Re: [CentOS] [CentOS-announce] CESA-2018:1318 Important CentOS 7 kernel Security Update

2018-05-31 Thread Noam Bernstein
Hi all - should I be surprised to be receiving these notifications today when a 
newer version, 3.10.0-862.3.2, corresponding to
https://access.redhat.com/errata/RHSA-2018:1629
appears to already be available from CentOS ‘yum update’
Installing:
 kernel x86_64  
3.10.0-862.3.2.el7  updates46 M


Noam

> On May 30, 2018, at 2:29 PM, Johnny Hughes  wrote:
> 
> 
> CentOS Errata and Security Advisory 2018:1318 Important
> 
> Upstream details at : https://access.redhat.com/errata/RHSA-2018:1318
> 
> The following updated files have been uploaded and are currently 
> syncing to the mirrors: ( sha256sum Filename ) 
> 
> x86_64:
> af10287508a7362f9c018b0e6c59ba7bc608260adff8bacbbd9ece097f74742b  
> kernel-3.10.0-862.2.3.el7.x86_64.rpm
> 044a2935ccb02d2dfcad72050d443faca89ca41cc0713a8188ea415e81feefe9  
> kernel-abi-whitelists-3.10.0-862.2.3.el7.noarch.rpm
> 96b5ec7ac81ebb87b46745f3e363e5c0b5de3c71aeb9043c61dc09ba1d2f73b5  
> kernel-debug-3.10.0-862.2.3.el7.x86_64.rpm
> c9543022f7d4d7c2b9e62dbbb3b7b1eb60a1149733be8e1f79bf91f3aebb93d3  
> kernel-debug-devel-3.10.0-862.2.3.el7.x86_64.rpm
> ac64e0995558acf3874b2ccbdce8f3b8aae2b6d494256c4bf1ae093aec0f1c18  
> kernel-devel-3.10.0-862.2.3.el7.x86_64.rpm
> 9f8d0640aaee8ae074d92c72da51f4f9c0eb0280d7cb27a4f84ad307ff3a9a62  
> kernel-doc-3.10.0-862.2.3.el7.noarch.rpm
> 8bf0391255899698ef9da2b9b8f0bc7f12bd683d00dca21b1495342401409c47  
> kernel-headers-3.10.0-862.2.3.el7.x86_64.rpm
> b2cf2333d02f582c8e39f6f3b72470ede6d1226c30d36ee4db264b2460f763fe  
> kernel-tools-3.10.0-862.2.3.el7.x86_64.rpm
> 9e1a49326b8abb3167ec5e047bef4ebbc805908e18740e34c80bbc6f89b63fa1  
> kernel-tools-libs-3.10.0-862.2.3.el7.x86_64.rpm
> 470c6a6029fb88156f971d14a30543f64224efeb7be14b5eacf83be45a656290  
> kernel-tools-libs-devel-3.10.0-862.2.3.el7.x86_64.rpm
> 58f967b393f7aabeec2ceba4f381efffea0a8bed2947c126519ba4ee771cf377  
> perf-3.10.0-862.2.3.el7.x86_64.rpm
> a5fdba3a8ea30fec1298c121bf30a7d1e814bcfaec868c708c9d403cc838421f  
> python-perf-3.10.0-862.2.3.el7.x86_64.rpm
> 
> Source:
> 6c7186a7c985cdac3abf640219cd10124494e900c22aafab163b95fe10b25b46  
> kernel-3.10.0-862.2.3.el7.src.rpm
> 
> 
> 
> -- 
> Johnny Hughes
> CentOS Project { http://www.centos.org/ }
> irc: hughesjr, #cen...@irc.freenode.net
> Twitter: @JohnnyCentOS
> 
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LABORATORY
Noam Bernstein, Ph.D.
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[CentOS] CentOS 7.5 gui login root only

2018-05-31 Thread isdtor
Taking first steps on CentOS 7 1804.

Logging into the Gnome/Gnome classic desktop from gdm works only for root. For 
other users, the screen flashes and the login screen returns. KDE/Plasma login 
is successful but ends up with a black screen with mouse pointer while all 
desktop processes appear to be running.

The CentOS 7 system is running in a CentOS6 KVM virtual machine, which may be 
the problem. I have no physical machine for testing right now.

