User contributions for Saurabh
From Notes_Wiki
- 09:50, 8 November 2012 diff hist +372 N Mediawiki configuration Created page with "=mediawiki configuration= *Configuring new mediawiki *Blocking registration on mediawiki *Changing logo displayed by mediawiki *[[Enabling and using file uploads]..."
- 09:49, 8 November 2012 diff hist +29 m Main Page
- 09:49, 8 November 2012 diff hist +980 N Removing banned IP from denyhosts Created page with "=Removing banned IP from denyhosts= To remove banned IP from denyhosts follow these steps: Check whether IP is present in "/etc/hosts.deny" or not. If IP is not present in t..."
- 09:48, 8 November 2012 diff hist +1,297 N Configuring new denyhosts server from source Created page with "=Configuring new denyhosts server from source= # Download latest source code for denyhosts from Internet. # Extract file using something like '<tt>tar xzf DenyHosts-2.6.tar.g..."
- 09:48, 8 November 2012 diff hist +12 m Denyhosts configuration
- 09:48, 8 November 2012 diff hist +103 N Denyhosts configuration Created page with "=Denyhosts configuration= *Configuring new denyhosts server *Removing banned IP from denyhosts"
- 09:47, 8 November 2012 diff hist +29 m Main Page
- 09:46, 8 November 2012 diff hist +1,017 N Troubleshooting zimbra issues Created page with "=Troubleshooting zimbra issues= ==ldap fails to start== Zimbra ldap may fail to start if domain to IP address mapping is incorrect. Ensure that if primary domain in example...."
- 09:46, 8 November 2012 diff hist +4,442 N Basic zimbra configuration Created page with "=Zimbra= ==Installation== #Zimbra setup can be downloaded from http://www.zimbra.com/downloads/os-downloads.html #Verify md5sum and then extract download archive #<tt>servic..."
- 09:46, 8 November 2012 diff hist +97 N Zimbra server configuration Created page with "=Zimbra server configuration= *Basic zimbra configuration *Troubleshooting zimbra issues"
- 09:45, 8 November 2012 diff hist +33 m Main Page
- 09:44, 8 November 2012 diff hist +2,997 N SNMP server configuration for Linux hosts Created page with "=SNMP server configuration for Linux hosts= Steps: #Ensure that packages '<tt>net-snmp</tt>' and '<tt>net-snmp-utils</tt>' are installed. #Start snmpd service and enable it o..."
- 09:44, 8 November 2012 diff hist +75 N SNMP server configuration Created page with "=SNMP server configuration= *SNMP server configuration for Linux hosts"
- 09:44, 8 November 2012 diff hist +31 m Main Page
- 09:43, 8 November 2012 diff hist +801 N Cache peer configuration for squid Created page with "=Cache peer configuration for squid= ==Configuring cache peer for some specific domains== We can configure parent proxy for few specific domains. This can be useful if paren..."
- 09:42, 8 November 2012 diff hist +732 N Squid ACL notes Created page with "=Squid ACL notes= ==Blocking domains== We can use following lines to block domains youtube.com, youtube.co.uk, etc. from 10.2.48.0/24 IP range: <pre> acl youtube_facebook_s..."
- 09:41, 8 November 2012 diff hist +1,142 N Using encrypted channels to communicate with squid proxy server Created page with "=Using encrypted channels to communicate with squid proxy server= We can use <pre> https_port 8081 cert=/etc/squid/squid.pem </pre> in '<tt>squid.conf</tt>' to allow clients ..."
- 09:41, 8 November 2012 diff hist +1,602 N Configuring proxy authentication for squid Created page with "=Configuring proxy authentication for squid= ==Enabling proxy authentication using custom plugin== We can configure a program for basic authentication using lines like: <pre..."
- 09:40, 8 November 2012 diff hist +3,332 N Configuring squid cache Created page with "=Configuring squid cache= ==Configurable parameters related to squid cache== ===Configuring structure of squid_cache directory and amount of data stored=== We can configure..."
- 09:40, 8 November 2012 diff hist +1,643 N Configuring squid cache manager Created page with "=Configuring squid cache manager= ==Configure web interface of squid cache manager== Squid comes with cache manager CGI application which can be used to see cache statistics..."
