MacBookPro with triple partition (one for Mac Snow Leopard, one for Windows 7, one for Linux) created with reFIT firmware (not BootCamp). I set up the system according to these instructions for reFIT: http://lifehacker.com/5531037/how-to-triple+boot-your-mac-with-windows-and-linux-no-boot-camp-required Now. There is a free partition ready to accept Linux into its arms, but Linux does not want to participate. Most answers to the issue "unable to find a medium containing a live filesystem" point to changing the BIOS booting system (which I don't know how to do, especially using this reFIT booting system), and to changing the socket of the USB (which does not concern me, since I am using a CD, actually I tried with a CD, then with a DVD, since a blank CD is only 700MB while the iso image file of Ubuntu is about 731MB). Anyway. This is what happens: I am in the Mac system (using the Mac partition) I insert the DVD with the burned image of Ubuntu (yes I have tried burning it again and agin on both CD and DVD blank discs). I restart the computer. When reFIT loads, I hold down the ALT key until the CD image appears. I select it, and hit Enter. A small Ubuntu icon appears at the bottom of the screen. Then a Ubuntu sign appears in the middle of the screen with small dots underneath, lighting up progressively over and over to indicate it's loading. Then everything turns black and the following message appears, at the end of a few lines of text: "unable to find medium with live file system". Please provide very practical suggestions on what to do to an unexperienced wannabe Ubuntu very patient user. Please start by saying how do I access the BIOS setup from reFIT bootup, and exactly what and why I need to try and change. (Will this mess up my reFIT bootup?) And anything else I need to do to finally be able to install Ubuntu. Thanks

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How to implement a safe password history

- by Lorenzo

Passwords shouldn't be stored in plain text for obvious security reasons: you have to store hashes, and you should also generate the hash carefully to avoid rainbow table attacks. However, usually you have the requirement to store the last n passwords and to enforce minimal complexity and minimal change between the different passwords (to prevent the user from using a sequence like Password_1, Password_2, ..., Password_n). This would be trivial with plain text passwords, but how can you do that by storing only hashes? In other words: how it is possible to implement a safe password history mechanism?

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Small app structure review

- by Lorenzo

Hi, I would be grateful if someone could review following: I have a main Form app. OnLoad it displays with Docstyle=Fill the main menu which is done by user control. If the user selects a choice in that Menu control, it fires an event (with one parameter Choice) which main forms reacts on. If the choice is run the app, it closes the user control (dipose) and call method starting the app. If the choice is to quit, it calls Application.Exit. Is that alright form programmers point of view?

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Problem after the Last Dist-upgrade in ubuntu 12.10

- by Lorenzo Iannucci

I just updated my ubuntu 12.10 netbook using the command sudo apt-get dist-upgrade. The last partial-upgrade has eliminated unity; if I try ro re-install Unity from Synaptic it tell me that I have problem with the dependecies in particular with "compiz-core-abiversion-20120920". I dont't really know what I have to do to re-install Unity. Does anybody could help me? Thanks a lot Sorry for my bad english....

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Ubuntu Server 12.04 as a router. Problem with DNS?? Or Routing table?

- by Lorenzo

I have a virtualbox lab made up of 4 Windows 2008 R2 servers (DC/DNS,SQL,SHAREPOINT, EXCHANGE) that are configured with static ip addresses with NIC's attached to Internal network. Everything works. I had the requirement to execute some tests that also access external services available on the internet. To keep things clean and similar to the production environment I have installed another VM, with Ubuntu Server 12.04 64 bit and configured (I hope) to work as a router like described on this post. This VM has two network interfaces: first is Bridged with the host and is used as a WAN connection and the other one attached in the Internal Network with its own static IP address on the internal network subnet. But actually the Windows servers does not connect to the internet while the unix one connects. I did a route command. this is the result: Kernel IP Routing table Destination Gateway Genmask Flags Metric Ref Use Iface default 10.69.121.1 0.0.0.0 UG 100 0 0 eth0 10.69.121.0 * 255.255.255.0 U 0 0 0 eth0 192.168.83.0 * 255.255.255.0 U 0 0 0 eth1 Can somebody help me with this configuration? :) Thanks! Addendum: I forgot to mention that one of the windows server hosts a DNS service for which I should maybe configure a forwarding server but I do not exactly know which server to forward on... :(

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router - Problem Sharing internet connection in my router

- by luis velasco

Hi we are 4 roomates at the university but I have a problem. One of my roomies is downloading torrents all the time. When somebody need make a call or doing something like you tube or a quiz using the internet conection. The internet is very slow.... I can not create a network using a computer as a proxy. I just need a good router (and in the budget no more than $50).. I just want to split 16MB. In a separated 4 x 4 mb (theoretically)..

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How do I split an internet connection into 4 equal connections?

- by luis velasco

My 4 roomates and I have a problem: One of my roomies is downloading torrents all the time. When somebody need make a call or doing something like you tube or a quiz using the internet conection. The internet is very slow.... I can not create a network using a computer as a proxy. I just need a good router (and in the budget no more than $50).. I just want to split a 16MB connection into a separated 4 x 4 mb (theoretically)..