These logins work for non-root users when the system is built from the CentOS 7 
DVD. The non-working installation stems from a kickstart install which 
essentially includes a much larger number of packages, some 6k vs. 2.5k from 
DVD install). Maybe there are conflicts, but I have not been able to isolate 
anything.

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[CentOS] Definitive guide to setting up FTPIS on vsftpd

2018-05-31 Thread Frank M. Ramaekers
I have a new CentOS 7.4 (recently upgraded to 7.5) system that I have been 
struggling with in configuring vsftpd for FTPS Implicit (port 990).
(The latest instructions I've used are at: 
https://www.unixmen.com/configure-vsftpd-ssltls-centos-7/)

Using Filezilla client, I get:

Error:  GnuTLS error -15: An unexpected TLS packet was received.
Error:  Could not connect to server

Using Core FTP LE:

SL/TLS error - 0, SSL error - 1, error:0001:lib(0):func(0):reason(1)
SSL Connection not established

Using WinSCP:

TLS connect: error in SSLv2/v3 read server hello A
TLS connect: error in SSLv2/v3 read server hello A
Can't establish TLS connection
Disconnected from server

lftp from a remote Linux:

Fatal error: gnutls_handshake: An unexpected TLS packet was received.

Debugging, I get:

...
GNUTLS: EXT[0x2aa440f42d0]: sent signature algo (2.3) ECDSA-SHA1
GNUTLS: EXT[0x2aa440f42d0]: Sending extension SIGNATURE ALGORITHMS (22 bytes)
GNUTLS: HSK[0x2aa440f42d0]: CLIENT HELLO was queued [268 bytes]
GNUTLS: REC[0x2aa440f42d0]: Preparing Packet Handshake(22) with length: 268 and 
min pad: 0
GNUTLS: ENC[0x2aa440f42d0]: cipher: NULL, MAC: MAC-NULL, Epoch: 0
GNUTLS: REC[0x2aa440f42d0]: Sent Packet[1] Handshake(22) in epoch 0 and length: 
273
GNUTLS: ASSERT: gnutls_buffers.c:1154
GNUTLS: ASSERT: gnutls_buffers.c:588
GNUTLS: ASSERT: gnutls_buffers.c:1154
GNUTLS: ASSERT: gnutls_buffers.c:588
GNUTLS: ASSERT: gnutls_buffers.c:1154
GNUTLS: ASSERT: gnutls_buffers.c:588
GNUTLS: ASSERT: gnutls_buffers.c:1154
GNUTLS: ASSERT: gnutls_buffers.c:588
GNUTLS: ASSERT: gnutls_buffers.c:1154
GNUTLS: REC[0x2aa440f42d0]: SSL 48.48 Unknown Packet packet received. Epoch 0, 
length: 8271
GNUTLS: ASSERT: gnutls_record.c:572
GNUTLS: Received record packet of unknown type 53
GNUTLS: ASSERT: gnutls_record.c:1076
GNUTLS: ASSERT: gnutls_record.c:1158
GNUTLS: ASSERT: gnutls_buffers.c:1409
GNUTLS: ASSERT: gnutls_handshake.c:1446
GNUTLS: ASSERT: gnutls_handshake.c:2757
 gnutls_handshake: An unexpected TLS packet was received.
GNUTLS: REC[0x2aa440f42d0]: Start of epoch cleanup
GNUTLS: REC[0x2aa440f42d0]: End of epoch cleanup
GNUTLS: REC[0x2aa440f42d0]: Epoch #0 freed
GNUTLS: REC[0x2aa440f42d0]: Epoch #1 freed
 Closing control socket

TIA!

Frank M. Ramaekers Jr. | Systems Programmer | Information Technology | American 
Income Life Insurance Company | 254-761-6649 (732-6649)

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Re: [CentOS] move LDAP service to new server

2018-05-31 Thread Ulf Volmer
On Tue, May 29, 2018 at 03:57:43PM +0100, Gary Stainburn wrote:

> Is there any (easy to follow) instructions anywhere to tell me how to back up 
> this service and restore it onto a new one?

