�ݺ�ߣshows by User: tolaleng

�ݺ�ߣshows by User: tolaleng / http://www.slideshare.net/images/logo.gif �ݺ�ߣshows by User: tolaleng / Thu, 02 Jan 2020 08:42:10 GMT �ݺ�ߣShare feed for �ݺ�ߣshows by User: tolaleng The Linux Command Cheat Sheet /slideshow/the-linux-command-cheat-sheet/214171946 choosingalinuxdistro-200102084210
When you are new to Linux in 2020, go for the latest Mint or Fedora. If you only want to practice the Linux command line then install one Debian server and/or one CentOS server (without graphical interface).]]>
When you are new to Linux in 2020, go for the latest Mint or Fedora. If you only want to practice the Linux command line then install one Debian server and/or one CentOS server (without graphical interface).]]> Thu, 02 Jan 2020 08:42:10 GMT /slideshow/the-linux-command-cheat-sheet/214171946 tolaleng@slideshare.net(tolaleng) The Linux Command Cheat Sheet tolaleng When you are new to Linux in 2020, go for the latest Mint or Fedora. If you only want to practice the Linux command line then install one Debian server and/or one CentOS server (without graphical interface). <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/choosingalinuxdistro-200102084210-thumbnail.jpg?width=120&height=120&fit=bounds" /> When you are new to Linux in 2020, go for the latest Mint or Fedora. If you only want to practice the Linux command line then install one Debian server and/or one CentOS server (without graphical interface).

The Linux Command Cheat Sheet from Tola LENG

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0 System Engineer: OpenLDAP and Samba Server /slideshow/system-engineer-openldap-and-samba-server/69532361 natola-161125173036
There is to description and configure implement about OpenLDAP Configuration and Samba Server on SuSE Linux]]>
There is to description and configure implement about OpenLDAP Configuration and Samba Server on SuSE Linux]]> Fri, 25 Nov 2016 17:30:36 GMT /slideshow/system-engineer-openldap-and-samba-server/69532361 tolaleng@slideshare.net(tolaleng) System Engineer: OpenLDAP and Samba Server tolaleng There is to description and configure implement about OpenLDAP Configuration and Samba Server on SuSE Linux <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/natola-161125173036-thumbnail.jpg?width=120&height=120&fit=bounds" /> There is to description and configure implement about OpenLDAP Configuration and Samba Server on SuSE Linux

