spam blocking - Page 88

Best all in one linux based proxy,firewall, dhcp and wins server.

- by BeStRaFe

I help to run a lan in Sydney. We have a need for a proxy/gateway solution to allow those pesky games that require internet to work. I have been doing this with an ISA server and it has worked quite well. However now i wish to port this over to run on the same hardware as our cacti / nagios box under a vmware VM. ISA server is horridly nad due to the massive ram and i/o requirement for something is basically port blocking and handing out IP's. The needs are as follows. 1. DHCP 2. WINS (otherwise network devices fight over who is the WINS master) 3. Filtering based in PORT for outbound traffic. 4. Ability to whitelist IP/MAC's for internet access. 5. Web Interface. I had been thinking to use PFSENSE however there is no option for a WINS server and i cbf working my way around bsd.

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Why does Exchange 2003 silently reject emails with large attachments?

- by Cypher

Our environment: Exchange Server 2003 Standard, single instance, running on Windows Server 2003 Standard. configured to not send/receive mail with attachments larger than 10 MB. NDRs are not enabled. The issue: When an external sender sends an email with an attachment larger than 10MB, Exchange, as configured, does not receive the message. However, the sender of that message does not receive any notifications from his own mail server that the message could not be delivered due to attachment size. However, if an external user tries to send an email to a non-existent user, they do receive a message from their mail server indicating that the user does not exist. Why is that, and is there anything I can do about it? It would be nice if the sender received notification that the attachment file size exceeds our limits and their message was never received... Update The Exchange server has a SpamAssassin box in front of it... could that have something to do with it? Here is one of the last lines from SpamAssassin's logs when searching for my test e-mails: mail postfix/smtp[19133]: 2B80917758: to=, relay=10.0.0.8[10.0.0.8]:25, delay=4.3, delays=2.6/0/0/1.7, dsn=2.6.0, status=sent (250 2.6.0 Queued mail for delivery) My assumption is that Spam Assassin thinks the message is OK and is forwarding it off to Exchange. Update I've verified that Exchange is receiving the message and generating an NDR. However, delivery of NDRs are disabled to prevent Backscatter. Is there something that I can do to get Exchange to send a bounce message to the sending mail server (or verify that message is being sent) so the sending mail server can notify its sender of the bounce?

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sendmail on Snow Leopard

- by Jay

I'm trying to get sendmail working on my MacBook Pro (OS 10.6.4), so that I can send mail with PHP's mail() function. If you know how to do this without sendmail, I'd be interested in that also. The plan is to send mail through smtp.gmail.com using my gmail account, unless you have a better idea. I did this and that didn't work. In /etc/postfix/smtp_sasl_passwords I tried both: smtp.yourisp.com username:password and smtp.yourisp.com [email protected]:password The problem seems to be that google doesn't like me. I don't think my ISP is blocking it because Mail.app can send email through smtp.gmail.com just fine. $email is my gmail address. $ printf "Subject: TestMail" | sendmail -f $email $email $ tail /var/log/mail.log Oct 21 19:38:18 Jays-MacBook-Pro postfix/master[8741]: daemon started -- version 2.5.5, configuration /etc/postfix Oct 21 19:38:18 Jays-MacBook-Pro postfix/qmgr[8743]: CAACBFA905: from=<$email>, size=377, nrcpt=1 (queue active) Oct 21 19:38:18 Jays-MacBook-Pro postfix/pickup[8742]: C2A68FA93A: uid=501 from=<$email> Oct 21 19:38:18 Jays-MacBook-Pro postfix/cleanup[8744]: C2A68FA93A: message-id=<20101021233818.$mydomain> Oct 21 19:38:18 Jays-MacBook-Pro postfix/qmgr[8743]: C2A68FA93A: from=<$email>, size=377, nrcpt=1 (queue active) Oct 21 19:38:18 Jays-MacBook-Pro postfix/smtp[8746]: initializing the client-side TLS engine Oct 21 19:38:18 Jays-MacBook-Pro postfix/smtp[8748]: initializing the client-side TLS engine Oct 21 19:38:49 Jays-MacBook-Pro postfix/smtp[8746]: connect to smtp.gmail.com[74.125.157.109]:25: Operation timed out Oct 21 19:38:49 Jays-MacBook-Pro postfix/smtp[8748]: connect to smtp.gmail.com[74.125.157.109]:25: Operation timed out Oct 21 19:38:49 Jays-MacBook-Pro postfix/smtp[8746]: CAACBFA905: to=<$email>, relay=none, delay=1334, delays=1304/0.04/30/0, dsn=4.4.1, status=deferred (connect to smtp.gmail.com[74.125.157.109]:25: Operation timed out) Oct 21 19:38:49 Jays-MacBook-Pro postfix/smtp[8748]: C2A68FA93A: to=<$email>, relay=none, delay=30, delays=0.08/0.05/30/0, dsn=4.4.1, status=deferred (connect to smtp.gmail.com[74.125.157.109]:25: Operation timed out) $ I also tried setting myhostname, mydomain, and myorigin in /etc/postfix/main.cf to $ nslookup myip (as displayed by http://www.whatismyip.com/) And still no luck. Any ideas?

