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− | == General Information ==
| + | Einstein is currently a virtual machine running on [[Gourd]]. Go [[old_einstein|here]] for information about the old Einstein hardware. |
− | Einstein is the primary server, and hosts services for [[LDAP]], NFS for [[Automount|home directories]], [[E-mail]], and the [[Web Servers|website]]. | |
| | | |
− | Hostnames: <code>einstein.unh.edu</code>, <code>einstein.farm.physics.unh.edu</code>
| + | =Virtual Hardware= |
| | | |
− | == Hardware Information ==
| + | *Memory: 2 GB |
| + | *Hard Disk: 20 GB |
| + | *Swap Disk: 4 GB |
| + | *Network 1 (eth0): Farm-Bridge |
| + | *Network 2 (eth1): UNH-Bridge |
| + | *SCSI Controller: LSI Logic |
| | | |
− | Motherboard: SuperMicro H8SMU
| + | =Network Settings= |
− | SAS Backplane: SAS825TQ
| |
| | | |
− | == Special Considerations for Einstein (Historical) ==
| + | *IP Address farm (eth0): 10.0.0.248 |
− | This information no longer applies and is here for historical reasons. We no longer use amavisd, and so these instructions are not useful.
| + | *IP Address UNH (eth1): 132.177.88.52 |
| | | |
| + | =Software and Services= |
| | | |
− | Einstein is our mail server. That means it runs '''"amavisd"''' (a virus scanner) and '''"spamassasin"''' a spam filter. Both these codes have some issues with leaving junk around, slowly causing the "/" file system to fill up. When that happens, einstein stops functioning.
| + | ==IPTables== |
| | | |
− | Some cleanup can be done as follows:
| + | Einstein uses the standard NPG [[iptables]] firewall. It allows ssh, LDAP, imap, smtp, and http connections. |
− | * stop amavisd and spamassasin:
| |
− | service amavisd stop
| |
− | service spamassasin stop
| |
− | * clean out some of their junk:
| |
− | rm /var/amavis/.razor/razor-agent.log
| |
− | touch /var/amavis/.razor/razor-agent.log
| |
− | chown amavis:amavis /var/amavis/.razor/razor-agent.log
| |
− | chmod o-r /var/amavis/.razor/razor-agent.log
| |
− | rm -f /var/virusmails/* # (Sometimes there are so many, you have to delete in "chunks")
| |
− | rm -rf /tmp
| |
− | * start up the mail stuff again.
| |
− | service amavisd start
| |
− | service spamassasin start
| |
| | | |
− | There may be other areas that can be clean up, as in all the archived mail from "mailman"? But at least this list will let einstein function again.
| + | ==LDAP== |
| | | |
− | == Network Configuration ==
| + | Einstein is our [[LDAP]] server. It provides user authentication among other useful services. LDAP configuration is located in /etc/openldap, and the LDAP database is stored in /var/lib/ldap. |
− | Currently has ethernet cable to switch for local (farm) connection, and an ethernet cable to the wall for unh connection.
| |
| | | |
− | == Access Configuration == | + | ==Mail== |
− | === /etc/security/access.conf ===
| |
− | <pre>
| |
− | </pre>
| |
− | Any valid user can log into einstein from other machine on the Internet.
| |
| | | |
| + | Einstein is our [[Email]] server. The mail itself is stored in a raid1 volume on [[Gourd]], and Einstein mounts the NFS share to /var/spool/mail. |
| | | |
| + | Einstein should mount the NFS share at boot, but note that since it mounts by hostname you should make sure that DNS is accessible before starting the Einstein VM. Otherwise mail won't be mounted properly when the system boots. If for some reason DNS is unavailable you can manually mount the NFS share in /mail using gourd's IP address directly. |
| | | |
− | == SNMP Configuration == | + | ===Webmail=== |
− | === /etc/snmp/snmpd.conf === | |
− | <pre>###############################################################################
| |
− | #
| |
− | # snmpd.conf:
| |
− | # An example configuration file for configuring the ucd-snmp snmpd agent.
| |
− | #
| |
− | ###############################################################################
| |
− | #
| |
− | # This file is intended to only be as a starting point. Many more
| |
− | # configuration directives exist than are mentioned in this file. For
| |
− | # full details, see the snmpd.conf(5) manual page.