System Engineer: OpenLDAP and Samba Server from Tola LENG

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0 Tola.leng mail server (sq_mail & rcmail)_q5_ /slideshow/tolaleng-mail-server-sqmail-amp-rcmailq5/65934732 tola-160912133523
1. Design a new network infrastructure. 3 2. Install & Configure Domain Name System: 3 a. Install DNS 3 Test mail in Webserver machine 7 3. Postfix Service: 9 a. Install Postfix 10 b. Send email test (postfix) 10 4. Configure Postfix: 12 a. Enable some option for mail server 13 b. Test Send/Receive mail 14 5. Configure Dovecot: 15 a. Download Dovecot package *.rpm 15 b. Extract *.rpm package 15 c. Configure Dovecot file 16 d. Use Mail client 17 _other User 19 6. Configure Web mail: 22 • To Configure webmail in webserver machine NOT use in mail server machine 22 a. Squirrelmail 24  Configure in Server Setting 28  Configure Vhost 34  Test Result 36 b. Roundcube 38  Create and Configure Vhost 41  Let user access 43 7. Set option change password: 46 a. Squirrelmail 47 b. Roundcube 51 8. SMTPS and POP3S to secure encryption message` 51 a. Create certificate 51 b. Configure 52 9. Configure sasl sender and receiver/smpts authentication. 63 a. Configure SMTP Authentication /SASL Sender 63 10. Create address list/group (aliases address) 67 11. User SSL to encryption connection on browser 70 12. User authentication from AD or OpenLDAP 79  Configure LDAP Server on Mail Server 80  Configure LDAP Client on mail Server 82 Restart services 87  Create user in ldap 88  Let Webserver Join Domain with Mail server LDAP 92  Enable LDAP on Squirrelmail 99 Let’s User test Authentication 104  Let ‘ user change password 107 ]]>
1. Design a new network infrastructure. 3 2. Install & Configure Domain Name System: 3 a. Install DNS 3 Test mail in Webserver machine 7 3. Postfix Service: 9 a. Install Postfix 10 b. Send email test (postfix) 10 4. Configure Postfix: 12 a. Enable some option for mail server 13 b. Test Send/Receive mail 14 5. Configure Dovecot: 15 a. Download Dovecot package *.rpm 15 b. Extract *.rpm package 15 c. Configure Dovecot file 16 d. Use Mail client 17 _other User 19 6. Configure Web mail: 22 • To Configure webmail in webserver machine NOT use in mail server machine 22 a. Squirrelmail 24  Configure in Server Setting 28  Configure Vhost 34  Test Result 36 b. Roundcube 38  Create and Configure Vhost 41  Let user access 43 7. Set option change password: 46 a. Squirrelmail 47 b. Roundcube 51 8. SMTPS and POP3S to secure encryption message` 51 a. Create certificate 51 b. Configure 52 9. Configure sasl sender and receiver/smpts authentication. 63 a. Configure SMTP Authentication /SASL Sender 63 10. Create address list/group (aliases address) 67 11. User SSL to encryption connection on browser 70 12. User authentication from AD or OpenLDAP 79  Configure LDAP Server on Mail Server 80  Configure LDAP Client on mail Server 82 Restart services 87  Create user in ldap 88  Let Webserver Join Domain with Mail server LDAP 92  Enable LDAP on Squirrelmail 99 Let’s User test Authentication 104  Let ‘ user change password 107 ]]> Mon, 12 Sep 2016 13:35:23 GMT /slideshow/tolaleng-mail-server-sqmail-amp-rcmailq5/65934732 tolaleng@slideshare.net(tolaleng) Tola.leng mail server (sq_mail & rcmail)_q5_ tolaleng 1. Design a new network infrastructure. 3 2. Install & Configure Domain Name System: 3 a. Install DNS 3 Test mail in Webserver machine 7 3. Postfix Service: 9 a. Install Postfix 10 b. Send email test (postfix) 10 4. Configure Postfix: 12 a. Enable some option for mail server 13 b. Test Send/Receive mail 14 5. Configure Dovecot: 15 a. Download Dovecot package *.rpm 15 b. Extract *.rpm package 15 c. Configure Dovecot file 16 d. Use Mail client 17 _other User 19 6. Configure Web mail: 22 • To Configure webmail in webserver machine NOT use in mail server machine 22 a. Squirrelmail 24  Configure in Server Setting 28  Configure Vhost 34  Test Result 36 b. Roundcube 38  Create and Configure Vhost 41  Let user access 43 7. Set option change password: 46 a. Squirrelmail 47 b. Roundcube 51 8. SMTPS and POP3S to secure encryption message` 51 a. Create certificate 51 b. Configure 52 9. Configure sasl sender and receiver/smpts authentication. 63 a. Configure SMTP Authentication /SASL Sender 63 10. Create address list/group (aliases address) 67 11. User SSL to encryption connection on browser 70 12. User authentication from AD or OpenLDAP 79  Configure LDAP Server on Mail Server 80  Configure LDAP Client on mail Server 82 Restart services 87  Create user in ldap 88  Let Webserver Join Domain with Mail server LDAP 92  Enable LDAP on Squirrelmail 99 Let’s User test Authentication 104  Let ‘ user change password 107 <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/tola-160912133523-thumbnail.jpg?width=120&height=120&fit=bounds" /> 1. Design a new network infrastructure. 3 2. Install & Configure Domain Name System: 3 a. Install DNS 3 Test mail in Webserver machine 7 3. Postfix Service: 9 a. Install Postfix 10 b. Send email test (postfix) 10 4. Configure Postfix: 12 a. Enable some option for mail server 13 b. Test Send/Receive mail 14 5. Configure Dovecot: 15 a. Download Dovecot package *.rpm 15 b. Extract *.rpm package 15 c. Configure Dovecot file 16 d. Use Mail client 17 _other User 19 6. Configure Web mail: 22 • To Configure webmail in webserver machine NOT use in mail server machine 22 a. Squirrelmail 24  Configure in Server Setting 28  Configure Vhost 34  Test Result 36 b. Roundcube 38  Create and Configure Vhost 41  Let user access 43 7. Set option change password: 46 a. Squirrelmail 47 b. Roundcube 51 8. SMTPS and POP3S to secure encryption message` 51 a. Create certificate 51 b. Configure 52 9. Configure sasl sender and receiver/smpts authentication. 63 a. Configure SMTP Authentication /SASL Sender 63 10. Create address list/group (aliases address) 67 11. User SSL to encryption connection on browser 70 12. User authentication from AD or OpenLDAP 79  Configure LDAP Server on Mail Server 80  Configure LDAP Client on mail Server 82 Restart services 87  Create user in ldap 88  Let Webserver Join Domain with Mail server LDAP 92  Enable LDAP on Squirrelmail 99 Let’s User test Authentication 104  Let ‘ user change password 107

