Softaculous <![CDATA[general network down for VM]]>
I meet a second time a problem with a new slave Xen server installed for 3 weeks.

General network for VM is down suddenly.
The second time happened last night at about the same time a customer has reinstalled his vps.

In /var/log/messages, i can observe this for all VM interfaces :
Feb  8 02:00:56 s1 dhcpd: No subnet declaration for vifv1054.0-emu (no IPv4 addresses).
Feb  8 02:00:56 s1 dhcpd: ** Ignoring requests on vifv1054.0-emu.  If this is not what
Feb  8 02:00:56 s1 dhcpd:    you want, please write a subnet declaration
Feb  8 02:00:56 s1 dhcpd:    in your dhcpd.conf file for the network segment
Feb  8 02:00:56 s1 dhcpd:    to which interface vifv1054.0-emu is attached. **

dhcpd.conf looks good.

IP, mask, gateway are alright configured in the VM at this moment.

One hour later, DHCP informs VM about network infos :
Feb  8 02:01:56 s1 dhcpd: DHCPDISCOVER from 02:00:00:0e:db:64 via viifbr0
Feb  8 02:01:56 s1 dhcpd: DHCPOFFER on 164.0.01 to 02:00:00:0e:db:64 via viifbr0

I have restarted a lot of services but nothing :
ifdown eth0 && ifup eth0
service network restart
service dhcpd restart
service ebtables restart
service iptables restart
service libvirtd restart
service libvirt-guests restart
service virtnetwork restart
service zzvirtservice restart

The only way to get network up for all VM is to reboot this server.

So, why i get this probleme and how can i fix it please ?

CentOS release 6.7 (Final)
[root@s1 ~]# uname -a
Linux s1 4.1.15-4.el6xen.x86_64 #1 SMP Tue Dec 29 20:16:34 AEDT 2015 x86_64 x86_64 x86_64 GNU/Linux

Thank you
Mon, 08 Feb 2016 10:21:39 GMT
<![CDATA[Let each email address change their password]]>
POPPASSD are already implemented and part of some Cpanle like Plesk, Cpanel too so implement also for webuzo so... email user can change your password with a plug in on Web Mail Lite.
Mon, 08 Feb 2016 08:07:23 GMT
<![CDATA[Network issue with KVM host]]>
Sir, You just need to add the IP pool in Virtualizor and then add IPs to that pool.

Then you can assign the IPs to your VM from the panel itself.

If your IPs are routed on your main node then please check the "routed" checkbox while adding the IP pool.

Mon, 08 Feb 2016 06:03:36 GMT
<![CDATA[Network issue with KVM host]]>
you add them via your master via create IP pools
Sun, 07 Feb 2016 15:22:59 GMT
<![CDATA[Making AMPPS accessible around the office [OSX]]]>
Right now I am running a installation of AMPPS for Wordpress development, but as soon as I want my colleagues to also thinker around in the development process I have to sync my work to a live staging server to work together. It would be nice that my `` would be accessible within the network when my AMPPS is running.

Some time ago I did some Google searches and got it to work for about half way because of changing the IP address from my local to my computer IPs address, but seeing the redesigned interface of AMPPS with the new versions I thought maybe it has been made easier now.

Any tips or links to the right resources would be appreciated!]]>
Sun, 07 Feb 2016 11:30:17 GMT
<![CDATA[Security Issue EXIM 4.72]]> The most problem is as there are a security issue I AM allerted every week from the security scanner I placed for monitor safety of the server.

Now you told seems you have issue on install the new Exim. This is not the first time I heard that, I have hearded that same for the Antispam... so really hope you will not do the same as Antispam who is two years has not been relased. I need fix the security issue with Exim but as is integrated in Webuzo I can't fix by myself. I have tried all but all is not working so must wait you.]]>
Sun, 07 Feb 2016 07:13:34 GMT
<![CDATA[Moodle Past 2.6]]> Sun, 07 Feb 2016 00:24:33 GMT <![CDATA[Security Issue EXIM 4.72]]>

SO hope very soon will be relased an updated version of Exim, please... not as the antispam who is not avaiable in two years.

This is a very security issue old Exim.
Sat, 06 Feb 2016 22:08:58 GMT
<![CDATA[Security Issue EXIM 4.72]]>
tls_require_ciphers = +TLSv1.2

not work as TLS stop to work because TLS without SSL 3 is not supported on Exim 4.72 with the actual Webuzo configuration and GNU... so...

just an Webuzo update will able to solve the Security Issue
Sat, 06 Feb 2016 20:48:46 GMT
<![CDATA[STRONG SECURITY ISSUE on Exim 4.72 (last supported by Webuzo)]]>
Seems to be compiled with GnuTLS.

From my test if I try to disable SSL 3 into Exim by following official instruction here:

with line tls_require_ciphers = NORMAL:!VERS-SSL3.0

than save and restart exim I can see no more security cipher are supported.
You can see with that command:

openssl s_client -connect mailserver.ext:465

if you add on tls_require_ciphers +TLSv1.1:+TLSv1.2:ALL no support
cipher will be supported so you must remove completely
tls_require_ciphers and you cannot disable SSL 3 so your server will
continue to be VULNERABLE.

Also if you disable SSL 3 Thunderbird stop to work because the connection is not secure.

So Webuzo team you have really to solve a BIG issue with email and security.
Sat, 06 Feb 2016 17:34:42 GMT