| |
− | #
| |
− | # All lines beginning with a '#' are comments and are intended for you
| |
− | # to read. All other lines are configuration commands for the agent.
| |
| | | |
− | ###############################################################################
| + | Einstein provides web-based access to e-mail using [[Squirrelmail]]. You can access it at [https://einstein.unh.edu/mail]. |
− | # Access Control
| |
− | ###############################################################################
| |
| | | |
− | # As shipped, the snmpd demon will only respond to queries on the
| + | See also: [[Gourd/Einstein Migration Plan]] |
− | # system mib group until this file is replaced or modified for
| |
− | # security purposes. Examples are shown below about how to increase the
| |
− | # level of access.
| |
| | | |
− | # By far, the most common question I get about the agent is "why won't
| + | = Upgrade from RHEL5 to Centos7 = |
− | # it work?", when really it should be "how do I configure the agent to
| |
− | # allow me to access it?"
| |
− | #
| |
− | # By default, the agent responds to the "public" community for read
| |
− | # only access, if run out of the box without any configuration file in
| |
− | # place. The following examples show you other ways of configuring
| |
− | # the agent so that you can change the community names, and give
| |
− | # yourself write access to the mib tree as well.
| |
− | #
| |
− | # For more information, read the FAQ as well as the snmpd.conf(5)
| |
− | # manual page.
| |
| | | |
− | ## sec.name source community
| + | OK, this has not been fun, and taken way too long. |
− | com2sec local localhost NPG
| |
− | com2sec farm 10.0.0.0/24 NPG
| |
| | | |
− | ## group.name sec.model sec.name
| + | == Status == |
− | #group MyRWGroup any local
| |
− | #group MyROGroup any mynetwork
| |
− | ##
| |
− | #group MyRWGroup any otherv3user
| |
− | ##...
| |
− | group MyRWGroup v1 local
| |
− | group MyRWGroup v2c local
| |
− | group MyROGroup v1 farm
| |
− | group MyROGroup v2c farm
| |
| | | |
− | ## incl/excl subtree mask
| + | We have a running Centos7 Einstein2 system. |
− | view all included .1 80
| + | * It has Named installed and running as a slave to Jalapeño. |
| + | * Slapd is installed. Still working on it. |
| | | |
− | ## -or just the mib2 tree-
| + | === LDAP === |
| | | |
− | #view mib2 included .iso.org.dod.internet.mgmt.mib-2 fc
| + | Follow the installation instruction from https://www.certdepot.net/rhel7-configure-ldap-directory-service-user-connection/ |
| | | |
| + | Noted differences: |
| + | * Install extra schema: |
| + | ** core.ldif |
| + | ** inetorgperson.ldif |
| + | ** wget https://launchpadlibrarian.net/55451730/autofs.ldif |
| + | ** /usr/share/doc/samba-4.4.4/LDAP/samba.ldif |
| + | * for each do: ldapadd -Y EXTERNAL -H ldapi:/// -D "cn=config" -f <file> |
| + | * (Left out misc.schema and RADIUS-LDAPv3.schema ) |
| | | |
− | # context sec.model sec.level prefix read write notif
| + | ==== Certificate ==== |
− | access MyROGroup "" any noauth exact all none none
| |
− | #access MyRWGroup "" any noauth exact all all all
| |
| | | |
| + | You need to configure the TLS certificate for the system. To create a new one (see: [https://www.lisenet.com/2016/openldap-with-ssl-and-nfs-for-user-home-directories-on-centos-7 certs creating]) : |
| + | cd /etc/pki/tls/private |
| + | DOMAIN=einstein.unh.edu |
| + | openssl genrsa -out "$DOMAIN".key 2048 && chmod 0600 "$DOMAIN".key |
| + | openssl req -new -sha256 -key "$DOMAIN".key -out "$DOMAIN".csr |
| + | openssl x509 -req -days 3650 -sha256 -in "$DOMAIN".csr -signkey "$DOMAIN".key -out "$DOMAIN".crt |
| + | openssl pkcs8 -topk8 -inform pem -in "$DOMAIN".key -outform pem -nocrypt -out "$DOMAIN".pem |
| + | chmod 640 "$DOMAIN".key "$DOMAIN".pem |
| + | chgrp ldap "$DOMAIN".key "$DOMAIN".pem |
| + | mv "$DOMAIN".crt ../certs/ |
| + | cd ../certs |
| + | ln -s ${DOMAIN}.crt `/etc/pki/tls/misc/c_hash ${DOMAIN}.crt | cut -d' ' -f1` # Set a link to the hash of the cert. |
| | | |
− | ###############################################################################
| + | ==== Install Certificate ==== |
− | # Sample configuration to make net-snmpd RFC 1213.