Tola.leng mail server (sq_mail & rcmail)_q5_ from Tola LENG

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0 Open vpn server_linux /slideshow/open-vpn-serverlinux/65933278 openvpnserverlinux-160912125355
-Open VPN Server and Client -Install and configure Open VPN on Linux Server - Test server configuration -Test Client Connect VPN configuration]]>
-Open VPN Server and Client -Install and configure Open VPN on Linux Server - Test server configuration -Test Client Connect VPN configuration]]> Mon, 12 Sep 2016 12:53:55 GMT /slideshow/open-vpn-serverlinux/65933278 tolaleng@slideshare.net(tolaleng) Open vpn server_linux tolaleng -Open VPN Server and Client -Install and configure Open VPN on Linux Server - Test server configuration -Test Client Connect VPN configuration <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/openvpnserverlinux-160912125355-thumbnail.jpg?width=120&height=120&fit=bounds" /> -Open VPN Server and Client -Install and configure Open VPN on Linux Server - Test server configuration -Test Client Connect VPN configuration

Open vpn server_linux from Tola LENG

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0 File Share Server, FTP server on Linux SuSE and Windows /slideshow/file-share-server-ftp-server-on-linux-suse-and-windows/63866407 ftpservertola-leng-160709110225
-Install and configure Services -Configure Suse Linux for FTP File Share Server -Configure Permission - Configure Point IP address to specific users. - FTP Acccess]]>
-Install and configure Services -Configure Suse Linux for FTP File Share Server -Configure Permission - Configure Point IP address to specific users. - FTP Acccess]]> Sat, 09 Jul 2016 11:02:25 GMT /slideshow/file-share-server-ftp-server-on-linux-suse-and-windows/63866407 tolaleng@slideshare.net(tolaleng) File Share Server, FTP server on Linux SuSE and Windows tolaleng -Install and configure Services -Configure Suse Linux for FTP File Share Server -Configure Permission - Configure Point IP address to specific users. - FTP Acccess <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/ftpservertola-leng-160709110225-thumbnail.jpg?width=120&height=120&fit=bounds" /> -Install and configure Services -Configure Suse Linux for FTP File Share Server -Configure Permission - Configure Point IP address to specific users. - FTP Acccess

File Share Server, FTP server on Linux SuSE and Windows from Tola LENG

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0 Window8 installation on VMWare workstration /slideshow/window8-installation-on-vmware-workstration/62269753 window8installation-copy-160522094841
Installing Windows 8]]>
Installing Windows 8]]> Sun, 22 May 2016 09:48:41 GMT /slideshow/window8-installation-on-vmware-workstration/62269753 tolaleng@slideshare.net(tolaleng) Window8 installation on VMWare workstration tolaleng Installing Windows 8 <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/window8installation-copy-160522094841-thumbnail.jpg?width=120&height=120&fit=bounds" /> Installing Windows 8

Window8 installation on VMWare workstration from Tola LENG

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0 Ad, dns, dhcp, file server /slideshow/ad-dns-dhcp-file-server/56234668 addnsdhcpfileserver-151217102151
Active Directory Domain Name System DHCP File Server]]>
Active Directory Domain Name System DHCP File Server]]> Thu, 17 Dec 2015 10:21:51 GMT /slideshow/ad-dns-dhcp-file-server/56234668 tolaleng@slideshare.net(tolaleng) Ad, dns, dhcp, file server tolaleng Active Directory Domain Name System DHCP File Server <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/addnsdhcpfileserver-151217102151-thumbnail.jpg?width=120&height=120&fit=bounds" /> Active Directory Domain Name System DHCP File Server

