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My ethernet is not listed in centOS 8 boot.iso
by Ebed 26 Nov '19

26 Nov '19

Hi, Yesterday i tried to install centOS 8 on my little router and server, but there's no ethernet listed there. I'm using Compaq pressario V3737TU which come with Marvell PCI-e ethernet 100Mbps. It's an old laptop. Could anyone here help?

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yum4 and dnf on CentOS 8
by Sergio Belkin 25 Nov '19

25 Nov '19

Hi, I was using yum for years on CentOS servers, and since a few years ago dnf on Fedora desktops. My question is: Is the same yum4 on CentOS 8 that dnf? What should I use? Thanks in advance -- -- Sergio Belkin LPIC-2 Certified - http://www.lpi.org

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CentOS 8 and libssh2.h
by Jerry Geis 25 Nov '19

25 Nov '19

I am trying to find libssh2.h In the past I installed libssh2-devel I have libssh2 installed. I have tried yum install libssh2-devel - nothing found yum provides "*/libssh2.h" - nothing found yum search libssh2.h - nothing found. Thoughts ? Jerry

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FINAL call for content, FOSDEM CentOS Dojo
by Rich Bowen 25 Nov '19

25 Nov '19

Ok, folks, last call for content for the FOSDEM CentOS Dojo, January 31 in Brussels. https://wiki.centos.org/Events/Dojo/Brussels2020 Note that as of right now, I'm going to have to cancel one of the two rooms for the event, because we don't have enough content. So please submit your proposals about the interesting things you're doing on CentOS, so that we can put together another awesome event. Thanks. -- Rich Bowen - rbowen(a)redhat.com @CentOSProject // @rbowen 859 351 9166

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Re: [CentOS] IBM x3500 M3 and CentOS 7.*
by Mark (Netbook) 24 Nov '19

24 Nov '19

Hello, Please can anyone help with the problem below when trying to install CentOS 7.6 on an IBM x3500 M3 from DVD or USB. CentOS 7.5 installs perfectly with no errors. CentOS 7.6 tries to boot, an error is output briefly and the workstation powers down. CentOS 7.7 displays the error briefly then continues the install with no further errors. I also tried RHEL 7.6 which installs perfectly with no errors. Any ideas? Regards, Mark Woolfson MW Consultancy Ltd Leeds LS18 4LY United Kingdom Tel: +44 113 259 1204 Mob: +44 786 065 2778

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Installing Maven with OpenJDK 11, without pulling OpenJDK 1.8
by Mathieu Baudier 23 Nov '19

23 Nov '19

Hello, I am trying to create a container image which will build Java software with Maven and Java 11 (rather focussing on CentOS 8 here). When installing 'maven' with yum, 'java-1.8.0-openjdk-devel' is installed as a dependency. If one then installs 'java-11-openjdk-devel', and use the update-alternatives command for java and javac, everything works fine and Maven uses Java 11 for the build. But I would like to avoid shipping OpenJDK 1.8 with the image, since it would uselessly double its size. An approach would be to install Maven manually, but it feels better to use the provided package. Looking at the spec file, I understand that the 'maven' package requires 'java-devel' without explicitly specifying a version. Is there some way (configuration, yum option, alternative, etc.) to make OpenJDK 11 satisfying this dependency? Could the new modules / app stream approach of CentOS 8 help here? This is of course a more general RPM / yum question, but I suspect that the Java use case is a recurring one, as many of us are currently upgrading from 1.8 to 11. Thanks in advance for hints, or telling me that there is no way to achieve this, Mathieu

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Time tracking software
by H 23 Nov '19

23 Nov '19

I am looking for suggestions for open-source time tracking software to run on CentOS. If the data can be stored in my own central database, that is a plus, as is the potential availability of some client that can run on Android. Thank you.