| |
− | # Unfortunately v1 and v2c don't allow any user based authentification, so
| |
− | # opening up the default config is not an option from a security point.
| |
− | #
| |
− | # WARNING: If you uncomment the following lines you allow write access to your
| |
− | # snmpd daemon from any source! To avoid this use different names for your
| |
− | # community or split out the write access to a different community and
| |
− | # restrict it to your local network.
| |
− | # Also remember to comment the syslocation and syscontact parameters later as
| |
− | # otherwise they are still read only (see FAQ for net-snmp).
| |
− | #
| |
| | | |
− | # First, map the community name "public" into a "security name"
| + | Edit an ldif file: |
− | # sec.name source community
| |
− | #com2sec notConfigUser default public
| |
| | | |
− | # Second, map the security name into a group name:
| + | dn: cn=config |
− | # groupName securityModel securityName
| + | changetype: modify |
− | #group notConfigGroup v1 notConfigUser
| + | replace: olcTLSCACertificatePath |
− | #group notConfigGroup v2c notConfigUser
| + | olcTLSCACertificatePath: /etc/pki/tls/certs |
| + | - |
| + | replace: olcTLSCACertificateFile |
| + | olcTLSCACertificateFile: /etc/pki/tls/certs/ca-bundle.crt |
| + | - |
| + | replace: olcTLSCertificateFile |
| + | olcTLSCertificateFile: /etc/pki/tls/certs/einstein.unh.edu.crt |
| + | - |
| + | replace: olcTLSCertificateKeyFile |
| + | olcTLSCertificateKeyFile: /etc/pki/tls/private/einstein.unh.edu.pem |
| | | |
− | # Third, create a view for us to let the group have rights to:
| + | To make a change to the ldap server: |
− | # Open up the whole tree for ro, make the RFC 1213 required ones rw.
| + | ldapmodify -Y EXTERNAL -H ldapi:/// -f /etc/openldap/certificate_change_localhost.ldif |
− | # name incl/excl subtree mask(optional)
| |
− | #view roview included .1
| |
− | #view rwview included system.sysContact
| |
− | #view rwview included system.sysName
| |
− | #view rwview included system.sysLocation
| |
− | #view rwview included interfaces.ifTable.ifEntry.ifAdminStatus
| |
− | #view rwview included at.atTable.atEntry.atPhysAddress
| |
− | #view rwview included at.atTable.atEntry.atNetAddress
| |
− | #view rwview included ip.ipForwarding
| |
− | #view rwview included ip.ipDefaultTTL
| |
− | #view rwview included ip.ipRouteTable.ipRouteEntry.ipRouteDest
| |
− | #view rwview included ip.ipRouteTable.ipRouteEntry.ipRouteIfIndex
| |
− | #view rwview included ip.ipRouteTable.ipRouteEntry.ipRouteMetric1
| |
− | #view rwview included ip.ipRouteTable.ipRouteEntry.ipRouteMetric2
| |
− | #view rwview included ip.ipRouteTable.ipRouteEntry.ipRouteMetric3
| |
− | #view rwview included ip.ipRouteTable.ipRouteEntry.ipRouteMetric4
| |
− | #view rwview included ip.ipRouteTable.ipRouteEntry.ipRouteType
| |
− | #view rwview included ip.ipRouteTable.ipRouteEntry.ipRouteAge
| |
− | #view rwview included ip.ipRouteTable.ipRouteEntry.ipRouteMask
| |
− | #view rwview included ip.ipRouteTable.ipRouteEntry.ipRouteMetric5
| |
− | #view rwview included ip.ipNetToMediaTable.ipNetToMediaEntry.ipNetToMediaIfIndex
| |
− | #view rwview included ip.ipNetToMediaTable.ipNetToMediaEntry.ipNetToMediaPhysAddress
| |
− | #view rwview included ip.ipNetToMediaTable.ipNetToMediaEntry.ipNetToMediaNetAddress
| |
− | #view rwview included ip.ipNetToMediaTable.ipNetToMediaEntry.ipNetToMediaType
| |
− | #view rwview included tcp.tcpConnTable.tcpConnEntry.tcpConnState
| |
− | #view rwview included egp.egpNeighTable.egpNeighEntry.egpNeighEventTrigger
| |
− | #view rwview included snmp.snmpEnableAuthenTraps
| |
| | | |
− | # Finally, grant the group read-only access to the systemview view.
