Hi I have a munin plugin that does this

load_fetch()  {
set -- $(cat /proc/loadavg)
cat <<EOF                                                                                                                                                                           
load1.value $1                                                                                                                                                                      
load5.value $2                                                                                                                                                                      
load15.value $3                                                                                                                                                                     
EOF                                                                                                                                                                                 
}

I was woundering if any one could tell me what the "set --" is doing? its not an east thing to google for and get results.

I have booted up an instance in side a private VPC. I assigned an ElasticIp address to it and I can ssh into the instance with no issues. However, DNS is not resolving :(

in my /etc/resolv.conf I have

nameserver  172.16.0.23
domain eu-west-1.compute.internal
search eu-west-1.compute.internal

but when I try and ping 172.16.0.23 I get

icmp_seq=156 Destination Net Unreachable

Which makes sense as I have no route to that private subnet. I can ping any external ip address i.e

ping 173.194.69.139

but I cannot

ping google.com

I created the VPC using the wizard I assume that the VPC is assigning the /etc/resolv.conf settings.

and the documentation says I should have external dns access, but I don't.

Can anyone help?

PLEASE NOTE: port 22 is just an example port there will be instances when it is not port 22 I am trying to deal with.

Security Groups

"server-1" has a security group "group-1"
"server-2" has a security group "group-2"
"server-1" has an elastic ip address assigned to it i.e 111.222.333.444

and

"group-2" is allowed to connect to "group-1" via port 22

So if I ssh from server-2 to server-1 via the following command

ssh -iKEY.pem [email protected]

the connection is fine, works as expected.

If however I try and connect via this command.

ssh -iKEY.pem [email protected]

It does not work for what I assume are obvious reasons

I have left the aws network in order to connect to the server-1 and therefore aws sees the connection from server-2 as an external resource and no longer an aws instance. This means it will not use the Security group that says:

"group-2" is allowed to connect to "group-1" via port 22

Actual Problem

I want to connect to server-1 via the ElasticIP address so I can happily reboot server-1 and/or server-2 and not have to worry that the aws instance name/ip address has changed i.e the domain name in the first ssh example will change on a reboot/new instance taking over.

So my question really is what is the best practice way to do this. The options I can see at the moment are:

1. Do a reverse dns look up of the ElasticIP address and connect using this domain name form server-2 to server-1 i.e the Elastic ip address is 111.222.333.444 and the reverse look up will return me

   ec2-111-222-333-444.eu-west-1.compute.amazonaws.com

   I cannot relay on building this manually as I also need to know what availability zone the instance is in in order to do that (I would like very much not to care about where it is).

2. I would assume there is a aws api call I can do to grab the current instance name that is attached to the ElasticIP address. Iam not overly kean on the application knowing it is on an aws server and would like to keep away form the api.

3. Use vpc instances within aws. This way I can always attach the same private ip address to server-1 and connect to it reliably even after a reboot of either server. This however appears to come with a lot of configuration and maintenance.

4. I could manually update any config settings pointing to the server-1 after a reboot (this is not a series suggestion).

5. Open server-1 port 22 to the world (NOTE: I want to open other ports as well not just 22) and worry about the application doing the authentication. (again not really a sensible option as if I want to open port 80 to server-2 then have to use .htaccess or alike to authenticate the connection, therefore just moving this issue and not really solving it).

The problem I have with options 1 and 2 are that I have to always do these lookups which produces massive over head on an application or I cache it and have to live with the fact that if the instance of server-1 changes i.e a reboot occurs then there is a time when server-2 will will not be able to connect to server-1 till it de-caches the instance name.

Option 3 is probably the best solution however it comes with configuration and maintenance that is time consuming and needs extra knowledge within our company.

Does anyone have an other suggestion that will work?