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Can't access Port 80 from external

- by dewacorp.alliances

Hi there I have configuration like this: NETGEAR MODEM LINKSYS ROUTER SERVERS In the modem, I've setup as bridging and all the traffic is controlling by this ROUTER. Prior to this setup, I can access website from external (port 80) plus exchange servers (mail) and https. But now with this configuration, I can only send/receive using Exhcange servers and access OWA (Outlook web access using port 443) .... and no internal websites from outside. This is my config for LINKSYS ROUTER Application | Start | End | Protocol | IP Address Ms Exchange | 25 | 25 | Both (TCP/UDP) | 192.168.100.8 Internets | 80 | 80 | Both (TCP/UDP) | 192.168.100.11 SSL | 443 | 443 | Both (TCP/UDP) | 192.168.100.8 Exchange | 110 | 110 | Both (TCP/UDP) | 192.168.100.8 192.168.100.11 is a UBUNTU web server that running the apache which controlling the virtual name (extranet, cms, test) to redirect to the different servers. As you can see, the home internet is only allowing public IP address. Now I test this schenarion in internal network work nicely. For instance. If I type in extranet.XXX.local it goes to the right applicatios or if I try CMS.XXX.local again it goes to the right one. I also asked to ISP just in case if they are blocking the inbound port 80 for unknown reason. They said no. So I didn't understand why this happens. I suspect the configuration that I have between MODEM ROUTER but I counldn't work what it is. I don't have a documentation of previous settings and I don't know if there is a port that I need to open as well. I am appreciated your comment

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ntpdate cannot receive data

- by Hengjie

I have a problem where running ntpdate on my server doesn't return any data therefore I get the following error: [root@server etc]# ntpdate -d -u -v time.nist.gov 12 Apr 01:10:09 ntpdate[32072]: ntpdate [email protected] Fri Nov 18 13:21:21 UTC 2011 (1) Looking for host time.nist.gov and service ntp host found : 24-56-178-141.co.warpdriveonline.com transmit(24.56.178.141) transmit(24.56.178.141) transmit(24.56.178.141) transmit(24.56.178.141) transmit(24.56.178.141) 24.56.178.141: Server dropped: no data server 24.56.178.141, port 123 stratum 0, precision 0, leap 00, trust 000 refid [24.56.178.141], delay 0.00000, dispersion 64.00000 transmitted 4, in filter 4 reference time: 00000000.00000000 Thu, Feb 7 2036 14:28:16.000 originate timestamp: 00000000.00000000 Thu, Feb 7 2036 14:28:16.000 transmit timestamp: d3303975.1311947c Thu, Apr 12 2012 1:10:13.074 filter delay: 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 filter offset: 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 delay 0.00000, dispersion 64.00000 offset 0.000000 12 Apr 01:10:14 ntpdate[32072]: no server suitable for synchronization found I have tried Googling the 'no server suitable for synchronization found' error online and I have tried disabling my firewall (running iptables -L returns no rules). I have also confirmed with my DC that there are no rules that are blocking ntp (port 123). Does anyone have any ideas on how I may fix this? Btw, this is what the output should look like on a working server in another DC: 11 Apr 19:01:24 ntpdate[725]: ntpdate [email protected] Fri Nov 18 13:21:17 UTC 2011 (1) Looking for host 184.105.192.247 and service ntp host found : 247.conarusp.net transmit(184.105.192.247) receive(184.105.192.247) transmit(184.105.192.247) receive(184.105.192.247) transmit(184.105.192.247) receive(184.105.192.247) transmit(184.105.192.247) receive(184.105.192.247) transmit(184.105.192.247) receive(184.105.192.247) transmit(184.105.192.247) server 184.105.192.247, port 123 stratum 2, precision -20, leap 00, trust 000 refid [184.105.192.247], delay 0.18044, dispersion 0.00006 transmitted 4, in filter 5 reference time: d330364e.e956694f Wed, Apr 11 2012 18:56:46.911 originate timestamp: d3303765.8702d025 Wed, Apr 11 2012 19:01:25.527 transmit timestamp: d3303765.73b213e3 Wed, Apr 11 2012 19:01:25.451 filter delay: 0.18069 0.18044 0.18045 0.18048 0.18048 0.00000 0.00000 0.00000 filter offset: -0.00195 -0.00197 -0.00211 -0.00202 -0.00202 0.000000 0.000000 0.000000 delay 0.18044, dispersion 0.00006 offset -0.001970

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error: unexplained error (code 130) at rsync.c(541) [sender=3.0.7]

