Hi all,
I'm using cyrus-imapd 3.0.8 and I'm trying to set up a rolling backup over imap as csync is marked as obsolete. According to the documentation I configured the servers this way: master: --%snip%-- # imapd.conf sync_log: yes sync_log_channels: backup backup_sync_host: my.backupserver.local backup_sync_port: imap backup_sync_try_imap: yes backup_sync_authname: cyrus backup_sync_password: somepassword backup_sync_repeat_interval: 1 --%snip%-- replica: --%snip%-- # cyrus.conf SERVICES { imap cmd="imapd" listen="*:imap" } --%snip%-- Testing: > $ echo ". logout" | nc my.backupserver.local 143 > * OK [CAPABILITY IMAP4rev1 LITERAL+ ID ENABLE LOGINDISABLED AUTH=CRAM-MD5 > AUTH=DIGEST-MD5 SASL-IR] my.backupserver.local Cyrus IMAP 3.0.8-1.el7 RHEL > server ready > * BYE LOGOUT received > . OK Completed As far as I understood this should be sufficient to make sync_client use imap in favor of csync. Unfortunately, sync_client isn't sending valid imap commands to the server. > $ strace -y -yy -e connect,read,write -s 1024 sync_client -n backup -o -l -v > -u user1 |& egrep '(TCP|pipe):' > connect(5<TCP:[44275807]>, {sa_family=AF_INET, sin_port=htons(143), > sin_addr=inet_addr("192.168.1.253")}, 16) = -1 EINPROGRESS (Operation now in > progress) > read(5<TCP:[172.31.254.1:44144->192.168.1.253:143]>, "* OK [CAPABILITY > IMAP4rev1 LITERAL+ ID ENABLE LOGINDISABLED AUTH=CRAM-MD5 AUTH=DIGEST-MD5 > SASL-IR] my.backupserver.local Cyrus IMAP 3.0.8-1.el7 RHEL server ready\r\n", > 4096) = 174 > write(5<TCP:[172.31.254.1:44144->192.168.1.253:143]>, "EXIT\r\n", 6) = 6 > read(5<TCP:[172.31.254.1:44144->192.168.1.253:143]>, "* BAD Invalid tag\r\n", > 4096) = 19 > write(2<pipe:[44272774]>, "Can not connect to server > 'my.backupserver.local'\n", 61Can not connect to server > 'my.backupserver.local' Now when I change "backup_sync_try_imap: yes" to "sync_try_imap: yes" it seems to be working at first but then another connection opens and fails: > $ strace -y -yy -e connect,read,write -s 1024 sync_client -n backup -o -l -v > -u user1 |& egrep '(TCP|pipe):' > connect(5<TCP:[44278756]>, {sa_family=AF_INET, sin_port=htons(143), > sin_addr=inet_addr("192.168.1.253")}, 16) = -1 EINPROGRESS (Operation now in > progress) > read(5<TCP:[172.31.254.1:44420->192.168.1.253:143]>, "* OK [CAPABILITY > IMAP4rev1 LITERAL+ ID ENABLE LOGINDISABLED AUTH=CRAM-MD5 AUTH=DIGEST-MD5 > SASL-IR] my.backupserver.local Cyrus IMAP 3.0.8-1.el7 RHEL server ready\r\n", > 4096) = 174 > write(5<TCP:[172.31.254.1:44420->192.168.1.253:143]>, "A01 AUTHENTICATE > DIGEST-MD5\r\n", 29) = 29 > read(5<TCP:[172.31.254.1:44420->192.168.1.253:143]>, "+ ...", 4096) = 276 > write(5<TCP:[172.31.254.1:44420->192.168.1.253:143]>, "...", 410) = 410 > read(5<TCP:[172.31.254.1:44420->192.168.1.253:143]>, "+ > cnNwYXV0aD05Y2E1ZDgyNmMyNTZkNTc0ODhlNmFiMDBkMTVjNjY0Mw==\r\n", 4096) = 60 > write(5<TCP:[172.31.254.1:44420->192.168.1.253:143]>, "...", 36) = 36 > connect(5<TCP:[44278759]>, {sa_family=AF_INET, sin_port=htons(143), > sin_addr=inet_addr("192.168.1.253")}, 16) = -1 EINPROGRESS (Operation now in > progress) > read(5<TCP:[172.31.254.1:44424->192.168.1.253:143]>, "* OK [CAPABILITY > IMAP4rev1 LITERAL+ ID ENABLE LOGINDISABLED AUTH=CRAM-MD5 AUTH=DIGEST-MD5 > SASL-IR] my.backupserver.local Cyrus IMAP 3.0.8-1.el7 RHEL server ready\r\n", > 4096) = 174 > write(5<TCP:[172.31.254.1:44424->192.168.1.253:143]>, "EXIT\r\n", 6) = 6 > read(5<TCP:[172.31.254.1:44424->192.168.1.253:143]>, "* BAD Invalid tag\r\n", > 4096) = 19 > write(2<pipe:[44306013]>, "Can not connect to server > 'my.backupserver.local'\n", 61Can not connect to server > 'my.backupserver.local' Am I missing something? Best, Philippe