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Enabling EPEL on CentOS 7

Extra Packages for Enterprise Linux (or EPEL) is a Fedora Special Interest Group that creates, maintains, and manages a high quality set of additional packages for Enterprise Linux, including, but not...

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UXMON:bond1.1504 is down – Network Bonding Interface is alarming that is down...

Node : linux.setaoffice.com Node Type : Intel/AMD x64(HTTPS) Severity : critical OM Server Time: 2016-09-27 18:35:55 Message : UXMON:bond1.1504 is down Msg Group : OS Application : bondmon Object :...

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UXMON: SSHD Daemon is not running or not doing it properly, please check

Node : solaris.setaoffice.com Node Type : Sun SPARC (HTTPS) Severity : normal OM Server Time: 2016-09-10 08:03:10 Message : UXMON: SSHD Daemon is not running or not doing it properly, please check Msg...

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UXMONhwmon: severity=major Physical Drive Failed

I have a HP Proliant DL380 G7 where I know that there is a physical disk with problems but HPOM is not alarming. Checking HPOM hwmon module root@linux:~ # /var/opt/OV/bin/instrumentation/UXMONbroker...

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Problems starting HP System Management Homepage

root@linux:~ # service hpsmhd restart Stopping hpsmhd: [FAILED] Starting hpsmhd: httpd (pid 6681) already running [ OK ] The process is a nfs daemon root@linux:~ # ps -ef | grep 6681 | grep -v grep...

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Adding and removing network interfaces from a network bonding

Removing eth3 from bond0 root@linux:~ # ifenslave -d bond0 eth3 root@linux:~ # cat /proc/net/bonding/bond0 Ethernet Channel Bonding Driver: v3.4.0-2 (October 7, 2008) Bonding Mode: load balancing...

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hpacucli still running! Stop it first.

If you have a Proliant Generation 9 root@linux:~ # dmidecode | grep -i proliant Product Name: ProLiant BL660c Gen9 Family: ProLiant HP ProLiant System/Rack Locator Use hpssacli to check the disk array....

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HPOM (xpl-394) semget operation failed.

[11/26/16 00:28:51] [HPOvXpl] [configure] [INFO] Creating directories under OvDataDir [11/26/16 00:28:51] [HPOvXpl] [configure] [INFO] Directory creation under OvDataDir completed. [11/26/16 00:28:51]...

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Linux LVM: Couldn’t find device with uuid unHhGy-Fg3A-Y8wU-PrWh-hwWx-Ki0R-D6Qasc

On this server, any command that uses LVM returns an error message complaining about a missing disk root@linux:~ # pvs Couldn’t find device with uuid unHhGy-Fg3A-Y8wU-PrWh-hwWx-Ki0R-D6Qasc. WARNING:...

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Linux EXT4-fs: error (device dm-156): ext4_lookup: deleted inode referenced:...

Node : serviceguardnode2.setaoffice.com Node Type : Intel/AMD x64(HTTPS) Severity : minor OM Server Time: 2016-12-22 18:22:32 Message : EXT4-fs: error (device dm-156): ext4_lookup: deleted inode...

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Putty: Terminal freezes running cat on Suse Linux

For some reason that I couldn’t run cat on a file and the terminal seems frozen. I solved this problem connecting first to a Red Hat Enterprise Linux 6 server before connecting to the Suse Linux...

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SAP HANA – UXMON: file systems were remounted read-only

Node : node99.setaoffice.com Node Type : Intel/AMD x64(HTTPS) Severity : critical OM Server Time: 2016-12-14 10:28:03 Message : UXMON: file systems were remounted read-only Msg Group : Hardware...

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Trying to become another user on Linux/getting error logging to server – su:...

emerson@linux:~ $ sudo su – oracle sudo password for emerson: su: cannot ser user id: Resource temporarily unavailable emerson@linux:~ $ The number of processes for the user must have exceeded the soft...

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Unable to connect to the MKS: Could not connect to pipe...

I was receiving the following error when connecting to the system console through the VMware vSphere client Unable to connect to the MKS: Could not connect to pipe \\.\pipe\vmware-authdpipe within...

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UXMON: AIX syslog alarm: TAPE DRIVE FAILURE with ID 5537AC5F

Node : aix.setaoffice.com Node Type : IBM RS/6000 64 HTTPS Severity : warning OM Server Time: 2017-01-21 12:03:23 Message : UXMON: AIX syslog alarm: TAPE DRIVE FAILURE with ID 5537AC5F Msg Group : OS...

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VMware guest server taking a long time to finish boot stuck at Bringing up...

Rebooted a server and saw some messages about VM communication interface showing errors Starting VMware Tools services in the virtual machine Switching to guest configuration: OK Paravirtual SCSI...

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LVM: Please specify number of stripes (-i) and stripesize (-I)

I tried to resize a logical volume but showed a message to specify stripes and stripesize root@linux:~ # lvresize -L +200g -r /dev/vgER0data/lv_sapdata1 Please specify number of stripes (-i) and...

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Remove ^M (Control-M) characters from a file in Unix

When checking my /etc/multipath.conf file, there was a lot of hidden characters ^M at the end of lines root@linux:~ # cat -vet /etc/multipath.conf To remove them, use tr and redirect the output to a...

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One path missing in disk map on multipath device

Showing a particular case: The disk mpath5 was only showing one path root@linux:~ # multipath -ll mpath5 mpath5 (350002ac19430374a) dm-17 3PARdata,VV [size=47G][features=0][hwhandler=0][rw] \_...

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Solaris 9 Branded Zone was not starting ftp when running kill -HUP

I have a Solaris 9 Branded Zone root@solaris9:/ # uname -a SunOS solaris9 5.9 Generic_Virtual sun4v sparc sun4v Configured to run FTP root@solaris9:/ # grep ftp /etc/inetd.conf # ftp telnet shell login...

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