- by brazorf

This error: unexplained error (code 130) at rsync.c(541) [sender=3.0.7] error is happening after i changed router. Actually, i found out that this error just happens on a ctrl+c signal, so it could be not representative about the error itself. The command i run is very basic: rsync -avz --delete /local/path/ username@host:/path/to/remote/directory Basically, the rsync just stuck there and nothing's happening, until i ctrl+c. After interrupting the process i got the error in subject. I past the whole thing here: rsync -avvvvz --delete /source/path/ username@host:/path/to/direectory cmd=<NULL> machine=HOSTNAME user=username path=/path/to/direectory cmd[0]=ssh cmd[1]=-l cmd[2]=username cmd[3]=HOSTNAME cmd[4]=rsync cmd[5]=--server cmd[6]=-vvvvlogDtprze.iLsf cmd[7]=--delete cmd[8]=. cmd[9]=/path/to/direectory opening connection using: ssh -l username HOSTNAME rsync --server -vvvvlogDtprze.iLsf --delete . /path/to/direectory note: iconv_open("UTF-8", "UTF-8") succeeded. ^C[sender] _exit_cleanup(code=20, file=rsync.c, line=541): entered rsync error: unexplained error (code 130) at rsync.c(541) [sender=3.0.7] [sender] _exit_cleanup(code=20, file=rsync.c, line=541): about to call exit(130) The authentication runs on ssh via rsa key. I tried basic troubleshoot such as: ping the remote host ssh -l username remote.host check software firewall logs i asked the remote host sysadmin to check for logs, and when i run that command a ssh connection is actually being established and i can state there is no comunication/authentication/name resolution issue here. Rolling back to old router make this work again. Both client and server are running ubuntu 10.04. Try to take a look at my router configuration, where i'm no experienced at all, but i didnt see any "suspect" (what i was looking for is firewall blocking something) setting. The router itself is DLINK DVA-G3670B. Any suggestion? Thank You F.

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hosts.deny ignored by MacOSX 10.8

- by David Holm

I have been trying to set up my MacOS X Server, which I recently upgraded to Mountain Lion, to use denyhosts as I need to open port 22 to it. denyhosts is set up and adds entries to /etc/hosts.deny so I decided to add my laptops IP to it in order to verify that it actually works but I can still log in and my IP shows up in /private/var/log/system.log. I even rebooted the server once just to be sure there wasn't some service that had to be restarted. I tried the following entries: ALL: <my laptop's IP> sshd: <my laptop's IP> sshd: 127.0.0.1 My /etc/sshd_config has the following parameters set: UsePAM yes UseDNS no I Googled if deny.hosts has been deprecated in OSX 10.7 or 10.8 but I couldn't find any indications that it has. Any ideas of what is going wrong or if there is an alternative way to achieve the same result? Yes, a private key would solve this problem but for the time being I would like to stick to using password authentication. I also like the idea of denyhosts actually blocking access to all services running on the server and not just ssh.

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Port Forwarding to put my web server on The Internet

- by Chadworthington

I went to http://canyouseeme.org/ to check to see what my external IP address. Regardless of what port I enter, it tells me that the port is blocked. I have a LinkSys router that basically has the default settings with the exception that I have WEP encrptin setup and I have forwarded a few ports, including 80 and 69. I forwarded them to the 192.x.x.103 IP address of the PC which is running IIS. That PC runs Symantec Endpoint Protection, which I right mouse clicked in the tray to Disable. These steps used to make my PC visible so I could host my own web site in IIS on port 80, or some other port, like 69. Yet, the Open Port tool cannot see my IP when it checks eiether port and when I navigate to http://my external ip/ I get "page cant be displayed" At first I was thinking that maybe Comcast is blocking port 80, but 69 doesnt work eiether. I do not see any other blockking set up in my router and, as I mentioned, I went with teh defaults except where discussed. This is a corporate PC and Symantec End Point Protecion is new to it (this previously worked on teh same PC with Symantec Protection Agent), but I thought that disabling Sym End Pt from the tray, that that would effectively neutralize it. I do not have the rights to kill the program itself. Any suggestions on what else to try to make my PC externally visible?

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Block users from Social networking websites while firewall is down

- by SuperFurryToad

We currently have a SonicWall firewall, which does a pretty good job a blocking Social networking websites like Facebook and Bebo. The problem we are having is that sometimes we need to temporarily disable our firewall blocklist so we can update our company's page on Facebook for example. Whenever we do this, have see an avalanche of users logging on to their Facebook pages during work time. So what we need a way to block access while the firewall is down. For the sake of argument, we have two groups of users - "management" and "standard users". "standard users" would have no access to Facebook, but "management" users would have access. Perhaps something like a host file redirect for non-management users. This could probably be enforced via group policy that would call a bat file to copy down the host file, depending if the user was management or not. I'm keen to hear any suggestions for what the best practice would be for this in a Windows/AD environment. Yes, I know what we're doing here is trying to solve a HR problem using IT. But this is the way management wants it and we have a lot of semi-autonomous branch offices that we don't have a lot of day to day contact with, so an automated way of enforcing this would be the most preferable method.

