pdeva's questions

I have an openssl public key file. I converted it to PEM format for azure.

However, when i try to create an azure vm with it, it gives me this msg:

The certificate is in an invalid format. X.509 standard format in a .cer or .pem file is supported.

What am i doing wrong?

Update:
This is how the top line of my .pem file looks like:

-----BEGIN RSA PUBLIC KEY-----

I want a cluster of servers to have the exact same time. All are using UTC time zone.

Using NTP currently, i still see they seem to be off by 10-20 miliseconds each.

Whats the best way to have them each the exact time?

I have a certificate bundle .crt file.

doing openssl x509 -in bundle.crt -text -noout only shows the root certificate.

how do i see all the other certificates?

currently i am using putty like this from the command line:

putty.exe -ssh [email protected] -pw mypassword

how do i enable KeepAlive so that the connection doesnt die if i leave the terminal window for a few minutes?

I just bought a SSL certificate, and here are all the certificate files i got:

Root CA Certificate - xxCARoot.crt
Intermediate CA Certificate - x1.crt
Intermediate CA Certificate - x2.crt
Intermediate CA Certificate - x3.crt
Your EssentialSSL Wildcard Certificate - mydomain.crt

Now to install my certificates on apache:

1. Do I need to expose the Root CA Certificate at all?
2. Since apache only allows 1 SSLCertificateChainFile directive, am I supposed to create a bundle file of the intermediate CA's?

3. If so. will the order of certificates in the bundle file be reversed like this:

   cat x3.crt x2.crt x1.crt > myca.bunndle

4. If the root certificate does have to be added, does it come in last (after z1) or first (before x3) in the bundle (assuming the order is correct in the first place)?

I just installed a brand new centos 5.8 64bit on virtualbox 4.1.10 with guest additions installed

I gave it a dynamically allocated 8gb hard drive. It is currently using only 3.9gb of that. However, it seems to think that 3.9 gb is all that is has got and free space is shown as 0.

This means i am unable to install any updates or any other applications.

How do i make linux see the full 8gb?

[pdeva@localhost ~]$ df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
                  3.9G  3.6G   62M  99% /
/dev/sda1              99M   13M   81M  14% /boot
tmpfs                 4.2G     0  4.2G   0% /dev/shm
unpack                239G  228G   11G  96% /media/sf_unpack
/dev/hdc               49M   49M     0 100% /media/VBOXADDITIONS_4.1.10_76836

    [root@localhost pdeva]# /usr/sbin/pvdisplay 
  --- Physical volume ---
  PV Name               /dev/sda2
  VG Name               VolGroup00
  PV Size               7.90 GB / not usable 23.41 MB
  Allocatable           yes (but full)
  PE Size (KByte)       32768
  Total PE              252
  Free PE               0
  Allocated PE          252
  PV UUID               8frMVE-VDj5-Nuhm-PkJ7-9aPT-BvSa-v8WlpP

[root@localhost pdeva]# /usr/sbin/vgdisplay 
  --- Volume group ---
  VG Name               VolGroup00
  System ID             
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  3
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                2
  Open LV               2
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               7.88 GB
  PE Size               32.00 MB
  Total PE              252
  Alloc PE / Size       252 / 7.88 GB
  Free  PE / Size       0 / 0   
  VG UUID               MPuRl0-ikuh-fxoM-P62x-WBBA-jqCB-94s9V9

[root@localhost pdeva]# /usr/sbin/lvdisplay 
  --- Logical volume ---
  LV Name                /dev/VolGroup00/LogVol00
  VG Name                VolGroup00
  LV UUID                dzHm7O-Wj0K-7I30-P6Bs-lpqh-9F9y-bOs2em
  LV Write Access        read/write
  LV Status              available
  # open                 1
  LV Size                3.97 GB
  Current LE             127
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:0

  --- Logical volume ---
  LV Name                /dev/VolGroup00/LogVol01
  VG Name                VolGroup00
  LV UUID                2iLTuY-yw9h-eQMD-LaVs-8ro1-QGBk-J7xk5P
  LV Write Access        read/write
  LV Status              available
  # open                 1
  LV Size                3.91 GB
  Current LE             125
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:1

I have a newbie security related question.

Should port 25 (smtp) be blocked by firewall on my server? Or will doing so mean that i cannot send any mail at all?

Maxwell: I basically have my own mail server. It is used by the website, on the same server, to send mails. I also need to be able to send/receive mails using a pop client. In that case which of your options should i adapt?