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List all UUIDs blkid

[root@eagle ~]# blkid /dev/sda8: LABEL="/usr" UUID="f9860684-4cda-4d98-89c0-9e09a0cf2dba" TYPE="ext3" SEC_TYPE="ext2" /dev/sda7: LABEL="/home" UUID="ccaf84dd-4fff-4615-9b9c-f7d448dd5937" TYPE="ext3" SEC_TYPE="ext2" /dev/sda6: LABEL="/tmp" UUID="5fcbd0b3-bf28-4be2-949d-34ca509b044a" TYPE="ext3" SEC_TYPE="ext2" /dev/sda5: TYPE="swap" LABEL="SWAP-sda5" /dev/sda3: LABEL="/" UUID="7425c29a-8146-4990-9a2a-fac831b5d7e2" TYPE="ext3" SEC_TYPE="ext2" /dev/sda1: LABEL="/boot1" UUID="fc33ba59-9e2b-4fcf-9e3d-2019e8fcf9fa" SEC_TYPE="ext2" TYPE="ext3" /dev/sda2: LABEL="/var" UUID="63b38ad8-3032-490f-afb2-50dc144722ce" SEC_TYPE="ext2" TYPE="ext3"

#blkid #uuid

what groups are installed? using yum

yum grouplist then do yum -v groupinfo "Internet Browser" then get this: Group-Id: internet-browser and use that in your kickstart @internet-browser yum -v groupinfo Base [root@collab ~]# yum grouplist > /tmp/installedgroups.txt to install a group - get it's group-id using yum -v groupinfo then run yum groupinstall internet-browser https://access.redhat.com/site/solutions/23620

how to list all the packages installed on a red hat linux server

rpm -qa

which package contains this library using yum

[root@teva profiles.d]# yum whatprovides *lib* teva: yum whatprovides libgdbm.so.*

how to sync a custom channel in red hat satellite from the command line

/usr/bin/spacewalk-repo-sync --channel epel6-x86_64 --type yum

example queries query in graylog2

session !closed (show all messages with the word session in them but not the ones with closed in them) Fail !beagle* (show all messages with the word Fail in them not from beagle*) Fail !chuml* !sendmail Fail -chumley (Fail in message and not chumley - = minus)

whats talking to port 53 udp

tcpdump -i eth0 udp (show all udp connections out of eth0) tcpdump port 53 netstat -anp| grep -i udp then you see lines with 172.16.118.8:53 and 172.16.118.7:53 and that has the process id in the line which is 23349 then ps -ef | grep 23349 and it's sendmail /etc/init.d/sendmail restart

if scp is stalling you can throttle it like so

scp -l as in: [root@sept2 myowan]# scp -l 96000 mp1logs.tar.gz homerway:/tmp/ mp1logs.tar.gz 100% 46MB 6.5MB/s 00:07 (slow the copying down to 96000Kbit/sec and no problem) [root@sept2 myowan]# scp -l 132000 mp1logs.tar.gz homerway:/tmp/ mp1logs.tar.gz 100% 46MB 9.1MB/s 00:05 (go to 132000Kbit/sec and no problem) [root@sept2 myowan]# scp -l 232000 mp1logs.tar.gz homerway:/tmp/ mp1logs.tar.gz 100% 46MB 11.4MB/s 00:04 (go to 232000Kbit/sec and no problem) [root@sept2 myowan]# scp -l 532000 mp1logs.tar.gz homerway:/tmp/ mp1logs.tar.gz 100% 46MB 22.8MB/s 00:02 (go to 532000Kbit/sec and no problem)

mysql query to excel or csv file

mysql> select * from all_logs where host like '172.16.80.119' and msg like '%password%' and msg not like '%Failed%' into outfile '/tmp/icweb.csv' fields terminated by ',' optionally enclosed by '"' escaped by -> '\\' lines terminated by '\n' ; Query OK, 322 rows affected (0.53 sec)

power consumption in redhat 6

https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html-single/Power_Management_Guide/index.html

omreport storage controllers No controllers found

Please go to /opt/dell/srvadmin/etc and run: # ./autoconf_cim_component.sh Then restart srvadmin services: # srvadmin-services.sh restart Then try again: # omreport storage controller

swap commands linux redhat 6 rhel 6

fdisk -l | grep swap cat /proc/swaps free

commands to get winbind information from active directory ad

wbinfo -u (show users on your pdc) wbinfo -g (show groups on your pdc) getent passwd getent group getent passwd myowan [root@august2 ~]# getent passwd myowan myowan:*:927991600:927990273::/home/myowan:/bin/bash [root@august2 ~]# getent group 927990273 domain_users:*:927990273: [root@august2 ~]# chown myowan:domain_users /home/myowan [root@august2 ~]# ls -ld /home/myowan drwx------ 4 myowan domain_users 4096 Nov 21 08:48 /home/myowan

configuring a disk utilization threshold in whats up gold

http://docs.ipswitch.com/NM/82_WhatsUp%20Gold%20v14.4/03_Help/index.htm?25179.htm?toc.htm

how to get the dell servicetag service tag from the command line in redhat

# dmidecode -t 1

red hat satellite root disk failure

1) unmount the /var/satellite disks 2) reinstall operating system making sure you partition it with enough space in /rhnsat (50G) /var (20G) 3) reinstall redhat satellite (same version you were running before the crash) 4) restore the database backup: su - oracle; db-control restore [directory] 5) apply the current certificate if needed (crashed at end of year so I needed to do this) 6) remount the old /var/satellite so you get most of the data from packages back 7) run satellite-sync to update channels 8) on all the client machines you need to run this to update the client cert : rpm -iv --replacefiles --replacepkgs http://teva.ithaca.edu/pub/rhn-org-trusted-ssl-cert-1.0-1.noarch.rpm

#redhat satellite

rsyslog/rsyslog2 troubleshooting

/sbin/rsyslog -f /etc/rsyslog.conf (interactive) use debug: /sbin/rsyslogd -c3 -dn > logfile checks config file: /sbin/rsyslogd -f /etc/rsyslog.conf -N1

#rsyslog #rsyslogd

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