Ad, dns, dhcp, file server from Tola LENG

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0 Tola.leng sa nagios /slideshow/tolaleng-sa-nagios/56234315 tola-151217101127
Nagios Monitoring Configuration]]>
Nagios Monitoring Configuration]]> Thu, 17 Dec 2015 10:11:27 GMT /slideshow/tolaleng-sa-nagios/56234315 tolaleng@slideshare.net(tolaleng) Tola.leng sa nagios tolaleng Nagios Monitoring Configuration <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/tola-151217101127-thumbnail.jpg?width=120&height=120&fit=bounds" /> Nagios Monitoring Configuration

Tola.leng sa nagios from Tola LENG

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0 How to be a good presentor by tola /slideshow/how-to-be-a-good-presentor-by-tola/56233744 howtobeagoodpresentorbytola-151217095314
List the main guides of the presentations]]>
List the main guides of the presentations]]> Thu, 17 Dec 2015 09:53:14 GMT /slideshow/how-to-be-a-good-presentor-by-tola/56233744 tolaleng@slideshare.net(tolaleng) How to be a good presentor by tola tolaleng List the main guides of the presentations <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/howtobeagoodpresentorbytola-151217095314-thumbnail.jpg?width=120&height=120&fit=bounds" /> List the main guides of the presentations

How to be a good presentor by tola from Tola LENG

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0 Backup Data with Cron on Linux /slideshow/backup-data-with-cron-on-linux/56233042 backup-151217092958
-Cron -Back -Linux]]>
-Cron -Back -Linux]]> Thu, 17 Dec 2015 09:29:58 GMT /slideshow/backup-data-with-cron-on-linux/56233042 tolaleng@slideshare.net(tolaleng) Backup Data with Cron on Linux tolaleng -Cron -Back -Linux <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/backup-151217092958-thumbnail.jpg?width=120&height=120&fit=bounds" /> -Cron -Back -Linux

Backup Data with Cron on Linux from Tola LENG

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0 Basic command to configure mikrotik /slideshow/basic-command-to-configure-mikrotik/56189437 basiccommandtoconfiguremikrotik-151216042759
1. Setup router //to create a name for network card //to assign ip address to network card //to create NAT rule //to assign gateway //to assign dns //to create dhcp 2.Create login page(Hotspot) How to link from Mikrotik to Radius server]]>
1. Setup router //to create a name for network card //to assign ip address to network card //to create NAT rule //to assign gateway //to assign dns //to create dhcp 2.Create login page(Hotspot) How to link from Mikrotik to Radius server]]> Wed, 16 Dec 2015 04:27:58 GMT /slideshow/basic-command-to-configure-mikrotik/56189437 tolaleng@slideshare.net(tolaleng) Basic command to configure mikrotik tolaleng 1. Setup router //to create a name for network card //to assign ip address to network card //to create NAT rule //to assign gateway //to assign dns //to create dhcp 2.Create login page(Hotspot) How to link from Mikrotik to Radius server <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/basiccommandtoconfiguremikrotik-151216042759-thumbnail.jpg?width=120&height=120&fit=bounds" /> 1. Setup router //to create a name for network card //to assign ip address to network card //to create NAT rule //to assign gateway //to assign dns //to create dhcp 2.Create login page(Hotspot) How to link from Mikrotik to Radius server

Basic command to configure mikrotik from Tola LENG

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0 Mikrotik basic configuration /slideshow/mikrotik-basic-configuration-56150315/56150315 mikrotikbasicconfiguration-151215052956
Introduction Requirements Practice Project Infrastructure Lab Scenario: ]]>
Introduction Requirements Practice Project Infrastructure Lab Scenario: ]]> Tue, 15 Dec 2015 05:29:56 GMT /slideshow/mikrotik-basic-configuration-56150315/56150315 tolaleng@slideshare.net(tolaleng) Mikrotik basic configuration tolaleng Introduction Requirements Practice Project Infrastructure Lab Scenario: <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/mikrotikbasicconfiguration-151215052956-thumbnail.jpg?width=120&height=120&fit=bounds" /> Introduction Requirements Practice Project Infrastructure Lab Scenario:

