This blog gives you the basic troubleshooting for oracle, Network,Firewall,Wordpress,Linux,cisco router ,Leased line,thin client,server,Windows OS,Open Office ,OpenNMS,squid etc
Friday, December 18, 2009
Pocket PC HP Ipaq 2200 with symbol wifi networker
1. I first installed Pocket PC Drivers, then I inserted wireless networker into the slot LED slowly flashes.But there is no display of symbol status utility icon .
then I removed the driver.
2 then I installed PocketPc2002 drivers.then I inserted wireless networker into the slot
LED slowly flashes.But there is no display of symbol status utility icon .
then I removed the driver
3. then I installed HPC 2000 Drivers.
error Message :
symbol wireless networker for HPC 2000 does not support the connected device type,.
Now there is no Driver is installed
When I insert the card without driver it says unrecognized card.
Pocket PC : HP Ipaq 2200
OS Version : Windows CE 4.2
Any OS version and driver compatibility problem?
Solution :
I downloaded driver from this location
ftp://symstore.longisland.com/Symstore/exe/downloads/S24MC392B62_02.exe
Now its working.
-itadmin
Monday, November 9, 2009
Not able to send mail using postfix
postfix/smtp[15536]: ADFC3278074: to=
[203.104.17.239]:25, delay=0.91, delays=0.15/0.05/0.72/0, dsn=4.0.0,
status=deferred (host mta1.biz.mail.vip.in2.yahoo.com[203.104.17.239]
refused to talk to me: 553 Mail from 122.165.2.82 not allowed - 5.7.1 [BL23]
Connections not accepted from IP addresses on Spamhaus XBL;
see http://postmaster.yahoo.com/550-bl23.html [550])
If you found this problem. then your static ip is listed under spam sourcer.
http://www.spamhaus.org/lookup.lasso
Then check your firewall for spam activity by your own client which was compromised by virus or trojan or bot.
For fortinet
check - statistics --> sessions -->
source address source port destination address destination port
192.168.2.15 2125 222.252.2.5 25 (main suspect)
this client destination port is 25 , so check this computer with tcpview .
Try to clean your client or format it And check fortinet log for further clients which were compromised.Then try to remove your IP from CBL.
Thursday, October 29, 2009
Postfix errors and testing
#postfix start
#postfix stop
if it says postfix is not running
check the application at port no 25 and stop that application (might be sendmail) and try once again.
#postfix start
#postfix stop
If postfix stops .Then its working.
For errors check this log file check /var/log/maillog
Send mail using postfix testing :
From your desktop try this
[root@mail ~]# telnet [proxyservername or IP] smtp
220 xdprox.amthi ESMTP Postfix
Escape character is '^]'.
220 mail.acme.local ESMTP Postfix
ehlo host
250-mail.acme.local
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
mail from: xxxx@amar.com
250 2.1.0 Ok
rcpt to: yyyy@amar.com
250 2.1.5 Ok
data
354 End data with
.
250 2.0.0 Ok: queued as 9729067C17
quit
221 2.0.0 Bye
Connection closed by foreign host.
[root@mail ~]#
**** CHECK DOT AFTER TEST MESSAGE
Now check your mail id yyyy@amar.com
If you received your test message , you have successfully installed and configured your postfix .
Simple setup for sending mail from outlook express with proxy server setup
http://ftp.sanguine.net/pub/postfix/official/2.5/RPMS-rhel5-i386/ go to this site and download your postfix version and install.
configuration /etc/postfix/main.cf: Add or modify this parameters.
inet_interfaces = all
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
home_mailbox = Maildir/
mydomain=[your domainname]
# if it comes under C class network.Add all your sites subnet details here.
mynetworks=192.168.28.0/24,192.168.27.0/24
then start postfix
#postfix start
Configuration outlook express :
Proxy server IP :192.168.3.8
configure internet accounts in outlook express :
servers
incoming mail server 192.168.3.8
outgoing mail server 192.168.3.8
outgoing mail server
check - my server required authentication
Leave all other parametes to its default values.
Now you can send mail from outlook express thro postfix.
fetchmail - collect mail from yahoo mail server and view using mail
and Add
poll pop.bizmail.yahoo.com with proto pop3
user ***@yahoo.com
Dont use user root here.create another user for fetchmail.
then use mail or mutt to check your mails.
To view new mails : mail -u [username]
To view all mails : mail -u [username] -f
Monday, October 19, 2009
create MS office documents using Open office
SureTrak: Insert an Object or a Picture
Unable to upload files into wordpress
change default location wp-content/uploads to exact location
it may be
ex : /var/www/html/wp-content/uploads
Wordpress - restricting upload file size
squid proxy configuration
Step 1:
Add [host ip ] [host name] into file
ex: 192.162.5.25 proxyser
file /etc/hosts
Step 2:
change file /etc/sysconfig/network
hostname = [enter your hostname]
gateway=[enter your gateway IP] [if available]
step 3 :
file /etc/squid/squid-conf
visible_hostname=amarprox
http_port= 8080
cache_dir ufs /var/spool/squid 1000 16 256
cache_access_log /var/log/squid.log
set write permission to directory /var/log
Place this access control before all other access control lists.
acl intranet src 192.162.5.0/24 {this will allow systems under this IP region would use this proxy server}
http_access allow intranet
Step 4:
file /etc/resolv.conf
add nameservers
ex:
203.145.1.8
203.145.152
Step 5
Configure client with this proxy system ip and access ur internet.
Tuesday, September 1, 2009
How to kill application runs in a specific port
Friday, August 28, 2009
Removing Vlan and Interface from router
cisco#configure terminal
cisco(config)#interface fastethernet 0/3/2
cisco(config-if)#no switchport access vlan 30
Removing Vlan from database
cisco#vlan database
cisco(vlan)#no vlan 30
cisco(vlan)#exit
That's it.
Assigning VLAN to interface
cisco#vlan database
cisco(vlan)#vlan 30
cisco(vlan)#exit
Assigning interface
cisco#configure terminal
cisco(config)#interface fastethernet 0/3/2
cisco(config-if)#switchport access vlan 30
That's it.
Wednesday, August 26, 2009
Linux remote rebooting
From linux machine
ssh root@remotemachineip
It will prompt your root password
enter password
Now you connected to linux machine .Give command reboot
that's it.
Tuesday, August 4, 2009
Oracle Enterprise Manger OS username acceptance
control panel -> Admin Tools ->Local Security Policy -> security settings -> Local Policies -> User rights assign -> Log on as a batch Job
Add the dba user for this service.
Monday, August 3, 2009
router with Leased line
Cisco router with BSNL leased line - Not working
Login into your router
run #sh int ser 0/1/0
check the reliabilty 200/255
Contact BSNL and try to improve the reliability to 255
Symantec Backup exec for Oracle
If symantec backup exec wont connect to your oracle agent in your server (linux).
# /etc/init.d/VRTSralus.init start starting failed
run #./beremote --log-console
If it shows address already in use error
check # netstat -tvlnp | grep 10000
if not shows the service beremote
change the port forNDMP
#vi /etc/services
add --- ndmp 12000/tcp
And try once againg.It will solve your problem.
router not working properly
Eventhough your router and your communication medias (Leased line ,RF etc) are working properly , if some path in your wan system not working properly.Then check your switches , and remove the cables one by one.Then check the non-working path.It may solve your problem.
Cisco router communication Problem - 3 locations
If you have three location , you can ping from first location to second location and you can ping from second location to third location.But if you not able to ping from first location to third location.then there may be brodcast problem.
try this in your second router
Login using #telnet
#configure terminal
#router eigrp 2
then add that network - It may solve your problem