Discuss September 2015

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136 participants
132 discussions

Samba Enterprise from Sernet no longer free
by Robert Moskowitz 26 Sep '15

26 Sep '15

http://www.samba.plus/ Currently this, other than rolling your own, this appears the only way to have a Samba AD on Centos. Later in the Samba 4.3 effort, MIT Kerberos is suppose to be supported so it MAY be easier to roll your own in a while, but until then, things are as they are. I am rethinking my efforts to develop a ARM based AD. I may just fall back (as everyone else) to just an NT style PDC.

2 1

x2go on CentOS6
by isdtor 25 Sep '15

25 Sep '15

Has anyone managed to get the x2go server working on CentOS 6.7? I started testing x2go from EPEL under 6.6, and it worked well. Then I didn't use it in 6 months plus, eventually upgraded the machine to 6.7, and it's no longer working. Both Windows and Linux clients error out with "Connection failed. 0: Event not found." A Linux client run with the debug option reports: x2go-DEBUG-../x2goclient-4.0.3.2/sshmasterconnection.cpp:963> Password authentication x2go-DEBUG-../x2goclient-4.0.3.2/sshmasterconnection.cpp:654> user auth OK x2go-DEBUG-../x2goclient-4.0.3.2/onmainwindow.cpp:2797> SSH connection established. x2go-DEBUG-../x2goclient-4.0.3.2/onmainwindow.cpp:3060> Continue normal x2go session x2go-DEBUG-../x2goclient-4.0.3.2/sshprocess.cpp:189> executing remote command via SshProcess object (0): "export HOSTNAME && x2golistsessions" x2go-DEBUG-../x2goclient-4.0.3.2/sshmasterconnection.cpp:1434> creating new channel x2go-DEBUG-../x2goclient-4.0.3.2/sshmasterconnection.cpp:1438> new channel:0x7efd94013740 x2go-DEBUG-../x2goclient-4.0.3.2/sshmasterconnection.cpp:1469> executing remote: "sh -c 'echo X2GODATABEGIN:a469c6c6-254d-431e-94ac-b30785359dbc; PATH=/usr/local/bin:/usr/bin:/bin export HOSTNAME && x2golistsessions; echo X2GODATAEND:a469c6c6-254d-431e-94ac-b30785359dbc;'" x2go-DEBUG-../x2goclient-4.0.3.2/sshmasterconnection.cpp:1492> new exec channel created x2go-DEBUG-../x2goclient-4.0.3.2/sshmasterconnection.cpp:1596> EOF ON CHANNEL 0x7efd94013740 (SshProcess: 0) x2go-DEBUG-../x2goclient-4.0.3.2/sshmasterconnection.cpp:1664> eof sent x2go-DEBUG-../x2goclient-4.0.3.2/sshmasterconnection.cpp:1668> channel closed x2go-DEBUG-../x2goclient-4.0.3.2/sshprocess.cpp:444> have only stderr, something must be wrong x2go-DEBUG-../x2goclient-4.0.3.2/sshprocess.cpp:449> ssh finished: false - "0: Event not found. " (0). x2go-DEBUG-../x2goclient-4.0.3.2/onmainwindow.cpp:3404> "0: Event not found. " This is potentially similar to http://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=800, which hasn't been updated since March.

4 6

php DOMDocument and entities
by Alice Wonder 24 Sep '15

24 Sep '15

This is not CentOS specific but I hope someone here knows so I do not have to subscribe to another list. I'm using php DOMDocument to create an XSL that needs a non-breaking space between two values. Basically: $xslvalueof = $dom->createElement('xsl:value-of'); $xslvalueof->setAttribute('select', '../@month'); $caption->appendChild($xslvalueof); $nbsp = $dom->createTextNode(' '); $caption->appendChild($nbsp); $xslvalueof = $dom->createElement('xsl:value-of'); $xslvalueof->setAttribute('select', '../@year'); $caption->appendChild($xslvalueof); That's what I am trying to do. createTextNode() however tries to protect the users, and automatically turns any & into & So I tried $nbsp = $dom->createEntityReference('#160'); That however gives a dom error, it seems createEntityReference only works with named entities. $nbsp = $dom->createEntityReference('nbsp'); works, but then I would have to modify the DTD for both XSL and the target XML because neither have nbsp defined. How can I create the literal string ' ' using DOMDocument as a text node between two other nodes? This is driving me nuts. I could I suppose put it inside a span &nbsp = $dom->createElement('span', ' '); That works but is hackish. It seems to work though by generating the actual UTF8 character itself. I really wish the XML spec itself had named entities for the various whitespace characters that tend to get eaten by XML parsers if not done as a numbered entity. Ah well. Using   works just fine when the XSL is a text file. It is dynamically creating it via DOMDocument where I have a problem. Thanks for any suggestions. -- -=- Sent my from my laptop, may not be able to respond timely

1 0

Bug in init scripts for ipset?
by tony＠softins.co.uk 24 Sep '15

24 Sep '15

I've just started experimenting with ipset under CentOS 6, and have found what appears to be a bug (or poor design) in the init scripts for ipset, /etc/rc.d/init.d/ipset In stop(), save() and status(), it does lsmod to check for the existence of the ip_set module. If the module is not found, it exits without performing any action. This doesn't take account of a kernel where the ip_set code is compiled in instead of being a loadable module. An example would be my CentOS 6 virtual machine at Linode. It has a Linode-compiled kernel 4.1.0 with no separately-loaded modules. It certainly supports ipset, as I have successfully tried some test rules. However, I wondered why giving the command "service ipset save" didn't result in /etc/sysconfig/ipset being written, and discovered the cause I described above. Surely there should be a better way of determining whether the kernel includes ipset support than just looking for a module? Cheers Tony -- Tony Mountifield Work: tony(a)softins.co.uk - http://www.softins.co.uk Play: tony(a)mountifield.org - http://tony.mountifield.org