Mikrotik basic configuration from Tola LENG

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0 Install linux suse(sless11) /slideshow/install-linux-susesless11/53424324 installlinuxsusesless11-151001142642-lva1-app6892
-How to install OS on Linux Suse]]>
-How to install OS on Linux Suse]]> Thu, 01 Oct 2015 14:26:42 GMT /slideshow/install-linux-susesless11/53424324 tolaleng@slideshare.net(tolaleng) Install linux suse(sless11) tolaleng -How to install OS on Linux Suse <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/installlinuxsusesless11-151001142642-lva1-app6892-thumbnail.jpg?width=120&height=120&fit=bounds" /> -How to install OS on Linux Suse

Install linux suse(sless11) from Tola LENG

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0 Configure active directory & trust domain /slideshow/configure-active-directory-amp-trust-domain/53312340 configureactivedirectorytrustdomain-150929080057-lva1-app6891
-Install AD -Managing OU, Domain, Control Computers & User, - Join Trust Domain]]>
-Install AD -Managing OU, Domain, Control Computers & User, - Join Trust Domain]]> Tue, 29 Sep 2015 08:00:56 GMT /slideshow/configure-active-directory-amp-trust-domain/53312340 tolaleng@slideshare.net(tolaleng) Configure active directory & trust domain tolaleng -Install AD -Managing OU, Domain, Control Computers & User, - Join Trust Domain <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/configureactivedirectorytrustdomain-150929080057-lva1-app6891-thumbnail.jpg?width=120&height=120&fit=bounds" /> -Install AD -Managing OU, Domain, Control Computers & User, - Join Trust Domain