| + | Note that the hostname needs to be correct, so you probably need to set it in /etc/hosts i.e. 127.0.0.1 einstein localhost |
− | # group context sec.model sec.level prefix read write notif
| |
− | #access notConfigGroup "" any noauth exact roview rwview none
| |
| | | |
| + | Test, add -d1 -d2 or -d3 for increased debug output: |
| + | ldapsearch -x -ZZ |
| + | ldapsearch -x -H ldaps:// |
| | | |
| + | Make sure that the "authconfig" line from [[Upgrading to Centos 7]] is executed and restart sssd |
| | | |
− | ###############################################################################
| + | Import Old Database: |
− | # System contact information
| + | * Dump on old einstein, see /var/lib/ldap/dump.ldif created by /usr/local/bin/ldap_dump.sh |
− | #
| + | * Import with ldapadd -x -w 'password' -D cn=root,dc=physics,dc=unh,dc=edu -f /tmp/dump.ldif |
| | | |
− | # It is also possible to set the sysContact and sysLocation system
| + | Allow access over SSL: |
− | # variables through the snmpd.conf file:
| + | * edit: /etc/sysconfig/slapd |
| + | * change: SLAPD_URLS="ldapi:/// ldap:/// ldaps:///" |
| + | * There is still the issue that the TLS is for "einstein" while the testing node is not called "einstein" |
| | | |
− | syslocation Durham, NH, USA, University of New Hampshire, DeMeritt Hall
| + | Setup /etc/openssl/ldap.conf: |
− | syscontact NPG Admins <npg-admins@einstein.unh.edu>
| + | * echo "tls_reqcert allow" >> /etc/nslcd.conf |
| + | ** Note that this makes it so that the TLS is not enforced. |
| | | |
− | # Example output of snmpwalk:
| + | ==== Allow passwd to work ==== |
− | # % snmpwalk -v 1 localhost -c public system
| |
− | # system.sysDescr.0 = "SunOS name sun4c"
| |
− | # system.sysObjectID.0 = OID: enterprises.ucdavis.ucdSnmpAgent.sunos4
| |
− | # system.sysUpTime.0 = Timeticks: (595637548) 68 days, 22:32:55
| |
− | # system.sysContact.0 = "Me <me@somewhere.org>"
| |
− | # system.sysName.0 = "name"
| |
− | # system.sysLocation.0 = "Right here, right now."
| |
− | # system.sysServices.0 = 72
| |
| | | |
| + | This was darn tricky to find out how to do. The issue is properly modifying, or adding olcAccess to the database. The following does the trick. Create a file change_password_access_policy.ldif in /etc/openldap |
| | | |
− | # -----------------------------------------------------------------------------
| + | dn: olcDatabase={2}hdb,cn=config |
| + | add: olcAccess |
| + | olcAccess: {0}to attrs=userPassword |
| + | by dn="cn=root,dc=physics,dc=unh,dc=edu" write |
| + | by anonymous auth |
| + | by self write |
| + | by * none |
| + | olcAccess: {1}to dn.base="" |
| + | by * read |
| + | olcAccess: {2}to * |
| + | by dn="cn=Manager,dc=tuxfixer,dc=com" write |
| + | by * read |
| | | |
| + | Then enter the info into LDAP: |
| | | |
− | ###############################################################################
| + | ldapmodify -Y EXTERNAL -H ldapi:/// -f /etc/openldap/change_password_access_policy.ldif |
− | # Process checks.
| |
− | #
| |
− | # The following are examples of how to use the agent to check for
| |
− | # processes running on the host. The syntax looks something like:
| |
− | #
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− | # proc NAME [MAX=0] [MIN=0]
| |
− | #
| |
− | # NAME: the name of the process to check for. It must match
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− | # exactly (ie, http will not find httpd processes).
