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Package of GCC 12 on CentOS 7
by david allan finch 20 Jun '22

20 Jun '22

Is there an rpm of GCC 12 (or at least higher than 9) available to download and install, or is it a case of downloading and build from the source yourself? Thanks.

4 6

nodejs 18 on centos 7
by Jerry Geis 18 Jun '22

18 Jun '22

I am currently running V14.19.3 of nodejs on Centos 7 I found this article: https://computingforgeeks.com/install-node-js-on-centos-rhel-rocky-linux/ to update to 18 I import the repo just fine. when I do : yum -y install nodejs I get : Package 2:nodejs-14.19.3-1nodesource.x86_64 already installed and latest version Nothing to do how do I install 18? more /etc/yum.repos.d/nodesource-el7.repo [nodesource] name=Node.js Packages for Enterprise Linux 7 - $basearch baseurl=https://rpm.nodesource.com/pub_18.x/el/7/$basearch failovermethod=priority enabled=1 gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/NODESOURCE-GPG-SIGNING-KEY-EL [nodesource-source] name=Node.js for Enterprise Linux 7 - $basearch - Source baseurl=https://rpm.nodesource.com/pub_18.x/el/7/SRPMS failovermethod=priority enabled=0 gpgkey=file:///etc/pki/rpm-gpg/NODESOURCE-GPG-SIGNING-KEY-EL gpgcheck=1 jerry

2 2

open source network diagnostic tools
by Christopher Wensink 12 Jun '22

12 Jun '22

Everyone, From time to time on our network we experience a pause where it seems like everything just hesitates for a time, this could be 2-10 seconds, then communications resume and everything is normal again. I suspect that there one machine that is occasionally sending out bad packets or is flooding the network when it shouldn't, but I don't know for sure. I've tried scanning with angry ip scanner to confirm IP addresses are set and communicating as documented. I've tried running captures with wireshark to try to identify one culprit but nothing is sticking out. I've tried tcpdump to see if something obvious is placed there, but it's a flood of information and it's difficult to tell what (if anything) is a problem and what is not. I'm also working on setting up icinga for monitoring all servers to see if that provides insight. What other tools / tactics would you use to identify the core cause of these kinds of intermittent pauses? Chris -- Christopher Wensink IS Administrator Five Star Plastics, Inc 1339 Continental Drive Eau Claire, WI 54701 Office: 715-831-1682 Mobile: 715-563-3112 Fax: 715-831-6075 cwensink(a)five-star-plastics.com www.five-star-plastics.com

