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• How to set the delay between update queries in Mysql so that every query get executed succesfully?

  - by OM The Eternity

  Hi All I have to the Update query mulitple times for different parameters using for loop in my PHP Script, now the problem Is Whenever I do it, only my last query get executed, all the previous queries seems to be skipped. the loop goes like this: foreach($cntrlflagset as $cntrlordoc => $cntrlorflag){ for($t=0;$t<count($cntrlorflag);$t++){ $userlvl = "controller"; $docflag = 1; $postfix = "created"; $createdoc->updatedocseeflags($cntrlorflag[$t],$docflag,$cntrlordoc,$postfix,$userlvl); $docflag = 2; $postfix = "midlvl"; $createdoc->updatedocseeflags($cntrlorflag[$t],$docflag,$cntrlordoc,$postfix,$userlvl); } } Here, the called function $createdoc-updatedocseeflags($cntrlorflag[$t],$docflag,$cntrlordoc,$postfix,$userlvl); Contains the Update query: $query = "UPDATE tbl_docuserstatus SET"; //if($flag != ""){ $query .= " docseeflag_".$postfix." = '".$flag."'"; //} $query .= " WHERE doc_id = '".$doc_id."' AND user_id = '".$user_id."'"; if($userlvl == "midlvl"){ $query .= " AND doc_midlvluser = '1'"; }elseif($userlvl == "finallvl"){ $query .= " AND doc_finallvluser = '1'"; }elseif($userlvl == "creator"){ $query .= " AND doc_creator = '1'"; }elseif($userlvl == "controller"){ $query .= " AND doc_controller = '1'"; }elseif($docarchive == 1){ $query .= " AND doc_controller = '1'"; } So could some one tell me, How to set the delay between update queries in Mysql so that every query get executed succesfully? Thanks In Advance

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• How to change the mail domain server so it's not displaying IP? Changing [email protected] to [email protected]

  - by Pavel

  Hi guys. I'm kinda a noob as a server admin so please bear with me. I've installed postfix mail server and everything is working fine but the 'from' box is displaying [email protected]. I want to set it up so it displays domainname.com instead of IP. I just hope you know what I mean. My main.cf in postfix folder looks like this: # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. myhostname = mail.thevinylfactory alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = mail.thevinylfactory.com, thevinylfactory, localhost.localdomain, localhost relayhost = mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all Can anyone help me with this one? If you need any more details please let me know. Thanks in advance!

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• simple method to install a mail server

  - by oli

  I am looking for a simple way to install a mail server on my Ubuntu server. I would like to be able to receive and send emails though a webmail (e.g. roundcube). I have a domain name. The web server already works without any problem. When I googled "simple method to install mail server on Ubuntu", I arrive on blogs with literally hundreds of steps to install a mail server: A Mailserver on Ubuntu 12.04: Postfix, Dovecot, MySQL Creating a Mail Server on Ubuntu Postfix But, for sure I will make a mistake, if I follow those tutorials, and it will be very very time consuming. Most of the steps look very easy to automate, though. I've try several install methods: sudo apt-get install dovecot-postfix sudo tasksel install mail-server But from there, I have no idea how to add email accounts, and test if it actually works. Do you know if there is an automated way to install a mail server?

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• Why is my Pre to Postfix code not working?

  - by Anthony Glyadchenko

  For a class assignment, I have to use two stacks in C++ to make an equation to be converted to its left to right equivalent: 2+4*(3+4*8) -- 35*4+2 -- 142 Here is the main code: #include <iostream> #include <cstring> #include "ctStack.h" using namespace std; int main (int argc, char * const argv[]) { string expression = "2+4*2"; ctstack *output = new ctstack(expression.length()); ctstack *stack = new ctstack(expression.length()); bool previousIsANum = false; for(int i = 0; i < expression.length(); i++){ switch (expression[i]){ case '(': previousIsANum = false; stack->cmstackPush(expression[i]); break; case ')': previousIsANum = false; char x; while (x != '('){ stack->cmstackPop(x); output->cmstackPush(x); } break; case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': cout << "A number" << endl; previousIsANum = true; output->cmstackPush(expression[i]); break; case '+': previousIsANum = false; cout << "+" << endl; break; case '-': previousIsANum = false; cout << "-" << endl; break; case '*': previousIsANum = false; cout << "*" << endl; break; case '/': previousIsANum = false; cout << "/" << endl; break; default: break; } } char i = ' '; while (stack->ltopOfStack > 0){ stack->cmstackPop(i); output->cmstackPush(i); cout << i << endl; } return 0; } Here is the stack code (watch out!): #include <cstdio> #include <assert.h> #include <new.h> #include <stdlib.h> #include <iostream> class ctstack { private: long* lpstack ; // the stack itself long ltrue ; // constructor sets to 1 long lfalse ; // constructor sets to 0 // offset to top of the stack long lmaxEleInStack ; // maximum possible elements of stack public: long ltopOfStack ; ctstack ( long lnbrOfEleToAllocInStack ) { // Constructor lfalse = 0 ; // set to zero ltrue = 1 ; // set to one assert ( lnbrOfEleToAllocInStack > 0 ) ; // assure positive argument ltopOfStack = -1 ; // ltopOfStack is really an index lmaxEleInStack = lnbrOfEleToAllocInStack ; // set lmaxEleInStack to max ele lpstack = new long [ lmaxEleInStack ] ; // allocate stack assert ( lpstack ) ; // assure new succeeded } ~ctstack ( ) { // Destructor delete [ ] lpstack ; // Delete the stack itself } ctstack& operator= ( const ctstack& ctoriginStack) { // Assignment if ( this == &ctoriginStack ) // verify x not assigned to x return *this ; if ( this -> lmaxEleInStack < ctoriginStack . lmaxEleInStack ) { // if destination stack is smaller than delete [ ] this -> lpstack ; // original stack, delete dest and alloc this -> lpstack = // sufficient memory new long [ ctoriginStack . lmaxEleInStack ] ; assert ( this -> lpstack ) ; // assure new succeeded // reset stack size attribute this -> lmaxEleInStack = ctoriginStack . lmaxEleInStack ; } // copy original to destination stack for ( long i = 0 ; i < ctoriginStack . lmaxEleInStack ; i ++ ) *( this -> lpstack + i ) = *( ctoriginStack . lpstack + i ) ; this -> ltopOfStack = ctoriginStack . ltopOfStack ; // reset stack position attribute return *this ; } long cmstackPush (char lplaceInStack ) { // Push Method if ( ltopOfStack == lmaxEleInStack - 1 ) // stack is full can't add element return lfalse ; ltopOfStack ++ ; // acquire free slot *(lpstack + ltopOfStack ) = lplaceInStack ; // add element return ltrue ; // any number other than zero is true } long cmstackPop (char& lretrievedStackEle ) { // Pop Method if ( ltopOfStack < 0 ) { // stack has no elements lretrievedStackEle = -1 ; // dummy element return lfalse ; } lretrievedStackEle = *( lpstack + ltopOfStack ) ; // stack has element -- return it ltopOfStack -- ; // stack is pop'd return ltrue ; // any number other than zero is true } long cmstackLookAtTop (char& lretrievedStackEle ) { // Pop Method if ( ltopOfStack < 0 ) { // stack has no elements lretrievedStackEle = -1 ; // dummy element return lfalse ; } lretrievedStackEle = *( lpstack + ltopOfStack ) ; // stack has element -- return it return ltrue ; // any number other than zero is true } long cmstackHasAnEle (char& lretrievedTopOfStack ) { // Has element method lretrievedTopOfStack = ltopOfStack ; return ltopOfStack < 0 ? lfalse : ltrue ; // 0 - false stack does not have any ele } // 1 - true stack has at least one element long cmstackMaxNbrOfEle (char& lretrievedMaxStackEle ) { // Maximum element method lretrievedMaxStackEle = lmaxEleInStack ; // return stack size in reference var return ltrue ; // Return Maximum Size of Stack } } ; Thanks, Anthony.