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Ubuntu 12.04 open port 80 inside WLAN

- by Eduard

I have an nginx server running on ubuntu 12.04 that serves http through port 80 and https through port 443. Everything works fine if I access it from the same computer via localhost, 127.0.0.1 or the local IP 192.168.0.11. If I try to access the server from another computer in the same VLAN it does not work for http; it works for https. I have changed my nginx configuration to also listen to port 8000 for http; I can then access http from the other computer in the same VLAN via "http://192.168.0.11:8000". I also have a web server running on port 80 on a windows machine and can access it from another device in the same VLAN, therefore the router is not blocking incoming http traffic. The nginx process is run by root. I have used tcpdump and I see that packets are arriving to Ubuntu: 192.168.0.16.49735 192.168.0.11.80 and that some response is being given 192.168.0.11.80 192.168.0.16.49735 (I do not know what the response is though). There is no request arriving at the nginx web server (I have checked the access log). I have iptables empty. I have unsuccessfully tried to find a solution for a long time to this, it has now become a matter of happiness or bitterness :).

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My Reverse DNS PTR record seems to be right, but I'm still getting bouncing email

- by johnbr

Hello, I have a service (statusme.com) where I let people know (for example) that their kid's soccer games are cancelled because of bad weather. We send out emails to the people who have registered. I have a second server as a backup, (vps.statusme.com) and I've set up the application to send some of the email through the second server. But I'm getting complaints from various recipient SMTP servers that the email is considered spam. So I did some investigating, and it appears that they think my reverse DNS record isn't correct. But when I look at it via various rDNS websites and instructions I found elsewhere on ServerFault, everything looks correct: jb$ host -t a vps.statusme.com 8.8.8.8 Using domain server: Name: 8.8.8.8 Address: 8.8.8.8#53 Aliases: vps.statusme.com has address 66.84.8.246 jb$ host -t ptr 246.8.84.66.in-addr.arpa 8.8.8.8 Using domain server: Name: 8.8.8.8 Address: 8.8.8.8#53 Aliases: 246.8.84.66.in-addr.arpa domain name pointer vps.statusme.com. I'm confused about what I'm doing wrong. Thanks for any suggestions.

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sudo fdisk in a live session does not show all hard drives

- by cornbread

I am having Grub2 issues in my Ubuntu 10.04 dual boot, 2 hard drive system. So I am attempting to follow the standard grub2 reinstallation guide (cant post link because of spam filters allowing only one... ?_?) Don't know if this is the root of my problem, but my speedy internal HD with my OS on it is not showing up anywhere in a live session. Not in nautilus, behind fdisk.... no where. When I can get the main system to boot, there is no issue seeing all available partitions. But the live session sees only the 1TB internal media/backup hard drive. I need access to the other hard drive and it's partitions to finish the grub2 re-installation but I am not sure anymore that is the underlying issue. Anyone have experience with this? The issue I have identified as a grub2 issue is fully described here. SandPvvr describes it exactly. Some notes: I do not see the grub2 menu for my os's holding down the shift key after my bios screen works maybe 10% of the time Not related to reinstalling a windows os. havent been touched in a year do some web development. issue may have started when I was playing with ruby and django. not sure on this. Could a dev environment do this? fdisk in live session ubuntu@ubuntu:~$ sudo fdisk -l Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0001d518 Device Boot Start End Blocks Id System /dev/sdb2 1 121601 976759939 5 Extended /dev/sdb5 487 110765 885816036 83 Linux /dev/sdb6 110766 121601 87040138+ b W95 FAT32 /dev/sdb7 1 486 3903700+ 82 Linux swap / Solaris Partition table entries are not in disk order

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Port 5357 TCP on Windows 7 professional 64 bit?

- by Registered

Is there a reason this port is open, a quick Nmap scan and Nessus scan reveal it's open, why? Are there any ramifications if I close this port via the firewall rule set? Or does anyone here now more info about this port besides Google? WTF? 1)http://www.symantec.com/connect/blogs/who-left-tunnel-door-open-windows-firewall-vista-0 I know the talk is about Vista, but I am pretty sure it's the same port on 7, also. 2)Port 5357 common errors:The port is vulnerable to info leak problems allowing it to be accessed remotely by malicious authors. (Web Services for Devices) I am blocking this crap, if I have issues will just re-enable. Damn windows. Inbound rule for Network Discovery to allow WSDAPI Events via Function Discovery. [TCP 5357] You just got blocked, until I break something, will see. Time to re-Nmap and re-Nessus. Nmap scan 0 open ports after closing Port 5357,Win7 still works for now, one more scan with Nessus just to make sure all is well.

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Apache Mod SVN Access Forbidden

