Re: [CentOS] Setting up NIS on Centos 8

2020-12-09 Thread Gordon Messmer
On 12/9/20 6:06 PM, Mark LaPierre wrote: Okay, say I decide to go with LDAP and NFS.  I'll be needing some hand holding to get it set up. If you don't have a very good reason to do choose something else, then use FreeIPA for your LDAP/Kerberos service.  It's very streamlined.

Re: [CentOS] Setting up NIS on Centos 8

2020-12-06 Thread Gordon Messmer
On 12/6/20 8:17 AM, Nicolas Kovacs wrote: The main problem with NIS is that logins and passwords circulate in clear-text over the network. That's not quite it.  Passwords aren't sent over the network at all when a service or system processes a password in a NIS environment.  Under NIS,

Re: [CentOS] CentOS and mdadm

2020-12-01 Thread Gordon Messmer
On 12/1/20 3:48 AM, Nicolas Kovacs wrote: If anyone can explain the exact meaning of --metadata, I'd be grateful. I think the man page is pretty clear on that one.  There are two different versions of the metadata block, and the second one (1.x) can be stored at different locations

Re: [CentOS] Desktop Over NFS Home Blocked By Firewalld

2020-11-20 Thread Gordon Messmer
On 11/20/20 1:26 PM, Michael B Allen wrote: Thanks for the inputs but my problem has nothing to do with NFS. Do you think that because you saw "krbupdate" in /etc/services? The problem you've described is definitely an NFSv3 problem.  The connections causing the client to hang are portmap

Re: [CentOS] Desktop Over NFS Home Blocked By Firewalld

2020-11-20 Thread Gordon Messmer
On 11/20/20 11:31 AM, Michael B Allen wrote: I can't log into a desktop with an nfs home dir without punching a reverse hole in my firewall? That shouldn't be. I'm pretty sure your client is using NFSv3, and the ports you need opened are for RPC, and they *are* dynamic (so the next time

Re: [CentOS] Learning to build applications

2020-11-18 Thread Gordon Messmer
On 11/18/20 4:38 PM, H wrote: I am a beginner when it comes to compiling applications and would appreciate suggestion how to fix the above. Thank you. Looks like a build failure that was mentioned here: https://github.com/pgmodeler/pgmodeler/issues/1259 I believe this reply is relevant:

Re: [CentOS] (C8) root on mdraid

2020-11-16 Thread Gordon Messmer
On 11/15/20 10:40 PM, Łukasz Posadowski wrote: Sun, 15 Nov 2020 14:16:48 -0800 Gordon Messmer : Use metadata version 1.2 instead of 0.9. Thanks, I'll try that. I'm use to metadata 0.9, because GRUB have (had?) some issue with the newer ones. If that doesn't work, and you need to use

Re: [CentOS] (C8) root on mdraid

2020-11-15 Thread Gordon Messmer
On 11/15/20 3:32 AM, Łukasz Posadowski wrote: Do anyone can suggest what else I forgot to do? Use metadata version 1.2 instead of 0.9. You need for the filesystem to be not visible until after the RAID is assembled, and the easiest way to do that is to put the metadata at the beginning of

Re: [CentOS] Run as root on reboot

2020-10-29 Thread Gordon Messmer
On 10/28/20 4:34 PM, david wrote: During initial setup, I'd like to avoid the manual actions of logging on as root and executing a command, but instead have that command run without intervention.  The output of the command would still show up on the terminal that initiated the reboot.

Re: [CentOS] storage for mailserver

2020-09-19 Thread Gordon Messmer
On 9/16/20 10:40 AM, Phil Perry wrote: You can achieve this with a hybrid RAID1 by mixing SSDs and HDDs, and marking the HDD members as --write-mostly, meaning most of the reads will come from the faster SSDs retaining much of the speed advantage, but you have the redundancy of both SSDs and

Re: [CentOS] erasing a disk

2020-09-14 Thread Gordon Messmer
On 9/14/20 1:14 PM, david wrote: I've tried erasing the first megabyte of the disk, but there are ZFS or LVM structures that get in the way.  So, does anyone have an efficient way to erase structures from a disk such that it can be reused? Use "wipefs -a" on any partition (or raw disk)

Re: [CentOS] Server entering Emergency Shell, but continues fine after pressing Enter

2020-09-12 Thread Gordon Messmer
On 9/12/20 1:04 PM, Quinn Comendant wrote: [root@myhost ~] systemctl status initrd-switch-root.service ● initrd-switch-root.service - Switch Root Loaded: loaded (/usr/lib/systemd/system/initrd-switch-root.service; static; vendor preset: disabled) Active: failed (Result: signal) since

Re: [CentOS] Server entering Emergency Shell, but continues fine after pressing Enter