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• How is incoming SMTP mail being delivered despite blocked port

  - by Josh

  I setup a MX mail server, everything works despite port 25 being blocked, I'm stumped as to why I am able to receive email with this setup, and what the consequences might be if I leave it this way. Here are the details: Connections to SMTP over port 25 and 587 both reliably connect over my local network. Connections to SMTP over port 25 are blocked from external IPs (the ISP is blocking the port). Connections to Submission SMTP over port 587 from external IPs are reliable. Emails sent from gmail, yahoo, and a few other addresses all are being delivered. I haven't found an email provider that fails to deliver mail to my MX. So, with port 25 blocked, I am assuming other MTA servers fallback to port 587, otherwise I can't imagine how the mail is received. I know port 25 shouldn't be blocked, but so far it works. Are there mail servers that this will not work with? Where can I find more about how this is working? -- edit More technical detail, to validate that I'm not missing something silly. Obviously in the transcript below I've replaced my actual domain with example.com. # DNS MX record points to the A record. $ dig example.com MX +short 1 example.com $ dig example.com A +short <Public IP address> # From a public server (not my ISP hosting the mail server) # We see port 25 is blocked, but port 587 is open $ telnet example.com 25 Trying <public ip>... telnet: Unable to connect to remote host: Connection refused # Let's try openssl $ openssl s_client -starttls smtp -crlf -connect example.com:25 connect: Connection refused connect:errno=111 # Again from a public server, we see port 587 is open $ telnet example.com 587 Trying <public ip>... Connected to example.com. Escape character is '^]'. 220 example.com ESMTP Postfix ehlo example.com 250-example.com 250-PIPELINING 250-SIZE 10485760 250-VRFY 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME 250-DSN 250-BINARYMIME 250 CHUNKING quit 221 2.0.0 Bye Connection closed by foreign host. Here is a portion from the mail log when receiving a message from gmail: postfix/postscreen[93152]: CONNECT from [209.85.128.49]:48953 to [192.168.0.10]:25 postfix/postscreen[93152]: PASS NEW [209.85.128.49]:48953 postfix/smtpd[93160]: connect from mail-qe0-f49.google.com[209.85.128.49] postfix/smtpd[93160]: 7A8C31C1AA99: client=mail-qe0-f49.google.com[209.85.128.49] The log shows that a connection was made to the local IP on port 25 (I'm not doing any port mapping, so it is port 25 on the public IP too). Seeing this leads me to hypothesize that the ISP block on port 25 only occurs when a connection is made from an IP address that is not known to be a mail server. Any other theories?

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• Thunderbird doesn't show folders on a new Dovecot install

  - by Zoran Zaric

  Hey, I set up a new mailserver with postfix and Dovecot some days ago, everything is working except for Thunderbird not showing any folders. Evolution shows me all folders. I migrated from a Courier install using imapsync. In the filesystem the folders don't have a INBOX in their name, so the tho folders ar called .Folder 1 not .INBOX.Folder 1. This is the output of dovecot -n: # 1.0.10: /etc/dovecot/dovecot.conf Warning: mail_extra_groups setting was often used insecurely so it is now deprecated, use mail_access_groups or mail_privileged_group instead base_dir: /var/run/dovecot/ log_timestamp: “%Y-%m-%d %H:%M:%S ” protocols: imap pop3 listen(default): *:143 listen(imap): *:143 listen(pop3): *:110 disable_plaintext_auth: no login_dir: /var/run/dovecot//login login_executable(default): /usr/lib/dovecot/imap-login login_executable(imap): /usr/lib/dovecot/imap-login login_executable(pop3): /usr/lib/dovecot/pop3-login first_valid_uid: 1001 last_valid_uid: 1001 mail_extra_groups: vmail mail_access_groups: vmail mail_location: maildir:/var/vmail/%d/%u maildir_copy_with_hardlinks: yes mail_executable(default): /usr/lib/dovecot/imap mail_executable(imap): /usr/lib/dovecot/imap mail_executable(pop3): /usr/lib/dovecot/pop3 mail_plugin_dir(default): /usr/lib/dovecot/modules/imap mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3 pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv auth default: user: nobody passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: sql args: /etc/dovecot/dovecot-sql.conf socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 432 user: vmail group: vmail Thanks!

