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by MOHD HOMAIDUR RAHMAN 16 Apr '20

16 Apr '20

-- ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' *M*d* H*omaidur* R**ahman *( Research Scholar ) Lab No. 510, Computational Biophysics Lab. Department of Biotechnology Indian Institute of Technology-Madras Chennai-600 036, India *Mobile No = +91- 7845991785* '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

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Asking again: CentOS 7, KDE, logout needed twice
by mark 15 Apr '20

15 Apr '20

Every single time, no matter if I chose leave->logout from the start menu, or from ctrl-alt-delete, it does *not* log me out, but restarts KDE. The second time, doesn't matter which way I go, it *does* log me out. Anyone got a clue? Googling hasn't found anything.... mark

2 1

bcc tools and bpftrace packages misbuilt?
by Eric Zuck 15 Apr '20

15 Apr '20

After upgrading to 8.1.1911, bcc-tools and bpftrace seem to be broken. Current package versions I have: bpftrace-0.9-3.el8.x86_64 and bcc-tools-0.8.0-4.el8.x86_64 Both of these seem to be pulling in LLVM version 7, rather than the version 8 that is in 8.1.1911: [root@localhost ~]# bpftrace bpftrace: error while loading shared libraries: libclangFrontend.so.7: cannot open shared object file: No such file or directory [root@localhost ~]# /usr/share/bcc/tools/opensnoop Traceback (most recent call last): File "/usr/share/bcc/tools/opensnoop", line 19, in <module> from bcc import ArgString, BPF File "/usr/lib/python3.6/site-packages/bcc/__init__.py", line 27, in <module> from .libbcc import lib, bcc_symbol, bcc_symbol_option, _SYM_CB_TYPE File "/usr/lib/python3.6/site-packages/bcc/libbcc.py", line 17, in <module> lib = ct.CDLL("libbcc.so.0", use_errno=True) File "/usr/lib64/python3.6/ctypes/__init__.py", line 343, in __init__ self._handle = _dlopen(self._name, mode) OSError: libclangFrontend.so.7: cannot open shared object file: No such file or directory Looking through the CentosBug tracker, I see https://bugs.centos.org/view.php?id=16922: qt5-doctools-5.11.1-9.el8 from CentOS CR/8-stream is misbuilt https://bugs.centos.org/view.php?id=16930: rust-1.37.0-1.module_el8.1.0+246+1f1fd47e built against old libLLVM-7.so So, I gather that bcc-tools and bpftrace are not the only packages affected by an LLVM mismatch. Short of downloading and rebuilding the packages, does anyone have any suggestions about workarounds? Regards, -EricZ

1 1

Samba Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE SessSetup = -13
by Ralf Prengel 15 Apr '20

15 Apr '20

Hallo, perhaps someone hat a hint vor me. My centos 7 samba Server ist working fine using Win10 Clienst with Domaine-Integration. Shares are browseable and access is possible with a sepearte login. My problem: I want to mount this shares from a centos7 client. This fails with the following mesages. I tried several variations in my fstab found in the internet. Can anyone give me a hint to to access an samba-server that is working fine against a Win2016 Domain-Cotroller? Thanks Rakf Apr 15 05:37:47 6805ca01a270 kernel: Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE Apr 15 05:37:47 6805ca01a270 kernel: CIFS VFS: Send error in SessSetup = -13 Apr 15 05:37:47 6805ca01a270 kernel: CIFS VFS: cifs_mount failed w/return code = -13 Apr 15 05:37:52 6805ca01a270 kernel: Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE Apr 15 05:37:52 6805ca01a270 kernel: CIFS VFS: Send error in SessSetup = -13 Apr 15 05:37:52 6805ca01a270 kernel: CIFS VFS: cifs_mount failed w/return code = -13 smb.conf [global] Workgroup = COMLINE security = ads encrypt passwords = yes passdb backend = tdbsam realm = comline.de printing = cups printcap name = cups load printers = yes cups options = raw map to guest = bad user [share_gov_srvgovrcpbuild_clients] comment = share für gov projekt rcpbuild clients path = /mnt/raid01/share_volumes_gov_srvgovrcpbuild_clients_smb browseable = yes comment = Share für alle guest ok = yes writeable = yes read only = no force user = root create mask = 0777 directory mask = 0777 public = yes

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Centos 7: cups-pdf Postprocessing prevented by selinux :(
by hw 15 Apr '20

15 Apr '20

Hi, how can I make it so that printing to a cups PDF printer can successfully run the postprocessing script I specified in /etc/cups/cups-pdf.conf? It does work with 'sentenforce permissve', and after creating and installing some selinux modules from audit.log entries, it still doesn't work, and there doesn't seem to be anything else that might prevent the postprocessing script from being run.