- by Cerin

How do you resolve the error svn: access to '/repos/!svn/vcc/default' forbidden? I recently upgraded a Fedora 13 server to 16, and now I'm trying to debug an access error with a Subversion server running on using Apache with mod_dav_svn. Running: svn ls http://myserver/repos/myproject/trunk Lists the correct files. But when I go to commit, I get the error: svn: access to '/repos/!svn/vcc/default' forbidden My Apache virtualhost for svn is: <VirtualHost *:80> ServerName svn.mydomain.com ServerAlias svn DocumentRoot "/var/www/html" <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory "/var/www/html"> Options Indexes FollowSymLinks AllowOverride None Order allow,deny Allow from all </Directory> <Location /repos> Order allow,deny Allow from all DAV svn SVNPath /var/svn/repos SVNAutoversioning On # Authenticate with Kerberos AuthType Kerberos AuthName "Subversion Repository" KrbAuthRealms mydomain.com Krb5KeyTab /etc/httpd/conf/krb5.HTTP.keytab # Get people from LDAP AuthLDAPUrl ldap://ldap.mydomain.com/ou=people,dc=mydomain,dc=corp?uid # For any operations other than these, require an authenticated user. <LimitExcept GET PROPFIND OPTIONS REPORT> Require valid-user </LimitExcept> </Location> </VirtualHost> What's causing this error? EDIT: In my /var/log/httpd/error_log I'm seeing a lot of these: [Fri Jun 22 13:22:51 2012] [error] [client 10.157.10.144] ModSecurity: Warning. Operator LT matched 20 at TX:inbound_anomaly_score. [file "/etc/httpd/modsecurity.d/base_rules/modsecurity_crs_60_correlation.conf"] [line "31"] [msg "Inbound Anomaly Score (Total Inbound Score: 15, SQLi=, XSS=): Method is not allowed by policy"] [hostname "svn.mydomain.com"] [uri "/repos/!svn/act/0510a2b7-9bbe-4f8c-b928-406f6ac38ff2"] [unique_id "T@Sp638DCAEBBCyGfioAAABK"] I'm not entirely sure how to read this, but I'm interpreting "Method is not allowed by policy" as meaning that there's some security Apache module that might be blocking access. How do I change this?

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Why can't I see all of the client certificates available when I visit my web site locally on Windows 7 IIS 7?

- by Jay

My team has recently moved to Windows 7 for our developer machines. We are attempting to configure IIS for application testing. Our application requires SSL and client certificates in order to authenticate. What I've done: I have configured IIS to require SSL and require (and tried accept) certificates under SSL Settings. I have created the https binding and set it to the proper server certificate. I've installed all the root and intermediate chain certificates for the soft certificates properly in current user and local machine stores. The problem When I browse to the web site, the SSL connection is established and I am prompted to choose a certificate. The issue is that the certificate is one that is created by my company that would be invalid for use in the application. I am not given the soft certificates that I have installed using MMC and IE. We are able to utilize the soft certs from our development machines to our Windows 2008 servers that host the application. What I did: I have attempted to copy the Root CA to every folder location for the Current User and Location Machine account stores that the company certificate's root is in. My questions: Could I be mishandling the certs anywhere else? Could there be a local/group policy that could be blocking the other certs from use? What (if anything) should have to be done differently on Windows 7 from 2008 in regards to IIS? Thanks for your help.

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SQL Server log backups "stalling"

- by MattK

I have interited a box running SQL Server 2008 and Windows 2003, and have had a few events where largeish (35GB) log backups "stall", both before and after the installation of SQL 2008 SP1. The server log ships to a standby, so regular log backups are taken at 15 minute intervals. However, after an index reorg causes the log to grow to about 35GB (on a DB with about 17GB of data), the next log backup runs to ~95% completion, then seems to stop. The process shows as suspended, with a wait state of BACKUPIO. CPU, read, and write activity on the SPID also does not change, and the process stays in this state for hours, when normally a backup of this size should complete in about 20 minutes. This server has a single RAID-1 volume, thus the source database files and destination backup files are on the same volume. However, I cannot determine if another process is blocking the backup. The backup SPID cannot be killed, and the only way to terminate the log backup and clear the lock on the backup file is to cycle the SQL Server service. There was one event where the backup terminated completely, with an error that another process had locked the backup file, but no details about what that process was. Can anyone suggest a cause or diagnostic process to this situation?

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Issue with exim4u

- by bretterer

I am using exim4u for a mail server on debian. Everything has been working fine until recently. I have not done anything to the server from the time it was working until now. I have a domain set up and is receiving and sending mail correctly. When i put a forwarding address in to a gmail address, I can still receive and send email from my webmail client but it never makes it to gmail. I have check logs and this is what I have found 2012-04-01 18:47:04 1SEPns-0000aN-Br DKIM: d=gmail.com s=20120113 c=relaxed/relaxed a=rsa-sha256 [verification succeeded] 2012-04-01 18:47:10 1SEPns-0000aN-Br H=mail-bk0-f43.google.com [209.85.214.43] Warning: X-Spam_score: -0.3 2012-04-01 18:47:10 1SEPns-0000aN-Br <= [email protected] H=mail-bk0-f43.google.com [209.85.214.43] P=esmtps X=TLS1.0:RSA_ARCFOUR_MD5:16 S=3424 id=CAGZkSKbYc7SJR+yXTgG8ubQvx4PNb0CwHG1DDKGeZ-qFiA$ 2012-04-01 18:47:11 1SEPns-0000aN-Br => /home/mail/mydomain.com/support/Maildir ([email protected]) <[email protected]> R=virtual_domains T=virtual_delivery 2012-04-01 18:47:12 1SEPns-0000aN-Br => [email protected] <[email protected]> R=dnslookup T=remote_smtp H=gmail-smtp-in.l.google.com [209.85.225.27] X=TLS1.0:RSA_ARCFOUR_SHA1:16 2012-04-01 18:47:12 1SEPns-0000aN-Br Completed I am not a mail server person so im not sure what everything here is saying. It appears to me that it is successfully sending mail to gmail though. I have checked my spam folder as well and nothing there either. If it would help to have some more information from my server, let me know because Im not sure what would be of help here.