| |
− | # MAX: the maximum number allowed to be running. Defaults to 0.
| |
− | # MIN: the minimum number to be running. Defaults to 0.
| |
| | | |
− | #
| + | The documentation for olcAccess is here [https://www.openldap.org/doc/admin24/access-control.html Access Control] |
− | # Examples (commented out by default):
| + | It appears that the entry for olcAccess: {0} gets encrypted. Weird, since I cannot find any documentation on that. |
− | #
| |
| | | |
− | # Make sure mountd is running
| + | = Other Tasks = |
− | #proc mountd
| |
| | | |
− | # Make sure there are no more than 4 ntalkds running, but 0 is ok too.
| + | Move the Mail configuration. See: [[E-mail]] |
− | #proc ntalkd 4
| |
| | | |
− | # Make sure at least one sendmail, but less than or equal to 10 are running.
| + | Move the SSH keys from the system. |
− | #proc sendmail 10 1
| |
| | | |
− | # A snmpwalk of the process mib tree would look something like this:
| + | Move the sudoers file. |
− | #
| |
− | # % snmpwalk -v 1 localhost -c public .1.3.6.1.4.1.2021.2
| |
− | # enterprises.ucdavis.procTable.prEntry.prIndex.1 = 1
| |
− | # enterprises.ucdavis.procTable.prEntry.prIndex.2 = 2
| |
− | # enterprises.ucdavis.procTable.prEntry.prIndex.3 = 3
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− | # enterprises.ucdavis.procTable.prEntry.prNames.1 = "mountd"
| |
− | # enterprises.ucdavis.procTable.prEntry.prNames.2 = "ntalkd"
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− | # enterprises.ucdavis.procTable.prEntry.prNames.3 = "sendmail"
| |
− | # enterprises.ucdavis.procTable.prEntry.prMin.1 = 0
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− | # enterprises.ucdavis.procTable.prEntry.prMin.2 = 0
| |
− | # enterprises.ucdavis.procTable.prEntry.prMin.3 = 1
| |
− | # enterprises.ucdavis.procTable.prEntry.prMax.1 = 0
| |
− | # enterprises.ucdavis.procTable.prEntry.prMax.2 = 4
| |
− | # enterprises.ucdavis.procTable.prEntry.prMax.3 = 10
| |
− | # enterprises.ucdavis.procTable.prEntry.prCount.1 = 0
| |
− | # enterprises.ucdavis.procTable.prEntry.prCount.2 = 0
| |
− | # enterprises.ucdavis.procTable.prEntry.prCount.3 = 1
| |
− | # enterprises.ucdavis.procTable.prEntry.prErrorFlag.1 = 1
| |
− | # enterprises.ucdavis.procTable.prEntry.prErrorFlag.2 = 0
| |
− | # enterprises.ucdavis.procTable.prEntry.prErrorFlag.3 = 0
| |
− | # enterprises.ucdavis.procTable.prEntry.prErrMessage.1 = "No mountd process running."
| |
− | # enterprises.ucdavis.procTable.prEntry.prErrMessage.2 = ""
| |
− | # enterprises.ucdavis.procTable.prEntry.prErrMessage.3 = ""
| |
− | # enterprises.ucdavis.procTable.prEntry.prErrFix.1 = 0
| |
− | # enterprises.ucdavis.procTable.prEntry.prErrFix.2 = 0
| |
− | # enterprises.ucdavis.procTable.prEntry.prErrFix.3 = 0
| |
− | #
| |
− | # Note that the errorFlag for mountd is set to 1 because one is not
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− | # running (in this case an rpc.mountd is, but thats not good enough),
| |
− | # and the ErrMessage tells you what's wrong. The configuration
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− | # imposed in the snmpd.conf file is also shown.
| |
− | #
| |
− | # Special Case: When the min and max numbers are both 0, it assumes
| |
− | # you want a max of infinity and a min of 1.
| |
− | #
| |
| | | |
− | | + | == TO DO == |
− | # -----------------------------------------------------------------------------
| |
− | | |
− | | |
− | ###############################################################################
| |
− | # Executables/scripts
| |
− | #
| |
− | | |
− | #
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− | # You can also have programs run by the agent that return a single
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− | # line of output and an exit code. Here are two examples.
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− | #
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− | # exec NAME PROGRAM [ARGS ...]
| |
− | #
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− | # NAME: A generic name.
| |
− | # PROGRAM: The program to run. Include the path!