Does anyone know what these mean

x-aol-global-disposition: G
X-AOL-SCOLL-SCORE: 1:2:404915168:93952408  

I see them in the headers of email received by aol.com they obviously put them there but I cannot find any information about what they mean.

any help much appreciated

I have set up an automatic logout for idle ssh session using "ClientAliveInterval 7200"

However I do not get logged out everyone else who uses the server gets logged fine.

I have tracked the trouble maker down to this line in my personal .screenrc

caption always "%{WB}%H %{kG}%?%-Lw%?%{bw}%n*%f %t%?(%u)%?%{kG}%?%+Lw%? %88=%{YR}%M%d %94=%{RY}%c%="

Does anyone know why this would stop the logout from working?

Is there a better automatic logout setting I can use that cannot be overridden?

I am using FreeBSD 8.0

Hi I am trying to figure out how to use the xfermailbox command correctly in cyrus

I created a temp mail box called [email protected] and I want to move it to [email protected]

so I used the following command

xfermailbox user.test smtp.domain2.com

The only errors I got when running this where

Jul  7 11:32:10 domain imap[4344]: IOERROR: open on /var/spool/imap/domain/domain1.com/user/test/cyrus.expunge: No such file or directory
Jul  7 11:32:10 domain imap[4344]: IOERROR: open on /var/imap/domain/r/domain1.com/user/t/test.sub: No such file or directory
Jul  7 11:32:10 domain imap[4344]: IOERROR: open on /var/imap/domain/r/domain1.com/user/t/test.mboxkey: No such file or directory
Jul  7 11:32:10 domain imap[4344]: could not dump sieve scripts in /var/imap/sieve/domain/r/domain1.com/t/test: No such file or directory)
Jul  7 11:32:10 domain imap[4766]: skiplist: recovered /var/imap/user/t/test.seen.4766 (1 record, 380 bytes) in 0 seconds
Jul  7 11:32:10 domain imap[4344]: Could not set remote acl on domain1.com!user.test
Jul  7 11:32:10 domain imap[4766]: Deleted mailbox user.test

The only one that looks worrying to me is

Jul  7 11:32:10 domain imap[4344]: Could not set remote acl on domain1.com!user.test

but still not sure if it is actually a problem and weather cyrus just sets some defaults on domain2.com

Now that I have run this command I get this message when I try and access the [email protected] mailbox. I get it if I try to access the mailbox from a mail client or if I try do something like "lam user.test" from within cyradm

[REFERRAL imap://;AUTH=*@smtp.domain2.com/user.test] Remote mailbox.

This still is not the real problem this I guess is just telling me the mailbox no longer exists here. The real problem is that the mailbox does not appear at domain2.com.

so 2 questions

1) Have I used the xfermailbox command in the wrong way? or could this be a bug?
2) How can I now delete the mailbox from domain1.com so I can recreate it and start again? ("dm user.test" produces the same referral message as above)

UPDATE:

I managed to "fix" the [email protected] mail box I had to dump the mailbox.db and edit the offending line and then insert the new mailbox list with the following commands

su - cyrus -c "/usr/local/cyrus/bin/ctl_mboxlist -d" > ~/mailbox
su - cyrus -c "/usr/local/cyrus/bin/ctl_mboxlist -u" 

I still have the problem that I cannot xfer the mailbox every time I try I get the following errors

from cyradm

localhost> xfer user.test smtp.domain2.com
xfermailbox: The remote Server(s) denied the operation
localhost> xfer user.test smtp.domain2.com
xfermailbox: [REFERRAL imap://;AUTH=*@smtp.domain2.com/user.test] Remote mailbox.
localhost> 