2020-09-12 Thread Gordon Messmer
On 9/12/20 1:04 PM, Quinn Comendant wrote: I don't see any errors from `systemctl status initrd-parse-etc.service` or `journalctl -b 0` (I've pasted the full output here:https://write.as/at21opjv3o9fin1t.txt) I see errors in the journalctl output.  Look into these: Sep 12 19:41:12 myhost

Re: [CentOS] Server entering Emergency Shell, but continues fine after pressing Enter

2020-09-12 Thread Gordon Messmer
On 9/11/20 5:29 PM, Quinn Comendant wrote: Those have always reported success (even before I removed the OnFailure option): In that case, I'd revert the change you made, unlock the root account so that you can use the emergency shell, let the system boot to an emergency shell, and collect

Re: [CentOS] Server entering Emergency Shell, but continues fine after pressing Enter

2020-09-11 Thread Gordon Messmer
On 9/11/20 4:51 PM, Quinn Comendant wrote: Does anyone know what initrd-parse-etc.service does? Or have suggestions how to troubleshoot that unit specifically? Run "systemctl daemon-reload && echo success" and verify that it reports success, and not errors. Check the output of "systemctl

Re: [CentOS] Thunderbird won't start after move to new box

2020-09-11 Thread Gordon Messmer
On 9/10/20 9:08 AM, Gary Stainburn wrote: Thunderbird only starts if I run it -safe-mode I'd suggest removing ~/.thunderbird/*.default/extensions/ and reinstalling any extensions you need. ___ CentOS mailing list CentOS@centos.org

Re: [CentOS] Tracking or checking backported kernel patches from upstream

2020-09-02 Thread Gordon Messmer
On 9/2/20 8:17 AM, Johnny Hughes wrote: You CAN do a diff on the exploded tarball from the SRPM and either the last kernel released (to see what is in this update) .. or the kernel.org reference kernel .. to see what is different from the kernel.org release. You can, but expanding two kernels

Re: [CentOS] Boot fails with lvm snapshot

2020-08-19 Thread Gordon Messmer
On 8/19/20 1:02 AM, Patrick Bégou wrote: However, if this snapshot exists, reboot of the server freeze at boot time and I must manually remove this snapshot. Why ? It's a bug.  Update dracut. https://bugzilla.redhat.com/show_bug.cgi?id=1287940

Re: [CentOS] Replacement for KMail V1

2020-08-17 Thread Gordon Messmer
On 8/17/20 2:16 AM, Gary Stainburn wrote: I am currently limping along using Thunderbird but I find the lack of useful keystroke functions (such as next unread message, next folder with an unread message) annoying https://support.mozilla.org/en-US/kb/keyboard-shortcuts 'n' navigates to the

Re: [CentOS] rsync upgrade

2020-08-06 Thread Gordon Messmer
On 8/6/20 8:45 AM, J Martin Rushton via CentOS wrote: C7 is at rsync 3.1.2-10, and will not go above 3.1.2 ever. Is there a reason you think that?  RHEL 7 was originally released with 3.0.9, so we can demonstrate that Red Hat will update not only revision, but minor version increases within

Re: [CentOS] Boot failed on latest CentOS 7 update

2020-08-03 Thread Gordon Messmer
On 8/3/20 2:21 AM, Jyrki Tikka wrote: The boot disks must have an EFI boot partition even though it's not used in this case. IIRC, they need a partition at the beginning of the drive to reserve space for GRUB2.  That should be a "BIOS boot partition" not an "EFI System partition" for

Re: [CentOS] Boot failed on latest CentOS 7 update

2020-08-02 Thread Gordon Messmer
On 8/2/20 4:11 PM, John Pierce wrote: isn't it more that they simply won't work with newer boots that were signed by the new keys? and the updated BIOS's won't boot older OS versions that weren't signed by the new keys? I don't know if the Secure Boot PKI has a publicly documented

Re: [CentOS] Boot failed on latest CentOS 7 update

2020-08-02 Thread Gordon Messmer
On 8/2/20 1:19 PM, John Pierce wrote: One of the things that bugs me about PKI trust chains like this, what happens if the unthinkable happens, and Microsoft's RootCA gets compromised and has to be revoked... does that mean every single piece of UEFI hardware out there needs a BIOS upgrade?

Re: [CentOS] pgbouncer.pid Permissions on CentOS 7

2020-08-01 Thread Gordon Messmer
On 7/31/20 4:40 PM, Bee.Lists wrote: However the service isn’t starting because the ownership of the parent directory, pgbouncer:pgbouncer results in some permissions issues: 2020-07-31 04:58:34.089 EDT [3682] FATAL could not open pidfile '/var/run/pgbouncer/pgbouncer.pid': Permission

Re: [CentOS] what's the advantage of NetworkManager for server?