- 09:39, 8 November 2012 diff hist +279 N Squid proxy server configuration Created page with "=squid proxy server configuration= *Configuring squid cache manager *Configuring squid cache *Configuring proxy authentication for squid *[[Using encrypted channe..."
- 09:39, 8 November 2012 diff hist +38 m Main Page
- 10:30, 7 November 2012 diff hist +153 N Generating new ssh host keys for openSSH server Created page with "=Generating new SSH host keys for openSSH server= To generate new SSH host keys use command: <pre> ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key </pre>"
- 10:30, 7 November 2012 diff hist +1,198 N Improving openSSH server performance Created page with "=Improving SSH server performance= There are various ways of improving SSH server performance. For example on local LAN disabling all types of DNS checks both on server and o..."
- 10:29, 7 November 2012 diff hist +675 N Disabling reverse DNS lookup for openSSH Created page with "=Disabling reverse DNS lookup for openSSH= Sometimes SSH to servers takes considerable time. This can be due to delay problems with DNS servers. If we are on local LAN and th..."
- 10:29, 7 November 2012 diff hist +1,117 N Passphrase for ssh-keys Created page with "=Passphrase for ssh-keys= When our public key, private key etc. can be used to access some sensitive information that it makes sense to protect our keys with some passphrase...."
- 10:28, 7 November 2012 diff hist +844 N Sharing multiple ssh connections Created page with "=Sharing multiple ssh connections= It is possible that once ssh connection is established with the machine, the same gets used for all additional ssh, scp, rsync etc. connect..."
- 10:28, 7 November 2012 diff hist +2,854 N Chrooting sftp users to home directory with openSSH Created page with "=Chrooting sftp users to home directory with openSSH= In shared hosting environment it might be desired that users can only do sftp and cannot execute shell commands. Also it..."
- 10:27, 7 November 2012 diff hist +577 N Configuring idle timeout for openSSH Created page with "=Configuring idle timeout for openSSH= We can configure idle timeout for ssh so that if there is no activity for given period, the user is automatically logged out. To config..."
- 10:27, 7 November 2012 diff hist +2 m OpenSSH server configuration
- 10:26, 7 November 2012 diff hist +336 N OpenSSH server configuration Created page with "=OpenSSH server configuration= *Configuring idle timeout for shell *Chrooting sftp users to home directory with openSSH *Sharing multiple ssh connections *[[Passp..."
- 10:25, 7 November 2012 diff hist +34 m Main Page
- 10:24, 7 November 2012 diff hist +904 N Configuring basic tftp server Created page with "=Configuring basic tftp server= To create a tftp server use: # <tt>yum install tftp tftp-server</tt> # Edit '<tt>/etc/xinetd.d/tftp</tt>', change disable to no # Start xinetd..."
- 10:24, 7 November 2012 diff hist +63 N Tftp server configuration Created page with "=tftp server configuration= *Configuring basic tftp server"
- 10:23, 7 November 2012 diff hist +31 m Main Page
- 10:22, 7 November 2012 diff hist +12,669 N Basic samba server configuration Created page with "=Basic samba server configuration= ==On Windows XP== # Either disable windows firewall or Create exception for file and printer sharing in windows firewall. # Disable all vi..."
- 10:22, 7 November 2012 diff hist +67 N Samba server configuration Created page with "=Samba server configuration= *Basic samba server configuration"
- 10:22, 7 November 2012 diff hist +32 m Main Page
- 10:21, 7 November 2012 diff hist +4,649 N Configuring basic pxeboot server Created page with "=Configuring basic pxeboot server= To configure a basic pxeboot server we can use following steps: #Install packages '<tt>dhcp</tt>', '<tt>tftp-server</tt>' and '<tt>syslinux..."
- 10:20, 7 November 2012 diff hist +69 N Pxeboot server configuration Created page with "=pxeboot server configuration= *Configuring basic pxeboot server"
- 10:20, 7 November 2012 diff hist +34 m Main Page
- 10:18, 7 November 2012 diff hist +1,372 N Configuring LDAP based authentication for apache Created page with "=Configuring LDAP based authentication for apache= To configure LDAP based authentication for apache use: #Install mod_authz_ldap package using '<tt>yum -y install mod_authz_..."