and from /var/log/messages


Jul  8 12:25:08 domain imap[19557]: login: smtp.domain2.com [???.???.???.???] cyrus DIGEST-MD5 User logged in
Jul  8 12:25:08 domain imap[18848]: IOERROR: open on /var/spool/imap/domain/domain1.com/user/test/cyrus.expunge: No such file or directory
Jul  8 12:25:08 domain imap[18848]: IOERROR: open on /var/imap/domain/r/domain1.com/user/t/test.sub: No such file or directory
Jul  8 12:25:08 domain imap[18848]: IOERROR: open on /var/imap/domain/r/domain1.com/user/t/test.mboxkey: No such file or directory
Jul  8 12:25:08 domain imap[18848]: could not dump sieve scripts in /var/imap/sieve/domain/r/realtsp.com/t/test: No such file or directory)
Jul  8 12:25:09 domain imap[18848]: Could not set remote acl on realtsp.com!user.test
Jul  8 12:25:09 domain imap[19557]: Deleted mailbox user.test

any and all help welcome

I am in the process of configuring MySQL replication and am intending to use row-based-replication but I was also reading up about mixed-based replication.

This is where statement-based is the default and then for certain circumstances (http://dev.mysql.com/doc/refman/5.1/en/binary-log-mixed.html) MySQL will switch to row-based.

The list is quit vast on when it will switch to row-based.

My questions are:

Does any one use mixed? If yes why did you chose this over just using one or the other?

Thanks in advance

I have php 5.2.12 installed on FreeBSD 8.0-STABLE. It was installed from ports and I am trying to upgrade it to 5.3.2.

However for some reason my system is not recognising that php was installed via ports. When I run "pkg_version" the list does not include php it does however include all the extensions that I have installed.

I have even tried to do "make deinstall" on "/usr/ports/lang/php5" it told me that the port had been deinstalled but php still appears to be working correctly i.e "php -v" works

any ideas on how this port has become de attached from the ports system? and how I can get the ports system to recognise that it installed php?

EDIT: When I run "make deinstall" over and over again I always get the same answer

Deinstalling for lang/php5

I never get

php52 not installed, skipping

which is what I am expecting after the first time I run "make deinstall"

Hi I've been looking for answers for this all day and can find nothing to solve my issue.

I also came across a question about this port on serverfault that I just answered and will hopefully help someone else.

however my problem is this.

While running "make" in /usr/ports/security/pecl-ssh2

I get this error

===>  Building for pecl-ssh2-0.11
/bin/sh /usr/ports/security/pecl-ssh2/work/ssh2-0.11/libtool --mode=compile cc  -I. -I/usr/ports/security/pecl-ssh2/work/ssh2-0.11 -DPHP_ATOM_INC -I/usr/ports/security/pecl-ssh2/work/ssh2-0.11/include -I/usr/ports/security/pecl-ssh2/work/ssh2-0.11/main -I/usr/ports/security/pecl-ssh2/work/ssh2-0.11 -I/usr/local/include/php -I/usr/local/include/php/main -I/usr/local/include/php/TSRM -I/usr/local/include/php/Zend -I/usr/local/include/php/ext -I/usr/local/include/php/ext/date/lib -I/usr/local/include  -I/usr/local/include -DHAVE_CONFIG_H  -O2 -pipe -fno-strict-aliasing   -c /usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c -o ssh2.lo
 cc -I. -I/usr/ports/security/pecl-ssh2/work/ssh2-0.11 -DPHP_ATOM_INC -I/usr/ports/security/pecl-ssh2/work/ssh2-0.11/include -I/usr/ports/security/pecl-ssh2/work/ssh2-0.11/main -I/usr/ports/security/pecl-ssh2/work/ssh2-0.11 -I/usr/local/include/php -I/usr/local/include/php/main -I/usr/local/include/php/TSRM -I/usr/local/include/php/Zend -I/usr/local/include/php/ext -I/usr/local/include/php/ext/date/lib -I/usr/local/include -I/usr/local/include -DHAVE_CONFIG_H -O2 -pipe -fno-strict-aliasing -c /usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c  -fPIC -DPIC -o .libs/ssh2.o
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c: In function 'zif_ssh2_methods_negotiated':
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:502: warning: passing argument 4 of 'add_assoc_string_ex' discards qualifiers from pointer target type
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:503: warning: passing argument 4 of 'add_assoc_string_ex' discards qualifiers from pointer target type
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:507: warning: passing argument 4 of 'add_assoc_string_ex' discards qualifiers from pointer target type
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:508: warning: passing argument 4 of 'add_assoc_string_ex' discards qualifiers from pointer target type
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:509: warning: passing argument 4 of 'add_assoc_string_ex' discards qualifiers from pointer target type
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:510: warning: passing argument 4 of 'add_assoc_string_ex' discards qualifiers from pointer target type
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:515: warning: passing argument 4 of 'add_assoc_string_ex' discards qualifiers from pointer target type
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:516: warning: passing argument 4 of 'add_assoc_string_ex' discards qualifiers from pointer target type
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:517: warning: passing argument 4 of 'add_assoc_string_ex' discards qualifiers from pointer target type
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:518: warning: passing argument 4 of 'add_assoc_string_ex' discards qualifiers from pointer target type
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c: In function 'zif_ssh2_poll':
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:891: error: 'zval' has no member named 'is_ref'
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:891: error: 'zval' has no member named 'refcount'
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:901: error: 'zval' has no member named 'is_ref'
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:902: error: 'zval' has no member named 'refcount'
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c: In function 'zif_ssh2_publickey_add':
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:1011: error: 'zval' has no member named 'is_ref'
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:1012: error: 'zval' has no member named 'refcount'
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:1044: warning: passing argument 1 of '_efree' discards qualifiers from pointer target type
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c: In function 'zif_ssh2_publickey_list':
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:1103: warning: passing argument 4 of 'add_assoc_stringl_ex' discards qualifiers from pointer target type
/usr/ports/security/pecl-ssh2/work/ssh2-0.11/ssh2.c:1104: warning: passing argument 4 of 'add_assoc_stringl_ex' discards qualifiers from pointer target type
*** Error code 1

