CNM Campus Farm

CNM Campus Farm (hereinafter, the Farm) is the server cluster that supports CNM Cert, CNM Page, and CNM Wiki. These three CNM apps belong to CNM Campus. All of them use MariaDB as their database management system; server databases are synchronized via MariaDB Galera Cluster.

While being a part of CNM Farms, the Server utilizes one DigitalOcean droplet, which is located at the 159.89.230.212 IP address. CNMCyber Team utilizes two more servers that are similar to the Servers. One of them is called CNM Lab Farm; it hosts CNM Next Apps used for experiential learning. Another is called CNM HandsOn Farm; it hosts CNM HandsOn Apps used for hands-on training.

DNS zone

cnmcyber.com35 a / 1 mX / 3 nS / 1 sOA / 1 tXT (NS: digitalocean.com)

TXT mail.next.cnmcyber.com returns v=spf1 +a +mx -all MX mail.next.cnmcyber.com mail handled by mail.next.cnmcyber.com. A opplet.handson.cnmcyber.com directs to 159.65.220.3 A cabin.cnmcyber.com directs to 159.89.93.1 A talk.handson.cnmcyber.com directs to 159.65.220.3 A venture.handson.cnmcyber.com directs to 159.65.220.3 A linkup.handson.cnmcyber.com directs to 159.65.220.3 A lab.handson.cnmcyber.com directs to 159.65.220.3 A mail.handson.cnmcyber.com directs to 159.65.220.3 A cert.handson.cnmcyber.com directs to 159.65.220.3 A wiki.handson.cnmcyber.com directs to 159.65.220.3 A page.handson.cnmcyber.com directs to 159.65.220.3 A tube.handson.cnmcyber.com directs to 159.65.220.3 A social.handson.cnmcyber.com directs to 159.65.220.3 A handson.cnmcyber.com directs to 165.22.107.127 A social.next.cnmcyber.com directs to 167.71.244.79 A tube.next.cnmcyber.com directs to 167.71.244.79 A page.next.cnmcyber.com directs to 167.71.244.79 A wiki.next.cnmcyber.com directs to 167.71.244.79 A cert.next.cnmcyber.com directs to 167.71.244.79 A mail.next.cnmcyber.com directs to 164.68.97.65 A lab.next.cnmcyber.com directs to 167.71.244.79 A linkup.next.cnmcyber.com directs to 167.71.244.79 A venture.next.cnmcyber.com directs to 167.71.244.79 A talk.next.cnmcyber.com directs to 167.71.244.79 A next.cnmcyber.com directs to 167.71.244.79 A cnmcyber.com directs to 159.89.230.212 A talk.cnmcyber.com directs to 159.89.230.212 A venture.cnmcyber.com directs to 159.89.230.212 A linkup.cnmcyber.com directs to 159.89.230.212 A lab.cnmcyber.com directs to 159.89.230.212 A mail.cnmcyber.com directs to 159.89.230.212 A cert.cnmcyber.com directs to 159.89.230.212 A wiki.cnmcyber.com directs to 159.89.230.212 A page.cnmcyber.com directs to 159.89.230.212 A tube.cnmcyber.com directs to 159.89.230.212 A social.cnmcyber.com directs to 159.89.230.212

friendsofcnm.com 1 a / 1 cNAME / 3 nS / 1 sOA (NS: digitalocean.com)

CNAME www.friendsofcnm.com is an alias of friendsofcnm.com. A friendsofcnm.com directs to 159.89.230.212

worldopp.com 1 a / 1 cNAME / 3 nS / 1 sOA (NS: digitalocean.com)

CNAME www.worldopp.com is an alias of worldopp.com. A worldopp.com directs to 159.89.230.212

fixett.com 1 a / 2 cNAME / 3 nS / 1 sOA (NS: digitalocean.com)

CNAME *.fixett.com is an alias of fixett.com. CNAME www.fixett.com is an alias of fixett.com. A fixett.com directs to 157.230.99.203

theeconomicgroup.com 1 a / 2 cNAME / 3 nS / 1 sOA (NS: digitalocean.com)

CNAME *.theeconomicgroup.com is an alias of theeconomicgroup.com. CNAME www.theeconomicgroup.com is an alias of theeconomicgroup.com. A theeconomicgroup.com directs to 45.55.71.142

opplet.net 4 a / 1 cNAME / 1 mX / 3 nS / 1 sOA / 3 tXT (NS: digitalocean.com)