3 2

Samba 4.16 hard-crashes
by lejeczek 10 Jun '22

10 Jun '22

Hi guys. Does anybody see this/similar issue, with Samba (from centos-release-samba416-1.0-1.1.el8.noarch) under IPA? (also Samba uses GlusterFS' libgfapi - samba-vfs-glusterfs-4.16.1-100.el8s.x86_64) -> $ systemctl restart smb.service Starting Samba SMB Daemon... [2022/06/08 19:17:32.937351, 0, pid=49122] ../../source3/smbd/server.c:1741(main) smbd version 4.16.1 started. Copyright Andrew Tridgell and the Samba Team 1992-2022 [2022/06/08 19:17:32.960756, 0, pid=49122] ../../lib/util/fault.c:172(smb_panic_log) =============================================================== [2022/06/08 19:17:32.960925, 0, pid=49122] ../../lib/util/fault.c:176(smb_panic_log) INTERNAL ERROR: Signal 6: Aborted in pid 49122 (4.16.1) [2022/06/08 19:17:32.960981, 0, pid=49122] ../../lib/util/fault.c:181(smb_panic_log) If you are running a recent Samba version, and if you think this problem is not yet fixed in the latest versions, please consider reporting this bug, see https://wiki.samba.org/index.php/Bug_Reporting [2022/06/08 19:17:32.961022, 0, pid=49122] ../../lib/util/fault.c:182(smb_panic_log) =============================================================== [2022/06/08 19:17:32.961056, 0, pid=49122] ../../lib/util/fault.c:184(smb_panic_log) PANIC (pid 49122): Signal 6: Aborted in 4.16.1 [2022/06/08 19:17:32.961647, 0, pid=49122] ../../lib/util/fault.c:288(log_stack_trace) BACKTRACE: 15 stack frames: #0 /lib64/libsamba-util.so.0(log_stack_trace+0x34) [0x7f41bbc0c7c4] #1 /lib64/libsamba-util.so.0(smb_panic+0xd) [0x7f41bbc0ca1d] #2 /lib64/libsamba-util.so.0(+0xeab9) [0x7f41bbc0cab9] #3 /lib64/libpthread.so.0(+0x12ce0) [0x7f41bb83bce0] #4 /lib64/libc.so.6(gsignal+0x10f) [0x7f41bb2a4a4f] #5 /lib64/libc.so.6(abort+0x127) [0x7f41bb277db5] #6 /lib64/libtalloc.so.2(+0x2f40) [0x7f41a34a7f40] #7 /lib64/libtalloc.so.2(+0x336c) [0x7f41a34a836c] #8 /usr/lib64/samba/pdb/ipasam.so(+0x11c2f) [0x7f41a38e7c2f] #9 /lib64/libsamba-passdb.so.0(make_pdb_method_name+0xb2) [0x7f41bbdae2f2] #10 /lib64/libsamba-passdb.so.0(+0x1d604) [0x7f41bbdae604] #11 /lib64/libsamba-passdb.so.0(initialize_password_db+0x1d) [0x7f41bbdb096d] #12 /usr/sbin/smbd(main+0x5d9) [0x55c945bbcf09] #13 /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f41bb290ca3] #14 /usr/sbin/smbd(_start+0x2e) [0x55c945bbe6de] [2022/06/08 19:17:32.962008, 0, pid=49122] ../../source3/lib/dumpcore.c:318(dump_core) coredump is handled by helper binary specified at /proc/sys/kernel/core_pattern smb.service: Main process exited, code=dumped, status=6/ABRT smb.service: Failed with result 'core-dump'. Failed to start Samba SMB Daemon. For me all this, IPA's integrated Samba with GlusterFS, worked problem-free with 4.15 & earlier versions, so prior to 4.16 update which update brakes everything I believe. thanks, L.

1 0

CentOS-announce Digest, Vol 205, Issue 1
by centos-announce-request＠centos.org 08 Jun '22

08 Jun '22

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit https://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. [Infra] : Planned outage : git.centos.org (Fabian Arrotin) ---------------------------------------------------------------------- Message: 1 Date: Wed, 8 Jun 2022 07:24:38 +0200 From: Fabian Arrotin <arrfab(a)centos.org> To: "The CentOS developers mailing list." <centos-devel(a)centos.org>, centos-announce(a)centos.org, CentOS mailing list <centos(a)centos.org> Subject: [CentOS-announce] [Infra] : Planned outage : git.centos.org Message-ID: <2e632140-7589-f0bb-97aa-33ac2d74e2be(a)centos.org> Content-Type: text/plain; charset="utf-8"; Format="flowed" Due to a scheduled pagure upgrade, we'll have to move the existing Pagure instance (aka https://git.centos.org) to a new node. Migration is scheduled for """"Monday June 13rd, 7:00 am UTC time"""". You can convert to local time with $(date -d '2022-06-13 07:00 UTC') The expected "downtime" is estimated to ~60 minutes , time needed to : - backup/restore last DB dump - import and convert DB schema for newer pagure version - last data (sources in lookaside cache and git repositories) sync - verify service and switch public IP to new host. Important note wrt that migration is that we're moving from pagure 5.8 running on CentOS 7 to pagure 5.13 on RHEL 8. It means it's a new host and so sshd host keys will change (we didn't want to import older host keys to comply with newer algo) The new fingerprint will be displayed at usual place (https://git.centos.org/ssh_info) but it only matters for SIGs users pushing to specific projects/branches over ssh. For people pulling through https, nothing changes. Here are in advance the new fingerprints : rsa=3072 SHA256:qeSehpwh3X7HI0D/jF7N4qZcergdr9tUCdaZ2EIdiLc (RSA) rsa_md5=3072 MD5:a9:a1:ba:83:96:71:28:ca:86:19:c0:5d:4f:48:9f:63 (RSA) ecdsa=256 SHA256:vIRsg5g/t/7ucYP4NKTkcPJdE7CWbFQVInscthHKihU (ECDSA) ecdsa_md5=256 MD5:8f:40:35:4f:b9:43:60:d9:09:c0:5f:80:52:69:c8:8d (ECDSA) Also worth knowing that we also present a signed cert for sshd host keys, so if you already trust our CA (https://github.com/CentOS/ansible-role-sshd/blob/master/defaults/main.yml#L…) in your ~/.ssh/known_hosts file, you'll not even have to accept new key Thanks for your understanding and patience. on behalf of the Infra team, -- Fabian Arrotin The CentOS Project | https://www.centos.org gpg key: 17F3B7A1 | twitter: @arrfab