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• Dovecot starting and running, but not listening on any port

  - by Dženis Macanovic

  Among others things I'm in charge of a Debian GNU/Linux (Wheezy) DomU for the mail services of the company i work for. Yesterday one HDD that was used for this particular server has died. After installing Debian again, Dovecot decided to no longer listen on any ports (checked with netstat -l). Other services (like Postfix and MySQL) work without problems. dovecot -n: # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-3-amd64 x86_64 Debian wheezy/sid ext3 auth_mechanisms = plain login disable_plaintext_auth = no first_valid_uid = 150 last_valid_uid = 150 mail_gid = mail mail_location = maildir:/var/vmail/%d/%n mail_uid = vmail namespace inbox { inbox = yes location = prefix = } pass db { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = mail mode = 0666 user = vmail } } service imap-login { inet_listener imaps { port = 993 ssl = yes } } service pop3-login { inet_listener pop3s { port = 995 ssl = yes } } ssl_cert = </etc/ssl/private/mail.crt ssl_key = </etc/ssl/private/mail.key userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol imap { mail_max_userip_connections = 25 } UID 150 is vmail (I double checked file permissions). I didn't install Dovecot from source, but via apt from the official Debian US mirror. There are no messages concerning Dovecot in /var/log/syslog except for: Oct 21 06:36:29 server dovecot: master: Dovecot v2.1.7 starting up (core dumps disabled) Any ideas?

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• All my emails to Yahoo!, Hotmail and AOL are going to Spam, though I've implemented every validation