This is basically running slapcat on your old server and slapadd on the new one.

openldap config can be either stored as files on disk or inside of the LDAP
and must be handled separatly.

best regards
Ulf

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Re: [CentOS] CentOS 7.5 gui login root only

2018-05-31 Thread m . roth
isdtor wrote:
> Taking first steps on CentOS 7 1804.
>
> Logging into the Gnome/Gnome classic desktop from gdm works only for root.
> For other users, the screen flashes and the login screen returns.
> KDE/Plasma login is successful but ends up with a black screen with mouse
> pointer while all desktop processes appear to be running.
>
> The CentOS 7 system is running in a CentOS6 KVM virtual machine, which may
> be the problem. I have no physical machine for testing right now.
>
> These logins work for non-root users when the system is built from the
> CentOS 7 DVD. The non-working installation stems from a kickstart install
> which essentially includes a much larger number of packages, some 6k vs.
> 2.5k from DVD install). Maybe there are conflicts, but I have not been
> able to isolate anything.
>
Sounds like an authorization issue. Have you checked both
/var/log/messages and /var/log/secure? If you're using /etc/password, are
its permissions and ownership correct? Are the user's home directories
owned by them?

   mark
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Re: [CentOS] Definitive guide to setting up FTPIS on vsftpd

2018-05-31 Thread Kenneth Porter

On 5/31/2018 8:01 AM, Frank M. Ramaekers wrote:

I have a new CentOS 7.4 (recently upgraded to 7.5) system that I have been 
struggling with in configuring vsftpd for FTPS Implicit (port 990).
(The latest instructions I've used are 
at:https://www.unixmen.com/configure-vsftpd-ssltls-centos-7/)


Here's what I'm using. The tutorial site I used is currently down with a 
bandwidth exceeded warning, so I guess it must be quite popular.


I'm using LetsEncrypt certificates. My site domain is replaced with 
example.com. Use your own domain name there as registered with LetsEncrypt.


# see
# http://beginlinux.com/blog/2009/01/secure-ftp-with-ssl-on-centos/

rsa_cert_file=/etc/letsencrypt/live/example.com/fullchain.pem
rsa_private_key_file=/etc/letsencrypt/live/example.com/privkey.pem
ssl_enable=YES
force_local_logins_ssl=NO
force_local_data_ssl=NO
ssl_tlsv1=YES
ssl_sslv2=YES
ssl_sslv3=YES

# limit pasv ports to range that iptables can check
pasv_min_port=6900
pasv_max_port=6969

# added 20120213 to deal with FileZilla 3.5.3 stricter cipher list
# see http://forum.filezilla-project.org/viewtopic.php?f=2&t=23275
ssl_ciphers=HIGH

dual_log_enable=YES

allow_writeable_chroot=YES
user_sub_token=$USER

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Re: [CentOS] CentOS 7.5 gui login root only

2018-05-31 Thread isdtor


> Sounds like an authorization issue. Have you checked both
> /var/log/messages and /var/log/secure? If you're using /etc/password, are
> its permissions and ownership correct? Are the user's home directories
> owned by them?
 
Nothing relevant in these log files.  The test user is in NIS and home 
directory is auto-mounted.  All of this works, user can login through text 
console and ssh.  selinux is disabled.  But even startx isn't working, and 
again the Xorg log doesn't give any indication what might be the problem.

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Re: [CentOS] CentOS 7.5 gui login root only

2018-05-31 Thread m . roth
isdtor wrote:
>
>> Sounds like an authorization issue. Have you checked both
>> /var/log/messages and /var/log/secure? If you're using /etc/password,
>> are
>> its permissions and ownership correct? Are the user's home directories
>> owned by them?
>
> Nothing relevant in these log files.  The test user is in NIS and home
> directory is auto-mounted.  All of this works, user can login through text
> console and ssh.  selinux is disabled.  But even startx isn't working, and
> again the Xorg log doesn't give any indication what might be the problem.
>
Now it begins to sound like a video driver problem. What video do you have?

 mark

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Re: [CentOS] CentOS 7.5 gui login root only

2018-05-31 Thread Prasad K
I have seen similar issues when user shell profiles like .bash_profile or
.bashrc has some errors.
Are users invoking other shells from their default shell ? this usually
breaks X11 start-up scripts.

Regards,
Prasad

On 1 June 2018 at 01:04, isdtor  wrote:

>
> > Sounds like an authorization issue. Have you checked both
> > /var/log/messages and /var/log/secure? If you're using /etc/password, are
> > its permissions and ownership correct? Are the user's home directories
> > owned by them?
>
> Nothing relevant in these log files.  The test user is in NIS and home
> directory is auto-mounted.  All of this works, user can login through text
> console and ssh.  selinux is disabled.  But even startx isn't working, and
> again the Xorg log doesn't give any indication what might be the problem.
>
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