2020-06-29 Thread Gordon Messmer
On 6/29/20 1:34 AM, d tbsky wrote: what's the advantage of NetworkManager for server? The shortest clear answer I can give you is: In the event of a power loss, many servers will boot faster than the managed Ethernet switch they are attached to.  Systems managed by network-scripts may not

Re: [CentOS] Centos7 and Vlan

2020-06-16 Thread Gordon Messmer
On 6/16/20 1:56 AM, Alfredo De Luca wrote: I have centos7 with 1 network interface and on that IFwe have 2 vlan. From both vlan we'd like to reach the internet independently so basically with 2 different gateways. Look for documentation on "multi-homing":

Re: [CentOS] Apache (httpd) fails to start at boot - Centos 8.1

2020-06-15 Thread Gordon Messmer
On 6/15/20 7:06 PM, Jay Hart wrote: If I do 'systemctl start httpd', apache will start right up. But during boot, it doesn't and I get the resulting errors below. Jun 15 21:17:28 dream httpd[1534]: (99)Cannot assign requested address: AH00072: make_sock: could not bind to address

Re: [CentOS] Modifying username

2020-06-14 Thread Gordon Messmer
On 6/14/20 1:39 PM, Jay Hart wrote: You may need to modify /etc/shadow for consistency. I don't know what to do here. Need some guidance please. Run "vipw -s" and make the same change to that file's record for ABCLast. ___ CentOS mailing list

Re: [CentOS] CentOS runs on six cores.

2020-06-12 Thread Gordon Messmer
On 6/12/20 2:16 AM, Thomas Stephen Lee wrote: Do we need an upgrade ? Can you restate your question so that it's clear what version you are running, what hardware you are running it on, what you expect to happen, and what is happening instead?

Re: [CentOS] Trying to get bride network on CentOS 7 working with virt-manager

2020-06-08 Thread Gordon Messmer
On 6/8/20 3:46 PM, Jerry Geis wrote: I have these interfaces listed. virbr0: flags=4099 mtu 1500 inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255 virbr1: flags=4099 mtu 1500 inet 192.168.100.1 netmask 255.255.255.0 broadcast 192.168.100.255 Those

Re: [CentOS] Bridge network for virt-manager

2020-06-03 Thread Gordon Messmer
On 6/2/20 3:38 AM, Jerry Geis wrote: Hello. I desire to get bridge network working using virt-manager. The easiest way to set up bridged networking on CentOS 7 is:     virsh iface-bridge eth0 br0 --no-stp This command will create a new bridge interface, br0.  The existing interface, eth0,

Re: [CentOS] user names

2020-06-02 Thread Gordon Messmer
On 6/1/20 10:29 AM, Jerry Geis wrote: The problem is the client program trying to talk to the linux server is base64 encoding the entire email address for the AUTH LOGIN, not just the "username". so my user name needs to include the "@" symbol. That's a common requirement for servers that

Re: [CentOS] du hung, wild display in ps

2020-05-06 Thread Gordon Messmer
On 5/6/20 12:28 PM, Fred Smith wrote: Was running du to examine the sizes of my backups and found du hung, /mnt/backup is probably a network-mounted filesystem that is offline for one reason or another. You could try "umount -f /mnt/backup" if you can't get the mount working by any other

Re: [CentOS] Odd permissions

2020-05-06 Thread Gordon Messmer
On 5/6/20 8:30 AM, mark wrote: when I log out, it restarts with me logged in, and only the second time I log out does it actually log me out. Are you using a Wayland or X11 session?  It sounds like you may have an .xinitrc file in your home dir that starts your X11 clients twice...

Re: [CentOS] Weird bug in 389 Directory Server : no spaces in admin console (CentOS 7)

2020-04-26 Thread Gordon Messmer
On 4/25/20 11:45 PM, Nicolas Kovacs wrote: Le 26/04/2020 à 08:31, Gordon Messmer a écrit : Are you sure the input lacked a space character, and that this isn't just a font rendering bug? 100 % positive. ... I can hit the space bar as much as I want, the cursor won't budge. (It sounds

Re: [CentOS] Weird bug in 389 Directory Server : no spaces in admin console (CentOS 7)

2020-04-26 Thread Gordon Messmer
On 4/25/20 10:41 PM, Nicolas Kovacs wrote: I tried to add a user in my directory, with "Nicolas Kovacs" in the "Common Name" field, but instead of "Nicolas Kovacs" I get "NicolasKovacs" and there is no way to add space between the first and the last name. Are you sure the input lacked a space

Re: [CentOS] slow performance on company production server I need help

2020-04-22 Thread Gordon Messmer
On 4/22/20 8:53 AM, Christopher Wensink wrote: I had an 8 TB External USB disk plugged into the system, that I had been using for additional space for backups, I was under the impression that sda, sdb, sdc, and sdd were the four disks on the raid controller card, Not exactly.  If you have a

[CentOS] SELinux denies login

2020-04-13 Thread Gordon Messmer
We have a CentOS 7 workstation whose user has started reporting periodic login failures. This seems to be the result of the krb5 cache aging out, and sssd's krb5_child attempting and failing to remove the old cache file. The AVC follows: type=AVC msg=audit(1586670874.327:73041): avc:

Re: [CentOS] Display system logs in chroot ?