- 10:17, 7 November 2012 diff hist +669 N Host resolution using openLDAP Created page with "=Host resolution using ldap= To use ldap for host resolution use following steps: #Verify that '<tt>nis</tt>' schema is included in slapd configuratiodn #Create an ou for hos..."
- 10:17, 7 November 2012 diff hist +6,507 N Configuring authentication with openLDAP server Created page with "=Configuring authentication with openLDAP server= ==LDAP server configuration== ===User accounts=== First user accounts or groups should be created on ldap server. A sample ..."
- 10:16, 7 November 2012 diff hist +2,750 N Configuring openLDAP replica server Created page with "=Configuring openLDAP replica server= ==Primary server configuration== ===Enable syncronization module=== To configure replica server on primay node add following global c..."
- 10:16, 7 November 2012 diff hist +624 N Database wide operations such as backup or restore for openLDAP Created page with "=Database wide operations such as backup or restore for openLDAP= ==Backing up ldap database== To backup ldap database use: <pre> slapcat -l <backup_file> -f /etc/openldap/s..."
- 10:15, 7 November 2012 diff hist +1,397 N Converting old slapd.conf file to cn=config format Created page with "=Converting old slapd.conf file to cn=config format= To convert slapd.conf file to new format start slapd once using '<tt>-F</tt>' option with an empty directory such as: <pr..."
- 10:15, 7 November 2012 diff hist +2,340 N OpenLDAP client configuration Created page with "=ldap client configuration= ==Configuring thunderbird to use LDAP address book== We can use following values to create LDAP address book in thunderbird that uses IIIT ldap s..."
- 10:14, 7 November 2012 diff hist +5,690 N Securing openLDAP SASL authentication Created page with "=Securing openLDAP SASL authentication= ==Managing password stored in DIT== To modify or set ldap passwords using slapd.conf (rootpw) or ldapmodify/ldapadd (userPassword) on..."
- 10:13, 7 November 2012 diff hist +7,435 N Configuring TLS or SSL security for openLDAP server Created page with "=Configuring TLS or SSL security for openLDAP server= ==Certificate generation== ''All certificate generation related steps can also be done using '<tt>easy-rsa</tt>' script..."
- 10:11, 7 November 2012 diff hist +1,988 N Configuring ACLs in openLDAP server Created page with "=Configuring ACLs in openLDAP server= ==Adding ACLs== To add ACLs create a ACL configuration file named '<tt>/etc/openldap/slapd.acl' and modify '<tt>slapd.conf</tt>' so tha..."
- 10:10, 7 November 2012 diff hist +10,282 N Installation and configuration of basic openLDAP server Created page with "=Installation and configuration of basic openLDAP server= ==Install ldap server== To install ldap server use: <pre> yum -y install openldap-servers openldap-clients openldap..."
- 10:10, 7 November 2012 diff hist +5,509 N Basic theory of ldap Created page with "=Basic theory of LDAP= ==Introduction== OpenLDAP can be used to store information in tree type fashion. Difference between an RDBMS and LDAP is that data in RDBMS is organiz..."
- 10:09, 7 November 2012 diff hist +604 N OpenLDAP Created page with "=openLDAP server configuration= *Basic theory of ldap *Installation and configuration of basic openLDAP server *Configuring ACLs in openLDAP server *[[Configuring..."
- 10:07, 7 November 2012 diff hist +35 m Main Page
- 04:46, 7 November 2012 diff hist +10,118 N Configuring email virtual hosting using sendmail Created page with "=Configuring email virtual hosting using sendmail= We can host email services for multiple domains like @domain1.com, @domain2.com, etc. on same email server with single IP a..."
- 04:45, 7 November 2012 diff hist +86 N Sendmail server configuration Created page with "=Sendmail server configuration= *Configuring email virtual hosting using sendmail"
- 04:44, 7 November 2012 diff hist +35 m Main Page
- 04:43, 7 November 2012 diff hist +298 N Testing bind server configuration Created page with "=Testing bind server configuration= ==Checking response times== One of the parameters that can be tested for DNS servers is response time. We can use command: <pre> dig @<na..."
