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Postings by marcos valentine

rpc.statd is not running but is required for remote locking.

Hello

I'm trying to mount a nfs system. But i receive this message:

mount -t nfs <IP>:/backup /backupnfs
mount.nfs: rpc.statd is not running but is required for remote locking.
mount.nfs: Either use '-o nolock' to keep locks local, or start statd.
mount.nfs: an incorrect mount option was specified

After a fews searchs on google

i tried to execute the files:

sbin/rpc.statd
/usr/sbin/start-statd

Wich is best for backup? nfs of iscsi?

Hello

I have a CentOS VM with a lots of inodes, and 500GB +/-, running under
hyper-v . Which is best for backup them? What is the pros and cons?

Thanks for attention.

iscsiadm: Could not perform SendTargets discovery: encountered non-retryable iSCSI login failure

Hello

I know this not the place to ask help, but i can't send messages to iscsi
list. :(

I have 3 CentOS 6 connecting to a ISCSI server with Targecli suddenly they
lost connection and i receive this error when i performance iscsiadm --mode
discovery --type sendtargets --portal x.x.x.x

iscsiadm: Could not perform SendTargets discovery: encountered
non-retryable iSCSI login failure

I have already changed the password for the ACLs.

Thanks for attention.

ISCSI target + LVM Problem

Hello,

I have a LVM with 2 ISCSI disk mounted. The partition started presents
problem such " i/o error". I unmounted the device, and restarted target
server in scsi, wich as having some problems. After that i mapped iscsi and
trying to mount partition again but:
When i run the pvdisplay i get the following erro:

read failed after 0 of 4096 at 0: Input/output error

And cannot mount partition.

Best practices to manager multiples sysadmins working as root with multiple servers?

Hello

In my new company they have a lot of CentOS linux servers. I was wondering
what is the best practice do manage access root to a multiples sysadmin in
multiple servers.

Pupper? Ldap? Proxy Server with ssh?

Thanks for attention.

How to detect botnet user on the server ?

Hello guys,

Whats is the best way to identify a possible user using a botnet with php
in the server? And if he is using GET commands for example in other server.

Does apache logs outbound conections ?

If it is using a file that is not malicious the clam av would not identify.

Thanks

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What free memory range is safe to operate?

Hello,

Hello, There's a official documentation telling which is the percent of
free memory is indicated to operate?A limit to Avoiding crashing, slow
performance, and memory warnings. What are the thresholds?

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