2020-04-12 Thread Gordon Messmer
On 4/12/20 1:16 AM, kikinovak via CentOS wrote: In the meantime, I would be curious though : how*do* you read system logs in chroot ? As far as I know: the same way you do when you're not in a chroot.  *Reading* logs doesn't seem to involve connecting to journald, so: less

Re: [CentOS] Borgbackup question

2020-03-01 Thread Gordon Messmer
On 3/1/20 11:18 AM, Tobias Kirchhofer wrote: This runs nicely for around two years without interruption. It's been working for me, too, but I think that people who've seen the tool fail are better equipped to answer whether a tool is "production ready" than those who haven't.

Re: [CentOS] Borgbackup question

2020-03-01 Thread Gordon Messmer
On 3/1/20 12:40 AM, Alessandro Baggi wrote: borgbackup is a very interesting backup tool with a lot of features. It is ready for "production" or I should expect some bad surprise? I don't know the answer to that, but to me that implies two questions: 1) Are there failure conditions that it

Re: [CentOS] [semi-OT] C7 Possible bug but I can't determine what tool has the problem

2020-01-15 Thread Gordon Messmer
On 1/15/20 8:18 AM, Alessandro Baggi wrote: Then I sync src/ to dest/ using "rsync -avS  src/ dest/", all ok but when I run "du -h dest/testfile" I get 0 and if I run "du -b dest/testfile" I get the correct size in bytes. That's not a bug, that's what sparse files are. In POSIX systems,

Re: [CentOS] Limiting what devices can pair over Bluetooth?

2020-01-13 Thread Gordon Messmer
On 1/13/20 2:26 AM, James Pearson wrote: Which is a pity, as it's either an all or nothing with Bluetooth, which means we can't use Bluetooth for Wacom tablets without opening up access to file transfer over Bluetooth as well ... What is the threat you're trying to mitigate, specifically? 

Re: [CentOS] Problem with disconnecting SSH-sessions

2019-12-26 Thread Gordon Messmer
On 12/26/19 2:49 PM, H wrote: I just looked at the settings in /etc/ssh/ssh_config on the workstation - which should apply to all users on it - I already had: Host *  TCPKeepAlive yes  ServerAliveInterval 60 Well, keep-alive options would only make a difference if the problem were a DNAT

Re: [CentOS] Problem with disconnecting SSH-sessions

2019-12-26 Thread Gordon Messmer
On 12/26/19 12:59 PM, H wrote: Are my observations above still consistent with your hypothesis? Largely, yes.  I'm not sure why you'd be disconnected while transferring data (one of scp or sftp, right?), but it sounds like a DNAT-related limit.

Re: [CentOS] nfs causes Centos 7.7 system to hang

2019-12-26 Thread Gordon Messmer
On 12/26/19 2:15 AM, Nikolaos Milas wrote: After I upgraded to latest: CentOS Linux release 7.7.1908 (Core) I am facing nfs crashes which cause the system to hang frequently. This is happening on the client, right?  What system is providing the NFS service? I tried to downgrade nfs-utils

Re: [CentOS] Problem with disconnecting SSH-sessions

2019-12-26 Thread Gordon Messmer
On 12/25/19 6:56 AM, H wrote: I have tried to make sure the sshd configuration on all servers are identical but still have this problem. I can rule out a general problem with the router in my office since all connections are via that router, the only difference is that the problematic server

Re: [CentOS] named errors in /var/log/messages

2019-11-09 Thread Gordon Messmer
On 10/30/19 1:14 AM, Walter H. wrote: can someone explain these errors Oct 27 15:34:05 vhost01 named[1316]: zone #ZONE#/IN/auth: refresh: retry limit for master IPV6-MASTER#53 exceeded (source IPV6-THIS#0) https://access.redhat.com/solutions/1231573 I believe this means that the client is

Re: [CentOS] NFS shutdown issue

2019-10-31 Thread Gordon Messmer
On 10/29/19 6:28 PM, Darby Vicker wrote: Interesting - thanks for the info. I can understand that behavior in a shutdown situation. But I'm surprised that unmounting (either cleanly or uncleanly) one of two exported filesystems triggers the NFS service to shutdown completely. Is this

Re: [CentOS] UEFI and PXE

2019-10-21 Thread Gordon Messmer
On 10/21/19 6:38 AM, isdtor wrote: Booting with CentOS6 /boot/efi/EFI/redhat/grub.efi, and the older style pxe config file as per ... results in a grub (legacy) prompt on the target machine. Have you tried using the file from the installation tree?