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Howto enable SMPTS (465) postfix CentOS

- by user197284

I need help is enabling SMTPS. I use postfix , dovecot with MySQL(virtual domains). I do not know how to enable SMTPS(465). I already added tls related settings and key and certificate in the "/etc/postfix/main.cf" OS: Centos 6.4 64 bit Please my /etc/postfix/master.cf file here # ========================================================================== # service type private unpriv chroot wakeup maxproc command + args # (yes) (yes) (yes) (never) (100) # ========================================================================== smtp inet n - n - - smtpd -o content_filter=smtp-amavis:127.0.0.1:10024 -o receive_override_options=no_address_mappings pickup fifo n - n 60 1 pickup -o content_filter= -o receive_override_options=no_header_body_checks cleanup unix n - n - 0 cleanup qmgr fifo n - n 300 1 qmgr #qmgr fifo n - n 300 1 oqmgr 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 - - smtp # When relaying mail as backup MX, disable fallback_relay to avoid MX loops relay unix - - n - - smtp -o fallback_relay= # -o smtp_helo_timeout=5 -o smtp_connect_timeout=5 showq unix n - n - - showq error 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 # # ==================================================================== # Interfaces to non-Postfix software. Be sure to examine the manual # pages of the non-Postfix software to find out what options it wants. # ==================================================================== maildrop unix - n n - - pipe flags=DRhu user=vmail argv=/usr/local/bin/maildrop -d ${recipient} uucp unix - n n - - pipe flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient) ifmail unix - n n - - pipe flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient) bsmtp unix - n n - - pipe flags=Fq. user=foo argv=/usr/local/sbin/bsmtp -f $sender $nexthop $recipient # # spam/virus section # smtp-amavis unix - - y - 2 smtp -o smtp_data_done_timeout=1200 -o disable_dns_lookups=yes -o smtp_send_xforward_command=yes 127.0.0.1:10025 inet n - y - - smtpd -o content_filter= -o smtpd_helo_restrictions= -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,reject -o mynetworks=127.0.0.0/8 -o smtpd_error_sleep_time=0 -o smtpd_soft_error_limit=1001 -o smtpd_hard_error_limit=1000 -o receive_override_options=no_header_body_checks -o smtpd_bind_address=127.0.0.1 -o smtpd_helo_required=no -o smtpd_client_restrictions= -o smtpd_restriction_classes= -o disable_vrfy_command=no -o strict_rfc821_envelopes=yes # # Dovecot LDA dovecot unix - n n - - pipe flags=DRhu user=vmail:mail argv=/usr/libexec/dovecot/deliver -d ${recipient} # # Vacation mail vacation unix - n n - - pipe flags=Rq user=vacation argv=/var/spool/vacation/vacation.pl -f ${sender} -- ${recipient} retry unix - - n - - error proxywrite unix - - n - 1 proxymap Please help to enable SMTPS. I have amavis enabled

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Help trying to figure out why IIS7 is crashing / locking up / denying connections

- by Pure.Krome

Hi folks, I've got a pretty busy website that is running on a single web front end machine, on W2K8 + IIS7. Every now and then - eg. maybe monday at 3am or something, then a few days later .. some early morning time .. then nothing for 2 weeks ... etc - the website fails to respond to any client connections. ie. no one can connect to the website. I can remote desktop to the machine, etc no probs. I restart the app pool (the website is running in intergrated mode), still nothing. I try and get a crash dump of the process (it's around 600 mb maybe even more) ... that fails after about a min of trying (and i have plenty of HD space). The only way to fix this issue, is to manually stop the www service and then start it again. The stopping takes a while (a minute?) while starting is nearly instant. I'm at a loss to figure out what part of my code is causing this. At first, I thought it might be a stack overflow because of some error that might be going to the error page, which in turn errors .. rinse repeat boom. But i've had a look at the error page and it feels ok. So, I'm hoping someone might be able to help and say how I can correctly get a proper dump of the IIS process so i can then do some more autopsy on it. I would email Tess Ferrandez (the goddess of crash debuging) but I thought I'd try here before I spam her. Can anyone have any suggestions to how I can figure out how to start to debug this issue?