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− | # ARGS: optional arguments to be passed to the program
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− | | |
− | # a simple hello world
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− | | |
− | #exec echotest /bin/echo hello world
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− | | |
− | # Run a shell script containing:
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− | #
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− | # #!/bin/sh
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− | # echo hello world
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− | # echo hi there
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− | # exit 35
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− | #
| |
− | # Note: this has been specifically commented out to prevent
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− | # accidental security holes due to someone else on your system writing
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− | # a /tmp/shtest before you do. Uncomment to use it.
| |
− | #
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− | #exec shelltest /bin/sh /tmp/shtest
| |
− | | |
− | # Then,
| |
− | # % snmpwalk -v 1 localhost -c public .1.3.6.1.4.1.2021.8
| |
− | # enterprises.ucdavis.extTable.extEntry.extIndex.1 = 1
| |
− | # enterprises.ucdavis.extTable.extEntry.extIndex.2 = 2
| |
− | # enterprises.ucdavis.extTable.extEntry.extNames.1 = "echotest"
| |
− | # enterprises.ucdavis.extTable.extEntry.extNames.2 = "shelltest"
| |
− | # enterprises.ucdavis.extTable.extEntry.extCommand.1 = "/bin/echo hello world"
| |
− | # enterprises.ucdavis.extTable.extEntry.extCommand.2 = "/bin/sh /tmp/shtest"
| |
− | # enterprises.ucdavis.extTable.extEntry.extResult.1 = 0
| |
− | # enterprises.ucdavis.extTable.extEntry.extResult.2 = 35
| |
− | # enterprises.ucdavis.extTable.extEntry.extOutput.1 = "hello world."
| |
− | # enterprises.ucdavis.extTable.extEntry.extOutput.2 = "hello world."
| |
− | # enterprises.ucdavis.extTable.extEntry.extErrFix.1 = 0
| |
− | # enterprises.ucdavis.extTable.extEntry.extErrFix.2 = 0
| |
− | | |
− | # Note that the second line of the /tmp/shtest shell script is cut
| |
− | # off. Also note that the exit status of 35 was returned.
| |
− | | |
− | # -----------------------------------------------------------------------------
| |
− | | |
− | | |
− | ###############################################################################
| |
− | # disk checks
| |
− | #
| |
− | | |
− | # The agent can check the amount of available disk space, and make
| |
− | # sure it is above a set limit.
| |
− | | |
− | # disk PATH [MIN=100000]
| |
− | #
| |
− | # PATH: mount path to the disk in question.
| |
− | # MIN: Disks with space below this value will have the Mib's errorFlag set.
| |
− | # Default value = 100000.
| |
− | | |
− | # Check the / partition and make sure it contains at least 10 megs.
| |
− | | |
− | disk / 10000
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− | disk /home 10000
| |
− | disk /var/lib/snmp/var_spool_imap 10000
| |
− | disk /var/lib/snmp/wheel 10000
| |
− | | |
− | # % snmpwalk -v 1 localhost -c public .1.3.6.1.4.1.2021.9
| |
− | # enterprises.ucdavis.diskTable.dskEntry.diskIndex.1 = 0
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− | # enterprises.ucdavis.diskTable.dskEntry.diskPath.1 = "/" Hex: 2F
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− | # enterprises.ucdavis.diskTable.dskEntry.diskDevice.1 = "/dev/dsk/c201d6s0"
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− | # enterprises.ucdavis.diskTable.dskEntry.diskMinimum.1 = 10000
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− | # enterprises.ucdavis.diskTable.dskEntry.diskTotal.1 = 837130
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− | # enterprises.ucdavis.diskTable.dskEntry.diskAvail.1 = 316325
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− | # enterprises.ucdavis.diskTable.dskEntry.diskUsed.1 = 437092
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− | # enterprises.ucdavis.diskTable.dskEntry.diskPercent.1 = 58
| |
− | # enterprises.ucdavis.diskTable.dskEntry.diskErrorFlag.1 = 0
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− | # enterprises.ucdavis.diskTable.dskEntry.diskErrorMsg.1 = ""
| |
− | | |
− | # -----------------------------------------------------------------------------
| |
− | | |
− | | |
− | ###############################################################################
| |
− | # load average checks
| |
− | #
| |
− | | |
− | # load [1MAX=12.0] [5MAX=12.0] [15MAX=12.0]
| |
− | #
| |
− | # 1MAX: If the 1 minute load average is above this limit at query
| |
− | # time, the errorFlag will be set.
