Discuss April 2019

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89 participants
83 discussions

HERE document in docker script file
by H 04 May '19

04 May '19

I am trying to use a HERE document in a docker script file to generate a text file but must be doing something wrong since I get a warning message that I did not expect: EOF: line 6: warning: here-document at line 0 delimited by end-of-file (wanted `EOF') This is the sample script I am testing in my docker file: RUN bash -c "$(/bin/echo -e "cat << 'EOF' | tee -a /test.txt \ \n<test> \ \n someting here \ \n something else here \ \n</test>")" \ EOF Can anyone see what is wrong in the above statement? Thanks.

3 4

faI2ban detecting and banning but nothing happens
by Gary Stainburn 30 Apr '19

30 Apr '19

I've followed one of the pages on line specifically for installing fail2ban on Centos 7 and all looks fine. I've added a fail regex to /etc/fail2ban/filter.d/exim.conf as suggested on another page: \[<HOST>\]: 535 Incorrect authentication data which appears to be successfully matchnig lines in /var/log/exim/mail.log such as 2019-04-19 13:06:10 dovecot_plain authenticator failed for ([185.222.209.71]) [185.222.209.71]: 535 Incorrect authentication data /var/log/fail2ban.log, and the generarted emails all say that the regex is working and the IP addresses are getting banned. 2019-04-19 13:06:32,461 fail2ban.filter [21954]: INFO [dovecot] Found 45.227.253.99 2019-04-19 13:06:32,607 fail2ban.actions [21954]: NOTICE [dovecot] Ban 45.227.253.99 2019-04-19 13:06:32,954 fail2ban.filter [21954]: INFO [dovecot] Found 45.227.253.99 2019-04-19 13:06:36,664 fail2ban.filter [21954]: INFO [dovecot] Found 185.222.209.71 2019-04-19 13:07:16,973 fail2ban.actions [21954]: NOTICE [dovecot] Unban 185.211.245.198 2019-04-19 13:07:42,108 fail2ban.actions [21954]: NOTICE [dovecot] Unban 185.234.217.221 2019-04-19 13:08:06,475 fail2ban.filter [21954]: INFO [dovecot] Found 141.98.80.32 2019-04-19 13:08:11,299 fail2ban.filter [21954]: INFO [dovecot] Found 185.234.217.162 2019-04-19 13:08:12,249 fail2ban.actions [21954]: NOTICE [dovecot] Ban 185.234.217.162 2019-04-19 13:08:16,803 fail2ban.filter [21954]: INFO [dovecot] Found 141.98.80.32 2019-04-19 13:08:22,092 fail2ban.filter [21954]: INFO [dovecot] Found 185.234.217.221 2019-04-19 13:09:18,178 fail2ban.filter [21954]: INFO [dovecot] Found 185.211.245.198 2019-04-19 13:09:30,522 fail2ban.filter [21954]: INFO [dovecot] Found 185.211.245.198 2019-04-19 13:09:30,752 fail2ban.actions [21954]: NOTICE [dovecot] Ban 185.211.245.198 2019-04-19 13:10:48,248 fail2ban.filter [21954]: INFO [dovecot] Found 185.211.245.198 However, once an IP address is banned, it continues to appear in /var/log/exim/main.log which would imply that the ban action is not working. (Also, I don't understand why it's matching against dovecont ewhen the regex is in exim.conf) I've found lots of pages relating to regex errors which this obviously isn't but I can't seem to find pages about why the ban doesn't work. Does anyone have any ideas?

5 16

Who is responsible to load NIC driver when boot up
by wuzhouhui 29 Apr '19

29 Apr '19

Hi I have a small question about NIC driver (e.g. i40e) loading. Who is responsible to load i40e driver? And how does he knows we should load i40e, instead of ixgbe? Thanks.