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Exchange 2010 Transport rules stepping on each other

- by TopHat

I have a group of users that I have to restrict email access for and so far using Exchange Transport Rules has worked very well. The problem I am having is that Rule 0 is supposed to bcc the email to a review mailbox but otherwise not change anything and Rule 9 is supposed to block the email and throw a custom NDR to tell the user why they were blocked. Here are my results in practice however. If Rule 0 is enabled and Rule 9 is enabled then only Rule 9 functions If Rule 0 is disabled and Rule 9 is enabled then Rule 9 functions If Rule 0 is enabled and Rule 9 is disabled then Rule 0 functions This is after the Transport Service has been restarted (multiple times actually). I have other rule pairs that work correctly. None of these are overlapping rulesets however. - copy email going to address outside domain and then block - copy email coming in from outside and then block Here is the rule for copying internal emails (Rule 0): Apply rule to messages from a member of Blind carbon copy (Bcc) the message to except when the message is sent to a member of or [email protected] Here is the rule to block the same email (rule 9): Apply rule to messages from a member of send 'Email to non-supervisors or managers has been prohibited. Please contact your supervisor for more information.' to sender with 5.7.420 except when the message is sent to , [email protected], The distribution group used for membership in these rules is used for the other blocking and copying rules and works as expected. Is there something I missed in this setup? All of the copy rules are at the front of the transport rule group and all the actual copies at at the end of the queue if that makes a difference. Any thoughts as to why the email doesn't get copied when it gets blocked?

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JBoss https on port other than 8080 not working

- by MilindaD

We have a server with two JBoss instances where one runs on 8080, the other on 8081. We need to have HTTPS enabled for the 8081 server, firstly we tried enabling https on the 8080 port instance by generating the keystore and editing the server.xml and it successfully worked. However when we tried the same thing for 8081 it did not, note that we removed https for the 8080 server first before enabling it for 8081. This is what was used for both server.xml for 8080 and 8081. The only difference was that the port was changed from 8080 to 8081 when trying to enable https for 8081 port instance. What am I doing wrong and what needs to be changed? NOTE : When I meant enabled for 8080 I meant when you visit https:// URL:8484 you will actually be visiting the 8080 port instance. However when ssl is enabled for 8081 and I visit https:// URL:8484 I get that the web page is unavailable. COMMENTLESS VERSION <Server> <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" /> <Listener className="org.apache.catalina.core.JasperListener" /> <Service name="jboss.web">  <Connector port="8080" address="${jboss.bind.address}" maxThreads="350" maxHttpHeaderSize="8192" emptySessionPath="true" protocol="HTTP/1.1" enableLookups="false" redirectPort="8443" acceptCount="100" connectionTimeout="20000" disableUploadTimeout="true" compression="on" ompressableMimeType="text/html,text/css,text/javascript,application/json,text/xml,text/plain,application/x-javascript,application/javascript"/> <Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true" maxThreads="150" scheme="https" secure="true" clientAuth="false" sslProtocol="TLS" address="${jboss.bind.address}" keystoreFile="${jboss.server.home.dir}/conf/supun1.keystore" keystorePass="aaaaaa" truststoreFile="${jboss.server.home.dir}/conf/supun1.keystore" truststorePass="aaaaaa" />  <Connector port="8009" address="${jboss.bind.address}" protocol="AJP/1.3" emptySessionPath="true" enableLookups="false" redirectPort="8443" /> <Engine name="jboss.web" defaultHost="localhost" jvmRoute="khms1"> <Realm className="org.jboss.web.tomcat.security.JBossSecurityMgrRealm" certificatePrincipal="org.jboss.security.auth.certs.SubjectDNMapping" allRolesMode="authOnly" /> <Host name="localhost" autoDeploy="false" deployOnStartup="false" deployXML="false" configClass="org.jboss.web.tomcat.security.config.JBossContextConfig" > <Valve className="org.jboss.web.tomcat.service.sso.ClusteredSingleSignOn" /> <Valve className="org.jboss.web.tomcat.service.jca.CachedConnectionValve" cachedConnectionManagerObjectName="jboss.jca:service=CachedConnectionManager" transactionManagerObjectName="jboss:service=TransactionManager" /> </Host> </Engine> </Service> </Server> WITH COMMENTS VERSION <Server>  <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />  <Listener className="org.apache.catalina.core.JasperListener" />  <Service name="jboss.web">  <Connector port="8080" address="${jboss.bind.address}" maxThreads="350" maxHttpHeaderSize="8192" emptySessionPath="true" protocol="HTTP/1.1" enableLookups="false" redirectPort="8443" acceptCount="100" connectionTimeout="20000" disableUploadTimeout="true" compression="on" ompressableMimeType="text/html,text/css,text/javascript,application/json,text/xml,text/plain,application/x-javascript,application/javascript"/>   <Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true" maxThreads="150" scheme="https" secure="true" clientAuth="false" sslProtocol="TLS" address="${jboss.bind.address}" keystoreFile="${jboss.server.home.dir}/conf/supun1.keystore" keystorePass="aaaaaa" truststoreFile="${jboss.server.home.dir}/conf/supun1.keystore" truststorePass="aaaaaa" />  <Connector port="8009" address="${jboss.bind.address}" protocol="AJP/1.3" emptySessionPath="true" enableLookups="false" redirectPort="8443" /> <Engine name="jboss.web" defaultHost="localhost" jvmRoute="khms1">  <Realm className="org.jboss.web.tomcat.security.JBossSecurityMgrRealm" certificatePrincipal="org.jboss.security.auth.certs.SubjectDNMapping" allRolesMode="authOnly" />  <Host name="localhost" autoDeploy="false" deployOnStartup="false" deployXML="false" configClass="org.jboss.web.tomcat.security.config.JBossContextConfig" >        <Valve className="org.jboss.web.tomcat.service.sso.ClusteredSingleSignOn" />  <Valve className="org.jboss.web.tomcat.service.jca.CachedConnectionValve" cachedConnectionManagerObjectName="jboss.jca:service=CachedConnectionManager" transactionManagerObjectName="jboss:service=TransactionManager" /> </Host> </Engine> </Service> </Server>

