In this article will show you how to setup and configure SSH for two factor authentication under Red Hat, CentOS, Fedora and Ubuntu, Installing Google Authenticator Module Open the server/system that you want to setup two factor authentication and install following PAM libraries along with development libraries that...
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October 4, 2014 Admin
Centos/RHEL
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If you are getting error as “sh: whoami/command not found” with php exec function. You need to check the apache error logs. Because in my case apache logs was showing below error.
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October 4, 2014 Admin
Apache
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This article will help to lock and unlock user on linux system root@server [~]#passwd -l gthomas Locking password for user gthomas. passwd: Success root@server [~]# grep user /etc/shadow gthomas:!!$1$YKoF7EbU$zXqSSlKelclFLn0LDR/YM0:16063:0:99999:7::: root@server [~]#passwd -u gthomas Unlocking password for user gthomas. passwd: Success root@server [~]#grep gthomas /etc/shadow gthomas:$1$YKoF7EbU$zXqSSlKelclFLn0LDR/YM0:16063:0:99999:7:::
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October 3, 2014 Admin
Centos/RHEL
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The Multi Router Traffic Grapher (MRTG) is a tool to monitor the traffic load on network-links. MRTG generates HTML pages containing PNG images which provide a LIVE visual representation of this traffic. You need the following packages: net-snmp and net-snmp-utils : SNMP (Simple Network Management Protocol) is a...
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October 2, 2014 Admin
Topic
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This article will describe that how to enable rbls in postfix and prevent the spam mails on the server. Configure Postfix to verify the IP address of the incoming mail against one or more RBL’s. If the IP is a contest, then server will not accept the message...
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October 2, 2014 Admin
Postfix
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