Stop in /usr/ports/security/pecl-ssh2/work/ssh2-0.11.
*** Error code 1

Stop in /usr/ports/security/pecl-ssh2.

I am trying to recompile this port after upgrading from php 5.2.12 to php 5.3.2 which was released on freebsd over the weekend.

I have run out of ideas and steam with this so if anyone has any ideas on what this might be I would be truly grateful.

Hi this is quite and embarrassing question as I should really now how to do this.

I have php5 installed on ubuntu Jaunty server it looks to me like some of the modules come pre-compiled in the php package things like gettext, hash, etc any packages i have installed such as PDO and pdo_mysql i have no trouble removing but I wish to remove gettext from the server and for the life of me cannot find how.

On FreeBSD there is an extension.ini file that i can just comment out extensions and there gone and if there isn't an extensions file i should be able to comment them out of php.ini but neither of these options appear to be of any help to me on ubuntu.

Any help would be appreciated.

Hi I have an issue with bounced mail it does not happen all the time but at the same time is very frequent. Most of the time if I send an email to an address that does not exist then i get a bounce back into failues@domain however there seem to be instances when I get this error below

Sep 30 13:38:53 postfix/smtp[62566]: DB8E6D6F9EA: to=, relay=none, delay=0, delays=0/0/0/0, dsn=5.4.6, status=bounced (mail for domain loops back to myself)

I seem to get this when I get an immediate bounce i.e the server im trying to connect to immediately blocks the email because it nows that the address does not exist. If the email goes out and is returned later this seems to work fine.

Does anyone have any ideas why I would get this "mail for domain loops back to myself" error message.

Obviously it is me trying to send the email back to myself as my server received a block when trying to send a mail then it tries to send the mail back to the ReplyTo header which in this case is itself but shouldn't it be able to handle this?

........

NOTE: ive had to remove any '.com' from this post as I can only post 1 url

Thanks for the 2 answers already however we are still having the same issue. so below I'm trying to provide some more detailed information.