  - by Chetan

  Hi, I've implemented everything and checked everything (SPF, DomainKey, DKIM, reverse lookup), and only Gmail is allowing my emails to go to Inbox. Yahoo, Hotmail and AOL are all sending my messages to Spam. What am I doing wrong? Please help! Following are the headers of messages to Yahoo, Hotmail and AOL. I've changed names and domain names. The domain names I'm sending mail from are polluxapp.com and gemini.polluxapp.com. Yahoo: From Shift Licensing Tue Jan 26 21:55:14 2010 X-Apparently-To: [email protected] via 98.136.167.163; Tue, 26 Jan 2010 13:59:12 -0800 Return-Path: X-YahooFilteredBulk: 208.115.108.162 X-YMailISG: gPlFT1YWLDtTsHSCXAO2fxuGq5RdrsMxPffmkJFHiQyZW.2RGdDQ8OEpzWDYPS.MS_D5mvpu928sYN_86mQ2inD9zVLaVNyVVrmzIFCOHJO2gPwIG8c2L8WajG4ZRgoTwMFHkyEsefYtRLMg8AmHKnkS0PkPscwpVHtuUD91ghsTSqs4lxEMqhqw60US0cwMn_r_DrWNEUg_sESZsYeZpJcCCPL0wd6zcfKmtYaIkidsth3gWJPJgpwWtkgPvwsJUU_cmAQ8hAQ7RVM1usEs80PzihTLDR1yKc4RJCsesaf4NUO_yN1cPsbFyiaazKikC.eiQk4Z3VU.8O5Vd8i7mPNyOeAjyt7IgeA_ X-Originating-IP: [208.115.108.162] Authentication-Results: mta1035.mail.sk1.yahoo.com from=example.com; domainkeys=pass (ok); from=example.com; dkim=permerror (bad sig) Received: from 127.0.0.1 (EHLO gemini.example.com) (208.115.108.162) by mta1035.mail.sk1.yahoo.com with SMTP; Tue, 26 Jan 2010 13:59:12 -0800 Received: from gemini.example.com (gemini [127.0.0.1]) by gemini.example.com (Postfix) with ESMTP id 3984E21A0167 for ; Tue, 26 Jan 2010 13:55:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=example.com; h=to :subject:from:content-type:message-id:date; s=mail; bh=bRIHfxE3S e+YeCrIOqziZsiESJA=; b=J+D56Czff+6wGjQycLEvHyT32+06Nngf+6h7Ep6DL SmmJv3ihiAFJIJiPxiwLNpUsOSHhwJYjYQtynbBnag40A6EUBIsucDR+VoEYD+Cc 9L0dV3QD5D77VpG9PnRQDQa91R+NPIt5og9xbYfUWJ1b/jXkZopb0VTM+H9tandM 24= DomainKey-Signature: a=rsa-sha1; c=nofws; d=example.com; h=to:subject :from:content-type:message-id:date; q=dns; s=mail; b=pO5YvvjGTXs 3Qa83Ibq9woLq5VSsxUD5uoSrjNrW9ICMmdWyJpb9oT5byFR9hMthomTmfGWkkh6 3VxtD0hb0HVonN+1iheqJ9QBBOctadLCAOPZV3mfA99XUu7Y0DR2qtkU/UkSe8In 5PENWFbwub88ZsRDiW3hCbNHl+UO8Jsc= Received: by gemini.example.com (Postfix, from userid 502) id 386DE21A0166; Tue, 26 Jan 2010 13:55:14 -0800 (PST) To: [email protected] Subject: Shift License For James Xavier From: "Shift Licensing" Content-type: text/html Message-Id: <[email protected] Date: Tue, 26 Jan 2010 13:55:14 -0800 (PST) Content-Length: 282` Hotmail: X-Message-Delivery: Vj0xLjE7dXM9MDtsPTA7YT0wO0Q9MjtTQ0w9Ng== X-Message-Status: n:0 X-SID-PRA: [email protected] X-AUTH-Result: NONE X-Message-Info: 6sSXyD95QpWzUBaRfzf3NMbaiSGCCYGXSczlzLw49r01I25elu3oYM0V2uNa8BV2O7DOiFEeewTBKMtN+PW+ig== Received: from gemini.example.com ([208.115.108.162]) by snt0-mc4-f7.Snt0.hotmail.com with Microsoft SMTPSVC(6.0.3790.3959); Tue, 26 Jan 2010 13:18:53 -0800 Received: from gemini.example.com (gemini [127.0.0.1]) by gemini.example.com (Postfix) with ESMTP id 9431321A0167 for ; Tue, 26 Jan 2010 13:18:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=gemini.example.com; h=to :subject:message-id:date:from; s=mail; bh=DLF0k+uELpY6If5o3SWlSj 7j0vw=; b=nAMpb47xTVh73y6a2rf6V1rtYHuufr46dtuwWtHyFC85QKfZJReJJL oFIPjgEC28/1wSdy8VbfLG1g64W1hvnJjet3rcyv3ANNYxnFaiH5yt3SDEiLxydS gjCmNcZXyiVsWtpv7atVRO/t/Own+oFB9zz/9mj43Bhm4bnZ2cTno= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gemini.example.com; h=to :subject:message-id:date:from; q=dns; s=mail; b=sFpNxlskyz4MYT38 BA/rQ6ZAcQjhy7STkLPckrCDVVZcE4/zukHyARq7guMtYCCEjXoIbVEtNikPC97F cGpJGGZrppTGjx62N0flxG8hvwejiJYnUJF1EIP4JckGWyEI+21vtWLLQ27eegtN fs9OkIQ2iUPC/4u8N1eqiff0VZU= Received: by gemini.example.com (Postfix, from userid 504) id 8ED7221A0166; Tue, 26 Jan 2010 13:18:53 -0800 (PST) To: [email protected] Subject: Testing this Message-Id: <[email protected] Date: Tue, 26 Jan 2010 13:18:53 -0800 (PST) From: [email protected] Return-Path: [email protected] X-OriginalArrivalTime: 26 Jan 2010 21:18:54.0039 (UTC) FILETIME=[29CEE670:01CA9ECD] AOL: X-AOL-UID: 3158.1902377530 X-AOL-DATE: Tue, 26 Jan 2010 5:07:23 PM Eastern Standard Time Return-Path: Received: from rly-mg06.mx.aol.com (rly-mg06.mail.aol.com [172.20.83.112]) by air-mg06.mail.aol.com (v126.13) with ESMTP id MAILINMG061-a1d4b5f6787a4; Tue, 26 Jan 2010 17:07:22 -0500 Received: from gemini.example.com (gemini.example.com [208.115.108.162]) by rly-mg06.mx.aol.com (v125.7) with ESMTP id MAILRELAYINMG067-a1d4b5f6787a4; Tue, 26 Jan 2010 17:07:04 -0500 Received: from gemini.example.com (gemini [127.0.0.1]) by gemini.example.com (Postfix) with ESMTP id 32B3821A0167 for ; Tue, 26 Jan 2010 14:07:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=gemini.example.com; h=to :subject:message-id:date:from; s=mail; bh=RL0GLHd3dZ8IlIHoHIhA/U cLtUE=; b=BKg4p3qnaIdFRjAbvUa+Hwcyc6W91v4B4hN95dVymJrxyUBycWMUSC nzKmJ5QllhCYjwO+S7GrRdmlFpjBaK8kt2qmdCyC2UuiDF6xY6MXx/DBF56QpYtZ YDY4kXdiEMSbooH14B4CCPhaCTdC1wCtV0diat3EANCLxSDYAYq5k= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gemini.example.com; h=to :subject:message-id:date:from; q=dns; s=mail; b=fDSjNpfWs7TfGXda uio8qbJIyD+UmPL+C0GM1VeeV8FADj6JiYIT1nT3iBwSHlrLFCJ1wxPbE4d9CGl8 gQkPIV6T4TL7ha052nur0EOWoBLoBAOmhTshF/gsIY+/KMibbIczuRyTgIGVV5Tw GZVGFddVFOYgee7SAu0KNFm7aIk= Received: by gemini.example.com (Postfix, from userid 504) id 2D5F521A0166; Tue, 26 Jan 2010 14:07:03 -0800 (PST) To: [email protected] Subject: Testing Message-Id: <[email protected] Date: Tue, 26 Jan 2010 14:07:03 -0800 (PST) From: [email protected] X-AOL-IP: 208.115.108.162 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d227.1 ; domain : gemini.example.com DKIM : pass X-Mailer: Unknown (No Version) Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit

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• Dovecot throws obsolete warnings, even though dovecot.conf updated on Ubuntu 11

  - by John Bowlinger

  In trying to set up SASL for dovecot on Ubuntu 11, I keep getting obsolete warnings in my log: Sep 10 15:33:53 server1 dovecot: config: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:24: passdb {} has been replaced by passdb { driver= } Sep 10 15:33:53 server1 dovecot: config: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:27: userdb {} has been replaced by userdb { driver= } Even though my dovecot.conf file looks like this: protocols = none auth default { mechanisms = plain login passdb { driver=pam } userdb { driver=passwd } socket listen { client { path = /var/spool/postfix/private/auth mode = 0660 user = postfix group = postfix } } } Even when I try: driver=etc/pam.d/dovecot driver=etc/passwd I still get the same error. Looking at the example config file: cat /usr/share/doc/dovecot-common/dovecot/example-config/dovecot.conf was of no help. Dovecot is running: ps -A | grep 'dovecot' 9663 ? 00:00:00 dovecot But I can't seem to get that elusive "dovecot-auth" process. Anyone know what's going on?

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• Why do I need lib64 on my 32 bit machine?