- 04:36, 7 November 2012 diff hist +4,808 N Configuring basic DNS service with bind Created page with "=Configuring basic DNS service with bind= In order to configure basic DNS service with bind we can first look for sample named.conf that came with our bind distribution. We c..."
- 04:35, 7 November 2012 diff hist +116 N Bind DNS server configuration Created page with "=Bind DNS server configuration= *Configuring basic DNS service with bind *Testing bind server configuration"
- 04:35, 7 November 2012 diff hist +35 m Main Page
- 04:28, 7 November 2012 diff hist +3,986 N Enabling peap authentication with freeRADIUS server Created page with "=Enabling peap with freeRADIUS= '''Note that below steps just work upto enabling peap without causing any startup problems. The settings could not be tested with any NAS clie..."
- 04:28, 7 November 2012 diff hist +2,660 N Configuring Windows XP for using 802.1x for Ethernet Created page with "=Configuring Windows XP for using 802.1x for Ethernet= #Login as user which belongs to administrators group. #Go to Control panel -> Administrative tools -> Services or use '..."
- 04:27, 7 November 2012 diff hist +3,553 N Configuring very basic radius server Created page with "=Configuring very basic radius server with local user file based authentication= #Do 'chkconfig radiusd on' to enable radius server on PC startup. #Run 'service radiusd start..."
- 04:27, 7 November 2012 diff hist +775 N Configuring Linksys switch as radius client Created page with "=Configuring Linksys switch as RADIUS client= To configure Linksys switches (specifically SLM224G2) as client for radius server use following steps: #Log into switch using we..."
- 04:26, 7 November 2012 diff hist +233 N Freeradius configuration Created page with "=Freeradius configuration= *Configuring Linksys switch as radius client *Configuring very basic radius server *[[Configuring Windows XP for using 802.1x for Ethernet]..."
- 04:26, 7 November 2012 diff hist +30 m Main Page
- 04:23, 7 November 2012 diff hist +458 N Redirecting site using apache configuration Created page with "=Redirecting site using apache configuration= There are many ways of reidrecting websites using apache. Most of them are discussed at http://www.yolinux.com/TUTORIALS/ApacheR..."
- 04:22, 7 November 2012 diff hist +1,162 N Using mod proxy to pass requests to local servers transparently Created page with "=Using mod proxy to pass requests to local servers transparently= We can use '<tt>ProxyPass</tt>' and '<tt>ReverseProxyPass</tt>' apache configuration directives to pass requ..."
- 04:22, 7 November 2012 diff hist +2,386 N Basic awstats configuration Created page with "=Basic awstats configuration= awstats can be used to analyze the traffic pattern of the website. This can help in identifying main entry and exit points for users. It can als..."
- 04:21, 7 November 2012 diff hist +57 N Awstats configuration Created page with "=awstats configuration= *Basic awstats configuration"
- 04:21, 7 November 2012 diff hist +92 m Main Page
- 04:20, 7 November 2012 diff hist −27 m Apache web server configuration
- 04:19, 7 November 2012 diff hist +710 N Disabling mod security for apache Created page with "=Disabling mod_security for apache= It is possible to come across apache configuration where POST requests containing path like /etc/shadow or /bin/ping get blocked. To solve..."
- 04:19, 7 November 2012 diff hist +39 m Configuring multiple SSL sites
- 04:18, 7 November 2012 diff hist +5,420 N Apache virtualhost configuration for hosting multiple domains Created page with "=Apache Virtual Host configuration for hosting multiple domains= In order to configure many different domain names like 'first.example.com' and 'second.example.com' on same a..."
- 04:16, 7 November 2012 diff hist +2,730 N Using ajp module to pass requests to tomcat server listening on localhost transparently Created page with "=Using ajp module to pass requests to tomcat server listening on localhost transparently= We can use ajp module to pass requests coming to apache web server on port 80 to tom..."
- 04:15, 7 November 2012 diff hist +2,955 N Configuring multiple SSL sites Created page with "=Configuring mod_gnutls for apache= mod_gnutls allows us to have multiple HTTPS virtual hosts on same physical server with single IP address and multiple domain names. The ce..."