Both the examples below try to send to a non-existent address. RealTSP bounce from another postfix instance works. Yahoo's bounce doesn't work. We are expecting a "non-delivery notification" to be delivered to , because the Return-Path in both cases is an equivalent VERP address. Note if we don't use VERP, ie "Return-Path: " then yahoo works also.

Log entries

realtsp.....working!
====================
Oct  6 16:46:08 milford postfix/smtpd[58480]: 5027DD6E971: client=takapuna.realtsp[89.187.108.20], sasl_method=LOGIN, sasl_username=*****
Oct  6 16:46:08 milford postfix/cleanup[58482]: 5027DD6E971: message-id=
Oct  6 16:46:08 milford postfix/qmgr[57929]: 5027DD6E971: from=, size=9468, nrcpt=1 (queue active)
Oct  6 16:46:08 milford postfix/smtp[57936]: 5027DD6E971: to=, relay=milford.realtsp[89.187.108.21]:25, delay=0.64, delays=0.63/0/0/0.01, dsn=5.1.1, status\
=bounced (host milford.realtsp[89.187.108.21] said: 550 5.1.1 : Recipient address rejected: User unknown in virtual mailbox table (in reply to RCPT TO comm\
and))
Oct  6 16:46:08 milford postfix/bounce[58483]: 5027DD6E971: sender non-delivery notification: EA68FD6EAB7
Oct  6 16:46:08 milford postfix/qmgr[57929]: 5027DD6E971: removed


Oct  6 16:46:08 milford postfix/cleanup[58482]: EA68FD6EAB7: message-id=
Oct  6 16:46:08 milford postfix/qmgr[57929]: EA68FD6EAB7: from=, size=11600, nrcpt=1 (queue active)
Oct  6 16:46:09 milford postfix/lmtp[58484]: EA68FD6EAB7: to=, relay=smtp.news.t1ps[/var/imap/socket/lmtp], delay=0.76, delays=0/0.0\
1/0/0.75, dsn=2.1.5, status=sent (250 2.1.5 Ok)
Oct  6 16:46:09 milford postfix/qmgr[57929]: EA68FD6EAB7: removed


yahoo...not working!
========================
Oct  6 16:42:01 milford postfix/smtpd[57732]: 33EBBD6EE87: client=takapuna.realtsp[89.187.108.20], sasl_method=LOGIN, sasl_username=****
Oct  6 16:42:01 milford postfix/cleanup[57735]: 33EBBD6EE87: message-id=
Oct  6 16:42:01 milford postfix/qmgr[57598]: 33EBBD6EE87: from=, size=9480, nrcpt=1 (queue active)
Oct  6 16:42:10 milford postfix/smtp[57636]: 33EBBD6EE87: to=, relay=e.mx.mail.yahoo[206.190.53.191]:25, delay=9.4, delays=0.02/0/6.5/2.9, dsn=5.0.0, s\
tatus=bounced (host e.mx.mail.yahoo[206.190.53.191] said: 554 delivery error: dd This user doesn't have a yahoo account (nkaderibigbe@yahoo) [0] - mta164.mail.re2.yaho\
o (in reply to end of DATA command))
Oct  6 16:42:10 milford postfix/bounce[57756]: 33EBBD6EE87: sender non-delivery notification: A083ED6EA01
Oct  6 16:42:10 milford postfix/qmgr[57598]: 33EBBD6EE87: removed