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DHCP server failover: advise is needed
by Valeri Galtsev 22 Nov '19

22 Nov '19

Dear Experts, I was running ISC DHCP server for longer than I would care to remember. Now I decided to climb out of the cave and configure failover set (primary-secondary), and I seem to hit brick wall, which I need help with. I only need IP v4, no v6, which may simplify things. Could someone point to a description of working DHCP failover configuration? I do not want to make two independent DHCP servers handling half of the pool each. We are not that rich as far as IP space is concerned. I am not married to ISC DHCP server, so any one I will do, because: <rant> My current configuration is something that was gradually migrated and/or adjusted through several generations of systems, and server versions over the years. It works. When I tried to incorporate what I need for failover following ISC documentation, and some people's guides, I discovered, I need more sophisticated structure of sections and subsections, which I figured out finally. But the annoying part was: in ISC documentation I failed to find general stricture of which section can appear inside which; like: a { b { c { } } } You can create each of sections/subsections following documentation, but to put them together making consistent config file you (I at least) have to figure on your own which section goes inside of which. </rant> So, I am not married to ISC DHCP server, we didn't get along now as far as my use of documentation is concerned. Anything that works - with failover! I am going to have it set up on FreeBSD, but if something works on Linux, I likely will be able to reproduce it on FreeBSD. Thanks in advance for all your answers! Valeri -- ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++

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sendmail on Centos 7.7
by Jerry Geis 22 Nov '19

22 Nov '19

Hi All, I am 'trying' to set SMART_HOST in sendmail to point to smtp-relay.gmail.com but when looking at the /var/log/maillog its going to mx203.inbound-mx.net. [192.110.255.243], why??? my line from sendmail.mc define(`SMART_HOST', `smtp-relay.gmail.com') I did make in /etc/mail and service sendmail restart This is the only SMART_HOST in the config file. I started with the default CentOS 7.7 sendmail.mc and have not added anything else. just changed teh SMART_HOST. Why is mail relay to mx203.inbound-mx.net ???? Nov 22 08:16:00 lsi001 sendmail[9286]: xAMDFxlA009286: to= user.someone(a)gmail.com, ctladdr=root (0/0), delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=30197, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (xAMDFxjQ009287 Message accepted for delivery) Nov 22 08:16:00 lsi001 sendmail[9289]: STARTTLS=client, relay= mx203.inbound-mx.net., version=TLSv1/SSLv3, verify=FAIL, cipher=AES256-SHA, bits=256/256 Nov 22 08:16:01 lsi001 sendmail[9289]: xAMDFxjQ009287: to=< user.someone(a)gmail.com>, ctladdr=<root(a)machine.somewhere.com> (0/0), delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=120519, relay= mx203.inbound-mx.net. [192.110.255.243], dsn=2.0.0, stat=Sent (Queued!) Thanks. How do find out why its going to the wrong place ? Jerry

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Re: [CentOS] sendmail on Centos 7.7
by Richard 22 Nov '19

22 Nov '19

> Date: Friday, November 22, 2019 08:21:57 -0500 > From: Jerry Geis <jerry.geis(a)gmail.com> > > Hi All, > > I am 'trying' to set SMART_HOST in sendmail to point to > smtp-relay.gmail.com but when looking at the /var/log/maillog its > going to mx203.inbound-mx.net. [192.110.255.243], > > why??? > > my line from sendmail.mc > define(`SMART_HOST', `smtp-relay.gmail.com') > I did make in /etc/mail and service sendmail restart > > This is the only SMART_HOST in the config file. I started with the > default CentOS 7.7 sendmail.mc and have not added anything else. > just changed teh SMART_HOST. > > Why is mail relay to mx203.inbound-mx.net ???? > > Nov 22 08:16:00 lsi001 sendmail[9286]: xAMDFxlA009286: to= > user.someone(a)gmail.com, ctladdr=root (0/0), delay=00:00:01, > xdelay=00:00:01, mailer=relay, pri=30197, relay=[127.0.0.1] > [127.0.0.1], dsn=2.0.0, stat=Sent (xAMDFxjQ009287 Message accepted > for delivery) > Nov 22 08:16:00 lsi001 sendmail[9289]: STARTTLS=client, relay= > mx203.inbound-mx.net., version=TLSv1/SSLv3, > verify=FAIL, cipher=AES256-SHA, bits=256/256 > Nov 22 08:16:01 lsi001 sendmail[9289]: xAMDFxjQ009287: to=< > user.someone(a)gmail.com>, ctladdr=<root(a)machine.somewhere.com> (0/0), > delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=120519, relay= > mx203.inbound-mx.net. [192.110.255.243], dsn=2.0.0, stat=Sent > (Queued!) > > Thanks. How do find out why its going to the wrong place ? I would start by looking at the .cf file to make certain that it got written out correctly. You should find lines like: # "Smart" relay host (may be null) DSsmtp-relay.gmail.com If that looks right, then see what happens when you do dns queries for "smtp-relay.gmail.com" on that machine.

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