  - by Tim

  I am trying to install Oracle on my 32-bit machine that runs Ubuntu 10.4. I am following install Oracle on Ubuntu tutorial. At the very first step there is a requirement to manually install library libstdc++5. Author does 2 steps: download libstdc++5_3.3.6-17ubuntu1_amd64.deb from here download ia32-libs_2.7ubuntu6.1_amd64.deb from here As you may have probably noticed these 2 files contain an "_amd64" postfix, which pointed me out that author is using 64-bit amd processor. Each of these files author copied to /usr/lib64 and /usr/lib32 folders correspondingly and simply make soft links libstdc++.so.5 in both folders. Since I am running 32-bit machine I have simply downloaded those 2 files without "_amd64" postfix. Unexpectedly for me I have also found 2 lib folders in my /usr folder: /usr/lib64 and /usr/lib. So here is my problem: I do not understand which files and where do I have to copy: 1) Do I have to make the same steps as the author has done, i.e. download files with "_amd64" postfixes and place them in my /usr/lib64 and /usr/lib folders? 2) Or do I have to use libraries without "_amd64" postfix? And one more question: why do I have /usr/lib64 at all?

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• Logs are written to *.log.1 instead of *.log

  - by funkadelic

  For some reason my log files are writing to the *.log.1 files instead of the *.log files, e.g. for my Postfix log files it is writing to /var/log/mail.log.1 and not /var/log/mail.log as expected. Same goes for mail.err. It looks like it's also doing it for auth.log and syslog. Here is a ls -lt snippet of my /var/log directory, showing the more recently touched log files in reverse chronological order -rw-r----- 1 syslog adm 4608882 Dec 18 12:12 auth.log.1 -rw-r----- 1 syslog adm 4445258 Dec 18 12:12 syslog.1 -rw-r----- 1 syslog adm 2687708 Dec 18 12:11 mail.log.1 -rw-r----- 1 root adm 223033 Dec 18 12:04 denyhosts -rw-r--r-- 1 root root 56631 Dec 18 11:40 dpkg.log -rw-rw-r-- 1 root utmp 292584 Dec 18 11:39 lastlog -rw-rw-r-- 1 root utmp 9216 Dec 18 11:39 wtmp ... And ls -l mail.log*: -rw-r----- 1 syslog adm 0 Dec 16 06:31 mail.log -rw-r----- 1 syslog adm 2699809 Dec 18 12:28 mail.log.1 -rw-r----- 1 syslog adm 331704 Dec 9 06:45 mail.log.2.gz -rw-r----- 1 syslog adm 235751 Dec 2 06:40 mail.log.3.gz Is there something that is misconfigured? I tried restarting postfix and it still wrote to mail.log.1 afterwards (same with a postix stop; postfix start, too).

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• Email bouces to tell me it was delivered?

  - by flamey

  I get this back after sending an email. It says "Your message was successfully delivered", then why do I even get this? Or this phrase referes to something else? Reporting-MTA: dns; gmmr6.centrum.cz X-Postfix-Queue-ID: CDBBB8016CE1 X-Postfix-Sender: rfc822; [SENDER_EMAIL] Arrival-Date: Sat, 5 Mar 2011 22:04:41 +0100 (CET) Final-Recipient: rfc822; [RECIPIENT_EMAIL] Original-Recipient: rfc822;[RECIPIENT_EMAIL] Action: delivered Status: 2.0.0 Diagnostic-Code: X-Postfix; delivery via maildaemon: OK This is the mail system at host gmmr6.centrum.cz. Your message was successfully delivered to the destination(s) listed below. If the message was delivered to mailbox you will receive no further notifications. Otherwise you may still receive notifications of mail delivery errors from other systems. The mail system <[RECIPIENT_EMAIL]>;: delivery via maildaemon: OK

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• What is a easiest way to implement Mail Server in ubuntu and hook in webmail through XAMPP?

  - by Parris

  Hi Everyone, I currently have xampp running on my ubuntu server. I tried a variety of things including installing, postfix+dovecot+roundcube+postfixadmin (postfix+dovecot work I think, postfix admin also works, roundcube works and connects to dovecot but i cant create user accounts, or figure out how that works), citadel (it installed, but I have no idea how to make it work with xampp for webmail) and i tried messing with exim and vexim a bit also. In short I feel like this should be a lot easier, and I can't figure it out haha. XAMPP works fine. I got my server running with everything. I was thinking about mercury mail, but I need a webmail solution also. I was thinking about google apps, but 50 bucks a year per user is a steep change from free. Thanks for the help!

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• Windows Azure openSUSE: rcnetwork not starting

  - by djechelon

  I have a Linux VM in Azure, created from their default image. My problem is simply that the init script network doesn't look like to start, so dependent services (apache, postfix...) won't start. If I run yast runlevel and try to start postfix it asks me to start network first: if I accept, network is started without errors and then postfix is started. While network is configured to start on boot, it just doesn't appear to have started. Anyway, SSH connections work fine. Currently, I had to edit my init scripts and remove network from the Required-Start list, but that didn't work for posftix (even after running systemctl --system daemon-reload). How can I fix all this?

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• Single CAS web application in a cluster

  - by Dolf Dijkstra

  Recently a customer wanted to set up a cluster of CAS nodes to be used together with WebCenter Sites. In the process of setting this up they realized that they needed to create a web application per managed server. They did not want to have this management burden but would like to have one web application deployed to multiple nodes. The reason that there is a need for a unique application per node is that the web-application contains information that needs to be unique per node, the postfix for the ticket id.  My customer would like to externalize the node specific configuration to either a specific classpath per managed server or to system properties set at startup.It turns out that the postfix for ticket ids is managed through a property host.name and that this property can be externalized.The host.name property is used in: /webapps/cas/WEB-INF/spring-configuration/uniqueIdGenerators.xmlIt is set in /webapps/cas/WEB-INF/spring-configuration/propertyFileConfigurer.xmlin a PropertyPlaceholderConfigurer.The documentation for PropertyPlaceholderConfigurer:http://static.springsource.org/spring/docs/2.0.x/api/org/springframework/beans/factory/config/PropertyPlaceholderConfigurer.htmlThis indicates that the properties defined through the PropertyPlaceHolderConfigurer can be externalized.To enable this externalization you would need to change host.properties so it is generic for all the managed servers and thus can be reused for all the managed servers: host.name=${cluster.node.id}Next step is to change the startup scripts for the managed servers and add a system property for -Dcluster.node.id=<something unique and stable>.Viola, the postfix is externalized and the web application can be shared amongst the cluster nodes.