3 4

help install
by Doug 28 Apr '19

28 Apr '19

Hope this does not duplicate to the same place, but I sent the following message to a different input. Here it is: I have tried 4 or 5 times to install Centos 7,* and it seems to install, but it won't boot to KDE or any desktop. It comes up in text mode, and nothing I do will get it into a kde mode. Or any graphic mode, that I know of. I have enabled a root password, and a user password. I am trying to install on a SSD of 250 GB. The installation appears to work, but it boots to black screen with white letters. It appears to accept some BASH commands, but it does not respond to startx or startkde. It appears to respond to su, but that doesn't help. (Or sudo, either, but I'm used to su.) I have tried to clear the SSD completely so there are no partitions on it, not even the Windows 1GB boot partition. (I had that, but Centos didn't work so I eliminated it.) * I downloaded a number of tries and burned each to DVD, (one appeared to be defective) but none of them worked. It would help, perhaps, if the downloads included a verification. I really want an RPM system with kde, and I used PCLOS for years, but the latest version is a great disappointment, and the last upgrade crashed the machine, which is why I, having tried their April release, I am coming to CentOS--or trying to. I don't know what information I can provide, but the bare-bones of the system are this: MOBO: Foxxconn G41MXE/G41MXS-K BIOS: American Megatrends id:0 version 080015, date 10/14/210 CPU: Intel Cor2Duo E8600 @ 3.33GHz Width 64 bits Closck 333MHz Memory 8Gib Display: NVidia GF 116 All of this worked perfectly with PCLOS for many years. Please help! Thanx--doug

4 6

"Untrusted application launcher (desktop launchers)"
by Robert Heller 28 Apr '19

28 Apr '19

I am having this problem on Ubuntu 18.04 -- I manage a batch of desktop machines with some convience desktop launchers, which gnome3 insists are "untrusted". With some general websearching reveals that this is a *GNome3* so-called "security" issue (https://gitlab.gnome.org/GNOME/nautilus/commit/1630f5348). I found a thread on the CentOS Forums (I don't have an account there), where another sysadmin is strugling with this issue: https://www.centos.org/forums/viewtopic.php?f=47&t=65864&start=10 If anyone has come up with a script that can be dropped into ~/.config/autostart/ to "fix" this "feature" of gnome3 I would be interested in it. -- Robert Heller -- 978-544-6933 Deepwoods Software -- Custom Software Services http://www.deepsoft.com/ -- Linux Administration Services heller(a)deepsoft.com -- Webhosting Services

2 5

update failure
by Emmett Culley 28 Apr '19

28 Apr '19

When I attempted to update a remote server via SSH last night the UPS on my local workstations failed, causing the SSH session to get dropped in the middle of the upgrade process. This morning I am not able to complete the update. When it failed when I tried to run it again thins morning I did the suggested things like "dnf clean all" and "rpm -rebuilddb", and I still get this after it downloads the packages again: Running transaction test The downloaded packages were saved in cache until the next successful transaction. You can remove cached packages by executing 'dnf clean packages'. Error: Transaction check error: file /usr/lib64/libz.so.1.2.7 from install of zlib-1.2.7-18.el7.x86_64 conflicts with file from package zlib-1.2.7-17.el7.x86_64 file /usr/lib64/libpcre.so.1.2.0 from install of pcre-8.32-17.el7.x86_64 conflicts with file from package pcre-8.32-15.el7_2.1.x86_64 file /usr/lib64/libpcre16.so.0.2.0 from install of pcre-8.32-17.el7.x86_64 conflicts with file from package pcre-8.32-15.el7_2.1.x86_64 file /usr/lib64/libpcre32.so.0.0.0 from install of pcre-8.32-17.el7.x86_64 conflicts with file from package pcre-8.32-15.el7_2.1.x86_64 file /usr/lib64/libpcrecpp.so.0.0.0 from install of pcre-8.32-17.el7.x86_64 conflicts with file from package pcre-8.32-15.el7_2.1.x86_64 file /usr/lib64/libpcreposix.so.0.0.1 from install of pcre-8.32-17.el7.x86_64 conflicts with file from package pcre-8.32-15.el7_2.1.x86_64 file /usr/lib64/libform.so.5.9 from install of ncurses-libs-5.9-14.20130511.el7_4.x86_64 conflicts with file from package ncurses-libs-5.9-13.20130511.el7.x86_64 file /usr/lib64/libformw.so.5.9 from install of ncurses-libs-5.9-14.20130511.el7_4.x86_64 conflicts with file from package ncurses-libs-5.9-13.20130511.el7.x86_64 Plus many more lines of the same ilk. Then finally: Error Summary ------------- and nothing else. How can I clean this up? Note that it had been a couple of months since I'd last done the update process. This server is running three VM's and so I am a bit hesitant to make another move without some advice. Emmett