2 1

Logrotate problems
by Andrew Holway 24 Sep '15

24 Sep '15

Hi Y'all, We have nginx set up and we are having problems with logrotate. The permissions and users do not seem to be any different from other machines that are working ok however the /var/log/nginx does have a directory in there that we are using to collect some special log stuff. Could this subdirectory be interfering with the logrotate process? ta Andrew [root@ ~]# logrotate -d /etc/logrotate.d/nginx reading config file /etc/logrotate.d/nginx Handling 1 logs rotating pattern: /var/log/nginx/*log after 1 days (10 rotations) empty log files are not rotated, old logs are removed considering log /var/log/nginx/access.log error: skipping "/var/log/nginx/access.log" because parent directory has insecure permissions (It's world writable or writable by group which is not "root") Set "su" directive in config file to tell logrotate which user/group should be used for rotation. considering log /var/log/nginx/error.log error: skipping "/var/log/nginx/error.log" because parent directory has insecure permissions (It's world writable or writable by group which is not "root") Set "su" directive in config file to tell logrotate which user/group should be used for rotation.

2 5

decode http hack attempt?
by James B. Byrne 24 Sep '15

24 Sep '15

Can anyone de-cypher the second entry for me? --------------------- httpd Begin ------------------------ Requests with error response codes 403 Forbidden /: 9 Time(s) /?c=4e5e5d7364f443e28fbf0d3ae744a59a: 3 Time(s) I have found the string via Google but have not located any explanation. -- *** e-Mail is NOT a SECURE channel *** Do NOT transmit sensitive data via e-Mail James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

3 2

amanda-client does not recognise 'dump'
by Tom Robinson 24 Sep '15

24 Sep '15

CentOS Linux release 7.1.1503 (Core) amanda-3.3.3-13.el7.x86_64 amanda-client-3.3.3-13.el7.x86_64 amanda-libs-3.3.3-13.el7.x86_64 dump-0.4-0.22.b44.el7.x86_64 Hi, I have been using amanda backup for quite a long time now. I'm busy migrating some older hosts to CentOS 7 but have found that the available amanda packages (see above) have not been compiled on a host that has the 'dump' program installed. Is this just an oversight or are we trying to not use 'dump' anymore? If the former, who is responsible for re-compiling this on a host that has 'dump' installed. Please see http://archives.zmanda.com/amanda-archives/viewtopic.php?t=7390 for more details Kind regards, Tom -- Tom Robinson IT Manager/System Administrator MoTeC Pty Ltd 121 Merrindale Drive Croydon South 3136 Victoria Australia T: +61 3 9761 5050 F: +61 3 9761 5051 E: tom.robinson(a)motec.com.au

2 1

Help with systemd
by Clint Dilks 24 Sep '15

24 Sep '15

Hi I am trying to get Greenstone3 http://www.greenstone.org/download to work with systemd. So far I have come up with the following which works but feels more like a hack than a solution. Does anyone have any suggestions on how to do this better ? # cat /etc/tmpfiles.d/greenstone3.conf d /run/greenstone3 0755 gs3 gs3 - # cat /etc/systemd/system/greenstone3.service # Systemd unit file for Greenstone 3 [Unit] Description=Greenstone 3 Server After=syslog.target network.target [Service] Type=forking PIDFile=/run/greenstone3/greenstone3.pid Environment=PATH=/usr/apache-ant-1.9.6/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin ExecStart=/usr/bin/bash -c "cd /greenstone/gs3/ && ant start ; /usr/sbin/pidof java | awk '{print $1}' > /run/greenstone3/greenstone3.pid" SuccessExitStatus=143 User=gs3 Group=gs3 [Install] WantedBy=multi-user.target Thanks

4 6

ISC DHCP failover
by Chris Adams 23 Sep '15

23 Sep '15

Anybody have any experience with setting up dhcpd in failover mode between two servers? I set this up on a couple of servers, and it seems to be working, but I don't think it is working "right". It appears both servers are replying to all requests (which for renewals works okay because they both give the same address, but new requests get two different responses). I thought that only one server would reply to a particular request. Also, every DHCPACK is followed by a message like this in the log: Sep 23 15:45:50 rad2 dhcpd: bind update on x.x.x.x from mypeer rejected: incoming update is less critical than outgoing update Any ideas? I subscribed and asked over on the ISC-operated dhcp-users list but haven't had any responses. Google finds others asking about the same log message, and the only responses seem to be "well, if you get it for every update, there's probably some configuration issue" (but nobody ever says what issue might lead to it). -- Chris Adams <linux(a)cmadams.net>

4 3

Updating intel graphics driver on CentOS7
by C. L. Martinez 23 Sep '15

23 Sep '15

Hi all, Is it possible to upgrade intel X11 org driver on CentOS7?? Maybe with elrepo's packages: http://elrepo.org/linux/extras/el7/x86_64/RPMS/xorg-x11-drv-intel-2.99.916-… It seems it doesn't exists driver in the upstream: https://01.org/linuxgraphics Thanks,

4 5

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Discuss September 2015