Re: [CentOS] SNMP oddity
On 03/23/2017 10:20 PM, Digimer wrote: Hi all, Not sure if this is on topic or not. I'm trying to query an SNMP value from centos 6 and I get a bad response if I don't specify the MIB to use: 0 digimer@pulsar:~/anvil/striker$ snmpget -v2c -c public -m /home/digimer/Downloads/APC/AP7900/MIB/powernet421.mib 10.255.2.1 .1.3.6.1.2.1.2.2.1.6.2 RFC1213-MIB::ifPhysAddress.2 = Hex-STRING: 00 C0 B7 5F 8A 85 0 digimer@pulsar:~/anvil/striker$ snmpget -v2c -c public 10.255.2.1 .1.3.6.1.2.1.2.2.1.6.2 IF-MIB::ifPhysAddress.2 = STRING: 0:c0:b7:5f:8a:85 Note the second reply is not returning the first character (should be '00:', returning '0:'. Trying to request Hex doesn't seem to help, either: 0 digimer@pulsar:~/anvil/striker$ snmpget -v2c -c public -Ox 10.255.2.1 .1.3.6.1.2.1.2.2.1.6.2 IF-MIB::ifPhysAddress.2 = STRING: 0:c0:b7:5f:8a:85 Any SNMP folks know what I might be doing wrong? Thanks! use net-snmp-config --default-mibdirs to locate where the mib file can be dropped so that snmp can use them. copy the mib file to one of the paths returned. mine usually end up in: /usr/share/snmp/mibs net-snmp-config --snmpconfpath To find the snmp config files Add the mib to the snmp.conf file. Mine looks like this: mibs +ALL mibs +ASTERISK-MIB mibs /usr/share/snmp/mibs/powernet419.mib you can simplify the line by looking at the mib file for this: PowerNet-MIB DEFINITIONS ::= BEGIN and then the config file can be this: mibs +ALL mibs +ASTERISK-MIB mibs +PowerNet-MIB To use the form above, the file has to be like this /usr/share/snmp/mibs/powernet419-mib.txt You can also use the MIBS environment variable to specify things: MIBS=+CISCO-RHINO-MIB:SOME-OTHER-SPIFFY-MIB export MIBS ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] SNMP oddity
Hi all, Not sure if this is on topic or not. I'm trying to query an SNMP value from centos 6 and I get a bad response if I don't specify the MIB to use: 0 digimer@pulsar:~/anvil/striker$ snmpget -v2c -c public -m /home/digimer/Downloads/APC/AP7900/MIB/powernet421.mib 10.255.2.1 .1.3.6.1.2.1.2.2.1.6.2 RFC1213-MIB::ifPhysAddress.2 = Hex-STRING: 00 C0 B7 5F 8A 85 0 digimer@pulsar:~/anvil/striker$ snmpget -v2c -c public 10.255.2.1 .1.3.6.1.2.1.2.2.1.6.2 IF-MIB::ifPhysAddress.2 = STRING: 0:c0:b7:5f:8a:85 Note the second reply is not returning the first character (should be '00:', returning '0:'. Trying to request Hex doesn't seem to help, either: 0 digimer@pulsar:~/anvil/striker$ snmpget -v2c -c public -Ox 10.255.2.1 .1.3.6.1.2.1.2.2.1.6.2 IF-MIB::ifPhysAddress.2 = STRING: 0:c0:b7:5f:8a:85 Any SNMP folks know what I might be doing wrong? Thanks! -- Digimer Papers and Projects: https://alteeve.com/w/ "I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops." - Stephen Jay Gould ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] RHEL 6.9 is out
> > > OK .. current status on CentOS-6.9 testing: > > We have a CR tree (see this link if you don't know what CR is > http://bit.ly/2mWkdq7 ) > > We have been testing this tree for several hours in QA and have made > some corrections. > > If we don't find any deal breaking errors, the plan is to push the CR > repo to 6.8 tree tomorrow at 1600 UTC .. it will take a couple hours to > get to all of mirror.centos.org. > > So expect some announcements on the CR-Annoucne list tomorrow: > > https://lists.centos.org/mailman/listinfo/centos-cr-announce > > Thanks, > Johnny Hughes > > Thanks Johnny and the CentOS team for all your hard work, commitment and dedication to this community. Thanks again -- Kind Regards Earl Ramirez ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] RHEL 6.9 is out
On 03/22/2017 05:11 PM, Digimer wrote: > On 22/03/17 05:31 PM, Johnny Hughes wrote: >> On 03/22/2017 08:27 AM, Phelps, Matthew wrote: >>> On Wed, Mar 22, 2017 at 9:16 AM, Valeri Galtsev >>> wrote: >>> On Wed, March 22, 2017 7:46 am, Phelps, Matthew wrote: > Red Hat released RHEL 6.9 yesterday. > > Why isn't CentOS 6.9 out yet? :) > Somebody has to do a hard work, I'm sure. Thanks, guys for the great work you are doing! Or you as sysadmin know that and just being ironic? Valeri >>> >>> To be clear, I was being ironic. Hence the smiley face. >>> >>> I just wanted to start a thread for future updates to appear in. >>> >> >> There are 270 SRPMs that need to be built .. of those 18 require >> modification for branding. All the mods have been applied and a build >> consisting of those 270 SRPMs has been queued. >> >> As of right now (time of writing this mail), we are still building in >> pass 1 .. so far 236 of the 270 SRPMs have tried to build, 15 have had >> some sort of failure and the rest have built fine. >> >> Working right now to figure out the failures and will resubmit those >> once the first pass of all 270 completes. >> > > Sending a digital $drink... :) > OK .. current status on CentOS-6.9 testing: We have a CR tree (see this link if you don't know what CR is http://bit.ly/2mWkdq7 ) We have been testing this tree for several hours in QA and have made some corrections. If we don't find any deal breaking errors, the plan is to push the CR repo to 6.8 tree tomorrow at 1600 UTC .. it will take a couple hours to get to all of mirror.centos.org. So expect some announcements on the CR-Annoucne list tomorrow: https://lists.centos.org/mailman/listinfo/centos-cr-announce Thanks, Johnny Hughes signature.asc Description: OpenPGP digital signature ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Python 3.x on Centos 7