Configure active directory & trust domain from Tola LENG

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0 Basic security & info /slideshow/basic-security-amp-info/53305952 basicsecurityinfo-150929034644-lva1-app6891
Basic Security @ Updates -Update manager -Enable automatic security updates(Update Setting) => Super windows => type the key word (System Setting) => @ Firewall -In Ubuntu all ports are block by default -Default firewall-ufw (turned off by default) +sudo ufw status +sudo ufw enable/disable -Firestarter for graphical interface (recommanded) +sudo apt-get install firestarter +Preferences @ User Accounts -User & Groups +Disable user guest -Do not use root user (Disable by default) +sudo passwd +sudo passwd -l root (disable/changed expiry password) -Use sudo instead of root (/etc/sudoers) +sudo visudo OR sudo gedit /etc/sudoers(To set the privilege user authorized) +sudo adduser tolaleng sudo -Deleting Users +sudo deluser canamall -Removing world readable permission to home directory +sudo chmod 0750 /home/username -Locking/Unlocking user +sudo passwd -l username (enable user expiry) +sudo passwd -u username (disable user expiry) -passwords +sudo chage canamall (Set the password expiration) +sudo chage-l canamall (show the password expiration) @ Antivirus -Clam TK (Under Accessories), other anti-virus @ Unistall Applications -Ubuntu Software Center-> Installed software section-> Select application and click remove @ Processes -To see processes +ps aux or top +system monitor(cacti, nagios,) - @ Logs -Some of logs + /var/log/messages : general log messages + /var/log/boot : system boot log + /var/log/debug/ : debugging log messages + /var/log/auth.log : user login and authentication logs + /var/log/daemon.log : running services such as squid,ntpd and other log message to this file + /var/log/kern.log : kernel log file -Viewing logs + tail, more, cat, less, grep + GNOME system log viewer @Firewall ufw => Security Host * Create Standard User and enable user passwd (complexity password, strong passwd, passwd expired, invalid day of passwd, Lock and Unlock user, disable user Guest, ) * Secure remote network and host -Telnet(Secure with the host and address connection) -SSH (Secure with the authentication encryption key) => Security Backup (Data Hosting) *Make a Full Backup of Your Machine -Aptik (backup application) -rsync (Remote synce) -Gsync (Remote) -Amanda -Rsnapshot ]]>
Basic Security @ Updates -Update manager -Enable automatic security updates(Update Setting) => Super windows => type the key word (System Setting) => @ Firewall -In Ubuntu all ports are block by default -Default firewall-ufw (turned off by default) +sudo ufw status +sudo ufw enable/disable -Firestarter for graphical interface (recommanded) +sudo apt-get install firestarter +Preferences @ User Accounts -User & Groups +Disable user guest -Do not use root user (Disable by default) +sudo passwd +sudo passwd -l root (disable/changed expiry password) -Use sudo instead of root (/etc/sudoers) +sudo visudo OR sudo gedit /etc/sudoers(To set the privilege user authorized) +sudo adduser tolaleng sudo -Deleting Users +sudo deluser canamall -Removing world readable permission to home directory +sudo chmod 0750 /home/username -Locking/Unlocking user +sudo passwd -l username (enable user expiry) +sudo passwd -u username (disable user expiry) -passwords +sudo chage canamall (Set the password expiration) +sudo chage-l canamall (show the password expiration) @ Antivirus -Clam TK (Under Accessories), other anti-virus @ Unistall Applications -Ubuntu Software Center-> Installed software section-> Select application and click remove @ Processes -To see processes +ps aux or top +system monitor(cacti, nagios,) - @ Logs -Some of logs + /var/log/messages : general log messages + /var/log/boot : system boot log + /var/log/debug/ : debugging log messages + /var/log/auth.log : user login and authentication logs + /var/log/daemon.log : running services such as squid,ntpd and other log message to this file + /var/log/kern.log : kernel log file -Viewing logs + tail, more, cat, less, grep + GNOME system log viewer @Firewall ufw => Security Host * Create Standard User and enable user passwd (complexity password, strong passwd, passwd expired, invalid day of passwd, Lock and Unlock user, disable user Guest, ) * Secure remote network and host -Telnet(Secure with the host and address connection) -SSH (Secure with the authentication encryption key) => Security Backup (Data Hosting) *Make a Full Backup of Your Machine -Aptik (backup application) -rsync (Remote synce) -Gsync (Remote) -Amanda -Rsnapshot ]]> Tue, 29 Sep 2015 03:46:44 GMT /slideshow/basic-security-amp-info/53305952 tolaleng@slideshare.net(tolaleng) Basic security & info tolaleng Basic Security @ Updates -Update manager -Enable automatic security updates(Update Setting) => Super windows => type the key word (System Setting) => @ Firewall -In Ubuntu all ports are block by default -Default firewall-ufw (turned off by default) +sudo ufw status +sudo ufw enable/disable -Firestarter for graphical interface (recommanded) +sudo apt-get install firestarter +Preferences @ User Accounts -User & Groups +Disable user guest -Do not use root user (Disable by default) +sudo passwd +sudo passwd -l root (disable/changed expiry password) -Use sudo instead of root (/etc/sudoers) +sudo visudo OR sudo gedit /etc/sudoers(To set the privilege user authorized) +sudo adduser tolaleng sudo -Deleting Users +sudo deluser canamall -Removing world readable permission to home directory +sudo chmod 0750 /home/username -Locking/Unlocking user +sudo passwd -l username (enable user expiry) +sudo passwd -u username (disable user expiry) -passwords +sudo chage canamall (Set the password expiration) +sudo chage-l canamall (show the password expiration) @ Antivirus -Clam TK (Under Accessories), other anti-virus @ Unistall Applications -Ubuntu Software Center-> Installed software section-> Select application and click remove @ Processes -To see processes +ps aux or top +system monitor(cacti, nagios,) - @ Logs -Some of logs + /var/log/messages : general log messages + /var/log/boot : system boot log + /var/log/debug/ : debugging log messages + /var/log/auth.log : user login and authentication logs + /var/log/daemon.log : running services such as squid,ntpd and other log message to this file + /var/log/kern.log : kernel log file -Viewing logs + tail, more, cat, less, grep + GNOME system log viewer @Firewall ufw => Security Host * Create Standard User and enable user passwd (complexity password, strong passwd, passwd expired, invalid day of passwd, Lock and Unlock user, disable user Guest, ) * Secure remote network and host -Telnet(Secure with the host and address connection) -SSH (Secure with the authentication encryption key) => Security Backup (Data Hosting) *Make a Full Backup of Your Machine -Aptik (backup application) -rsync (Remote synce) -Gsync (Remote) -Amanda -Rsnapshot <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/basicsecurityinfo-150929034644-lva1-app6891-thumbnail.jpg?width=120&height=120&fit=bounds" /> Basic Security @ Updates -Update manager -Enable automatic security updates(Update Setting) => Super windows => type the key word (System Setting) => @ Firewall -In Ubuntu all ports are block by default -Default firewall-ufw (turned off by default) +sudo ufw status +sudo ufw enable/disable -Firestarter for graphical interface (recommanded) +sudo apt-get install firestarter +Preferences @ User Accounts -User & Groups +Disable user guest -Do not use root user (Disable by default) +sudo passwd +sudo passwd -l root (disable/changed expiry password) -Use sudo instead of root (/etc/sudoers) +sudo visudo OR sudo gedit /etc/sudoers(To set the privilege user authorized) +sudo adduser tolaleng sudo -Deleting Users +sudo deluser canamall -Removing world readable permission to home directory +sudo chmod 0750 /home/username -Locking/Unlocking user +sudo passwd -l username (enable user expiry) +sudo passwd -u username (disable user expiry) -passwords +sudo chage canamall (Set the password expiration) +sudo chage-l canamall (show the password expiration) @ Antivirus -Clam TK (Under Accessories), other anti-virus @ Unistall Applications -Ubuntu Software Center-> Installed software section-> Select application and click remove @ Processes -To see processes +ps aux or top +system monitor(cacti, nagios,) - @ Logs -Some of logs + /var/log/messages : general log messages + /var/log/boot : system boot log + /var/log/debug/ : debugging log messages + /var/log/auth.log : user login and authentication logs + /var/log/daemon.log : running services such as squid,ntpd and other log message to this file + /var/log/kern.log : kernel log file -Viewing logs + tail, more, cat, less, grep + GNOME system log viewer @Firewall ufw => Security Host * Create Standard User and enable user passwd (complexity password, strong passwd, passwd expired, invalid day of passwd, Lock and Unlock user, disable user Guest, ) * Secure remote network and host -Telnet(Secure with the host and address connection) -SSH (Secure with the authentication encryption key) => Security Backup (Data Hosting) *Make a Full Backup of Your Machine -Aptik (backup application) -rsync (Remote synce) -Gsync (Remote) -Amanda -Rsnapshot