| |
− | # 5MAX: Similar, but for 5 min average.
| |
− | # 15MAX: Similar, but for 15 min average.
| |
− | | |
− | # Check for loads:
| |
− | #load 12 14 14
| |
− | | |
− | # % snmpwalk -v 1 localhost -c public .1.3.6.1.4.1.2021.10
| |
− | # enterprises.ucdavis.loadTable.laEntry.loadaveIndex.1 = 1
| |
− | # enterprises.ucdavis.loadTable.laEntry.loadaveIndex.2 = 2
| |
− | # enterprises.ucdavis.loadTable.laEntry.loadaveIndex.3 = 3
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− | # enterprises.ucdavis.loadTable.laEntry.loadaveNames.1 = "Load-1"
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− | # enterprises.ucdavis.loadTable.laEntry.loadaveNames.2 = "Load-5"
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− | # enterprises.ucdavis.loadTable.laEntry.loadaveNames.3 = "Load-15"
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− | # enterprises.ucdavis.loadTable.laEntry.loadaveLoad.1 = "0.49" Hex: 30 2E 34 39
| |
− | # enterprises.ucdavis.loadTable.laEntry.loadaveLoad.2 = "0.31" Hex: 30 2E 33 31
| |
− | # enterprises.ucdavis.loadTable.laEntry.loadaveLoad.3 = "0.26" Hex: 30 2E 32 36
| |
− | # enterprises.ucdavis.loadTable.laEntry.loadaveConfig.1 = "12.00"
| |
− | # enterprises.ucdavis.loadTable.laEntry.loadaveConfig.2 = "14.00"
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− | # enterprises.ucdavis.loadTable.laEntry.loadaveConfig.3 = "14.00"
| |
− | # enterprises.ucdavis.loadTable.laEntry.loadaveErrorFlag.1 = 0
| |
− | # enterprises.ucdavis.loadTable.laEntry.loadaveErrorFlag.2 = 0
| |
− | # enterprises.ucdavis.loadTable.laEntry.loadaveErrorFlag.3 = 0
| |
− | # enterprises.ucdavis.loadTable.laEntry.loadaveErrMessage.1 = ""
| |
− | # enterprises.ucdavis.loadTable.laEntry.loadaveErrMessage.2 = ""
| |
− | # enterprises.ucdavis.loadTable.laEntry.loadaveErrMessage.3 = ""
| |
− | | |
− | # -----------------------------------------------------------------------------
| |
− | | |
− | | |
− | ###############################################################################
| |
− | # Extensible sections.
| |
− | #
| |
− | | |
− | # This alleviates the multiple line output problem found in the
| |
− | # previous executable mib by placing each mib in its own mib table:
| |
− | | |
− | # Run a shell script containing:
| |
− | #
| |
− | # #!/bin/sh
| |
− | # echo hello world
| |
− | # echo hi there
| |
− | # exit 35
| |
− | #
| |
− | # Note: this has been specifically commented out to prevent
| |
− | # accidental security holes due to someone else on your system writing
| |
− | # a /tmp/shtest before you do. Uncomment to use it.
| |
− | #
| |
− | # exec .1.3.6.1.4.1.2021.50 shelltest /bin/sh /tmp/shtest
| |
− | | |
− | # % snmpwalk -v 1 localhost -c public .1.3.6.1.4.1.2021.50
| |
− | # enterprises.ucdavis.50.1.1 = 1
| |
− | # enterprises.ucdavis.50.2.1 = "shelltest"
| |
− | # enterprises.ucdavis.50.3.1 = "/bin/sh /tmp/shtest"
| |
− | # enterprises.ucdavis.50.100.1 = 35
| |
− | # enterprises.ucdavis.50.101.1 = "hello world."
| |
− | # enterprises.ucdavis.50.101.2 = "hi there."
| |
− | # enterprises.ucdavis.50.102.1 = 0
| |
− | | |
− | # Now the Output has grown to two lines, and we can see the 'hi
| |
− | # there.' output as the second line from our shell script.