On Thu, 2017-03-23 at 23:27 +, Christian, Mark wrote: > On Thu, 2017-03-23 at 18:16 -0500, Matt wrote: > > > > Is there a way to install Python 3.x on Centos 7.x without breaking > > anything that depends on an older version of Python? > Yes. > # yum install python34 I should have mentioned that python34 comes from the epel repo. which can be installed from: https://fedoraproject.org/wiki/EPEL#How_can_I_use_these_extra_packages.3F ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Python 3.x on Centos 7
On Thu, 23 Mar 2017, Matt wrote: Is there a way to install Python 3.x on Centos 7.x without breaking anything that depends on an older version of Python? This server is a minimal Centos 7 install that primarily runs a simple LAMP setup. yum install centos-release-scl yum search rh-python35 Install what you need, then you have a couple choices about how to use the SCL for Python 3.5. For your choices, see https://www.madboa.com/blog/2016/08/29/scl-intro/ -- Paul Heinlein <> heinl...@madboa.com <> http://www.madboa.com/ ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Python 3.x on Centos 7
On Thu, 2017-03-23 at 18:16 -0500, Matt wrote: > Is there a way to install Python 3.x on Centos 7.x without breaking > anything that depends on an older version of Python? This server is a > minimal Centos 7 install that primarily runs a simple LAMP setup. Yes. # yum install python34 > ___ > CentOS mailing list > CentOS@centos.org > https://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Python 3.x on Centos 7
Yes. Just don't delete 2.x version (Sent from iPhone, so please accept my apologies in advance for any spelling or grammatical errors.) > On Mar 23, 2017, at 6:16 PM, Matt wrote: > > Is there a way to install Python 3.x on Centos 7.x without breaking > anything that depends on an older version of Python? This server is a > minimal Centos 7 install that primarily runs a simple LAMP setup. > ___ > CentOS mailing list > CentOS@centos.org > https://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] Python 3.x on Centos 7
Is there a way to install Python 3.x on Centos 7.x without breaking anything that depends on an older version of Python? This server is a minimal Centos 7 install that primarily runs a simple LAMP setup. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] kerberized-nfs - any experts out there?
On Wed, Mar 22, 2017 at 6:11 PM, John Jasen wrote: > On 03/22/2017 03:26 PM, Matt Garman wrote: >> Is anyone on the list using kerberized-nfs on any kind of scale? > > Not for a good many years. > > Are you using v3 or v4 NFS? v4. I think you can only do kerberized NFS with v4. > Also, you can probably stuff the rpc.gss* and idmapd services into > verbose mode, which may give you a better ideas as to whats going on. I do that. The logs are verbose, but generally too cryptic for me to make sense of. Web searches on the errors yield results at best 50% of the time, and the hits almost never have a solution. > And yes, the kernel does some kerberos caching. I think 10 to 15 minutes. To me it looks like it's more on the order of an hour. For example, a simple test I've done is to do a "fresh" login on a server. The server has just been rebooted, and with the reboot, all the /tmp/krb5cc* files were deleted. I login via ssh, which implicitly establishes my Kerberos tickets. I deliberately do a "kdestroy". Then I have a simple shell loop like this: while [ 1 ] ; do date ; ls ; sleep 30s ; done Which is just doing an ls on my home directory, which is a kerberized NFS mount. Despite having done a kdestroy, this works, presumably from cached credentials. And it continues to work for *about* an hour, and then I start getting permission denied. I emphasized "about" because it's not precisely one hour, but seems to range from maybe 55 to 65 minutes. But, that's a super-simple, controlled test. What happens when you add screen multiplexers (tmux, gnu screen) into the mix. What if you login "fresh" via password versus having your gss (kerberos) credentials forwarded? What if you're logged in multiple times on the same machine by via different methods? ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] kerberized-nfs - any experts out there?
On Wed, Mar 22, 2017 at 3:19 PM, wrote: > Matt Garman wrote: >> (2) Permission denied issues. I have user Kerberos tickets >> configured for 70 days. But there is clearly some kind of >> undocumented kernel caching going on. Looking at the Kerberos server >> logs, it looks like it "could" be a performance issue, as I see 100s >> of ticket requests within the same second when someone tries to launch >> a lot of jobs. Many of these will fail with "permission denied" but >> if they immediately re-try, it works. Related to this, I have been >> unable to figure out what creates and deletes the >> /tmp/krb5cc_uid_random files. > > Are they asking for *new* credentials each time? They should only be doing > one kinit. Well, that's what I don't understand. In practice, I don't believe a user should ever have to explicitly do kinit, as their credentials/tickets are implicitly created (and forwarded) via ssh. Despite that, I see the /tmp/krb5cc_uid files accumulating over time. But I've tried testing this, and I haven't been able to determine exactly what creates those files. And I don't understand why new krb5cc_uid files are created when there is an existing, valid file already. Clearly some programs ignore existing files, and some create new ones. > And there's nothing in the logs, correct? Have you tried attaching strace > to one of those, and see if you can get a clue as to what's happening? Actually, I get this in the log: Mar 22 13:25:09 daemon.err lnxdev108 rpc.gssd[19329]: WARNING: handle_gssd_upcall: failed to find uid in upcall string 'mech=krb5' Thanks, Matt ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