Re: [CentOS] mplayer or vlc?

2019-10-18 Thread Gordon Messmer
On 10/15/19 8:02 AM, Georgios wrote: You can also use VLC through flatpak. That's true, but there's not a good reason to use it if a proper package is available.  flatpak isn't so much a good packaging format as it is a way to keep applications that aren't well packaged isolated from the

Re: [CentOS] qeum on centos 8 with nvme disk

2019-10-14 Thread Gordon Messmer
On 10/14/19 5:34 AM, Jerry Geis wrote: Is there a command for virt-manager stuff that is just like qemu? Just command line - I dont want the GUI popping up and all that stuff. I dont need it creating all other files - just a simple command line ? I have not found that yet with my searching.

Re: [CentOS] CentOS 8

2019-09-25 Thread Gordon Messmer
On 9/25/19 7:10 AM, mark wrote: I just skimmed through the deprecated, and there's a*lot*. But one hit me in the face: if you make a change to /etc/nsswitch.conf, you need to REBOOT THE SERVER? Note, that appears in the "known issues" section, and not deprecations.  And if you look at BZ

Re: [CentOS] Need to update gcc to version >=6 on CentOS 7 ?

2019-09-11 Thread Gordon Messmer
On 9/11/19 9:50 AM, John Chludzinski wrote: $ sudo yum install devtoolset-7 No package devtoolset-7 available. Error: Nothing to do You've skipped step #1: sudo yum install centos-release-scl ___ CentOS mailing list CentOS@centos.org

Re: [CentOS] Need to update gcc to version >=6 on CentOS 7 ?

2019-09-11 Thread Gordon Messmer
On 9/11/19 9:05 AM, John Chludzinski wrote: How do I go about updating gcc to version 6 or greater on my CentOS 7 machine? And do so safely? The easiest way is going to be to use software collections: https://www.softwarecollections.org/en/scls/rhscl/devtoolset-7/ devtoolset 7 will install

Re: [CentOS] I broke "yum update" - C7

2019-08-30 Thread Gordon Messmer
On 8/30/19 8:31 AM, Alexander Dalloz wrote: Based on that it appears to me very clear that the trust with the DigiCert chain wasn't given due to a missing trust from the ca-cert bundle That seems reasonable to me.  :) ___ CentOS mailing list

Re: [CentOS] I broke "yum update" - C7

2019-08-30 Thread Gordon Messmer
On 8/30/19 8:17 AM, Gary Stainburn wrote: However, when I re-installed ca-certificates it immediately fixed the problem on both boxes, which implies an internal problem. That is only true if yum selected the same server, and there is no evidence that it did.  It's possible that reinstalling

Re: [CentOS] I broke "yum update" - C7

2019-08-30 Thread Gordon Messmer
On 8/29/19 8:20 AM, Alexander Dalloz wrote: yum uses libcurl behind the scenes and thus NSS and not OpenSSL. Good to know. In that case: Gary, what do you see when you run:     /usr/lib64/nss/unsupported-tools/vfyserv -p 443 us-east.repo.webtatic.com Do you get something indicative when

Re: [CentOS] I broke "yum update" - C7

2019-08-30 Thread Gordon Messmer
On 8/30/19 5:52 AM, Gary Stainburn wrote: Incidentally, the*good* server that I was referencing my broken server against has decided to start giving the curl certificate errors in the same way that the broken one did. Very strange. I ran It's possible that the error is unrelated to the

Re: [CentOS] I broke "yum update" - C7

2019-08-29 Thread Gordon Messmer
On 8/29/19 3:03 AM, Gary Stainburn wrote: https://us-east.repo.webtatic.com/yum/el7/x86_64/repodata/repomd.xml: [Errno 14] curl#60 - "Peer's Certificate issuer is not recognized." What do you see when you run:     openssl s_client -showcerts -connect us-east.repo.webtatic.com:443

Re: [CentOS] CentOS 6 SELinux question: inbound ssh.

2019-08-18 Thread Gordon Messmer
On 8/17/19 6:42 PM, Robert Heller wrote: Is there some hack to get SELinux to cooperate with this scheme? restorecon -r -v /var/lib/amanda/.ssh I haven't tested this, but there *is* a context specified for that path in /etc/selinux/targeted/contexts/files/file_contexts.

Re: [CentOS] Question on server speed

2019-08-05 Thread Gordon Messmer
On 8/5/19 10:17 AM, Jerry Geis wrote: Do I need to 'tweak' something to no see GUI freezes... Waiting on characters to show - even remoted in with SSH experiences the same thing - so its not just X. Look at the output of "dmesg" and see if there are errors there.