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Network Security Device/Software

- by Campo

We currently run Symantec Antivirus Corporate 10.2. The software is really easy to manage on a network but the actual virus detection isn't bad but the malware detection is crap. We recently were infected with a email bot that got us put on some block lists. This has been resolved. I cannot have that happen again. I would like to find a program as easy to manage as symantec that I can install on all the user's workstations as well as the servers. We run a windows 2003 domain. We have a couple 2008 test servers in the environment. Most of the workstations are xp though I am using windows 7 and symantect is not compatible with this OS... So we need a solution that would cover all those operating systems. If it could be installed on macs too that would be a bonus though not necessary at all. This software must detect: Viruses AND Malware I am looking for something that combines the features in anti-malware programs like malwarebytes or spybot with an antivirus program like symantec or AVG. Alternatively if there is a piece of hardware that is a firewall, router, and packet inspection for virus/spam that would be the most ideal solution. I then could supplement with a piece of software that could pickup what the hardware misses. Thank you for your suggestions.

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Known USB 2.0 devices don't install driver, but must be manually forced

- by Darragh

When a known USB 2.0 device is plugged in and detected, it doesn't install the driver correctly but shows a Code 28 error and lists the device under "Other Devices" in Device Manager. When view properties of this device , it shows the following status; The drivers for this device are not installed. (Code 28) There is no driver selected for the device information set or element. To find a driver for this device, click Update Driver. When updating the driver manually and selecting the appropriate driver Windows doesn't believes it's the correct driver, but you can force the installation and it works! The other condition the driver will auto-install is when the same USB device is plugged into a USB 3.0 port. Power related issues are not also causing this as I have tried vi a Docking station, USB hub. etc.. Devices tried; Jabra Headset USB-Mass Storage Device (flash disk and ext HD) MS Wireless Keyboard & Mouse USB Ethernet controller (USB-MAC controller) This is on a laptop part of a Domain with Windows 7 Ent 7601, I am logged in as a local administrator. There isn't any Group Policies blocking not signed driver or whitelisted devices on the domain. Any suggestions please feel free

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Exchange 2007 with Android activesync

- by lbanz

A few of our users noticed that it will stop working intermittently for them. I didn't believe it at first until I changed my android phone and it started occuring for me. It will just stop syncing completely, it looks like the server is blocking the device completely. This mainly occurs when they are using the wifi. I've done some testing. If I switch off the wifi and use the phone data plan it will work fine. When it's on the wifi network, I try and browse to the webmail/owa page and it says page not found! I did a dns lookup and they resolve correctly. If I use another device on the same wifi network, it can access the exchange servers fine. Sometimes the wifi network will just work without any issues. But when it fails, it looks like the phone constantly checks the server every second to see if it is online even though I've got it on manual sync. I was wondering whether it tries to sync too many times and exchange thinks its a denial service attack. My old android phone that works is Froyo and the new one is Icecream. People who have reported issues seems to be newer phones. They also tested their own wifi network at home and experience the same problem. We haven't patch our exchange recently before seeing this problem. Anyone has seen this issue?

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Accessing a shared folder in Windows Server 2008 R2.

- by Triztian

Hello all, seems my involvement with computers has grown and I've found my self in the need to access a shared folder on a server. I've read some documentation and managed to set up the folder as a share, for this I created a local group and for now just one local user that has access to the share, the folder is in the public user folder and it's permissions should be (and I believe they are) read/write. The problem is that I can't connect from a remote machine I mean I don't know how the way it should be accessed, the server has a public IP and we use it also as a host to our website I don't know if that affects it though, the folder will be used as the "keeper" for the QuickBooks company files and has the database server manager installed. I've tried setting up a VPN Connection to the but no success. The server has a domain name a "http://www.example.com" that redirects to our website, I am unsure if it could be accessed that way, also the share has a location displayed when I right-click properties Heres what I've tried Setting up a VPN Connection (Windows Vista and 7) Got to the point where I got asked for credential and entered the user I created (which is not an admin) but I got a "Connection fail error 800" I suppose this is because in the domain field I entered the servers workgroup. right-click add network connection (Windows 7) Went through the wizard until I reached the point of entering the location, tried many things, the name in the share's properties(\\SOMETHING\Share), the http://www.example.com , the IP address I'm quite unfamiliar with this, so I have my guesses: Since the group and user are local they do not have access to the folder. The firewall in the server is blocking my connection. Anyways, any help and guidence is truly appreciated.

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