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• Chef: Load Attributes from encrypted databag in json role

  - by jcvj

  I'm want to use the postfix cookbook for chef. The sasl password is expected to be in an attribute. So usually you would do this: "default_attributes": { "postfix": { "sasl": { "smtp_sasl_passwd": "somepassword" } } } The thing is: I don't want to have the password in the repository in plain text. So I put it in an encrypted data bag. Now I want to access it. This can be done with this: Chef::EncryptedDataBagItem.load("passwords", "postfix")['password'] The problem: This only works in a .rb file, but my role is in json; all my roles are in json! I don't want to change that just for this purpose. Does anybody have an idea what to do here? Help is very appreciated.

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• Why does Google mark one e-mail as spam while does not the other?

  - by nKn

  I've a Postfix installation which works fine, I don't get any trouble with mails sent through a mail client (in my case, Thunderbird or RoundCube) when the To: address is a GMail account. However, I recently needed to use the PHPMailer tool to send some e-mails to some GMail accounts, so I configured an account to be used via SASL authentication + TLS. I don't mean mass mailing, just 2-3 mails. If I send the e-mail from the Thunderbird or RoundCube clients, the mail is not marked as spam. However, if I use PHPMailer, it always gets catalogued as spam. So I compared both headers and I just can't find the reason why the second is marked as spam while the first one is just ok. The first header sent from a mail client which is not marked as spam: Delivered-To: [email protected] Received: by 10.76.153.102 with SMTP id vf6csp230573oab; Tue, 19 Aug 2014 11:08:19 -0700 (PDT) X-Received: by 10.60.23.39 with SMTP id j7mr45544050oef.20.1408471699715; Tue, 19 Aug 2014 11:08:19 -0700 (PDT) Return-Path: <[email protected]> Received: from mail.mydomain.com (X.ip-92-222-X.eu. [92.222.X.X]) by mx.google.com with ESMTPS id t5si27115082oej.10.2014.08.19.11.08.18 for <[email protected]> (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 19 Aug 2014 11:08:19 -0700 (PDT) Received-SPF: pass (google.com: domain of [email protected] designates 92.222.X.X as permitted sender) client-ip=92.222.X.X; Authentication-Results: mx.google.com; spf=pass (google.com: domain of [email protected] designates 92.222.X.X as permitted sender) [email protected]; dkim=pass (test mode) [email protected] Received: by mail.mydomain.com (Postfix, from userid 111) id D8F69120293D; Tue, 19 Aug 2014 19:08:17 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mydomain.com; s=mail; t=1408471697; bh=wKMX9gkQ7tCLv8ezrG5t4bICm/SSLQsNfTdZMToksWw=; h=Date:From:To:Subject:From; b=qRNcYVdmk+n3D1uuv0FInTx7/LzH2ojck9DgCmabFPvfke233lkojUOjezCUGx7iV DL8EayZ28mzzzHpB7ETeMzop/5OS3BmvFtGKVD9gzc78cDIFXTDoRFAnkRWDR2IOxI SOn5tiyODTFpkbDgJOndzQ6qL5K0S9ASNGCZrNL4= X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on vpsX.ovh.net X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=ALL_TRUSTED,T_DKIM_INVALID autolearn=ham autolearn_force=no version=3.4.0 Received: from [192.168.1.111] (unknown [77.231.X.X]) (using TLSv1 with cipher ECDHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: [email protected]) by mail.mydomain.com (Postfix) with ESMTPSA id 910341202624 for <[email protected]>; Tue, 19 Aug 2014 19:08:17 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mydomain.com; s=mail; t=1408471697; bh=wKMX9gkQ7tCLv8ezrG5t4bICm/SSLQsNfTdZMToksWw=; h=Date:From:To:Subject:From; b=qRNcYVdmk+n3D1uuv0FInTx7/LzH2ojck9DgCmabFPvfke233lkojUOjezCUGx7iV DL8EayZ28mzzzHpB7ETeMzop/5OS3BmvFtGKVD9gzc78cDIFXTDoRFAnkRWDR2IOxI SOn5tiyODTFpkbDgJOndzQ6qL5K0S9ASNGCZrNL4= Message-ID: <[email protected]> Date: Tue, 19 Aug 2014 19:08:24 +0100 From: My Name <[email protected]> User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: My other account <[email protected]> Subject: . Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit . The second header sent from PHPMailer which is always marked as spam: Delivered-To: [email protected] Received: by 10.76.153.102 with SMTP id vf6csp230832oab; Tue, 19 Aug 2014 11:12:10 -0700 (PDT) X-Received: by 10.60.121.67 with SMTP id li3mr44086252oeb.17.1408471930520; Tue, 19 Aug 2014 11:12:10 -0700 (PDT) Return-Path: <[email protected]> Received: from mail.mydomain.com (X.ip-92-222-X.eu. [92.222.X.X]) by mx.google.com with ESMTPS id w8si27103806obn.30.2014.08.19.11.12.10 for <[email protected]> (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 19 Aug 2014 11:12:10 -0700 (PDT) Received-SPF: pass (google.com: domain of [email protected] designates 92.222.X.X as permitted sender) client-ip=92.222.X.X; Authentication-Results: mx.google.com; spf=pass (google.com: domain of [email protected] designates 92.222.X.X as permitted sender) [email protected]; dkim=pass (test mode) [email protected] Received: by mail.mydomain.com (Postfix, from userid 111) id 1999D120293D; Tue, 19 Aug 2014 19:12:09 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mydomain.com; s=mail; t=1408471929; bh=N1JuHq1S+8GrjHcEK3xn8P1JS+ygEBv5LKe0BiXuVJo=; h=Date:To:From:Reply-to:Subject:From; b=K7tcPyArzSTY91VEw6mAAFtDurSGwgTLGkfUZdC5mqsg0g/1LzmZkgwdjj4NdJa6M E2kDz3dwYN8FcZmbampJYFXxj4NQVtSnzjiWV40rpfOFqD2rXDGNIyB2QOjBZZ4WK3 7s4lyoJ/BrdQH4en8ctLVsDHed/KpHD4iGFEl67E= X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on vpsX.ovh.net X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=ALL_TRUSTED,T_DKIM_INVALID autolearn=ham autolearn_force=no version=3.4.0 Received: from rpi.mydomain.com (unknown [77.231.X.X]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: [email protected]) by mail.mydomain.com (Postfix) with ESMTPSA id B42AF1202624 for <[email protected]>; Tue, 19 Aug 2014 19:12:08 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mydomain.com; s=mail; t=1408471928; bh=N1JuHq1S+8GrjHcEK3xn8P1JS+ygEBv5LKe0BiXuVJo=; h=Date:To:From:Reply-to:Subject:From; b=iXPM0tS36swudPTT4FOHHtPi5Ll6LbR60kNqCinZ8utcWoFE31SFTpoMEq5aCM5ux wQMdFiN8c6vkjRGabmvqFTTIbwJsrToHo/4+Lt5HEBoQQE2Y3T+xGmnmGAHCS6stKB yb7SVmtrIAsVtSMKA8VYIbmu2oYqV3afYt7g0OMQ= Date: Tue, 19 Aug 2014 20:12:07 +0200 To: [email protected] From: Trying another account <[email protected]> Reply-to: Trying another account <[email protected]> Subject: . Message-ID: <[email protected]> X-Priority: 3 X-Mailer: PHPMailer 5.1 (phpmailer.sourceforge.net) MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="UTF-8" . I also tried: Adding a User-Agent header to match the first one. Removing the X-Mailer header. No one of them made a difference. Is there some significant difference which is making the second e-mail to be marked as spam by Google?