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Bind a ViewModel to a DropDownListFor with a third value besides dataValueField/dataTextField

- by Elisa

When I show a list of testplanViewModels in my View and the user selects one the SelectedTestplanId is returned to the Controller post action. What should also be returned is the TemplateId which belongs to the SelectedTestplanId. When the AutoMapper definition is run the Testplan.TestplanId is implicitly copied over to the TestplanViewModel.TestplanId. The same could be done by providing a TemplateId on the TestplanViewModel. When the user selects now a "TestplanViewModel" in the View, how can I attach the TemplateId to the controller action to access it there? The DropDownList does not allow 2 dataValueFields! CreateMap<Testplan, TestplanViewModel>().ForMember(dest => dest.Name, opt => opt.MapFrom(src => string.Format("{0}-{1}-{2}-{3}", src.Release.Name, src.Template.Name, src.CreatedAt, src.CreatedBy))); public ActionResult OpenTestplanViewModels() { IEnumerable<Testplan> testplans = _testplanDataProvider.GetTestplans(); var viewModel = new OpenTestplanViewModel { DisplayList = Mapper.Map<IEnumerable<Testplan>, IEnumerable<TestplanViewModel>>(testplans) }; return PartialView(viewModel); } public class TestplanViewModel { public int TestplanId { get; set; } public string Name { get; set; } } public class OpenTestplanViewModel { [Required(ErrorMessage = "No item selected.")] public int SelectedTestplanId { get; set; } public IEnumerable<TestplanViewModel> DisplayList { get; set; } } OpenTestplanViewModel @using (Html.BeginForm("Open", "Testplan")) { @Html.ValidationSummary(false) @Html.DropDownListFor(x => x.SelectedTestplanId, new SelectList(Model.DisplayList, "TestplanId", "Name"), new { @class = "listviewmodel" }) }

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Create generic class instance throws TypeLoadException

- by Elisa

My TestLayer class has the namespace: "BLL.Infrastructure.TestLayer" and is inside the assembly: "BLL" public class LayerFactory<T, U> { public static IBaseLayer<T, U> Get() { var obj = Activator.CreateInstance("BLL", "BLL.Infrastructure.TestLayer", new object[] { (IBaseLayer<T, U>)null }); } } When I run the code the Activator throws an TypeLoadException with no more details Thats the concrete class it should create: GenericBaseLayer implements the IBaseLayer. public class TestLayer<T, U> : GenericBaseLayer<MyRequest, MyInfo.ActionType> { public TestLayer(IBaseLayer<MyRequest, MyInfo.ActionType> layer) : base(layer) { } } What do I wrong?

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Cacti not working for SNMP data sources

- by lorenzo-s

I installed packages cacti and snmpd on a Debian server. I'm able to display common graphs in Cacti (such as memory usage, load average, logged in users, etc) using the data templates listed as Unix. Now I want to replace these graphs with new ones using SNMP data sources, because I see there is also CPU usage and because it's not excluded I have to manage multiple hosts in the future. So, I installed snmpd on the machine and left the snmpd.conf as it is. In Cacti, I created three new data sources from SNMP templates for 127.0.0.1 host: ucd/net - CPU Usage - Nice ucd/net - CPU Usage - System ucd/net - CPU Usage - User Then I created a new graph from template ucd/net - CPU Usage, and select the three data sources in the Graph Item Fields section. Graph is now enabled and running, but empty. No data have been collected. Under Console - Devices my SNMP host is listed as up and running: System:Linux ip-xx-xx-xxx-xxx 3.2.0-23-virtual #36-Ubuntu SMP Tue Apr 10 22:29:03 UTC 2012 x86_64 Uptime: 929267 (0 days, 2 hours, 34 minutes) Hostname: ip-xx-xx-xxx-xxx Location: Sitting on the Dock of the Bay Contact: Me [email protected] In SNMP Options I left all as it is: SNMP Version: Version 1 SNMP Community: public SNMP Timeout: 500 ms Maximum OID's Per Get Request: 10 In Console - Utilities - Cacti Log I have multiple warning (two for each data source) every 5 minutes: 10/29/2012 01:45:01 PM - CMDPHP: Poller[0] Host[2] DS[18] WARNING: Result from SNMP not valid. Partial Result: U 10/29/2012 01:45:01 PM - CMDPHP: Poller[0] WARNING: SNMP Get Timeout for Host:'127.0.0.1', and OID:'.1.3.6.1.4.1.2021.4.15.0' 10/29/2012 01:45:01 PM - CMDPHP: Poller[0] Host[1] DS[9] WARNING: Result from SNMP not valid. Partial Result: U 10/29/2012 01:45:01 PM - CMDPHP: Poller[0] WARNING: SNMP Get Timeout for Host:'127.0.0.1', and OID:'.1.3.6.1.4.1.2021.11.52.0' 10/29/2012 01:40:01 PM - CMDPHP: Poller[0] Host[2] DS[19] WARNING: Result from SNMP not valid. Partial Result: U 10/29/2012 01:40:01 PM - CMDPHP: Poller[0] WARNING: SNMP Get Timeout for Host:'127.0.0.1', and OID:'.1.3.6.1.4.1.2021.4.6.0' [...] I have the feeling I'm missing something, but I cannot get it...

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Make user home directory at gdm login

- by Lorenzo

I'm trying to make home directory at (RADIUS) user gdm login. The auth is working right, but when I try gdm says that the user hasn't a home directory. I tried to do that with pam_mkhomedir.so but is not working. My /etc/pam.d/gdm file: PAM-1.0 auth sufficient pam_radius_auth.so auth sufficient pam_nologin.so auth sufficient pam_env.so readenv=1 auth sufficient pam_env.so readenv=1 envfile=/etc/default/locale auth sufficient pam_succeed_if.so @include common-auth auth optional pam_gnome_keyring.so account sufficient pam_radius_auth.so @include common-account session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so close session optional pam_limits.so @include common-session session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so open session optional pam_gnome_keyring.so auto_start session required pam_mkhomedir.so skel=/etc/skel umask=0022 @include common-password Thanks

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Mac OS X X11 gnome clients theme

- by Lorenzo Boccaccia

Is there any program to set the theme of x11 gnome applications under Mac OS X? I've installed macports and gnome, but I cant find the gnome-theme-manager that I'm using when under linux.

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