Re: [CentOS] Strange apache problem

2019-08-05 Thread Gordon Messmer
On 8/5/19 5:01 AM, Nikos Gatsis - Qbit wrote: On 8/2/2019 6:23 AM, Nikos Gatsis - Qbit wrote: After update last centos packages, greek characters from sql request look like question marks ? After hours of tryingΒ  to find out what happens, I found out that updated freetds and after httpd

Re: [CentOS] mdadm issue

2019-07-24 Thread Gordon Messmer
On 7/23/19 2:46 PM, Leon Fauster via CentOS wrote: cryptsetup isLuks && echo Success cryptsetup luksDump mark, have you checked for luks info on md125?  Does it have a matching entry in /etc/crypttab? ___ CentOS mailing list

Re: [CentOS] mdadm issue

2019-07-23 Thread Gordon Messmer
I still don't understand how this relates to md125.  I don't see it referenced in mdadm.conf.  It sounds like you see it in the output from lsblk, but only because you manually assembled it.  Do you expect there to be a luks volume there? ___ CentOS

Re: [CentOS] mdadm issue

2019-07-23 Thread Gordon Messmer
On 7/23/19 11:12 AM, mark wrote: Now, cryptsetup gives me the same UUID as I have in /etc/mdadm.conf. The entry in /etc/crypttab looks identical to the RAIDs for root and swap, but nope. Can you post those files somewhere?  I'm confused by the idea that cryptsetup is involved in or using the

Re: [CentOS] Alternative to laptop

2019-07-14 Thread Gordon Messmer
On 7/14/19 5:03 AM, H wrote: Needs to run Centos to be used as a hyper-portable workstation. Please remember to trim your replies: https://fedoraproject.org/wiki/Mailing_list_guidelines#Keep_it_Short ___ CentOS mailing list CentOS@centos.org

Re: [CentOS] Server fails to boot

2019-07-13 Thread Gordon Messmer
On 7/8/19 4:28 AM, Rob Kampen wrote: Warning: /dev/disk/by-id/md-uuid-::: does not exist https://bugzilla.redhat.com/show_bug.cgi?id=1451660 It sounds like your kernels aren't assembling the RAID device on boot, which *might* be related to the above bug if

Re: [CentOS] Have you run "tuned-adm profile throughput-performance" ?

2019-07-05 Thread Gordon Messmer
On 7/5/19 11:48 AM, Gordon Messmer wrote: On 7/4/19 10:18 PM, Steven Tardy wrote: I would also look at power settings in the BIOS and c-state settings in the BIOS and OS as disabling c-states (often enabled by default to meet green/energy star compliance) can make a noticeable performance

[CentOS] Have you run "tuned-adm profile throughput-performance" ?

2019-07-05 Thread Gordon Messmer
On 7/4/19 10:18 PM, Steven Tardy wrote: I would also look at power settings in the BIOS and c-state settings in the BIOS and OS as disabling c-states (often enabled by default to meet green/energy star compliance) can make a noticeable performance difference. I'd be surprised if it did, but

Re: [CentOS] Performance issues/difference of two servers running same task (one is quicker)

2019-07-04 Thread Gordon Messmer
On 7/3/19 11:43 PM, Jobst Schmalenbach wrote: - How can it be that the DELL takes so much longer alltough on the far better hardware? It looks like the DIY system has a CPU that's nearly twice as fast as the Dell's.  The additional CPU in the Dell will run more tasks concurrently, but it

Re: [CentOS] raid 5 install

2019-06-27 Thread Gordon Messmer
On 6/27/19 10:27 AM, Robert Heller wrote: Actually*grub* needs access to /boot to load the kernel. I don't believe that grub can access (software) RAID filesystems. RAID1 is effectively an exception because it is just a mirror set and grub can [RO] access any one of the mirror set elements as a

Re: [CentOS] raid 5 install

2019-06-27 Thread Gordon Messmer
On 6/27/19 6:36 AM, Nikos Gatsis - Qbit wrote: Do I have to consider anything before installation, because the disks are very large? Probably not.  You'll need to use GPT because they're large, but for a new server you probably would need to do that anyway in order to boot under UEFI.

Re: [CentOS] iptables - how to block established connections with fail2ban?

2019-06-27 Thread Gordon Messmer
On 6/25/19 11:41 PM, MRob wrote: When fail2ban block a IP address, established connections are allowed to continue, but with no rule to accept established connections how is that possible? It doesn't look like it would be. 1: Open a connection that will demonstrate the problem later. 2:

Re: [CentOS] Replacing kernel-headers with custom compiled version (from kernel.org) - safe?