Oct  6 16:42:10 milford postfix/cleanup[57735]: A083ED6EA01: message-id=
Oct  6 16:42:10 milford postfix/qmgr[57598]: A083ED6EA01: from=, size=11696, nrcpt=1 (queue active)
Oct  6 16:42:10 milford postfix/smtp[57631]: A083ED6EA01: to=, relay=none, delay=0.01, delays=0.01/0/0/0, dsn=5.4.6, status=bounced \
(mail for news.t1ps loops back to myself)
Oct  6 16:42:10 milford postfix/qmgr[57598]: A083ED6EA01: removed

main.cf

soft_bounce = no
queue_directory = /var/spool/postfix_rsh
command_directory = /usr/local/sbin
daemon_directory = /usr/local/libexec/postfix
data_directory = /var/db/postfix_rsh
mail_owner = postfix
myhostname = smtp.news.t1ps
inet_interfaces = 89.187.108.81
local_recipient_maps = $virtual_mailbox_maps
unknown_local_recipient_reject_code = 550
mynetworks_style = host
relay_domains = $mydestination
recipient_delimiter = +

mailbox_transport  = lmtp:unix:/var/imap/socket/lmtp

header_checks = regexp:/usr/local/etc/postfix_rsh/header_checks
debug_peer_level = 10
debug_peer_list = yahoo
debugger_command =
         PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
         ddd $daemon_directory/$process_name $process_id & sleep 5
sendmail_path = /usr/local/sbin/sendmail
newaliases_path = /usr/local/bin/newaliases
mailq_path = /usr/local/bin/mailq
setgid_group = maildrop
html_directory = no
manpage_directory = /usr/local/man
sample_directory = /usr/local/etc/postfix_rsh
readme_directory = no
masquerade_domains      = $mydomain
message_size_limit      = 51200000
virtual_transport       = lmtp:unix:/var/imap/socket/lmtp
virtual_mailbox_domains = news.t1ps, domain2, domain3.co.uk, domain4
virtual_alias_maps   = hash:/usr/local/etc/postfix_rsh/virtual
virtual_mailbox_maps = hash:/usr/local/etc/postfix_rsh/virtual_mailbox_maps
transport_maps       = regexp:/usr/local/etc/postfix_rsh/transport
broken_sasl_auth_clients = no
smtp_bind_address               = 89.187.108.81
smtpd_sasl_auth_enable          = yes
smtpd_sender_restrictions       = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination
smtpd_recipient_restrictions    = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination
smtpd_helo_restrictions         = reject_invalid_hostname
smtpd_require_helo              = yes
slow_destination_concurrency_limit = 15
slow_destination_recipient_limit = 5
syslog_facility = local1

/usr/local/etc/postfix_rsh/virtual_mailbox_maps

[email protected] dummy

master.cf

pickup    fifo  n       -       n       60      1       pickup
cleanup   unix  n       -       n       -       0       cleanup
qmgr      fifo  n       -       n       300     1       qmgr
tlsmgr    unix  -       -       n       1000?   1       tlsmgr
rewrite   unix  -       -       n       -       -       trivial-rewrite
bounce    unix  -       -       n       -       0       bounce
defer     unix  -       -       n       -       0       bounce
trace     unix  -       -       n       -       0       bounce
verify    unix  -       -       n       -       1       verify
flush     unix  n       -       n       1000?   0       flush
proxymap  unix  -       -       n       -       -       proxymap
smtp      unix  -       -       n       -       500     smtp

slow      unix  -       -       n       -       100     smtp
          -o smtp_connect_timeout=5

relay     unix  -       -       n       -       100     smtp
        -o fallback_relay=
showq     unix  n       -       n       -       -       showq
error     unix  -       -       n       -       -       error
retry     unix  -       -       n       -       -       error
discard   unix  -       -       n       -       -       discard
local     unix  -       n       n       -       -       local
virtual   unix  -       n       n       -       -       virtual
lmtp      unix  -       -       n       -       -       lmtp
anvil     unix  -       -       n       -       1       anvil
scache    unix  -       -       n       -       1       scache

26        inet  n       -       n       -       -       smtpd
         -o content_filter=

smtp      inet  n       -       n       -       -       smtpd
         -o content_filter=spamchk:dummy


spamchk   unix  -       n       n       -       10      pipe
         flags=Rq user=spamd argv=/usr/local/bin/spamchk_rsh -f ${sender} --
         ${recipient}
proxywrite unix -       -       n       -       1       proxymap