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• Postfixadmin Invalid Query

  - by Jm Cruz

  This is my first time running a postfixadmin, so in my setup.php, I'm getting this error DEBUG INFORMATION: Invalid query: Unknown column 'create_date' in 'mailbox' I'm running it with MySQL. So if i'm right, my guess is that i need to create a column? under mailbox table on the postfix database? but how or whats the right syntax into creating a timedate column? My knowledge with mysql and postfix are very minimal btw. Thanks in advance.

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• How could I make a bash script to execute apt-get?

  - by poz2k4444

  I'm trying to automatize some configurations I have with bash script, I've never done this before so I tried with something easy like a Hello World! and everything works just fine, but then I tried something like this: #!/bin/bash sudo su apt-get purge postfix and it doesn't do anything, I check and postfix is still installed, and at any time it asks for any entry of mine, I just tried with apt-get but I'll do things like ssh-keygen or even write files I guess with cat or something, how could I do the script working and also seeing what's going on?

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• No mail for root message [closed]

  - by Werulz

  I want to receive email when people login to my server via ssh (as a security measure), however, when I login, I get: No mail for root Email is [email protected] Does it need Postfix to work? I already install it on server but i haven't configured it Can you give me a tutorial to configure Postfix in case it needed? Will email be sent even if my domain hasn't been propagated yet? I added this in .bash_profile echo 'ALERT - Root Shell Access on:' `date` `who` | mail -s "Alert: Root Access from `who | awk '{print $6}'`" [email protected]

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• Replace named group in regex

  - by Tomas Voracek

  I want to use regular expression same way as string.Format. I will explain I have: string pattern = "^(?<PREFIX>abc_)(?<ID>[0-9])+(?<POSTFIX>_def)$"; string input = "abc_123_def"; Regex regex = new Regex(pattern, RegexOptions.IgnoreCase); string replacement = "456"; Console.WriteLine(regex.Replace(input, string.Format("${{PREFIX}}{0}${{POSTFIX}}", replacement))); This works, but i must provide "input" to regex.Replace. I do not want that. I want to use pattern for matching but also for creating strings same way as with string format, replacing named group "ID" with value. Is that possible? I'm looking for something like: string pattern = "^(?<PREFIX>abc_)(?<ID>[0-9])+(?<POSTFIX>_def)$"; string result = ReplaceWithFormat(pattern, "ID", 999); Result will contain "abc_999_def". How to accomplish this?

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• Mail in the cloud? (web service for email)

  - by bambax

  I have multiple websites that need to send mail (after successful signup, etc.); I maintain a Postfix instance just for this (it never receives any incoming mail). This Postfix instance is a pain: it is sometimes broken, is regularly attacked, produces enormous amounts of logs, etc. These problems could certainly be dealt with by an experienced Postfix admin, but that's not me. Is there a service that would be just like Twilio, but for email? IE: a web service for sending mail.

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• Email sent via Google via relayhost being marked as spam

  - by Mark H

  Company email hosted by Google Apps. Company PBX in-house is Elastix. All voicemails received on the extensions of Elastix are supposed to be emailed by the CentOS server (Postfix) to the email address of the employee. Using relayhost on postfix, I am sending those emails through Google Apps (smtp.gmail.com), but some of these voicemail emails end up in the spam. Sending it through Google, and sending it to an email hosted by Google - yet there's spam. Email sent from the Google Apps interface - no complaints of it going to spam - just from the Elastix server. I've just asked our DNS domain guys to add spf records, but is that all that's needed? Some help please!