Basic security & info from Tola LENG

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0 How to configure IPA-Server & Client-Centos 7 /slideshow/how-to-configure-ipaserver-clientcentos-7/51123257 d6d13f0b-5006-45fd-a777-fe3d897a7b56-150731021054-lva1-app6891
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]]> Fri, 31 Jul 2015 02:10:54 GMT /slideshow/how-to-configure-ipaserver-clientcentos-7/51123257 tolaleng@slideshare.net(tolaleng) How to configure IPA-Server & Client-Centos 7 tolaleng <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/d6d13f0b-5006-45fd-a777-fe3d897a7b56-150731021054-lva1-app6891-thumbnail.jpg?width=120&height=120&fit=bounds" />

How to configure IPA-Server & Client-Centos 7 from Tola LENG

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0 Configure Webserver & SSL secure & redirect in SuSE Linux Enterprise /slideshow/configure-webserver-ssl-secure-redirect-in-suse-linux-enterprise/47540637 tola-150428212128-conversion-gate02
In this chapter you will be able: -How to install webserver in suse linux server -How to configure webserver -How to hosting website and web application -How to configure secure connection (SSL, Redirect)]]>
In this chapter you will be able: -How to install webserver in suse linux server -How to configure webserver -How to hosting website and web application -How to configure secure connection (SSL, Redirect)]]> Tue, 28 Apr 2015 21:21:28 GMT /slideshow/configure-webserver-ssl-secure-redirect-in-suse-linux-enterprise/47540637 tolaleng@slideshare.net(tolaleng) Configure Webserver & SSL secure & redirect in SuSE Linux Enterprise tolaleng In this chapter you will be able: -How to install webserver in suse linux server -How to configure webserver -How to hosting website and web application -How to configure secure connection (SSL, Redirect) <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/tola-150428212128-conversion-gate02-thumbnail.jpg?width=120&height=120&fit=bounds" /> In this chapter you will be able: -How to install webserver in suse linux server -How to configure webserver -How to hosting website and web application -How to configure secure connection (SSL, Redirect)

Configure Webserver & SSL secure & redirect in SuSE Linux Enterprise from Tola LENG