2019-06-27 Thread Gordon Messmer
On 6/26/19 4:54 PM, Bagas Sanjaya wrote: So is it safe to install kernel RPMs generated by compilation from kernel.org tarball, or should I stick to manual install? You probably don't need to install the devel package unless you plan to also build third-party kernel modules. You

Re: [CentOS] Disk Performance Issue

2019-06-25 Thread Gordon Messmer
On 6/24/19 8:42 AM, Chris Olson via CentOS wrote: We have a very old Dell desk top machine that has been running CentOS 6 for the past five years.  It received a new, 1 TB disk ... Boot-up this morning lasted about six times as long as usual. Disk access, as indicated by the disk activity light,

Re: [CentOS] CentOS 8 Coming When???

2019-06-07 Thread Gordon Messmer
I've heard that Red Hat offers a very similar operating system, if you need it now. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] system unresponsive

2019-05-22 Thread Gordon Messmer
On 5/22/19 6:57 AM, Scott Silverman wrote: In the past I've found that the console may have blanked (due to time) and when the system locked up/hung it won't unblank. Booting with "consoleblank=0" on the kernel command line will ensure that whatever is printed to the console (oops, panic, etc)

Re: [CentOS] faI2ban detecting and banning but nothing happens

2019-04-29 Thread Gordon Messmer
On 4/29/19 1:44 AM, Gary Stainburn wrote: and the lines are still appearing. Here is my jail.local. (I did also try directly editing jail.conf to update the port commands). [exim] port= 0:65535 If that's all that's in jail.local, then the jail shouldn't be enabled.  They're off by

Re: [CentOS] faI2ban detecting and banning but nothing happens

2019-04-28 Thread Gordon Messmer
On 4/26/19 3:50 AM, Gary Stainburn wrote: I can't remember the other one. I have removed all of the manual amendments so am now basically set up as initially installed. This is my process for fail2ban: 1: "yum install fail2ban"  This installs fail2ban and fail2ban-firewalld. 2: install

Re: [CentOS] Are linux distros redundant?

2019-04-24 Thread Gordon Messmer
On 4/24/19 5:42 AM, Andrew Holway wrote: I just realised that I haven't touched a centos/redhat machine in more than a couple of years. I think that's a very narrow view of what Red Hat does.  They're not just writing rpm spec files and building somone else's code. Red Hat is the largest

Re: [CentOS] Outliner

2019-04-15 Thread Gordon Messmer
On 4/15/19 5:22 AM, H wrote: Suggested earlier but since I do not use e-macs as my programming editor no go. I guess I don't understand what you view as a problem.  If you're looking for a new application, then it logically follows that you aren't using it now.  If you object to

Re: [CentOS] rpmbuild how to know we are building kernel module package

2019-04-12 Thread Gordon Messmer
On 4/12/19 7:04 AM, wuzhouhui wrote: So my question is rpmbuild how to know he is building kernel module package? Based on which condition? I believe the %kernel_module_package macro defined in /usr/lib/rpm/redhat/macros is used to invoke /usr/lib/rpm/redhat/kmodtool, which provides some

Re: [CentOS] Kernel panic after removing SW RAID1 partitions, setting up ZFS.

2019-04-11 Thread Gordon Messmer
On 4/11/19 2:21 PM, Jyrki Tikka wrote: On Wed, 10 Apr 2019 08:38:04 -0700, Benjamin Smith wrote I drove to the site, picked up the machine, and last night found that the problem wasn't anything to do with mdadm, but rather setting a partition to GPT. If you want to boot a BIOS based machine

Re: [CentOS] When will CentOS 8 be available for download?

2019-04-10 Thread Gordon Messmer
On 4/10/19 3:51 PM, Turritopsis Dohrnii Teo En Ming wrote: When will CentOS 8 be available for download? In *the future* /me waves hands Seriously.  The CentOS developers rebuild RHEL, and RHEL 8 isn't available.  We don't know when it will be available.  CentOS 8 certainly won't be

Re: [CentOS] WINE on CentOS 7

2019-04-10 Thread Gordon Messmer
On 4/10/19 9:18 AM, Jerry Geis wrote: 0009:err:winediag:IcmpCreateFile Failed to use ICMP (network ping), this requires special permissions. ... Is there something special to do for network access under wine ??? Try a test other than "ping".  "ping" must be set-uid root or have appropriate

Re: [CentOS] RAID1 boot issue

2019-04-04 Thread Gordon Messmer
On 4/4/19 6:17 AM, Konstantin Msk via CentOS wrote: a drive is unplugged... while the system is not running mdadm will not reassemble the array on boot. Red Hat Bugzilla – Bug 1451660 Write that Fixed In Version:dracut-033-546.el7 That's probably a mistake.  The bug isn't closed. I have

Re: [CentOS] New post message

2019-04-03 Thread Gordon Messmer
On 4/3/19 2:15 AM, Konstantin Msk via CentOS wrote: But if I disable any drive from which RAID1 is built the system crashes, there is a partial boot and as a result the Entering emergency mode. I haven't seen that behavior in the past.  Do you have any logs or console output from that

Re: [CentOS] nobody:nobody

2019-04-03 Thread Gordon Messmer
On 4/3/19 2:17 PM, Mark LaPierre wrote: Content of idmapd.conf: As long as idmapd is *running* it typically doesn't need to be configured specifically. Now one more question.  The imap daemon is a mail server.  How is it that I need a mail server running to make LDAP and NFS work? 