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• links for 2010-03-24

  - by Bob Rhubart

  @dhinchcliffe: When online communities go to work "As we see a growing set of examples of successful online communities in the enterprise space (both internally and externally), the broad outlines are emerging of what is turning into a vital new channel for innovation, business agility, customer relationships, and productive output for most organizations: Online communities as one of the most potent new ways to achieve business objectives, both in terms of cost and quality." -- Dion Hinchcliffe (tags: enterprisearchitecture entarch enterprise2.0 socialmedia) Steven Chan: WebCenter 11g (11.1.1.2) Certified with E-Business Suite Release 12 Steven Chan shares information on WebCenter 11g's (11.1.1.2) certification with Oracle E-Business Suite Release 12, along with a list of certified EBS 12 Platforms (tags: oracle otn enterprise2.0 webcenter ebs) @oraclenerd: 1Z0-052 - Exploring the Oracle Database Architecture Oracle ACE Chet "Oraclenerd" Justice shares a list of resources/documentation covering Oracle Database Architecture. (tags: oracle otn oracleace dba certification architecture) @oraclenerd: 1Z0-052 - Books "I don't believe I have ever purchased a book on or about Oracle. The documentation provided, especially for the database, is top notch. There is so much information available out there if you just know how to find it. Reading AskTom for years didn't hurt either." -- Chet "@oraclenerd" Justice. (tags: otn oracle oracleace certification dba) Lucas Jellema: Castle in the clouds – Building the Connexys SaaS application with Fusion Middleware Oracle ACE Director Lucas Jellema shares the slides from the presentation he and colleague Arne van der Ing submitted for OBUG 2010. (tags: otn oracle oracleace cloud saas obug fusionmiddleware connexys) John Burke: Why Your ERP System Isn't Ready for the Next Evolution of the Enterprise "[ERP] has to become a stealthy modern app to help you quickly adapt to business changes while managing vital information. And through modern middleware it will connect to everything. So yes ERP as we've know it is dead, but long live ERP as a connected application member of the modern enterprise." -- John Burke, Group VP, Applications Business Unit, Oracle (tags: oracle otn entarch erp) Darwin-IT: Postfix for handling mail in your integration solution "It took me some time to understand Postfix. I was quite overwhelmed by the options. And it took me some time to figure out how to configure it for this particular usecase...But as with most other things..it turns out to be simple." -- Martien van den Akker (tags: oracle linux soa postfix) TheServerSide.com: Cameron Purdy at TSSJS 2010: If Java beats C++, what's next? ''It turns out that Java performance is much better on modern architecture. That is because of multicore processors and in-lining.'' -- Cameron Purdy, as quoted in an article by Jack Vaughn (tags: oracle java otn c++)

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• How can I modify my Shunting-Yard Algorithm so it accepts unary operators?

  - by KingNestor

  I've been working on implementing the Shunting-Yard Algorithm in JavaScript for class. Here is my work so far: var userInput = prompt("Enter in a mathematical expression:"); var postFix = InfixToPostfix(userInput); var result = EvaluateExpression(postFix); document.write("Infix: " + userInput + "<br/>"); document.write("Postfix (RPN): " + postFix + "<br/>"); document.write("Result: " + result + "<br/>"); function EvaluateExpression(expression) { var tokens = expression.split(/([0-9]+|[*+-\/()])/); var evalStack = []; while (tokens.length != 0) { var currentToken = tokens.shift(); if (isNumber(currentToken)) { evalStack.push(currentToken); } else if (isOperator(currentToken)) { var operand1 = evalStack.pop(); var operand2 = evalStack.pop(); var result = PerformOperation(parseInt(operand1), parseInt(operand2), currentToken); evalStack.push(result); } } return evalStack.pop(); } function PerformOperation(operand1, operand2, operator) { switch(operator) { case '+': return operand1 + operand2; case '-': return operand1 - operand2; case '*': return operand1 * operand2; case '/': return operand1 / operand2; default: return; } } function InfixToPostfix(expression) { var tokens = expression.split(/([0-9]+|[*+-\/()])/); var outputQueue = []; var operatorStack = []; while (tokens.length != 0) { var currentToken = tokens.shift(); if (isNumber(currentToken)) { outputQueue.push(currentToken); } else if (isOperator(currentToken)) { while ((getAssociativity(currentToken) == 'left' && getPrecedence(currentToken) <= getPrecedence(operatorStack[operatorStack.length-1])) || (getAssociativity(currentToken) == 'right' && getPrecedence(currentToken) < getPrecedence(operatorStack[operatorStack.length-1]))) { outputQueue.push(operatorStack.pop()) } operatorStack.push(currentToken); } else if (currentToken == '(') { operatorStack.push(currentToken); } else if (currentToken == ')') { while (operatorStack[operatorStack.length-1] != '(') { if (operatorStack.length == 0) throw("Parenthesis balancing error! Shame on you!"); outputQueue.push(operatorStack.pop()); } operatorStack.pop(); } } while (operatorStack.length != 0) { if (!operatorStack[operatorStack.length-1].match(/([()])/)) outputQueue.push(operatorStack.pop()); else throw("Parenthesis balancing error! Shame on you!"); } return outputQueue.join(" "); } function isOperator(token) { if (!token.match(/([*+-\/])/)) return false; else return true; } function isNumber(token) { if (!token.match(/([0-9]+)/)) return false; else return true; } function getPrecedence(token) { switch (token) { case '^': return 9; case '*': case '/': case '%': return 8; case '+': case '-': return 6; default: return -1; } } function getAssociativity(token) { switch(token) { case '+': case '-': case '*': case '/': return 'left'; case '^': return 'right'; } } It works fine so far. If I give it: ((5+3) * 8) It will output: Infix: ((5+3) * 8) Postfix (RPN): 5 3 + 8 * Result: 64 However, I'm struggling with implementing the unary operators so I could do something like: ((-5+3) * 8) What would be the best way to implement unary operators (negation, etc)? Also, does anyone have any suggestions for handling floating point numbers as well? One last thing, if anyone sees me doing anything weird in JavaScript let me know. This is my first JavaScript program and I'm not used to it yet.

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