In many occasions I needed to convert a Putty ppk private key nack to open ssh key to be able to use it directly from a linux box command line. It is fairly simple to do but I always need to look it up so here it is for easy reference :
Install putty using yum in Fedora.
If you are using Ubuntu you need to install putty-tools as well
From the command line give
puttygen xxxxx2.ppk -O private-openssh -o key.ssh
Enter passphrase to load key:
Then log onto your system using
ssh root@84.200.82.6 -p 8057 -i key.ssh
Friday, April 19, 2013
Tuesday, April 16, 2013
Troubleshooting apache
check httpd service is running or not
• if its not starting the check the syntax of the config file
#httpd -S (display the all files and its location )
#httpd -t or apachectl configtest
if syntax is ok the config file is correct
• check the error logs of apache
/var/log/httpd/error_log
• apache also requires working dsn client support via /etc/resolv.conf and make sure dns is working fine
• check httpd.conf file there is correct entry of server name is there or not and check the port no
• check the size of the log file if it is full then it ll cause error 500 so make sure that log files are under limit and we can us e tool called logrotate in /etc/logrorate.d/httpd create configuration file for httpd log files
• It is possible that some other process may be using port 80 or 443. Use netstat command to list open port and their owners:
#nestat -tulpn
#netstat -tulpn |grep ‘:80′
If other process using port 80 / 443, you need to stop them or assign another port to Apache
• if its not starting the check the syntax of the config file
#httpd -S (display the all files and its location )
#httpd -t or apachectl configtest
if syntax is ok the config file is correct
• check the error logs of apache
/var/log/httpd/error_log
• apache also requires working dsn client support via /etc/resolv.conf and make sure dns is working fine
• check httpd.conf file there is correct entry of server name is there or not and check the port no
• check the size of the log file if it is full then it ll cause error 500 so make sure that log files are under limit and we can us e tool called logrotate in /etc/logrorate.d/httpd create configuration file for httpd log files
• It is possible that some other process may be using port 80 or 443. Use netstat command to list open port and their owners:
#nestat -tulpn
#netstat -tulpn |grep ‘:80′
If other process using port 80 / 443, you need to stop them or assign another port to Apache
What is SPF records and How to setup?
Why Is My Emails Getting As Spam?
Check above things.
First we need to check Email Headers.
1. Return Path
2. To
3. From
4. We should not use CAPS because not only being unprofessional, but it
also triggers spam filters. To land in the Spam folder consistently,
please do not USE ALL CAPS IN THE SUBJECT LINE AND THE BODY FROM TO and
Excessive punctuation (e.g. -/, ;^%#$@+ * "').
E.g. as follows.
1. Email "From : ADMIN ENROLL <noreply@exmaple.com>" getting
spam in gmail.com sometimes and if we not change it will increasing
count.
2. Email "From: noreply@exmaple.com" it
getting in mailbox, check the CAPS deference.
http://php.net/manual/en/function.mail.php
http://www.niso.org/khelp/kmlm/user_help/html/examine_mail_headers.html
Please check this too. It can be understand better. :)
http://www.infusionblog.com/email-marketing/7-ways-for-your-email-to-land-in-the-spam-folder/
Check SPF for Domain.:
http://www.microsoft.com/mscorp/safety/content/technologies/senderid/wizard/
What is SPF records and How to setup?
http://www.kazeli.com/help/index.cfm?pageloc=quest&questid=435&catid=337,338
To diagnose the mail. Why its going in Spam.
Check tool:
http://mxtoolbox.com/
Here you can check following points
1. Mxlookup : For your domain and ip
2. Blacklist : For your IP
3. Diagnostics : SMTP Diagnostics, check your mail server
4. Analyze Headers : Check your mail headers.
5. SPF Records : Check your Sender Policy Framework
7. DNS Lookup : Check your Domain lookup.
If you check above all things your mail will not go in Spam.!
Check above things.
First we need to check Email Headers.
1. Return Path
2. To
3. From
4. We should not use CAPS because not only being unprofessional, but it
also triggers spam filters. To land in the Spam folder consistently,
please do not USE ALL CAPS IN THE SUBJECT LINE AND THE BODY FROM TO and
Excessive punctuation (e.g. -/, ;^%#$@+ * "').
E.g. as follows.
1. Email "From : ADMIN ENROLL <noreply@exmaple.com>" getting
spam in gmail.com sometimes and if we not change it will increasing
count.
2. Email "From: noreply@exmaple.com" it
getting in mailbox, check the CAPS deference.
http://php.net/manual/en/function.mail.php
http://www.niso.org/khelp/kmlm/user_help/html/examine_mail_headers.html
Please check this too. It can be understand better. :)
http://www.infusionblog.com/email-marketing/7-ways-for-your-email-to-land-in-the-spam-folder/
Check SPF for Domain.:
http://www.microsoft.com/mscorp/safety/content/technologies/senderid/wizard/
What is SPF records and How to setup?
http://www.kazeli.com/help/index.cfm?pageloc=quest&questid=435&catid=337,338
To diagnose the mail. Why its going in Spam.
Check tool:
http://mxtoolbox.com/
Here you can check following points
1. Mxlookup : For your domain and ip
2. Blacklist : For your IP
3. Diagnostics : SMTP Diagnostics, check your mail server
4. Analyze Headers : Check your mail headers.
5. SPF Records : Check your Sender Policy Framework
7. DNS Lookup : Check your Domain lookup.
If you check above all things your mail will not go in Spam.!
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