3 5

CentOS 7, KDE, Dolphin and MTP support
by Nicolas Kovacs 28 Apr '19

28 Apr '19

Hi, It looks like KDE's file manager Dolphin doesn't support MTP under CentOS 7. When I plug in an MTP device like my Nikon camera or an Android phone, Digikam shows its content OK, but Dolphin seems to ignore it. For now, my custom CentOS 7 + KDE desktop meets about 99 % of my needs. Now I've decided to tackle the remaining 1 %. Yesterday for example, I managed to correct the missing RAR support in the Ark archive manager, so I fetched the SRPM and rebuilt it to add RAR archive support, and it works perfectly now. I'd like to try something similar with Dolphin's MTP support, which seems to have been disabled. According to rpm -qif /usr/bin/dolphin, it's part of the kde-baseapps package. I fetched the SRPM and experimented with it, but apparently, enabling/disabling MTP does not happen here. So my question here: which package in KDE 4 is responsible for MTP support in Dolphin ? Cheers, Niki -- Microlinux - Solutions informatiques durables 7, place de l'église - 30730 Montpezat Site : https://www.microlinux.fr Mail : info(a)microlinux.fr Tél. : 04 66 63 10 32 Mob. : 06 51 80 12 12

1 0

Can't find SRPMS for CentOS
by Nicolas Kovacs 27 Apr '19

27 Apr '19

Hi, I have to rebuild a handful of CentOS packages for some extra functionality. So I setup a build environment in a virtual machine, and right now I'm trying to find the SRPMS. I enabled the repositories listed in /etc/yum.repos.d/CentOS-Sources.repo and then tried this: [microlinux@buildbox:~] $ yumdownloader --source ark Loaded plugins: fastestmirror, langpacks, priorities Enabling epel-source repository Loading mirror speeds from cached hostfile * nux-dextop: mirror.li.nux.ro 9238 packages excluded due to repository priority protections No source RPM found for ark-4.10.5-4.el7.x86_64 Nothing to download This happens with pretty much every package I try as an argument. What am I doing wrong? Cheers, Niki -- Microlinux - Solutions informatiques durables 7, place de l'église - 30730 Montpezat Site : https://www.microlinux.fr Mail : info(a)microlinux.fr Tél. : 04 66 63 10 32 Mob. : 06 51 80 12 12

2 1

mariadb: How to delete foreign key constraint from non-existing table?
by hwilmer 27 Apr '19

27 Apr '19

Hi, somehow phpmyadmin messed things up when I was trying to modify a table. The table disappeared, and now it's impossible to re-create it: MariaDB [time]> create table etikettend_metainfo (userID integer(6) unsigned, stationsnummer integer(4) unsigned, primary key (userID)); ERROR 1005 (HY000): Can't create table `time`.`etikettend_metainfo` (errno: 150 "Foreign key constraint is incorrectly formed") MariaDB [time]> show tables like 'etikettend%'; +------------------------------+ | Tables_in_time (etikettend%) | +------------------------------+ | etikettend_etikettentypen | | etikettend_stationen | +------------------------------+ 2 rows in set (0.001 sec) Since the table has vanished, I'm finding myself unable to remove the key constraints, and trying to disable them was also unsuccessful. It is not necessary to recover the vanished table because it had just been created and was still empty anyway. But how do I fix this?

2 2

Re: [CentOS] UEFI and PXE
by isdtor 26 Apr '19

26 Apr '19

James Peltier writes: > Welcome to the world of UEFI. Certain UEFI versions have added additional support for things like the next-server option to actually be honoured. In some versions this _is_ in fact _ignored_ and you are expected to place the image on the server that answers the DHCP response. > > I have been successfully booting both legacy BIOS and UEFI machines for at least 3 years and know the pains. Thanks. This appears to be the case here. The machine is a Dell 11G server. I upgraded all the firmwares with dsu, BIOS was at latest already. After dsu, I upgraded the NIC option ROM with bootutil (I'm not using the builtin BRCM NICs, but an Intel X520-T2 card). That's all I can do on the hardware front. And it *still* shows the same behaviour. Moving tftp server it is then ...

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Discuss April 2019