Friday, October 19, 2012
centos kvm console
To enable console access from the host command line to a CentOS guest, this was an useful link
Thursday, October 18, 2012
Centos 6: bridge vlan and bond
/etc/sysconfig/network-scripts/ifcfg-em1
DEVICE=em1
BOOTPROTO=none
HWADDR=78:2b:cb:xx:xx:xx
ONBOOT=yes
MASTER=bond0
SLAVE=yes
TYPE=Ethernet
IPV6INIT=no
USERCTL=no
/etc/sysconfig/network-scripts/ifcfg-em2
DEVICE=em2
BOOTPROTO=none
HWADDR=78:2b:cb:yy:yy:yy
ONBOOT=yes
MASTER=bond0
SLAVE=yes
TYPE=Ethernet
IPV6INIT=no
USERCTL=no
/etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE=bond0
ONBOOT=yes
BOOTPROTO=none
BONDING_OPTS="mode=4 miimon=100 lacp_rate=1"
TYPE=Ethernet
IPV6INIT=no
USERCTL=no
NOZEROCONF=yes
/etc/init.d/network restart
vconfig add bond0 11
brctl addbr brvlan11
brctl addif brvlan11 bond0.11
/etc/sysconfig/network-scripts/ifcfg-bond0.11
DEVICE=bond0.11
ONBOOT=yes
BRIDGE=brvlan11
VLAN=yes
/etc/sysconfig/network-scripts/ifcfg-brvlan11
DEVICE=brvlan11
ONBOOT=yes
TYPE=Bridge
BOOTPROTO=static
IPADDR=10.96.11.40
NETMASK=255.255.255.0
GATEWAY=10.96.11.1
VLAN=yes
STP=on
DELAY=0
On the HP switch
configure
trunk 3-4 Trk4 LACP
vlan 11
tagged Trk4
end
Friday, October 12, 2012
windows internet explorer and https problem
In Internet Explorer you see "Certificate Error: Navigation Blocked":
as usual, when visiting sites with self signed certificates or unknown
CA.
When pressing the continue to site not recommended blabla button, nothing changes, it just stays on the same page.
So, there is a windows upgrade, KB2661254 (Microsoft Security Advisory: Update for minimum certificate key length) released on 9 October (I think), that prevent access to some https web sites using Internet Explorer.
And Internet Explorer don't say anything. Simply, if you click on Proceed anyway, nothing happens.
So, you must upgrade your web servers to 1024 or 2048 bit keys, or uninstall such windows upgrade, or make changes in the windows registry to lower the minimum certificate key length (search the KB article on the Microsoft site).
Some info http://ssl.entrust.net/blog/?p=1208
When pressing the continue to site not recommended blabla button, nothing changes, it just stays on the same page.
So, there is a windows upgrade, KB2661254 (Microsoft Security Advisory: Update for minimum certificate key length) released on 9 October (I think), that prevent access to some https web sites using Internet Explorer.
And Internet Explorer don't say anything. Simply, if you click on Proceed anyway, nothing happens.
So, you must upgrade your web servers to 1024 or 2048 bit keys, or uninstall such windows upgrade, or make changes in the windows registry to lower the minimum certificate key length (search the KB article on the Microsoft site).
Some info http://ssl.entrust.net/blog/?p=1208
Wednesday, October 10, 2012
mysql Can't create/write to file /var/tmp/
Solaris 10 x86
mysqldump: Couldn't execute 'show fields from `general_log`': Can't create/write to file '/var/tmp/#sql3a3_43024_4.MYI' (Errcode: 13) (1)
Why?! WTF!
The last operation I made was the installation of MegaRAID Storage Manager from LSI Corporation package.
So? The /var/tmp directory was no more 777
Strange
mysqldump: Couldn't execute 'show fields from `general_log`': Can't create/write to file '/var/tmp/#sql3a3_43024_4.MYI' (Errcode: 13) (1)
Why?! WTF!
The last operation I made was the installation of MegaRAID Storage Manager from LSI Corporation package.
So? The /var/tmp directory was no more 777
Strange
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