2 1

Red Hat Enterprise Linux 8.2 Beta now available
by Turritopsis Dohrnii Teo En Ming 14 Apr '20

14 Apr '20

Link: https://www.redhat.com/en/blog/red-hat-enterprise-linux-82-beta-now-availab… -----BEGIN EMAIL SIGNATURE----- The Gospel for all Targeted Individuals (TIs): [The New York Times] Microwave Weapons Are Prime Suspect in Ills of U.S. Embassy Workers Link: https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html ******************************************************************************************** Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic Qualifications as at 14 Feb 2019 and refugee seeking attempts at the United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 2019) and Australia (25 Dec 2019 to 9 Jan 2020): [1] https://tdtemcerts.wordpress.com/ [2] https://tdtemcerts.blogspot.sg/ [3] https://www.scribd.com/user/270125049/Teo-En-Ming -----END EMAIL SIGNATURE-----

1 0

SELinux denies login
by Gordon Messmer 14 Apr '20

14 Apr '20

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: denied { unlink } for pid=28735 comm="krb5_child" name="krb5cc_1985100122_oxJnH7" dev="dm-0" ino=67978294 scontext=system_u:system_r:sssd_t:s0 tcontext=system_u:object_r:tmp_t:s0 tclass=file permissive=0 The policy allows sssd_t to unlink user_tmp_type: sesearch -s sssd_t --allow: allow sssd_t user_tmp_type : file { ioctl read write create getattr setattr lock relabelfrom relabelto append unlink link rename open } ; Is the problem that the credential cache files in /tmp are being created with the wrong label, or is there some other problem I'm not seeing?

1 0

CentOS 8 NIS
by Mark LaPierre 13 Apr '20

13 Apr '20

Hey all, Does anyone know where I can get NIS for CentOS 8? -- _ °v° /(_)\ ^ ^ Mark LaPierre Registered Linux user No #267004 https://linuxcounter.net/ ****

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Display system logs in chroot ?
by kikinovak 13 Apr '20

13 Apr '20

Hi, This morning my day began quite badly, since my main production server wasn't responsive anymore. For public hosting I'm using a "Dedibox Pro" server at the french provider Online that's recently been acquired by Scaleway. I'm currently managing half a dozen public servers at that provider, all running CentOS 7. For debugging purposes, Online's web console enables you to boot the machine into a live rescue system, in that case Ubuntu 18.04. Once I managed to connect via SSH to the live system, here's what I did. Mount the root partition : # mount /dev/sda2 /mnt Mount the /boot partition : # mount /dev/sda1 /mnt/boot Then : # mount --rbind /proc /mnt/proc # mount --rbind /dev /mnt/dev # mount --rbind /sys /mnt/sys And then I chroot into the system : # chroot /mnt /bin/bash I had networking in the chroot environment. I tried to disable a handful of services like fail2ban and firewalld to begin with, but systemctl won't run in a chroot. So what I did was simply remove everything related to fail2ban and firewalld. Next thing was to look at the system logs to know what went wrong on startup, but I don't know how to do that from within a chroot. Any suggestions? Cheers, Niki PS : sorry for bad formatting. Since the unresponsive server is also running all my mails, I had to setup a Protonmail account to post on this list. Sent with [ProtonMail](https://protonmail.com) Secure Email.

2 2

Zoom?
by mark 11 Apr '20

11 Apr '20

Hi, folks, After I did a complete reinstall of current 7, with KDE instead of minimal, I'm mostly ok... except for Zoom. Has anyone gotten sound working with firefox? I get video, but it keeps claiming that my browser (the default firefox) can't access the system sound. Given that even as I type this, I'm streaming WUMB through its player.... I have noScript, but I enabled everything (except google-analytics), and no joy. I'd *really* rather use my browser than trust their app.... mark

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