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0 Configure proxy firewall on SuSE Linux Enterprise Server 11 /slideshow/configure-proxy-firewall-on-suse-linux-enterprise-server-11/47494187 tola-150428002817-conversion-gate01
In this practice you will be able: -How to install and configure the iptables and proxy firewall when we want to block the packet. -How to allow or deny the services or packet when the client access to the Internet.]]>
In this practice you will be able: -How to install and configure the iptables and proxy firewall when we want to block the packet. -How to allow or deny the services or packet when the client access to the Internet.]]> Tue, 28 Apr 2015 00:28:17 GMT /slideshow/configure-proxy-firewall-on-suse-linux-enterprise-server-11/47494187 tolaleng@slideshare.net(tolaleng) Configure proxy firewall on SuSE Linux Enterprise Server 11 tolaleng In this practice you will be able: -How to install and configure the iptables and proxy firewall when we want to block the packet. -How to allow or deny the services or packet when the client access to the Internet. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/tola-150428002817-conversion-gate01-thumbnail.jpg?width=120&height=120&fit=bounds" /> In this practice you will be able: -How to install and configure the iptables and proxy firewall when we want to block the packet. -How to allow or deny the services or packet when the client access to the Internet.

Configure proxy firewall on SuSE Linux Enterprise Server 11 from Tola LENG

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0 Configure Proxy and Firewall (Iptables) /slideshow/configur-47493951/47493951 tola-150428001951-conversion-gate01
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]]> Tue, 28 Apr 2015 00:19:51 GMT /slideshow/configur-47493951/47493951 tolaleng@slideshare.net(tolaleng) Configure Proxy and Firewall (Iptables) tolaleng <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/tola-150428001951-conversion-gate01-thumbnail.jpg?width=120&height=120&fit=bounds" />

Configure Proxy and Firewall (Iptables) from Tola LENG

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0 Configure DHCP Server and DHCP-Relay /slideshow/configure-dhcp-server-and-dhcprelay/42174005 tola-141129225523-conversion-gate01
-Configure DHCP (Create LAN Server and LAN Client) on Windows Server 2008R2 -Configure Relay on SuSE Linux Enterprise Server 11 -Allow Client Use DHCP IP for each LAN]]>
-Configure DHCP (Create LAN Server and LAN Client) on Windows Server 2008R2 -Configure Relay on SuSE Linux Enterprise Server 11 -Allow Client Use DHCP IP for each LAN]]> Sat, 29 Nov 2014 22:55:23 GMT /slideshow/configure-dhcp-server-and-dhcprelay/42174005 tolaleng@slideshare.net(tolaleng) Configure DHCP Server and DHCP-Relay tolaleng -Configure DHCP (Create LAN Server and LAN Client) on Windows Server 2008R2 -Configure Relay on SuSE Linux Enterprise Server 11 -Allow Client Use DHCP IP for each LAN <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/tola-141129225523-conversion-gate01-thumbnail.jpg?width=120&height=120&fit=bounds" /> -Configure DHCP (Create LAN Server and LAN Client) on Windows Server 2008R2 -Configure Relay on SuSE Linux Enterprise Server 11 -Allow Client Use DHCP IP for each LAN

Configure DHCP Server and DHCP-Relay from Tola LENG

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0 https://cdn.slidesharecdn.com/profile-photo-tolaleng-48x48.jpg?cb=1671097365 I am a Linux and F.O.S.S enthusiast, experience on Cloud, System architect, Infrastructure, and work as DevOps Engineer. Founder of Linux Cambodia. I love working with computers and strongly believe in sharing knowledge. Thank you for reading my bio page. Feel Free to get in touch with me. I am always open to discussing new projects, creative ideas or opportunities to be part of your visions. Masterdemy.com https://cdn.slidesharecdn.com/ss_thumbnails/choosingalinuxdistro-200102084210-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/the-linux-command-cheat-sheet/214171946 The Linux Command Chea... https://cdn.slidesharecdn.com/ss_thumbnails/natola-161125173036-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/system-engineer-openldap-and-samba-server/69532361 System Engineer: OpenL... https://cdn.slidesharecdn.com/ss_thumbnails/tola-160912133523-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/tolaleng-mail-server-sqmail-amp-rcmailq5/65934732 Tola.leng mail server ...