1 0

NFS Server Centos7
by Erik Frangež 07 Jun '22

07 Jun '22

Hi guys, we are setting NFS server on CentOS7 system. Everything working OK except speed, speed over NFS very drop... if we run dd command directly on server we are getting speed around 1,4Gbps, if we run from client connected to NFS is 200Mbps. Do you have maybe some advice what we need to check? Thank you! Best, Erik

6 5

C7 pam_oath.so changes group ownership of system file
by Tom Yates 04 Jun '22

04 Jun '22

I'm using pam_oath.so to control sudo access. The following line appears in my /etc/pam.d/sudo: auth sufficient pam_oath.so usersfile=/etc/users.oath window=5 digits=8 It works well, and has done since time out of mind. I've recently noticed, however, that having a user authenticate via a HOTP OATH token not only causes the /etc/users.oath file to be updated (which makes sense, the stored counter needs to be incremented) but also have its group-ownership changed to the primary group of the last user who sudoed. The file has no group read- or writeability, but it still strikes me as weird, and if the group modes were not -rwx, it might be a vulnerability. Does anyone else use HOTP OATH via PAM, and see this? Is there a good reason for it? [me@dormouse ~]$ ls -la /etc/users.oath -rw-------. 1 root root 550 Jun 4 10:31 /etc/users.oath [me@dormouse ~]$ sudo -l One-time password (OATH) for `me': [...] User me may run the following commands on dormouse: (ALL) ALL [me@dormouse ~]$ ls -la /etc/users.oath -rw-------. 1 root me 550 Jun 4 10:33 /etc/users.oath -- Tom Yates - https://www.teaparty.net

1 0

Centos 7 guest on virt-manager
by Jerry Geis 04 Jun '22

04 Jun '22

Hello - I am running Centos 7 virt-manager which I have used for years. Trying to install Ubuntu 22.04 as a guest. I have set up the CDRom - even disconnected and reset it - but it never boots the CDROM ??? Why ? It just defaults back to the OS that is already loaded. I'm confused. Why don't it boot the CDROM. I event set the boot options to BOOT CDROM and unchecked everything else. I have the VM machine set for secure boot. Thanks Jerry

2 1

Update RPM GPG key for EL9
by Orion Poplawski 02 Jun '22

02 Jun '22

Looks like the GPG key we use to sign our RPMs is not longer good with EL9: # rpm --import RPM-GPG-KEY-nwra error: RPM-GPG-KEY-nwra: key 1 import failed gpg key info: sec rsa2048/35DDB0B86218AC2F created: 2017-08-16 expires: never usage: SC trust: ultimate validity: ultimate ssb rsa2048/6A7FBC1E9DB22E8E created: 2017-08-16 expires: never usage: E Can someone explain what I need to do to make things compatible with EL9? Thank you! -- Orion Poplawski IT Systems Manager 720-772-5637 NWRA, Boulder/CoRA Office FAX: 303-415-9702 3380 Mitchell Lane orion(a)nwra.com Boulder, CO 80301 https://www.nwra.com/

2 4

centos 7 sendmail on AWS
by Jerry Geis 02 Jun '22

02 Jun '22

I am trying to get email out of AWS image to google on port 587. When I use telnet it connects - so 587 is a valid path... telnet smtp-relay.gmail.com 587 Trying 142.250.112.28... Connected to smtp-relay.gmail.com. Escape character is '^]'. 220 smtp-relay.gmail.com ESMTP l15-20020a17090a150f00b001dfac278995sm682651pja.12 - gsmtp ^]quit When I run interactive session: sendmail -Am -v -t To: X@Y From: X@Y Subject: test X@Y... Connecting to aspmx.l.google.com. port 587 via esmtp... sendmail.mc has define(`RELAY_MAILER_ARGS', `TCP $h 587')dnl define(`ESMTP_MAILER_ARGS', `TCP $h 587')dnl define(`RELAY_MAILER', `esmtp')dnl define(`null_client', `smtp-relay.gmail.com.') I dont understand why 587 is not connecting. It connects on the manual telnet. It does not connect otherwise. What might I be missing? Jerry

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