A id.opplet.net directs to 88.99.214.92 TXT mail._domainkey.opplet.net returns v=DKIM1;t=s;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDBMiuIJQQPJ6TYbhMDwGRcaFL9GKyg7ocjoTQShpkWF6pkdS9OleMJBbk1wvFpDM/ayawxXyP7JUbdjw/TcXM/TmWQ+ZbjlPfoLtvqkuWw2iPKFlNzor/K5QZFI8MwZfh3yAdJS+8w/whXVZaq+enF+CQSzqgXFX0QBn6c/7sE+QIDAQAB TXT _dmarc.opplet.net returns v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:postmaster@opplet.net MX opplet.net mail handled by mail.opplet.net. A *.opplet.net directs to 157.230.99.203 A redmine.opplet.net directs to 159.89.93.1 CNAME www.opplet.net is an alias of opplet.net. TXT opplet.net returns v=spf1 a mx ip4:157.230.99.203 ~all A opplet.net directs to 159.89.93.1

opplet.com 1 a / 2 cNAME / 1 mX / 3 nS / 1 sOA (NS: digitalocean.com)

CNAME *.opplet.com is an alias of opplet.com. CNAME www.opplet.com is an alias of opplet.com. MX opplet.com mail handled by opplet.com. A opplet.com directs to 159.89.230.212

careerprise.com 5 a / 5 cNAME / 3 nS / 1 sOA (NS: digitalocean.com)

CNAME www.opplet.careerprise.com is an alias of opplet.careerprise.com. A opplet.careerprise.com directs to 159.89.93.1 CNAME www.campus.careerprise.com is an alias of campus.careerprise.com. CNAME www.dev.careerprise.com is an alias of dev.careerprise.com. CNAME www.wiki.careerprise.com is an alias of wiki.careerprise.com. A dev.careerprise.com directs to 159.89.93.1 A campus.careerprise.com directs to 159.89.93.1 A wiki.careerprise.com directs to 159.89.93.1 CNAME www.careerprise.com is an alias of careerprise.com. A careerprise.com directs to 159.89.93.1

bskol.com 1 a / 3 nS / 1 sOA (NS: digitalocean.com)

A bskol.com directs to 159.89.93.1

Legacy

Currently, this Farm is based on four virtual private servers (VPSes; hereinafter, the Nodes).

cnmcyber #53

• page.cnmcyber.com (wp, empty)
• pravka.bskol.com (wiki, rus/eng)
• wiki.cnmcyber.com (wiki, rus/eng, 53/234 galera)
• pravka.idosvid.com (wiki, ukr)
• svazka.bskol.com (SuiteCRM)
• ucebka.bskol.com (moodle, rus)
• cert.cnmcyber.com (moodle, eng)
• ucebka.idosvid.com (moodle, ukr)
• wordpress.bskol.com (wp, vsemka copy)
• worldopp.com (wp, kava, captcha?)
• educaship.com (wp, empty)
• next.bskol.com (NextCloud)
• setka.bskol.com (humhub)
• vsemka.com (wp, vsemka)
• tube.cnmcyber.com (AVideo?)
• cnmcyber.com (wiki, rus/eng)

Next #234

• opplet.friendsofcnm.com (opplet.net copy?)
• theeconomicgroup.com (html, website dev offer)
• theeconomicgroup.org (odoo, empty -- delete?)
• vebka.theeconomicgroup.com (wp/elementor, bskol)
• wiki.friendsofcnm.com (wiki, eng/rus, 53/234 galera)

Employ #9-106

• jitsi.employableu.com
• mail.bskol.com
• mail.cnmcyber.com
• repo.employableu.com (GitLab)

CO #206

• HA Proxy

Security

TLS

Main wikipage: TLS

PHP

Main wikipage: PHP security

PHP security is needed for pretty much any PHP environment; it is not necessarily specific to the App.

LocalSettings.php usually contains sensitive data such as database logins. This data should never be revealed to the public! Due to a security breach somewhere on the server, it might happen that other users are able to view the contents of files. In order to improve security of your data, you should set UNIX permissions for this file accordingly: The webserver user must have access to this file. If this is the same account, who is the owner of the file, then you can set permissions to 600. Sometimes, the webserver user is not the file owner, but they are in the owner's UNIX user group. In this case, permissions of 640 should be fine. For improved security you should narrow permissions down as far as possible.

Additionally, you can create a MySQL user, who is restricted to only the database used by the wiki and provide this user's credentials in LocalSettings.php. Also you can configure your database server to only accept connections from localhost - this should prevent access from outside in case of leaked credentials.

Features

DNS entry point

load balancer on a public web address; high availability functionality is based on HAProxy.

Syncronization

synchronization of resources of common individual nodes, at least databases.

Security

including firewalls

Backup and recovery

One Node is connected to additional storage, which is supposed to be converted to NAS.

Development

Development of the Farm occurs under the HAProxy for CNM Farms project.