| |
− | #
| |
− | # Note that you must alter the mib.txt file to be correct if you want
| |
− | # the .50.* outputs above to change to reasonable text descriptions.
| |
− | | |
− | # Other ideas:
| |
− | #
| |
− | # exec .1.3.6.1.4.1.2021.51 ps /bin/ps
| |
− | # exec .1.3.6.1.4.1.2021.52 top /usr/local/bin/top
| |
− | # exec .1.3.6.1.4.1.2021.53 mailq /usr/bin/mailq
| |
− | | |
− | # -----------------------------------------------------------------------------
| |
− | | |
− | | |
− | ###############################################################################
| |
− | # Pass through control.
| |
− | #
| |
− | | |
− | # Usage:
| |
− | # pass MIBOID EXEC-COMMAND
| |
− | #
| |
− | # This will pass total control of the mib underneath the MIBOID
| |
− | # portion of the mib to the EXEC-COMMAND.
| |
− | # enterprises.ucdavis.50.100.1 = 35
| |
− | # enterprises.ucdavis.50.101.1 = "hello world."
| |
− | # enterprises.ucdavis.50.101.2 = "hi there."
| |
− | # enterprises.ucdavis.50.102.1 = 0
| |
− | | |
− | # Now the Output has grown to two lines, and we can see the 'hi
| |
− | # there.' output as the second line from our shell script.
| |
− | #
| |
− | # Note that you must alter the mib.txt file to be correct if you want
| |
− | # the .50.* outputs above to change to reasonable text descriptions.
| |
− | | |
− | # Other ideas:
| |
− | #
| |
− | # exec .1.3.6.1.4.1.2021.51 ps /bin/ps
| |
− | # exec .1.3.6.1.4.1.2021.52 top /usr/local/bin/top
| |
− | # exec .1.3.6.1.4.1.2021.53 mailq /usr/bin/mailq
| |
− | | |
− | # -----------------------------------------------------------------------------
| |
− | | |
− | | |
− | ###############################################################################
| |
− | # Pass through control.
| |
− | #
| |
− | | |
− | # Usage:
| |
− | # pass MIBOID EXEC-COMMAND
| |
− | #
| |
− | # This will pass total control of the mib underneath the MIBOID
| |
− | # portion of the mib to the EXEC-COMMAND.
| |
− | #
| |
− | # Note: You'll have to change the path of the passtest script to your
| |
− | # source directory or install it in the given location.
| |
− | #
| |
− | # Example: (see the script for details)
| |
− | # (commented out here since it requires that you place the
| |
− | # script in the right location. (its not installed by default))
| |
− | | |
− | # pass .1.3.6.1.4.1.2021.255 /bin/sh /usr/local/local/passtest
| |
− | | |
− | # % snmpwalk -v 1 localhost -c public .1.3.6.1.4.1.2021.255
| |
− | # enterprises.ucdavis.255.1 = "life the universe and everything"
| |
− | # enterprises.ucdavis.255.2.1 = 42
| |
− | # enterprises.ucdavis.255.2.2 = OID: 42.42.42
| |
− | # enterprises.ucdavis.255.3 = Timeticks: (363136200) 42 days, 0:42:42
| |
− | # enterprises.ucdavis.255.4 = IpAddress: 127.0.0.1
| |
− | # enterprises.ucdavis.255.5 = 42
| |
− | # enterprises.ucdavis.255.6 = Gauge: 42
| |
− | #
| |
− | # % snmpget -v 1 localhost public .1.3.6.1.4.1.2021.255.5
| |
− | # enterprises.ucdavis.255.5 = 42
| |
− | #
| |
− | # % snmpset -v 1 localhost public .1.3.6.1.4.1.2021.255.1 s "New string"
| |
− | # enterprises.ucdavis.255.1 = "New string"
| |
− | #
| |
− | | |
− | # For specific usage information, see the man/snmpd.conf.5 manual page
| |
− | # as well as the local/passtest script used in the above example.
| |
− | | |
− | # Added for support of bcm5820 cards.
| |
− | pass .1.3.6.1.4.1.4413.4.1 /usr/bin/ucd5820stat
| |
− | | |
− | ###############################################################################
| |
− | # Further Information
| |
− | #
| |
− | # See the snmpd.conf manual page, and the output of "snmpd -H".
| |
− | </pre>
| |