- 04:15, 7 November 2012 diff hist +456 N Apache web server configuration Created page with "=Apache web server configuration= *Configuring mod_gnutls so that we can have HTTPS virtual hosts in apache *[[Using ajp module to pass requests to tomcat server listenin..."
- 04:14, 7 November 2012 diff hist +37 m Main Page
- 04:09, 7 November 2012 diff hist +963 N MySQL Query logging Created page with "=Query logging= ==Logging all queries== We can log all queries that are received by server (even that have incorrect syntax) using '<tt>log</tt>' option in '<tt>[mysqld]</tt..."
- 04:09, 7 November 2012 diff hist +952 N Troubleshooting MySQL table errors Created page with "=Troubleshooting table errors= ==Table not found or file not found errors== Normally mysql database is kept in '<tt>/var/lib/mysql</tt>' folder. In this folder there is gene..."
- 04:08, 7 November 2012 diff hist +673 N Resetting MySQL root password Created page with "=Resetting mysql root password= In case we have root privileges on server and want to reset mysql root password then we can use following steps: #Stop mysql service if it is..."
- 04:08, 7 November 2012 diff hist +662 N Disabling case-sensitive checking for table and column names in MySQL Created page with "=Disable case-sensitive checking in MySQL= On Operating Systems like Windows where filesystem is case-insensitive MySQL would be case-insensitive by default. But on operating..."
- 04:07, 7 November 2012 diff hist +724 N Enabling Innodb engine for MySQL Created page with "=Enabling Innodb engine for MySQL= To enable Innodb engine for MySQL put following lines in `<tt>/etc/my.cnf</tt>' file <pre> innodb_data_home_dir = /usr/local/mysql/var/ inn..."
- 04:06, 7 November 2012 diff hist +769 N Configuring basic MariaDB server Created page with "=Configuring basic MySQL server= =Installation= To install mysql server use: <pre> yum -y install mysql-server </pre> =Configuration= ==Starting mysql server== To start..."
- 04:06, 7 November 2012 diff hist +12 m Mariadb configuration
- 04:05, 7 November 2012 diff hist +259 N Mariadb configuration Created page with "=MySQL configuration= *Configuring basic mysql server *Enabling Innodb engine for MySQL *Disabling case-sensitive checking for table and column names in MySQL *[[..."
- 04:05, 7 November 2012 diff hist +25 m Main Page
- 04:04, 7 November 2012 diff hist +2,096 N Installing rsyslog from yum repository Created page with "=Configuring rsyslog server in CentOS= To install rsyslog server in CentOS from source follow these steps: *Download latest stable release of rsyslog from http://www.rsyslog..."
- 04:03, 7 November 2012 diff hist +60 N Rsyslog configuration Created page with "=rsyslog configuration= *Installing rsyslog from source"
- 04:03, 7 November 2012 diff hist +27 m Main Page
- 03:17, 7 November 2012 diff hist +300 N Increasing detail of logwatch output Created page with "=Increasing detail of logwatch output= many log scripts accept variables and generate different detail / type of output based on value of variable. Hence we can edit '/etc/lo..."
- 03:17, 7 November 2012 diff hist +42 m Logwatch configuration
- 03:13, 7 November 2012 diff hist +2,251 N Creating new logwatch service or scripts Created page with "==Creating new logwatch service or scripts== ===Creating service configuration file=== In order to get log messages of remote host though logwatch email we have to setup serv..."
- 03:11, 7 November 2012 diff hist +71 N Logwatch configuration Created page with "=Logwatch configuration= *Creating new logwatch service or scripts"
- 03:09, 7 November 2012 diff hist +612 N About wiki Created page with "=About wiki= This wiki is used to share my personal notes related to servers, system administration, security, programming, network devices, etc. I use Cent-OS / Fedora / RHE..."
- 03:05, 7 November 2012 diff hist +261 N User:Saurabh Created page with "=Saurabh Barjatiya= I am the main author for this notes wiki. My personal homepage is at http://www.sbarjatiya.com/ I can be contacted at saurabh[at]sbarjatiya.com. Any su..." current
- 02:42, 7 November 2012 diff hist −341 m Main Page