Re: [CentOS] CentOS 7 - AltArch i386 - DVD iso?

2019-03-23 Thread Gordon Messmer
On 3/23/19 10:06 AM, Jonathan Billings wrote: I don’t do unmanaged installs that often, but last I tried, if you boot off and install from a CD/DVD it doesn’t bring up the network by default. That sounds consistent with what I saw.  I don't think there's any reason to call out the Minimal

Re: [CentOS] CentOS 7 - AltArch i386 - DVD iso?

2019-03-22 Thread Gordon Messmer
On 3/22/19 6:53 AM, mark wrote: Johnny, I'm very much against the minimal, given that it doesn't seem to set up networking... It works as expected if I select the network interface and click the toggle button to turn it on in the installer. Is that different from the standard install? 

Re: [CentOS] Testing software on CentOS 7

2019-03-18 Thread Gordon Messmer
On 3/18/19 6:39 PM, H wrote: Think I got it to work now, I needed to add the RUN export ... at the page you linked to. Running "export" in your Dockerfile won't change the image that gets built. I tried running geany in a container on Fedora and had to make two adjustments.  First, the

Re: [CentOS] Testing software on CentOS 7

2019-03-18 Thread Gordon Messmer
On 3/18/19 6:05 PM, H wrote: Thank you, visited that page and tried the above but get the following messages: No protocol specified Geany: cannot open display Can you copy the text of the command you ran and its output from your terminal, and paste that in a reply email? Also, run the

Re: [CentOS] konqueror vs. centos and mathematics

2019-03-17 Thread Gordon Messmer
On 3/17/19 7:47 PM, Michael Hennebry wrote: http://web.cs.ndsu.nodak.edu/~hennebry/Screenshot2019-03-17+21-29-06.png The web site seems to be emitting tex. Presumably something has to translate between tex and image. That said, firefox worked (barely) before I installed texlive. It looks

Re: [CentOS] konqueror vs. centos and mathematics

2019-03-17 Thread Gordon Messmer
On 3/17/19 4:47 PM, Michael Hennebry wrote: Wikipedia seems to use tex, so I installed texlive and texlive-* . Formulas can be composed with tex, but they're displayed as images.  You shouldn't need any special browser support to display formulas.  Can you post a screenshot somewhere?

Re: [CentOS] Testing software on CentOS 7

2019-03-17 Thread Gordon Messmer
On 3/17/19 1:08 PM, H wrote: I am correct in that docker cannot be used, or? If it can be used, what changes would I need to make to be able to run geany from a docker? A google search for "run x11 app in docker" returns http://fabiorehm.com/blog/2014/09/11/running-gui-apps-with-docker/ as

Re: [CentOS] Problem with mdadm, raid1 and automatically adds any disk to raid

2019-02-26 Thread Gordon Messmer
On 2/26/19 6:37 AM, Simon Matter via CentOS wrote: How is it not systemd doing it? Such things didn't happen with pre systemd distributions. The following log is from a CentOS 6 system.  I created RAID devices on two drives.  I then stopped the RAID devices and 'dd' over the beginning of

Re: [CentOS] Problem with mdadm, raid1 and automatically adds any disk to raid

2019-02-25 Thread Gordon Messmer
On 2/24/19 9:01 PM, Jobst Schmalenbach wrote: I tried to delete the MDX, I removed the disks by failing them, then removing each array md0, md1 and md2. I also did dd if=/dev/zero of=/dev/sdX bs=512 seek=$(($(blockdev --getsz /dev/sdX)-1024)) count=1024 Clearing the initial sectors

Re: [CentOS] Restarting nfs-server using systemctl resulted in error

2019-02-25 Thread Gordon Messmer
On 2/25/19 3:18 AM, Nurdiyana Ali wrote: I am having strange issues with NFS server on CentOS 7.2. (Obligatory: "7.2" means you haven't applied patches in a very long time, and probably have a large number of security vulnerabilities on this system as well as bugs you're likely to hit and

Re: [CentOS] elasticsearch connection refused

2019-02-19 Thread Gordon Messmer
On 2/19/19 4:48 AM, Ralf Prengel wrote: telnet localhost or 127.0.0.1 9200 works local on the machine telnet 192.168.242.4 9200 connection refused local on the machine. So it is clear that access from other systems can not work. Set your network address as "network.host" in

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