Need Help Diagnosing Server Wierdness

[Michael Havens]

When I drink coffee I get real nervous...... I like the venti chai tea
latai with 4 pumps of chai without the ice and filled with milk.
:-)~MIKE~(-:


On Sun, May 26, 2013 at 3:15 PM, Derek Trotter <expat.arizonan at gmail.com>wrote:

>  Buying your coffee at the grocery store and drinking it at home for a
> week will probably save you enough to buy a new laptop for when you go back
> to Starbucks.
>
>  On 05/26/2013 02:12 PM, Mike Bydalek wrote:
>
> Don't give up your Starbucks! Until you get it fixed (and as a good backup
> access mechanism) check out http://www.teamviewer.com. Every OS is
> supported and you can access your desktop from a web browser remotely.
>
>  -Mike
>
> On Sunday, May 26, 2013, Mark Phillips wrote:
>
>>   Thanks to everyone for their suggestions!
>>
>>  The good news.....the server is healthy, and I solved the problem of the
>> "ssh session ignoring me every few minutes". It seems I made a mistake in
>> the configuration of openVPN in my new ASUS DD-WRT router.
>>
>>  The better news....turning off openVPN on my router also solved my
>> intermittent LAN printing and scanning issues.
>>
>>  The bad news.....need to fix the VPN connection to my LAN. I guess I
>> will be drinking my Starbs at home for awhile! ;)
>>
>>  Happy Memorial Day Weekend to all PLUGers!!
>>
>> Mark
>>
>>
>> On Sun, May 26, 2013 at 1:44 AM, Lisa Kachold <lisakachold at obnosis.com>wrote:
>>
>> Hello Mark,
>>
>>
>>
>>
>>  On Sat, May 25, 2013 at 11:59 AM, Mark Phillips <
>> mark at phillipsmarketing.biz> wrote:
>>
>>  I have an old headless server running Linux version 2.6.32-5-686
>> (Debian 2.6.32-48squeeze1) (dannf at debian.org) (gcc version 4.3.5 (Debian
>> 4.3.5-4) ). Recently, when I log in using ssh the terminal window freezes
>> for a few seconds, then usually comes back. The command line stops printing
>> the characters I am typing, the cursor stops blinking, and then after a few
>> seconds, it comes back. This happens every few minutes, so it is becoming
>> rather annoying.
>>
>>
>>  Here's the general list (some of which you have done already).
>>
>>  0 - Make sure that it's not swapping with "free".
>> 1 - Check that you have no ethernet errors with "ethtool eth0" (or
>> whatever your interfaces are) and look for errors.
>> 1.5 - Check  ' netstat -s -p|grep "segments retransmited" ' for packet
>> loss
>> 2 - Check "netstat -antp" to see what is listening and/or bogging down.
>> 3 - Check "lsof" to see what the system is doing.
>> 4 - Are you accessing SSH via SSH forwarding, a different place/network
>> or VPN?  This could be a MTU issue.
>> 5 - Run "nmap $servername" from your system to check what is available
>> and listening.
>> 6 - Look in your logs for security issues; specifically access attempts
>> to open ports; firewall to only allow source and destination for SSH, DNS
>> or other Mail as appropriate.
>> 7 - Disable your SSH timeout - just to be safe:
>> http://docs.oseems.com/general/application/ssh/disable-timeout
>>  8 - Use a ping from your system to the server to see if you can see
>> latency.
>> 9 - Use a traceroute/tracert to see latency between any hop.
>>
>>
>>  Use the Source my friend!
>>
>>
>>  When I check the disks, I get
>> # df -h
>> Filesystem            Size  Used Avail Use% Mounted on
>> /dev/sda1             182G   42G  131G  25% /
>> tmpfs                 505M     0  505M   0% /lib/init/rw
>> udev                  500M  140K  500M   1% /dev
>> tmpfs                 505M     0  505M   0% /dev/shm
>> /dev/sdb1             230G  146G   72G  67% /mnt/sdb
>>
>>  So I am not running out of disk space.
>>
>>  When I run top, I get this output:
>> Tasks:  90 total,   3 running,  87 sleeping,   0 stopped,   0 zombie
>> Cpu(s):  7.0%us,  3.0%sy,  0.0%ni, 82.7%id,  6.6%wa,  0.3%hi,  0.3%si,
>> 0.0%st
>> Mem:   1032748k total,  1013748k used,    19000k free,   242992k buffers
>> Swap:  2017272k total,     1040k used,  2016232k free,   473584k cached
>>
>>  So I am not running a process that is taking over the CPU.
>>
>>  How should I go about diagnosing this problem?
>>
>>  Thanks!
>>
>>  Mark
>>
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>>
>>
>>  --
>>
>>  (503) 754-4452 Android
>>
>>
>
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